Malicious RTF — malware analysis report

Static analysis result for SHA-256 9b577c036fb9957c…

MALICIOUS

RTF

90.1 KB Created: 2019-05-28 19:25:00 First seen: 2020-05-14
MD5: d6eb93799a9231bc7095d10e22f560b8 SHA-1: c97769b280ca5b8140ed5b35ba399a85f600f1c3 SHA-256: 9b577c036fb9957cd4892f7b085dce9fbfa6ada414a33615b78da9efcd6aeb0d
142 Risk Score

Heuristics 5

  • Suspicious extracted artifact critical 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.
  • \objupdate forces OLE activation high RTF_OBJUPDATE
    RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects
  • Embedded OLE object medium RTF_OBJEMB
    RTF contains \objemb — embedded OLE object
  • 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.microsoft.com/office/word/2003/wordml In RTF body
    • https://bit.ly/2Klt048In RTF body

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0001366e.bin rtf-objdata-decoded RTF \objdata at offset 0x1366E 1400 bytes
SHA-256: e7e1be4938277226aaac8ae9a434c8de8a447cea439273f3cacbe5a967de0a41
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Static shellcode analysis recovered URL(s): https://bit.ly/2Klt048 Static shellcode analysis found candidate code region(s). Indicators: SC_STR_LOADLIBRARY, SC_STR_URLDOWNLOAD, SC_PEB_ACCESS Static shellcode analysis recovered API/import strings: LoadLibraryA, GetProcAddress, URLDownloadToFileA, ShellExecuteA, ExitProcess