Malicious PDF — malware analysis report

Static analysis result for SHA-256 74f4b6ac8cb9bbb1…

MALICIOUS

PDF

42.1 KB Authoring application: Soda PDF
MD5: 7c93f365642ccb67226ade32fd92024e SHA-1: 16461e7ed92ff14ab77df6e1907b5972b7ada9af SHA-256: 74f4b6ac8cb9bbb1de92bc885c1b30763ebaee7600ce8ee720da1fc6a055404b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV detected this file as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', and an ML classifier also flagged it as malicious. No scripts were extracted, but the sheer volume of external links suggests a malicious intent to redirect users to potentially harmful sites.

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://www.beautifullyuncluttered.com/uploads/1/3/0/3/130323469/zixemasi.pdf
    • http://newstokenpool.com/uploads/1/3/0/2/130289652/gitir.pdf
    • http://hostmaster.house-of-yoga.ch/uploads/1/3/0/7/130739806/tilotole.pdf
    • http://dlhp-solutions.com/uploads/1/3/0/7/130776503/xitubiluw.pdf
    • http://twocities.net/uploads/1/3/0/8/130814238/923549.pdf
    • http://pinchapennytravel.com/uploads/1/3/0/5/130588951/bekosuw-tiresugekilifek-jadositirorilo-megod.pdf
    • http://www.recovery-focused-living.com/uploads/1/3/0/9/130968935/zosebowenagoz.pdf
    • http://rspmadison.org/uploads/1/3/0/8/130873876/fabuxar_lixixagu.pdf
    • http://ampedupelectric.net/uploads/1/3/0/5/130543373/gegonisipug.pdf
    • http://mkmindreader.com/uploads/1/3/0/7/130776061/f5ee83.pdf
    • http://alexanicolebooks.com/uploads/1/3/0/6/130621233/deb3b8.pdf
    • http://thequinterogroup.net/uploads/1/3/0/6/130620902/3580931.pdf
    • http://bravohobby.com/uploads/1/3/0/4/130476148/d650eebec9ca687.pdf
    • http://pathogenassassin.com/uploads/1/3/0/6/130605267/rirelotamepupor_tavemutip.pdf
    • http://www.orangegrovegiftco.com/uploads/1/3/0/7/130738944/4325229.pdf
    • http://ohchiconline.com/uploads/1/3/0/2/130274169/86cfd3a54f33f01.pdf
    • http://www.360financialcents.com/uploads/1/3/0/4/130489241/130489241.html#great+wall+of+china+map+shanghai
    • http://ptc.company.com/uploads/1/3/0/5/130551720/9706190.pdf
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031db.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31DB 16036 bytes
font_01_sfnt_off000048d4.bin
6fc541cf5cc74929d8bd8dbb75665d30cd5920307a74c2e0e806b06b7d71dfc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48D4 7536 bytes

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