Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2ca6bded5c69566…

MALICIOUS

PDF

71.4 KB Created: 2021-03-03 05:11:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ab526df5d90f9de97333f5c0f5f233b6 SHA-1: a6922f87b716ab6a516e7b194f38ebb43c52e6a5 SHA-256: d2ca6bded5c69566418208632b8d695c0f31741b708f8f07a38a37a9ead0b650
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://mezovuduw.ru/wix?keyword=graphing+systems+of+linear+inequalities+worksheet PDF link annotation
    • http://fabulouss.space/64380978995iew7t.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/present_perfect_simple_affirmative_negative_and_interrogative_exercises.pdfIn PDF document text
    • https://lifitexuga.weebly.com/uploads/1/3/4/3/134356919/nuwotuzulosimul_felef_kajirurap.pdfIn PDF document text
    • http://afracheat3.xyz/48203633889w00cc.pdfIn PDF document text
    • https://cdn.sqhk.co/kozuvurop/idhgsmD/free_2_player_online_games_xbox_one.pdfIn PDF document text
    • http://mezajozugabaso.getenjoyment.net/polaris_360_pool_cleaner_hose_assembly.pdfIn PDF document text
    • http://theplafond.xyz/10526148273p26pt.pdfIn PDF document text
    • http://numberoone.xyz/virtua_tennis_challenge_1._3_6_mod_apkopqmg.pdfIn PDF document text
    • https://nogexumojadug.weebly.com/uploads/1/3/4/2/134235638/9c335c9ddb2.pdfIn PDF document text
    • http://puzexijabin.mypressonline.com/93014655053.pdfIn PDF document text
    • https://dizugupixaxagoj.weebly.com/uploads/1/3/4/4/134440249/1599104b37af.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vebusatoro.atwebpages.com/what_is_the_salic_law_of_succession.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_off0000d98e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD98E 5728 bytes
SHA-256: 27d4fd38ff8ebe5ccc2ed1137fd1772bbeb0af957443745c574e89698342e520
font_01_sfnt_off0000ed07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED07 10304 bytes
SHA-256: 22f3008c9d086dadfdc59e2fe9a3b6e6b4ed880b60b994ea79ee552a037cf0ba