Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f1acea126602075…

MALICIOUS

PDF

72.0 KB Created: 2021-02-25 10:24:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 8b9607ec60384a5d602713de785fed75 SHA-1: fa108b57f0e7de5811818e6863fa9f052aa2a886 SHA-256: 0f1acea126602075a4943ec3aab45cfd2b3673ae637faadd0ecebcc873ce24dd
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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=wu+tang+american+saga+episode+10+cast PDF link annotation
    • http://minuzin.22web.org/pharmacotherapy_handbook_tenth_edition.pdfIn PDF document text
    • http://nunezuse.iblogger.org/85695882625.pdfIn PDF document text
    • https://cdn.sqhk.co/baruduwege/hcLhh98/frito_lay_sales_management_associate_salary.pdfIn PDF document text
    • https://putusura.weebly.com/uploads/1/3/1/6/131606782/jusalizawidididobili.pdfIn PDF document text
    • https://cdn.sqhk.co/xogovofofi/0VWpT9p/atomos_meaning_spanish.pdfIn PDF document text
    • https://cdn.sqhk.co/nozelenid/chb1iAS/zitukifisumagoxoxojowanun.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481518/normal_5fe047d891f66.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424982/normal_6005f64dc4a6e.pdfIn PDF document text
    • https://xoxekoxezugox.weebly.com/uploads/1/3/0/7/130738790/fobavepojuledapami.pdfIn PDF document text
    • http://nesorus.mywebcommunity.org/81056106918.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467581/normal_600337c6b3392.pdfIn PDF document text
    • https://cdn.sqhk.co/kapimetavis/jNsjgaT/ragdoll_rage_heroes_arena_mod_apk.pdfIn PDF document text
    • http://juligum.22web.org/5438620591.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385021/normal_601a8082a7971.pdfIn PDF document text
    • https://xulavuxedipi.weebly.com/uploads/1/3/4/0/134017657/acea492e33e318.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dd80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD80 5568 bytes
SHA-256: 82a67c7b46aaad73c4da4b02345870f2f753272b0fe9573f08167b0e0b50c838
font_01_sfnt_off0000f06d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF06D 10136 bytes
SHA-256: d501667494fc13b08c2f1629116454fea50781cc87578edf7361ebbd4c5dab8f