Malicious PDF — malware analysis report

Static analysis result for SHA-256 170ee8b586b65101…

MALICIOUS

PDF

38.6 KB Authoring application: ImageMagick
MD5: 3ba52348e887ba550fab853277805833 SHA-1: e0ea8cf432a7fdd58aa922a6e95ef29afef59352 SHA-256: 170ee8b586b65101c18598626935a313ed332f4dabeff7934ef6bf91c33802f1
152 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The primary attack pattern involves a link farm of 26 external PDF files, suggesting a tactic to manipulate search engine results or distribute further malware. No scripts were extracted, but the embedded URLs are the highest priority IOCs.

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://eurekaarchitecture.com/uploads/1/3/0/6/130639849/6713e2d6a66.pdf
    • http://www.lucascoffey.me/uploads/1/3/0/7/130738971/9824302.pdf
    • http://chorusturkey.gov.tr/uploads/1/3/0/6/130604759/leraritoziwibubof.pdf
    • http://canyonsohana.com/uploads/1/3/0/7/130739688/3828758.pdf
    • http://thejewelryaddict.com/uploads/1/3/0/4/130435783/xikisusel-zizolofani-falawojusivuw-wimora.pdf
    • http://affinityforever.com/uploads/1/3/0/2/130287281/9586233.pdf
    • http://www.crccpllc.com/uploads/1/3/0/7/130738543/d087f2269785c1.pdf
    • http://bibledaily.com/uploads/1/3/0/8/130813779/4498020.pdf
    • http://www.electrotech.vip/uploads/1/3/0/5/130588657/molelavide.pdf
    • http://crimsonskybooks.com/uploads/1/3/0/4/130488970/9104836.pdf
    • http://alesgutierrez.com/uploads/1/3/0/8/130874157/83ae3a69e21.pdf
    • http://leadershipcv.net/uploads/1/3/0/2/130291561/b68a671cf.pdf
    • http://rosefischer.com/uploads/1/3/0/7/130775199/vigekigupokode_sebodozez_vijalarovakix_libawuzinajaruv.pdf
    • http://dedicated-3.pleasingfood.com/uploads/1/3/0/6/130604710/130604710.html#daily+nation+news+paper+kenya+today

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003e84.bin
63dfec7b73b8da98dffbe5372fc9dd0d64fd5681e0c1d929029f8de42c9a92bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3E84 7724 bytes

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