Malicious Office (OLE) / .DOC — malware analysis report

Static analysis result for SHA-256 4219dd0fbae4f8d9…

MALICIOUS

Office (OLE) / .DOC

416.5 KB Created: 2021-06-10 08:54:00 Authoring application: Microsoft Office Word
MD5: ee4431e2c986dcac3fc8078c674ba65e SHA-1: 64aa75122963e38f52739ba819788e4bfcfb3651 SHA-256: 4219dd0fbae4f8d9e9964eac82293fefc6a7f1b75242473f6347daed349198a2
222 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The sample is a malicious OLE document containing VBA macros. The 'Document_Open' macro is present and uses 'CreateObject', indicating it likely executes code automatically upon opening. The embedded URL suggests a download lure, aiming to trick the user into executing a second-stage payload.

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 — context-specific rules above attribute URLs they actually evaluated; this rule lists URLs that were present in the bytes but were not otherwise tied to a specific finding.
    URL http://31.210.20.45/1xBet/RFL_0769002.ex
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
97caaeb58d5989479c12d43da978424bdc920ea0c6cff1f933632bc35648b26e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 836 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 8 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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