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

Static analysis result for SHA-256 1f1377592f28fff0…

MALICIOUS

Office (OLE) / .DOC

38.5 KB Created: 2021-07-06 04:33:00 Authoring application: Microsoft Office Word
MD5: 3da27a30b57ba6c9e2b64203ec268fc8 SHA-1: 2b520eca3767e8a3039b671367092de2b21e1da2 SHA-256: 1f1377592f28fff06c0221c5c1f6e52ab949bc96701b3f05fd27d079915e57d3
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1071.001 Web Protocols

The sample is a malicious OLE document containing VBA macros. The macros utilize CreateObject and CallByName functions, indicative of malicious intent. Specifically, the script attempts to construct a URL using string concatenation and sends POST requests to 'https://fg-356-offis-dowload.com/ecm/ibm/1629834672/feedback'. The ClamAV detection 'Doc.Downloader.Valyria-10033997-0' further confirms its malicious nature as a downloader. The script's functionality suggests it is designed to download and execute a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Valyria-10033997-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Valyria-10033997-0
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • CallByName call high OLE_VBA_CALLBYNAME
    CallByName call
  • 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 https://fg-356-offis-dowload.com/ecm/ibm/1629834672/feedback
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
eece5c8b7fd4440887598978d4db76dc0d38fbf0fd4fbe6e5bbb2f3e165d4818		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 3134 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

Open this report in the interactive analyzer, or submit your own file for analysis.