Office (OLE) / .DOCX malware analysis — malicious · cdc79700b8df88f1

MALICIOUS

Office (OLE) / .DOCX

147.0 KB Created: 2021-04-27 23:18:00 Authoring application: Microsoft Office Word

MD5: 5314ae13ca9c4bd188c15b6e16dd26d6 SHA-1: e0e6a6be76b0b1b1ad3c4814d4f8dbe2a0c38262 SHA-256: cdc79700b8df88f137a9d23e24abb9fb927b34801ad09fd05b7794ca0f4760fc

220 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The presence of a Document_Open macro that utilizes CreateObject and references Windows Script Host strongly indicates malicious intent. The macro likely executes code to download a payload from the embedded URL http://scaladevelopments.scaladevco.com/13Z/FPI_0485010214.ex. The document body content is heavily obfuscated and appears to be image data, providing no direct clues to the lure.

Heuristics 7

Reference to Windows Script Host high SC_STR_WSCRIPT

Reference to Windows Script Host
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
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://scaladevelopments.scaladevco.com/13Z/FPI_0485010214.ex
- http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `b6afe52fc14af505671521c53a25a1d781a56c563fa89d544a4d4d4b2a8687dd`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	907 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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