Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f4d80debc7c1d9e…

MALICIOUS

PDF

72.3 KB Created: 2021-02-24 15:26:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 177690255d18bfb6f4cbdd360765b7e6 SHA-1: c198820cae2a295b769a4fef212309ad5cb9fc52 SHA-256: 6f4d80debc7c1d9eb78325f5bf8224cf7bfcb2ac8c5f19d65bb816c054585115
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://seumenha.ru/award?keyword=how+many+days+paternity+leave+in+us PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365624/normal_6009de4781ef4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411944/normal_5ffe19bcc7734.pdfIn PDF document text
    • https://cdn.sqhk.co/taxeseta/gdifjaS/xofijos.pdfIn PDF document text
    • http://baykamif.space/6139915664ii2it.pdfIn PDF document text
    • http://prognoz-football.club/jafujesuwivudutopuzslvcs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377100/normal_602678621567a.pdfIn PDF document text
    • https://cdn.sqhk.co/lebudawojafi/WojageW/vokajugokov.pdfIn PDF document text
    • http://itasummer.fun/20212203509pipo1.pdfIn PDF document text
    • http://raffle.website/sonic_menu_pricesehhrz.pdfIn PDF document text
    • http://3-bureaureport.info/14501536193zezwd.pdfIn PDF document text
    • http://airet.space/218264159338wqna.pdfIn PDF document text
    • https://cdn.sqhk.co/busoleva/M5yPhjB/jafoxakexabisatevuvu.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/hgc4vjg/word_finder_scrabble_helper.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416810/normal_5fded6911dbcd.pdfIn PDF document text
    • http://xiravudes.22web.org/ryobi_airstrike_not_shooting_nails.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mapulikilep.epizy.com/vejatigubanelo.pdfIn PDF document text
    • http://bedegotix.epizy.com/kakovajiv.pdfIn PDF document text
    • http://duwagisu.epizy.com/dusovepudesopusevuwi.pdfIn PDF document text
    • http://tosodesuvivat.epizy.com/gerunds_and_infinitives_practice_worksheets.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_off0000dda0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDA0 5320 bytes
SHA-256: 01b961dcfa265f4a5f62e36fff77a1b10fc18bbe4596999039a30c6aa672e409
font_01_sfnt_off0000efb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFB2 10660 bytes
SHA-256: 21051f2c38663965b829e11971fb982a150127fa8f3ef8cf8da4389a9c32a281