Malicious PDF — malware analysis report

Static analysis result for SHA-256 202cca36bc82c2bb…

MALICIOUS

PDF

78.9 KB Created: 2021-02-10 11:21:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 03cd4c7e63fc25187e147c5dbe741022 SHA-1: d87c411986758b1997bd405f1c9f2445575d0396 SHA-256: 202cca36bc82c2bbb96bc904bb321967fc3a2129798fb1f05b8be9ea3fca8e9f
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://leonvi.ru/wb?keyword=bruegger PDF link annotation
    • https://cdn.sqhk.co/jotenitix/rjhTygd/ultrasurf_for_android_update.pdfIn PDF document text
    • https://buwigare.weebly.com/uploads/1/3/5/3/135308802/2c587.pdfIn PDF document text
    • https://cdn.sqhk.co/fezivabuja/icBhfhc/11568680310.pdfIn PDF document text
    • https://cdn.sqhk.co/waxolulum/cQNjcgc/9461289057.pdfIn PDF document text
    • https://cdn.sqhk.co/jemitaso/fOVhiif/modern_sniper_mod_apk_unlimited_money.pdfIn PDF document text
    • https://sojetupeduxagi.weebly.com/uploads/1/3/1/8/131856567/fovuwifusigoj.pdfIn PDF document text
    • http://femokotafi.66ghz.com/latiwarowelekevanepu.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/ifPiigc/hello_neighbor_hide_and_seek_switch_walkthrough.pdfIn PDF document text
    • https://cdn.sqhk.co/tuseliwi/jglEKjg/19092157246.pdfIn PDF document text
    • https://cdn.sqhk.co/fivuwunar/JvgiDgi/easy_pound_cake_recipe_with_cream_cheese.pdfIn PDF document text
    • https://xoselupovogim.weebly.com/uploads/1/3/4/6/134610719/gofazixa_gizitubosesobim_xogemuselobaja.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rajowezurub.rf.gd/nelidosomigavopivoxid.pdfIn PDF document text
    • http://kovoxajinuf.epizy.com/pebusirudateduwep.pdfIn PDF document text
    • https://s3.amazonaws.com/bubisifapagefe/imray_cruising_guide_to_germany_and_denmark.pdfIn PDF document text
    • http://tuwafexom.epizy.com/fefotogudewuzed.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f65c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF65C 5412 bytes
SHA-256: ca2c112572bf566ae4f5d5914893d1500fc44d91db22c2b5ed50977baebbf579
font_01_sfnt_off000108cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108CC 11092 bytes
SHA-256: 968f7018c3d0751cf66787046f4d54def1544f168a7b599b0055281daf59427d