Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f7b791907f3ad40…

MALICIOUS

PDF

71.0 KB Created: 2021-02-15 09:48:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f300c333e1614be9df2108896e4634bd SHA-1: fa4df0d072c884812e551996d73b232bd78330cf SHA-256: 2f7b791907f3ad40b6c8ca5e3f69f4db8c26444f4da00096c9653d3e3a1b9fea
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/wb?keyword=bhai%20bhai%20film%20video%20song PDF link annotation
    • https://cdn.sqhk.co/mitejapeki/idDhecY/romantic_bollywood_songs_2019_mp3.pdfIn PDF document text
    • http://mishabelle.ru/aristotle_political_thought4cdtn.pdfIn PDF document text
    • https://cdn.sqhk.co/tedalome/uXha1gc/love_ringtones_download_mp3_songs.pdfIn PDF document text
    • https://bepizapumi.weebly.com/uploads/1/3/5/3/135349865/jeweteborusami_mulokumenazis_vumim.pdfIn PDF document text
    • https://cdn.sqhk.co/motanunika/qjfgge1/34859058395.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462985/normal_6029e1036736e.pdfIn PDF document text
    • https://noperutepa.weebly.com/uploads/1/3/4/7/134721309/xatesadexigipo.pdfIn PDF document text
    • https://cdn.sqhk.co/varipivokil/hjaifKf/70611536077.pdfIn PDF document text
    • http://lnstagramverifiedbadge-media.com/final_heroes_tier_list9bjbq.pdfIn PDF document text
    • https://povefedonigo.weebly.com/uploads/1/3/1/6/131637150/nogamuwegezip_jureduvebe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gawuvuv.epizy.com/holy_family_coloring_sheet.pdfIn PDF document text
    • http://junedujivoxoz.epizy.com/76461386844.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/72644998297.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/70000504969.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/franoise_sagan_bonjour_tristesse_gratuit.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_off0000d650.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD650 5476 bytes
SHA-256: b729ff4a76812d20e1fd26f71b312bf0d127ffde5e2f520b5162c3b8d5850776
font_01_sfnt_off0000e8d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D9 11336 bytes
SHA-256: 007db373f8014bad6445c87e686eb65bbb35ce9718c09711adcb4532d6dde9bb