Malicious PDF — malware analysis report

Static analysis result for SHA-256 17f42f7f44c0e2a0…

MALICIOUS

PDF

40.3 KB Authoring application: Soda PDF
MD5: 87debc2a12a089c4392bb219da68a456 SHA-1: d72787e26e148c5d064ad53e7c45f2bac8bf6fa9 SHA-256: 17f42f7f44c0e2a0d07a046baab5a321fdc64030b621e04759edbf427109040c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule and ClamAV detection as Pdf.Phishing.TtraffRobotInstall. The embedded URLs suggest a link farm designed to distribute further malicious PDFs, likely as part of a phishing or SEO spam campaign. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://cahabaclothing.net/uploads/1/3/0/4/130488574/9044820.pdf
    • http://comfortmypeoplerwanda.org/uploads/1/3/0/7/130776489/zafasozoj.pdf
    • http://www.munir-zakee-1.solightpro.com/uploads/1/3/0/7/130738890/e45f4cfd6.pdf
    • http://fckdepression.com/uploads/1/3/0/5/130551692/rowaxabofatuxe.pdf
    • http://frwk.org/uploads/1/3/0/4/130490078/wovusekefowu-wuwegebofivi-panin-vedabemipa.pdf
    • http://researchforprogress.net/uploads/1/3/0/3/130379461/8c45265.pdf
    • http://ammaartdebienetre.com/uploads/1/3/0/3/130323126/godawoket_sanejedaravaxib.pdf
    • http://amazingembroiderydesigns.net/uploads/1/3/0/6/130604768/fadufimusib.pdf
    • http://reddingwoodrvpark.com/uploads/1/3/0/5/130539009/noxokejepe-kunumifa-pimobikov-xeravarup.pdf
    • http://www.the-lpg.com/uploads/1/3/0/2/130291475/7523495.pdf
    • http://limeandthyme.com/uploads/1/3/0/7/130739093/75f898d.pdf
    • http://mooderopah.co.uk/uploads/1/3/0/6/130604173/4b41bc03a94.pdf
    • http://encroachingkittens.org/uploads/1/3/0/4/130483193/d15a9726.pdf
    • http://flember.com/uploads/1/3/0/3/130379435/1921246.pdf
    • http://glynisfrancis.co.uk/uploads/1/3/0/7/130775455/2009741.pdf
    • http://www.loveandlightbeyours.com/uploads/1/3/0/7/130775384/069d1586.pdf
    • http://mizzenmanagement.com/uploads/1/3/0/5/130589045/766a987767f35fe.pdf
    • http://www.mellowspaparties.com/uploads/1/3/0/6/130620251/0f1417c7c8.pdf
    • http://instituteoffinancialliteracy.org/uploads/1/3/0/5/130550930/3058753.pdf
    • http://allathletesexpo.com/uploads/1/3/0/4/130476119/c1e63d3c0305ea.pdf
    • http://circoestodo.org/uploads/1/3/0/5/130539840/bokotexewikutan_wogoli_fenepijisuv.pdf
    • http://74-123-78-37.mgwnet.com/uploads/1/3/0/6/130604728/130604728.html#pseudomonas+aeruginosa+nitrate+test
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002dcc.bin
4d9ec2aec8f1ca6bebe1b56492fd55a77bba3a6e98efb76508c1b835d4eb9912		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DCC 2860 bytes
font_01_sfnt_off00003a89.bin
cb7afabe4512dc280f62af5c8a71c6691563ca1f9dcced292a04714529f7864f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3A89 8576 bytes

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