Malicious PDF — malware analysis report

Static analysis result for SHA-256 1db276eebbe4a7b0…

MALICIOUS

PDF

69.0 KB Created: 2021-02-20 05:54:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3a6af26cdb34e892db953005a68dfc1e SHA-1: 0eef7d96263ec10a7559ddd512bc2dbd9126a06c SHA-256: 1db276eebbe4a7b0f392a671bb21962361bc5dd32d9ec2dd2f6a2699b44897d4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wix?keyword=manual+land+rover+discovery+2+2004 PDF link annotation
    • https://cdn.sqhk.co/woselukafo/jjjbqhA/1000_followers_on_instagram_buy.pdfIn PDF document text
    • https://xafituku.weebly.com/uploads/1/3/4/8/134863640/06d0fe2.pdfIn PDF document text
    • https://susuravi.weebly.com/uploads/1/3/1/1/131164319/dapopiw_fuseru_kiwakal.pdfIn PDF document text
    • http://ehaberdevlet.com/keduxomugokaxivoxunozolavn48q.pdfIn PDF document text
    • http://job-finder.space/nixenozodet3krd7.pdfIn PDF document text
    • http://anyita.space/rudulalozefexipebodagabvwntv.pdfIn PDF document text
    • https://zuwiwenulabir.weebly.com/uploads/1/3/1/3/131381762/21409742f.pdfIn PDF document text
    • https://cdn.sqhk.co/riragimi/jeUjjrF/build_mode_cheats_sims_4_ps4.pdfIn PDF document text
    • https://cdn.sqhk.co/butituguxur/eiheClo/can_you_change_zelle_phone_number.pdfIn PDF document text
    • https://cdn.sqhk.co/sexipemajim/igl03if/47705551513.pdfIn PDF document text
    • https://cdn.sqhk.co/fexejikexew/jYaghtx/sigewijomi.pdfIn PDF document text
    • https://cdn.sqhk.co/rozesivotix/aY5jjQO/road_trip_films_comedy.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tifoxirekurox.epizy.com/liebesleid_sheet_music_imslp.pdfIn PDF document text
    • http://tupanukaxigazit.epizy.com/64746839960.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_off0000d265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD265 5460 bytes
SHA-256: 63aaf1c92a4ff31c2f3dbd2222261614cb7110d64544dcae014eaa8e7f195762
font_01_sfnt_off0000e524.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE524 9868 bytes
SHA-256: e5f19c6607f5a0e432b81eeb73d180c8521f308297bcdac0e021e7f6f61d808c