Malicious PDF — malware analysis report

Static analysis result for SHA-256 284974d567d0650f…

MALICIOUS

PDF

30.8 KB Authoring application: Adobe PDF Library 9.0
MD5: 9fe3e008589f50a1437fa01e0965cab2 SHA-1: e7151f768feff78ee6204229f270724057b6ef78 SHA-256: 284974d567d0650febbfbd7944c1e46d0986bc54c0fc08a54e69f56272c67eff
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by multiple heuristics, including a critical finding for a link farm and a machine learning classifier indicating maliciousness. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports this. The document contains a large number of embedded URLs pointing to external PDF files across various domains, suggesting a tactic to manipulate search engine results or distribute additional malicious content. No scripts were extracted from this sample.

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://poshexecutivetravel.com/uploads/1/3/0/5/130539002/1191945.pdf
    • http://splinteredmindprints.com/uploads/1/3/0/2/130272619/ninopiwixagad.pdf
    • http://www.theresatammik.net/uploads/1/3/0/6/130621382/c186c9ce1.pdf
    • http://rng-studios.net/uploads/1/3/0/5/130546574/ridatidovuj_bigutak_xexexodono.pdf
    • http://pamelagallagher.com/uploads/1/3/0/3/130323213/4f0071d8e2.pdf
    • http://hadascapital.com/uploads/1/3/0/6/130604486/kidinum-tapaga-suxisabuki-wuwobirir.pdf
    • http://doolbymobiledraws.com/uploads/1/3/0/6/130605369/zupobibimoxoke-vifuxodaget-tobufujuwu-soxedasi.pdf
    • http://producebros.com/uploads/1/3/0/6/130639117/gasupuvijojogu.pdf
    • http://genxtraining.ca/uploads/1/3/0/4/130483288/tomazidusuro-zemewenojeja-fugititagi-litemi.pdf
    • http://kspencerdesigns.com/uploads/1/3/0/5/130539479/4abdca6224d.pdf
    • http://www.peinturecreation.com/uploads/1/3/0/5/130550874/7308606.pdf
    • http://www.youtheconomicrevival.co.za/uploads/1/3/0/2/130291531/ca2d0d3c3bac.pdf
    • http://mianduimianshipinqipaiyouxi.br3h.com/uploads/1/3/0/5/130590583/130590583.html#red+hat+linux+admin+salary
    • http://www.peinturecreation.com/uploads/1/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002047.bin
3195a8975e4b3896fd38f9ac44c7797ef0a6116ed02c83b33757c70d599d13ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2047 7588 bytes

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