Malicious PDF — malware analysis report

Static analysis result for SHA-256 abc6ff358a922634…

MALICIOUS

PDF

78.0 KB Created: 2021-02-01 07:48:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 2c602004c39a4c3abdedaf4d3c3fd355 SHA-1: 5b7317203f3a160f1788a6330e247ea54e5cc17b SHA-256: abc6ff358a9226347f4f46ab2b42875e11f4ba99976b47dfecac2242276c9a28
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://seumenha.ru/aws?utm_term=company+analysis+report+format PDF link annotation
    • https://cdn.sqhk.co/kusewupudin/0PLQu4a/clue_detective_notes_printable.pdfIn PDF document text
    • http://piwifeg.22web.org/plant_ecology_book.pdfIn PDF document text
    • https://wakukaxowemaba.weebly.com/uploads/1/3/5/3/135303752/wixonanemejujazo.pdfIn PDF document text
    • https://cdn.sqhk.co/mekaxosur/bVrjiPN/41538652211.pdfIn PDF document text
    • https://cdn.sqhk.co/sunalikefazo/hhgg8ZI/large_cat_condo_cage.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426075/normal_6005127d4f03a.pdfIn PDF document text
    • https://sezokifor.weebly.com/uploads/1/3/4/5/134596047/a31ec957.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462066/normal_5ff7bf75b5882.pdfIn PDF document text
    • https://cdn.sqhk.co/dukosisevu/bhcifig/direzoruwigokivim.pdfIn PDF document text
    • https://tepidupelagoxu.weebly.com/uploads/1/3/4/4/134472529/vepurebibakemu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366005/normal_5ff4bdb09c8d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484632/normal_5fff515adf305.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/jfhehh5/kopalamovevaro.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zukewanika.rf.gd/admanager_plus_6._0_crack.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/ascap_performance_fees.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_off0000f5ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5EA 5052 bytes
SHA-256: d62df4145dfce986141daaae39d00914c0b5b8595870a328ba400aa64169b05a
font_01_sfnt_off00010703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10703 10720 bytes
SHA-256: 693355fa0854ea7203026ae13c33906fe6205d3108565ca25a830243d112a62c