Malicious PDF — malware analysis report

Static analysis result for SHA-256 daa0e4ebbab0ee07…

MALICIOUS

PDF

67.2 KB Created: 2021-02-25 17:18:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 4cf2d9afe6bfe39b8e109fb24fad5eb9 SHA-1: d3d9bfe4e87fe21bad19db852ddbb5a5c6200176 SHA-256: daa0e4ebbab0ee07bdc24ab5e03d2ef1d75190853131bce3a88d83ab443cc1d9
126 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://bologen.ru/award?keyword=sansui+lcd+tvs PDF link annotation
    • https://cdn.sqhk.co/toxinize/hF9gd0C/download_game_counter_terror_sniper_shoot_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/xaselavub/hwhgcjb/stick_legend_war_fight_mod_apk_unlimited_money.pdfIn PDF document text
    • http://subonus.ru/gilgamesh_herbert_mason_summary5wrn5.pdfIn PDF document text
    • http://bixaxivajujojar.mypressonline.com/grohe_kitchen_faucet_leaking_at_handle.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461761/normal_5fdfc07726c30.pdfIn PDF document text
    • http://sputnews.com/85915638483d023n.pdfIn PDF document text
    • https://cdn.sqhk.co/bitomasijelo/lhbhdN2/minusenulevemenekozeme.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499622/normal_6002555a091a8.pdfIn PDF document text
    • http://zumarezojupot.iblogger.org/cdg_play_size_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dakafatuvuguviz.atwebpages.com/sagowevijokosokunidi.pdfIn PDF document text
    • http://fokozagizek.rf.gd/rajawonobijebo.pdfIn PDF document text
    • http://mojideje.epizy.com/bcbs_of_michigan_ppo_prior_authorization_form.pdfIn PDF document text
    • http://jezevenakos.myartsonline.com/gutejela.pdfIn PDF document text
    • http://kalogoraretupo.epizy.com/muzavonojubux.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_off0000c9e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9E2 5000 bytes
SHA-256: 19b0848316dea0485e0667f09040f95ecebf36a20c0aa8981f2456ba3ad27c3b
font_01_sfnt_off0000dafa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAFA 11376 bytes
SHA-256: 5453738d7a82c09e3070c6a5a9e882faf8e9b02c616cc4557168f00f49f4c4b9