Malicious PDF — malware analysis report

Static analysis result for SHA-256 af626f8946b3ff59…

MALICIOUS

PDF

66.3 KB Created: 2021-02-16 23:00:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 201e1f0931616a62654ebfbb857c4619 SHA-1: 3df88f96353442caa6c7c1fa802b8a219627c35b SHA-256: af626f8946b3ff5915fb26dffadf3baead0e74020967aed4ec6a2aaf721254af
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://baarspo.ru/123?utm_term=harry+potter+funko+pop+advent+calendar+2020+characters+list PDF link annotation
    • https://lurexiji.weebly.com/uploads/1/3/4/5/134594132/6d33b319.pdfIn PDF document text
    • https://wibixebaroz.weebly.com/uploads/1/3/1/8/131856543/tetezo-boreda.pdfIn PDF document text
    • https://cdn.sqhk.co/kapapomabu/cgfgjgd/8950148278.pdfIn PDF document text
    • https://cdn.sqhk.co/seworani/rhbjbhc/65136148676.pdfIn PDF document text
    • https://wutejaguruloz.weebly.com/uploads/1/3/1/8/131871665/pifarurikidini-faninatomez-dexopagawenebu-zinudajo.pdfIn PDF document text
    • https://cdn.sqhk.co/tutabalero/ih4migq/i_m_under_your_spell_song.pdfIn PDF document text
    • https://cdn.sqhk.co/dikozogub/qbogiji/labusebetipe.pdfIn PDF document text
    • https://cdn.sqhk.co/batovafakupo/fnB3SBN/tap_titans_2_cs_build_skill_tree.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/JR9KgiQ/nuwujev.pdfIn PDF document text
    • https://cdn.sqhk.co/litalile/qamgeqH/damazevik.pdfIn PDF document text
    • https://vafumesaz.weebly.com/uploads/1/3/4/5/134589630/jofugu.pdfIn PDF document text
    • https://cdn.sqhk.co/dixufeja/jirhfcJ/egg_inc_wiki_missions.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xuxusemo.epizy.com/86965090111.pdfIn PDF document text
    • http://sejixopur.rf.gd/font_awesome_pro_free.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/mokipuresetubepatizovimif.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/32111845885.pdfIn PDF document text
    • http://zojofat.epizy.com/bahubali_part_1_hd_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/kufavutotuwesi.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_off0000c537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC537 5704 bytes
SHA-256: 17333d652a172a9b28129ba84621d5b192ad6adfb4d21068ca49c4bfed72bb9d
font_01_sfnt_off0000d8b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B0 10200 bytes
SHA-256: 0aeac7f82384b702d3d9093d9fc98d1f625bdc31239317a7f18369984d1ab33e

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