Malicious PDF — malware analysis report

Static analysis result for SHA-256 13fef420b10dfacb…

MALICIOUS

PDF

42.6 KB Authoring application: PDF Studio
MD5: 48393949fc4942eafd2cb9e6ef8b9d98 SHA-1: ba678608e2d6f397a0788943488e37fece99a82d SHA-256: 13fef420b10dfacba1056f80b4d6986ce4b30873a963a170272bed982f05d39d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV also flagged this file as malicious, with ClamAV specifically identifying it as Pdf.Phishing.TtraffRobotInstall. The embedded URLs are likely used to redirect users to phishing or malware distribution sites, and the document body's mention of 'passbook member portal password' suggests a credential harvesting attempt.

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://autodiscover.byhisgracechurch.org/uploads/1/3/0/3/130379314/pevenefa.pdf
    • http://www.pancanadaimmigration.ca/uploads/1/3/0/2/130288549/4ed452448.pdf
    • http://mail.bydenfarm.com/uploads/1/3/0/4/130476307/8128421.pdf
    • http://www.yardexpressions.org/uploads/1/3/0/7/130776328/jixaxakisudimajubim.pdf
    • http://eveningshadows.org/uploads/1/3/0/4/130489262/46d4aa.pdf
    • http://fijamulder.nl/uploads/1/3/0/7/130775248/jinuwasovorixuv-barodoxama-fageniga-taleputoriz.pdf
    • http://metalwindowrestoration.com/uploads/1/3/0/7/130738951/zivekela.pdf
    • http://www.mycartilage.com/uploads/1/3/0/2/130289166/f5b5347.pdf
    • http://ragecola.com/uploads/1/3/0/3/130379818/xefax-fejajotiluxaka.pdf
    • http://b-e-n-z-internationaltrading.com/uploads/1/3/0/6/130639054/vuxapowiv-zobasesavobewe-faputisafibu.pdf
    • http://sarahdietman.com/uploads/1/3/0/3/130313673/namolalo-tojesizipa.pdf
    • http://newfilmmakersadventure.com/uploads/1/3/0/3/130313766/wogenuz.pdf
    • http://barcraisetheruff.com/uploads/1/3/0/8/130873735/4214602.pdf
    • http://farmersmarketpettreats.com/uploads/1/3/0/6/130621812/sesap.pdf
    • http://destinationweddingsbigisland.com/uploads/1/3/0/4/130476516/1082727.pdf
    • http://akysora.com/uploads/1/3/0/5/130550944/c3dadf.pdf
    • http://thesegirlslie.com/uploads/1/3/0/3/130379610/robavabozage.pdf
    • http://toosrodieck.com/uploads/1/3/0/6/130605166/5645408.pdf
    • http://treatyougood.com/uploads/1/3/0/7/130739593/daziso.pdf
    • http://vandormadar.virtus.hu/uploads/1/3/0/6/130639026/wovuni.pdf
    • http://etherialengine.com/uploads/1/3/0/6/130605355/63aad572.pdf
    • http://elainepace.com/uploads/1/3/0/6/130604495/130604495.html#epf+passbook+member+portal+password
    • 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_off00002cd3.bin
32b54217619f9438721b423dc2f4f4da0f78781b0811ea49af2be6b0310ecf56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD3 16164 bytes
font_01_sfnt_off000044b2.bin
d182a9a6e15a5f3aa46afd9a00463073098fc5489e260457d19595c2a89cd568		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44B2 8356 bytes

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