Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d13afdecc1242b0…

MALICIOUS

PDF

41.2 KB Authoring application: Soda PDF
MD5: fb77624dfa0db213034614927d3fcd17 SHA-1: 76f260375acb7f50efa1a9b9bcc6944309ed0de7 SHA-256: 7d13afdecc1242b015eec6482d97a9fff1d6135a827aaa4ce9288f1cd7b2bf40
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically related to phishing. The embedded URLs are likely used to redirect users to malicious content or further phishing pages.

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.healthandimmunitylymedisease.com/uploads/1/3/0/8/130814227/sifogen.pdf
    • http://tigerspawsportsapparel.com/uploads/1/3/0/5/130588328/1aa134cb40fe936.pdf
    • http://mgriffithdesign.com/uploads/1/3/0/5/130541661/korumulirefin.pdf
    • http://writersboutique.ca/uploads/1/3/0/9/130969750/188dfe043d5495.pdf
    • http://allbacksosteo.com/uploads/1/3/0/4/130476091/puzopinupek_datonulugufuv_gutavidagikarod.pdf
    • http://cityofharlemmontana.com/uploads/1/3/0/2/130287989/5af395c387bcce.pdf
    • http://grassrootsdrift.com/uploads/1/3/0/4/130489696/eee6a76a95.pdf
    • http://powleague.com/uploads/1/3/0/4/130477028/5600841.pdf
    • http://iheartskihealth.com/uploads/1/3/0/3/130324288/8100450.pdf
    • http://northernvalleysportinggoods.com/uploads/1/3/0/4/130491599/sewusurojam.pdf
    • http://clogdancing.us/uploads/1/3/0/7/130739533/db5c4.pdf
    • http://mrskoernersartroom.com/uploads/1/3/0/7/130776204/zelelasufil.pdf
    • http://nh-dreamhomes.com/uploads/1/3/0/4/130490451/88343c5.pdf
    • http://motoringlegaladvice.com/uploads/1/3/0/3/130324419/eb5415e7fa6383.pdf
    • http://ilovefatjacks.store/uploads/1/3/0/8/130814462/falagujawavuto.pdf
    • http://grumpysgreen.com/uploads/1/3/0/6/130603818/3da896dcb827.pdf
    • http://www.flairparlour.com/uploads/1/3/0/8/130813604/18e89d689ab51e.pdf
    • http://breznjak-interijeri.com/uploads/1/3/0/6/130604231/130604231.html#concepto+arquitectonico+deconstructivismo
    • http://writersboutique.ca/uploads/1/3/0/9/13096975

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004306.bin
6b676681345d514a79052522eaa8305a8bc284207214e3867252290e63471142		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4306 9288 bytes

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