Malicious PDF — malware analysis report

Static analysis result for SHA-256 39392a5f2ad329bd…

MALICIOUS

PDF

41.0 KB Authoring application: pstoedit
MD5: 416a612f8e51d353e9ec3b1c370af6e1 SHA-1: b8b8d999cc6ee8add17e434b2086f78e3cac48e7 SHA-256: 39392a5f2ad329bd7895a851ce63ada6d570a5bcba8281c22e3bb8b4923d5b0d
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious classification. The document body, though partially corrupted, contains text related to 'Telephone interview questions template' and includes URLs that appear to be part of a link farm, suggesting a phishing or SEO manipulation scheme.

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://xobiduze.vertoli.ru/uploads/2020/01/29/2790863.pdf
    • http://chironics.com/uploads/1/3/0/6/130639175/ligaw.pdf
    • http://mhcs.me/uploads/1/3/0/6/130620619/lumudi-watemowod-zaluvexinoja.pdf
    • http://money4surveys.net/uploads/1/3/0/7/130740213/wubalabek.pdf
    • http://blitzfund.org/uploads/1/3/0/4/130483759/rapakalarine.pdf
    • http://bellabee.org/uploads/1/3/0/5/130551467/xevujumo_bapodusuzete.pdf
    • http://ncmusictherapy.org/uploads/1/3/0/4/130435570/rulameneluvipafiz.pdf
    • http://jijo.digosrescuewatch.com/uploads/2020/01/29/7647544.pdf
    • http://mrmcwheely.net/uploads/1/3/0/2/130291531/4132421.pdf
    • http://jituxul.migrascop.ru/uploads/2020/01/28/fipoj.pdf
    • http://riversidecountyhistory.org/uploads/1/3/0/6/130604350/130604350.html#telephone+interview+questions+template

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001267.bin
75324cfe81db0b0d309b81226ba348120d3819d7557633005f567292655e1d37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1267 8448 bytes

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