Malicious PDF — malware analysis report

Static analysis result for SHA-256 82d2bf2d707c847e…

MALICIOUS

PDF

40.4 KB Authoring application: Inkscape
MD5: d55a203de513339b7bffceb06ec4da98 SHA-1: 826ffb98e0606b7dfeeac5b6e2bba3c40eb26299 SHA-256: 82d2bf2d707c847edadc70e9868bd057451640d8204d9ea0d0a616117fa54219
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted on various domains. This technique is often used for SEO manipulation or to distribute further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, aligning with the PDF_SEO_LINK_FARM heuristic.

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://cayoconsulting.org/uploads/1/3/0/3/130379590/f5a0b6ba6ce1.pdf
    • http://ns2.mitasbakeshop.com/uploads/1/3/0/4/130476703/487b1fde1.pdf
    • http://strawhatgames.com/uploads/1/3/0/5/130589354/b3ec0f4604f.pdf
    • http://www.jackmcmahonfilm.com/uploads/1/3/0/4/130489465/ninekifijajugawobot.pdf
    • http://www.babybuddies.us/uploads/1/3/0/2/130272420/bafanuzaj-giperepa.pdf
    • http://vergisdigitalmarketing.com/uploads/1/3/0/6/130639267/bijuzumavepo.pdf
    • http://supertekamerica.com/uploads/1/3/0/6/130639845/fisawepikafakogana.pdf
    • http://oest.juniortalent.dk/uploads/1/3/0/7/130739204/lanop-zawexog-tozekasir-werelamozo.pdf
    • http://helpsy.com/uploads/1/3/0/5/130544072/ratunavogiso_welivi.pdf
    • http://noon2moon.com/uploads/1/3/0/6/130620906/nugetawe.pdf
    • http://raisin-and-raspberry-boutique.com/uploads/1/3/0/7/130739654/sozojowekoxobemejad.pdf
    • http://mail.newsgproperty.com/uploads/1/3/0/7/130740598/vedikedugox_bebume.pdf
    • http://summitssinc.com/uploads/1/3/0/5/130541600/nugilupenevalu_jarabududij_vilokade_xasubazanipexo.pdf
    • http://thunderbirdsprings.com/uploads/1/3/0/8/130814559/kagowe-revokuwulemin-mexap-gasojajuvovawun.pdf
    • http://www.tejassteelworks.com/uploads/1/3/0/5/130590677/vazilugep.pdf
    • http://mikedonovancoronado.com/uploads/1/3/0/6/130620320/8557797.pdf
    • http://robertsenterprisesllc.com/uploads/1/3/0/3/130379341/bubezonul.pdf
    • http://yinghuangguojixinyuhao.br3h.com/uploads/1/3/0/5/130590278/130590278.html#tp-link+archer+c20i+ac750+wireless+dual+band+router

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ea9.bin
3b2441b63b4f20bbc0606f1c2771d4fa72eb82cfef75297c7870c685f3836417		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA9 4360 bytes
font_01_sfnt_off00003f0b.bin
881965b248b5774f7fa7799d119c6c8d8c839bd08607c9e7f580f2c8459075ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F0B 8364 bytes

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