Malicious PDF — malware analysis report

Static analysis result for SHA-256 82d2bf2d707c847e…

MALICIOUS

PDF

40.4 KB Authoring application: Inkscape First seen: 2020-09-24
MD5: d55a203de513339b7bffceb06ec4da98 SHA-1: 826ffb98e0606b7dfeeac5b6e2bba3c40eb26299 SHA-256: 82d2bf2d707c847edadc70e9868bd057451640d8204d9ea0d0a616117fa54219
152 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV and ML classifiers also flagged this file as malicious, specifically identifying it as a phishing or traffic-robot related PDF. The embedded document body text appears to be corrupted or truncated, providing no clear user-facing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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 In PDF document text
    • http://ns2.mitasbakeshop.com/uploads/1/3/0/4/130476703/487b1fde1.pdfIn PDF document text
    • http://strawhatgames.com/uploads/1/3/0/5/130589354/b3ec0f4604f.pdfIn PDF document text
    • http://www.jackmcmahonfilm.com/uploads/1/3/0/4/130489465/ninekifijajugawobot.pdfIn PDF document text
    • http://www.babybuddies.us/uploads/1/3/0/2/130272420/bafanuzaj-giperepa.pdfIn PDF document text
    • http://vergisdigitalmarketing.com/uploads/1/3/0/6/130639267/bijuzumavepo.pdfIn PDF document text
    • http://supertekamerica.com/uploads/1/3/0/6/130639845/fisawepikafakogana.pdfIn PDF document text
    • http://oest.juniortalent.dk/uploads/1/3/0/7/130739204/lanop-zawexog-tozekasir-werelamozo.pdfIn PDF document text
    • http://helpsy.com/uploads/1/3/0/5/130544072/ratunavogiso_welivi.pdfIn PDF document text
    • http://noon2moon.com/uploads/1/3/0/6/130620906/nugetawe.pdfIn PDF document text
    • http://raisin-and-raspberry-boutique.com/uploads/1/3/0/7/130739654/sozojowekoxobemejad.pdfIn PDF document text
    • http://mail.newsgproperty.com/uploads/1/3/0/7/130740598/vedikedugox_bebume.pdfIn PDF document text
    • http://summitssinc.com/uploads/1/3/0/5/130541600/nugilupenevalu_jarabududij_vilokade_xasubazanipexo.pdfIn PDF document text
    • http://thunderbirdsprings.com/uploads/1/3/0/8/130814559/kagowe-revokuwulemin-mexap-gasojajuvovawun.pdfIn PDF document text
    • http://www.tejassteelworks.com/uploads/1/3/0/5/130590677/vazilugep.pdfIn PDF document text
    • http://mikedonovancoronado.com/uploads/1/3/0/6/130620320/8557797.pdfIn PDF document text
    • http://robertsenterprisesllc.com/uploads/1/3/0/3/130379341/bubezonul.pdfIn PDF document text
    • http://yinghuangguojixinyuhao.br3h.com/uploads/1/3/0/5/130590278/130590278.html#tp-link+archer+c20i+ac750+wireless+dual+band+routerIn PDF document text
    • http://www.adobe.com/).NotoIn PDF document text
    • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
    • http://scripts.sil.org/OFLNotoIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA9 4360 bytes
SHA-256: 3b2441b63b4f20bbc0606f1c2771d4fa72eb82cfef75297c7870c685f3836417
font_01_sfnt_off00003f0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F0B 8364 bytes
SHA-256: 881965b248b5774f7fa7799d119c6c8d8c839bd08607c9e7f580f2c8459075ca