Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd425609144afa3…

MALICIOUS

PDF

40.3 KB Authoring application: Pdftk
MD5: 4bffa741c9edab7a6ea513a4d21709b5 SHA-1: 0c89b1d721bf9035cd38430dc4f9cff147abddda SHA-256: 9dd425609144afa316560318c498f1b2fcb7a6c186c825747247da7af9a7cd3c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of embedded URLs, forming a link farm. This is indicative of a phishing or malware distribution campaign. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports this assessment. No scripts were extracted from this sample, and the document body was heavily obfuscated, making it difficult to determine the exact lure.

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://bensonchu.com/uploads/1/3/0/3/130323635/9171502.pdf
    • http://deerwoodgroup.com/uploads/1/3/0/2/130270936/lekusi.pdf
    • http://12utct.com/uploads/1/3/0/5/130541950/4833441.pdf
    • http://youarebow.com/uploads/1/3/0/6/130603673/nelurajowaderu_gilimulam_tetudilal.pdf
    • http://www.relxthai.com/uploads/1/3/0/7/130738528/nixujowabexonebuz.pdf
    • http://jilleversmartin.com/uploads/1/3/0/2/130272231/zonajawuv.pdf
    • http://webmail.scholarshipsforscholarsofmontebello.org/uploads/1/3/0/9/130969772/2443474.pdf
    • http://mrpodmers.com/uploads/1/3/0/3/130312952/9ad4cf8e7f81.pdf
    • http://nuttybeepdx.com/uploads/1/3/0/7/130775732/lerakazew.pdf
    • http://hannahegrace.com/uploads/1/3/0/2/130287428/361689.pdf
    • http://www.shamelesspourspod.com/uploads/1/3/0/2/130289782/pamilozulan.pdf
    • http://dinosgrilledburger.com/uploads/1/3/0/3/130313306/duzizuvivigalup-surinotulifanov-vofex-jopesa.pdf
    • http://www.nancyjmiller.net/uploads/1/3/0/7/130775510/rimesoledowomaxeb.pdf
    • http://www.welcometothesystem.com/uploads/1/3/0/5/130543239/zorugiliw-tesavowodanevef-raxupegik-disuvu.pdf
    • http://bayareasofareviews.com/uploads/1/3/0/3/130323892/zubez.pdf
    • http://www.dieawesome.com/uploads/1/3/0/8/130874610/sevemesax.pdf
    • http://hmsyearbook.com/uploads/1/3/0/2/130288359/falufon-kejufodedazoxop-xasepozodu.pdf
    • http://facefeats.com/uploads/1/3/0/4/130436078/2476238e5afe.pdf
    • http://mogadoresystems.com/uploads/1/3/0/4/130483811/tubadumirup-vanokafewene.pdf
    • http://philippemora.net/uploads/1/3/0/7/130776307/c65f9.pdf
    • http://babypost.org/uploads/1/3/0/4/130476320/basemiso-nazokemuvupa.pdf
    • http://delhiescortservice.agency/uploads/1/3/0/5/130551659/zitiwatobe.pdf
    • http://sparkerisland.com/uploads/1/3/0/2/130273987/de828.pdf
    • http://www.naturaloregonbirth.com/uploads/1/3/0/6/130622104/jelarogisufol.pdf
    • http://edgertoncentermakerspace.com/uploads/1/3/0/6/130604210/a964e.pdf
    • http://adsl-63-204-18-34.benefitplans.org/uploads/1/3/0/6/130621077/130621077.html#alienware+15+r3+2242+ssd
    • http://bayareasofareviews.c

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000036b1.bin
9def8be5ee32c14891fc3405497d88fded77c80f784440f7bdb83fc603fd10f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x36B1 8728 bytes

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