Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee7b0a33a8931085…

MALICIOUS

PDF

73.2 KB Created: 2021-02-27 12:03:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e089cb8c6073469f6704cf8a1a932a93 SHA-1: 490622e828f356ed5bc9fadeb212b51f8f2f918b SHA-256: ee7b0a33a8931085e0fe197aabbcb182adba98421186ac6c6799b582db907aaa
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://mezovuduw.ru/award?keyword=us+army+corps+of+engineers+fort+worth PDF link annotation
    • https://cdn.sqhk.co/jogowijalaro/7jKhdUT/foxovajadinunevokerimup.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/9rMMb6k/10620217589.pdfIn PDF document text
    • https://cdn.sqhk.co/nomitusibop/qpW9ajf/270_two_seventy_us_election_game.pdfIn PDF document text
    • https://nuzoligul.weebly.com/uploads/1/3/3/9/133997434/28d84da476f0f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426407/normal_5feec45bd482f.pdfIn PDF document text
    • https://cdn.sqhk.co/koroxofusino/hcSjcjc/tagujel.pdfIn PDF document text
    • http://replyua.site/tudiwefozizopujosonicvnz7.pdfIn PDF document text
    • http://presalon.xyz/skype_7._41_for_windowspib7g.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzededoz/ifiiCjh/wyvern_5e_mount.pdfIn PDF document text
    • https://cdn.sqhk.co/fazituku/icjdqja/rebudakixotumadabadu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427783/normal_6014c8a397d34.pdfIn PDF document text
    • https://cdn.sqhk.co/keximovib/qdsjjVx/56418776732.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445341/normal_5fd274057f336.pdfIn PDF document text
    • http://e-sparks.ru/sharp_xe-a207_resetcw4yh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/befafuni/lutheran_church_of_the_reformation_washington.pdfIn PDF document text
    • https://s3.amazonaws.com/mutirexa/aerobic_and_anaerobic_bacteria.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD490 5368 bytes
SHA-256: 5bfdfd2ce683bf0eb772df372cf1489e602f816c03c19f633002216be5649789
font_01_sfnt_off0000e6b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6B5 10064 bytes
SHA-256: e254ff056242a437dbc56b571a57d0e1f36b58e21b03762045fa6930287d0c7f
font_02_sfnt_off0001092e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1092E 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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