Malicious PDF — malware analysis report

Static analysis result for SHA-256 461f3d69c3046cb3…

MALICIOUS

PDF

40.0 KB Authoring application: SWFTools
MD5: 75188111831efac1e3ac658e1f52d863 SHA-1: 603706053b326f5d0f0727e14f337e1eca3e5156 SHA-256: 461f3d69c3046cb3db1b231948fa5960043c912ba50a5c0e335ee3b926c85e7f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious classification. No scripts were extracted from this sample, and the document body content is largely unreadable due to encoding issues.

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://streetwerkzcustoms.com/uploads/1/3/0/6/130620574/e13607.pdf
    • http://mychampionlifechurch.com/uploads/1/3/0/7/130738710/3379496.pdf
    • http://birdislandplacenciabz.com/uploads/1/3/0/2/130289319/vutot-luvon.pdf
    • http://peopleandpipelines.com/uploads/1/3/0/7/130740414/kigabomazowi.pdf
    • http://bervilon.com/uploads/1/3/0/5/130551562/gewomulegade.pdf
    • http://anactofreason.com/uploads/1/3/0/8/130813998/6656841.pdf
    • http://innatribe.com/uploads/1/3/0/5/130550789/didad_sewifude_muwiwipurokuza_xagaxade.pdf
    • http://savianflaviusdesigns.com/uploads/1/3/0/5/130589057/695408.pdf
    • http://nangreypottery.com/uploads/1/3/0/8/130814339/folab_pigosekexuz.pdf
    • http://turtleconsultancy.com/uploads/1/3/0/2/130288893/4770592.pdf
    • http://darearcade.com/uploads/1/3/0/2/130287472/lapofuvokos-roxefujefirukor-pusexabubufe.pdf
    • http://100wwclickingcounty.org/uploads/1/3/0/6/130621387/860725ff260fc1.pdf
    • http://exceptionalgeeks.com/uploads/1/3/0/5/130550848/gapolaxago.pdf
    • http://www.anitamorrissey.com/uploads/1/3/0/5/130543539/5ca1ae682fa240.pdf
    • http://ecarsindia.in/uploads/1/3/0/6/130621597/7400128.pdf
    • http://74-123-77-70.mgwnet.com/uploads/1/3/0/2/130287852/130287852.html#cursive+alphabet+writing+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000040f1.bin
38a34ce45966e7aef64efeedfff5e1b42cc85659a83b87b3d282a6a4067f8d72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x40F1 8200 bytes

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