Malicious PDF — malware analysis report

Static analysis result for SHA-256 97442ddbafe072fb…

MALICIOUS

PDF

31.2 KB Authoring application: SWFTools
MD5: cf741f9f4ba638ad3f3e2f03b040415d SHA-1: f3a0548b80e4ecceb43587e41cece62cc7badb6e SHA-256: 97442ddbafe072fb2be0aadfc07c66b135ff92f01c6451094423ae000dd67496
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF documents, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. The embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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
  • 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://morongovalley.org/uploads/1/3/0/5/130589140/zugafupibabe.pdf
    • http://cutepigproductions.net/uploads/1/3/0/3/130379205/tisebopibafelarex.pdf
    • https://pazisomesujuxiz.weebly.com/uploads/1/3/0/2/130271017/74499b75b.pdf
    • http://5-8dublinmiddle.com/uploads/1/3/0/4/130492689/382893.pdf
    • http://lbjconsult.com/uploads/1/3/0/5/130588203/994352.pdf
    • http://kellenwood4beacon.org/uploads/1/3/0/6/130604602/zugezokawunivowiwej.pdf
    • https://lifesejarese.weebly.com/uploads/1/3/0/5/130588246/9661726.pdf
    • http://bananawear.online/uploads/2020/01/29/4d285c9.pdf
    • http://iweargreatness.com/uploads/1/3/0/2/130271145/155966.pdf
    • http://mauritskoelewijn.nl/uploads/1/3/0/5/130588649/256574.pdf
    • http://alicesenrichmentcenter.com/uploads/1/3/0/6/130639559/b4a986c.pdf
    • http://v-techsnc.com/uploads/1/3/0/6/130621719/f7c2ada.pdf
    • http://montessoritoysandfurniturecambodia.com/uploads/1/3/0/6/130603748/zizovoxanita_xadibanutuv_taxat.pdf
    • http://kreativekidsworld.com/uploads/1/3/0/2/130287367/130287367.html#youtube+beethoven+5th+symphony+3rd+movement

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000138b.bin
979e0fa56708361d00342ed1513e158dc73737efa04426ff9cdb939c45a281bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x138B 8132 bytes

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