Malicious PDF — malware analysis report

Static analysis result for SHA-256 a28eb837f070ab3c…

MALICIOUS

PDF

36.0 KB Authoring application: Karbon
MD5: 6ae612700f515c69397088b5b2fb1f09 SHA-1: 0b1a3057b0f10a0f20c4d20a1aafbc1d5aba41ea SHA-256: a28eb837f070ab3cca7fce43691bd7e98df14ef61337139d987cad99681d2b27
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, identified as a PDF_SEO_LINK_FARM heuristic. The document body also contains urgency language, suggesting a phishing lure. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious download intent. The embedded URLs likely lead to malicious content or further phishing attempts.

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://mksplumbingsocal.com/uploads/1/3/0/4/130490314/5196090.pdf
    • http://ghz.one/uploads/1/3/0/4/130435577/rikumemal_wususepu.pdf
    • http://lorisingleton.com/uploads/1/3/0/3/130379110/witonigunivuji-suzopedoroj.pdf
    • https://tovotexed.weebly.com/uploads/1/3/0/4/130476483/6478462.pdf
    • http://liamsamolis.com/uploads/1/3/0/6/130620494/papiwasivo.pdf
    • http://rgatesystems.com/uploads/1/3/0/4/130476024/nejuviki.pdf
    • http://misssoutheastpageantry.us/uploads/1/3/0/3/130323148/genenavaripap.pdf
    • http://naturebandz.com/uploads/1/3/0/4/130478551/2206339.pdf
    • http://solopianostylings.com/uploads/1/3/0/6/130605203/5138263.pdf
    • http://kelleycarney.com/uploads/1/3/0/4/130476396/dedd14.pdf
    • http://woodlandstuition.com/uploads/1/3/0/5/130589123/130589123.html#brat+diet+pdf+spanish

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011e9.bin
7fcc0740f0de2d7e8b5b633909f54a50ecf628b5276d6a53a3aad08bd3648ab8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11E9 7704 bytes

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