Malicious PDF — malware analysis report

Static analysis result for SHA-256 884417ea5d86f376…

MALICIOUS

PDF

32.2 KB Authoring application: Inkscape
MD5: 18d0a170dfbc820c8ff3217e14072469 SHA-1: 87aa2d0abf2e6916af6b4827c8aaeb2dd1f303bf SHA-256: 884417ea5d86f376aff2c1ad648a45a6f7120c4b4af3143bb7c318111d3d3906
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a large number of embedded URLs, identified by the 'PDF_SEO_LINK_FARM' heuristic, suggesting a malicious intent to redirect users or manipulate search engine results. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports its malicious nature. While no scripts were explicitly extracted, the presence of numerous external links points towards a phishing or SEO spam campaign.

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://baludef.respektmebel.ru/uploads/2020/01/27/ac82031bde04.pdf
    • http://zorozuz.punish-me-for.fun/uploads/2020/01/28/runomev_ziwexi.pdf
    • http://comedianjordanjackson.com/uploads/1/3/0/6/130621686/puxanewefavifepozob.pdf
    • http://nelsonfirm.com/uploads/1/3/0/3/130379548/debejunabaforupisupo.pdf
    • http://dearbornpainterpros.com/uploads/1/3/0/4/130483923/vagifixugifa.pdf
    • http://tate.betterqualityreviews.com/uploads/2020/01/28/vereli.pdf
    • http://suzannefife.com/uploads/1/3/0/5/130590051/movitikodowo.pdf
    • http://clash-x.space/uploads/2020/01/28/menevuleme_dujobof.pdf
    • http://magdasita.studio/uploads/1/3/0/4/130435624/106029.pdf
    • https://kudurisila.weebly.com/uploads/1/3/0/4/130436285/fa3d5d120f1fba.pdf
    • http://justartborzoi.weebly.com/uploads/1/3/0/5/130539179/1573407.pdf
    • http://policetrailer.com/uploads/1/3/0/3/130379612/130379612.html#erasmus+mundus+programme+guide+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000126d.bin
1ed04b08fa9dfa0cb0be9f283d2473f5edc8d79a72192b4f5e7b81ce08e8a804		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126D 7412 bytes

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