Malicious PDF — malware analysis report

Static analysis result for SHA-256 25068e7f2ff8e529…

MALICIOUS

PDF

73.1 KB Created: 2021-02-24 09:46:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 361b76200cf0e4706c7161c266f79d3c SHA-1: 44cd4e45840b167da0331ed3d7b7aca899a9b66c SHA-256: 25068e7f2ff8e529f17e04abe3903777f6bb4a1aae0265800dd7f0cb7959e8d2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://druttle.ru/wix?keyword=potato+catalase+enzyme+lab+answer+key PDF link annotation
    • https://cdn.sqhk.co/kawonidoza/ih1OjfB/red_ball_world_of_tanks.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416798/normal_600d5d4fd88e9.pdfIn PDF document text
    • http://airet.space/96748310872l6su0.pdfIn PDF document text
    • http://tozufokoxogo.22web.org/2120115365.pdfIn PDF document text
    • http://merishwheelrecords.com/flyer_templates_ms_worde6q97.pdfIn PDF document text
    • https://cdn.sqhk.co/jolodovi/iUCgcv6/gifegasip.pdfIn PDF document text
    • https://cdn.sqhk.co/pugipepa/bTYVBjg/rifaremogin.pdfIn PDF document text
    • http://ver-alex.website/transport_fever_linienbenutzungdk8jx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498997/normal_6007aeebd29cb.pdfIn PDF document text
    • http://help-copyrightviolationhelpcenter.com/is_barska_a_good_safekmlhr.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvupalib/lbgeifY/cream_cake_ideas.pdfIn PDF document text
    • https://cdn.sqhk.co/gebunemif/hfgdC46/23163323751.pdfIn PDF document text
    • http://autoport76.online/qt_prolongation_treatment_guidelines9w6bk.pdfIn PDF document text
    • http://regse.website/beer_pong_ball_stuck_between_cups6ls0e.pdfIn PDF document text
    • http://amorexpo.com/running_warehouse_customer_service280zo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://namutogenasokab.epizy.com/kuginajupenevuna.pdfIn PDF document text
    • http://wavedada.epizy.com/pay_it_forward_movie_hd.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_off0000e1e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1E6 5392 bytes
SHA-256: 508903451ceb4e262f7bb3155cff9617f3f1225deee1b31c365f426a30d5926c
font_01_sfnt_off0000f448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF448 10164 bytes
SHA-256: 67b1408fd3c56800d4f29507241816e33f867e7ffcd8b7648417691c0e0497f9