Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ea252cca1a51f80…

MALICIOUS

PDF

67.5 KB Created: 2021-02-21 15:53:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ddc1d5f8b7aa7e664c78bef13aa623ed SHA-1: 4c97bf08e974b189962102fcaaa8d12e68384ae2 SHA-256: 4ea252cca1a51f80849611a40a72a597e7599d46524e36ea87a751de302089d3
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • 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.
  • 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://jottigo.ru/wix?keyword=msd+4l80e+transmission+controller PDF link annotation
    • http://pipvip.ru/alyosha_the_pot91z7h.pdfIn PDF document text
    • https://cdn.sqhk.co/kovixileta/0ggidRG/74815147414.pdfIn PDF document text
    • https://dewapapowirise.weebly.com/uploads/1/3/1/4/131438248/06527f91.pdfIn PDF document text
    • https://cdn.sqhk.co/fegojujor/kfWhijg/17954287160.pdfIn PDF document text
    • http://runolive.com/99619445791bj83l.pdfIn PDF document text
    • http://honey-love.ru/worifujupogoniwikizoxeze34otg.pdfIn PDF document text
    • https://vesabigixovo.weebly.com/uploads/1/3/1/8/131857304/xevamopajimusa-pariseti-bepofarul-vadas.pdfIn PDF document text
    • https://cdn.sqhk.co/fepixuzutol/TBUlddE/vamuxuri.pdfIn PDF document text
    • http://dle-tpl.site/rososafd07pq.pdfIn PDF document text
    • https://cdn.sqhk.co/lolatonuvesa/hnKjjij/12680186576.pdfIn PDF document text
    • http://ita-bio.space/convert_html_doc_to_freee6iq9.pdfIn PDF document text
    • https://cdn.sqhk.co/sativomofij/JjcjhgS/jiwifilerukorewosi.pdfIn PDF document text
    • https://cdn.sqhk.co/pasepizut/mgggEid/65771456510.pdfIn PDF document text
    • http://todayit.pro/ipod_touch_5th_gen_specs6zz5s.pdfIn PDF document text
    • https://cdn.sqhk.co/dijowasedop/ov4KicS/sky_force_2014_mod_apk_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/gasariba/jbDohi0/coin_kingdom_3.pdfIn PDF document text
    • https://cdn.sqhk.co/berirenike/g03bjOq/carpet_cleaner_home_depot_rental_price.pdfIn PDF document text
    • http://shtangye.xyz/lixiwiripetarusk5by.pdfIn PDF document text
    • https://cdn.sqhk.co/wavefekus/jD8haia/mod_apocalipsis_zombie_minecraft_pe.pdfIn PDF document text
    • https://cdn.sqhk.co/rivitovolu/MvMiejd/6319456415.pdfIn PDF document text
    • https://cdn.sqhk.co/sawomunuj/MVzw0he/xilutejukasuduvokak.pdfIn PDF document text
    • https://cdn.sqhk.co/linotepibubi/iAMHhgs/zelozusulizosif.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bde5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDE5 5304 bytes
SHA-256: 4d90a5102a243f42b788d9fa264dafb1c7b2b041d488c7c574b7b69034119fce
font_01_sfnt_off0000cfcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFCC 10052 bytes
SHA-256: 687b77d386b8bafe3e3017d806ede9af9d976c060e0170ba3ac8e758faa9b73b
font_02_sfnt_off0000f24e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF24E 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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