Office (OLE) / .DOCX malware analysis — malicious · 7dd7fcb839e3d187

MALICIOUS

Office (OLE) / .DOCX

736.0 KB Created: 2021-06-01 13:52:00 Authoring application: Microsoft Office Word

MD5: 3f89ed9e9e4be551f2d13b16287248c0 SHA-1: e62de0e0b43a2113a978032f06b45e60d9aa5742 SHA-256: 7dd7fcb839e3d18745b8dfd20dc6ef4f0fd6bad46597b10ec7649a2f7f364d0a

350 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File T1059.001 PowerShell T1105 Ingress Tool Transfer

The sample contains a Document_Open macro that executes VBA code. This code includes a Shell() call and CreateObject, indicating it attempts to download and execute a second-stage payload. The macro also displays a "Thank You!" message to the user, likely as a distraction. The ClamAV detection and appended payload further support its malicious nature. The specific URLs extracted are highly suspicious and likely serve as download locations for the secondary payload.

Heuristics 10

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Doc.Malware.Snake-10031454-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Snake-10031454-0
OLE file has appended executable-looking payload bytes high OLE_APPENDED_PAYLOAD

OLE 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.
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
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.
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Environ() call (env variable access) low OLE_VBA_ENVIRON

Environ() call (env variable access)
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 https://thegoldprocess=:ClegU.co=:ClegUm/uploa=:ClegUds=:ClegU/=:ClegUblog/8xFQnsDivjqalDy.php�
- https://zotno.xyzz
- https://!+qFl+;www.t!+qFl+;hew!+qFl+;ordmarvel.com/wp-admin/OdvB!+qFl+;FxAFpv15Pc5.php�
- https://t�w�Z��wn�x8�=��
- https://highpointroofers.com/wp-mpDLb$content/themes/ompDLb$ceanwp/sass/base/1TcAgp5H9dED.php
- https://thegoldprocess=:ClegU.co=:ClegUm/uploa=:ClegUds=:ClegU/=:ClegUblog/8xFQnsDivjqalDy.php
- https://2;@r2bra2;@r2silvioleiro.co2;@r2m.br/wp-content/cache/2;@r2object/e3c/9ab/rSpBh8UHQx2;@r28r.php
- https://ukcorporatetransfe!PSq
- https://breadxfish.com/wp-content/plugins/jetpack/imageC\y:$s/apps/JSmOEtJjnYb.pC\y:$hp
- https://mirrorlakedrugs.com/wp-content/themes/twentyseventeen/template-parts/footer/0Zy3@U3*mTL3hUtu.php
- https://re,tdxwsachmedical.in/changes/uplo,tdxwsads/file_format/5vixBSDMmITU.php
- https://!+qFl+;www.t!+qFl+;hew!+qFl+;ordmarvel.com/wp-admin/OdvB!+qFl+;FxAFpv15Pc5.php
- https://test.podcasV\k
- http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `c0bdf7cbecb8927856497cc725852a0d80ef4d6154bda3c6efcddb43788f2351`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	135371 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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