Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc0cf061a345052c…

MALICIOUS

PDF

81.9 KB Created: 2021-03-12 15:35:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: be92bc2716e397a456397c0c8d2bd431 SHA-1: a333ac0e9ec2f1fdd0182d880a4f96e356a75c8d SHA-256: fc0cf061a345052cda43e2b3e4130b6a6959a766547f0f77fd82d7987b01198d
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many pointing to disposable domains and employing UTM parameters, indicative of a link farm or phishing lure. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'ML_NYX_PDF_MALICIOUS' strongly suggest malicious intent. ClamAV detection as 'Pdf.Phishing.Trojan' further confirms this. The document body, though heavily obfuscated, contains references to software and manuals, aligning with common phishing pretexts.

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://lozipotod.ru/strik?utm_term=skyrim+special+edition+skyui+not+loading PDF link annotation
    • http://keborejozupe.22web.org/bitdefender_update_er_high_cpu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402724/normal_601b9a5e72269.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448733/normal_5ffef96e6f4c1.pdfIn PDF document text
    • http://summ-green.fun/what_are_some_easy_topics_to_write_abouth9plq.pdfIn PDF document text
    • http://kvrovk.xyz/single_variable_calculus_7th_edition_solution_manualbaean.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387035/normal_5feb004a4a6df.pdfIn PDF document text
    • http://gramnews.xyz/bhojpuri_video_ganeogo39.pdfIn PDF document text
    • http://wozuwekifebar.iblogger.org/battletech_mechwarrior_ranks.pdfIn PDF document text
    • http://dovamemowiruz.iblogger.org/rakukuz.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://ffb80149-315c-4936-8637-e87477b606fc.filesusr.com/ugd/e7410d_6b932cb44d9241fea1f76fe416094785.pdf?index=trueIn PDF document text
    • https://849cba27-c1c2-4801-a47f-514a08c45c3c.filesusr.com/ugd/7f7a2c_bde3040f6ed944b0b9c610ed8da77287.pdf?index=trueIn PDF document text
    • https://4253c66a-660d-4c83-b31d-f715833d547b.filesusr.com/ugd/d9e9a0_e3bef04ef04e49cb9a086ce69a949c37.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b98c0d3-ee5b-41e7-b78c-c7dc9c423608/does_the_miracle_morning_work.pdfIn PDF document text
    • http://tubujaj.epizy.com/blomberg_dishwasher_manual_reset.pdfIn PDF document text
    • https://89e5ed4a-33eb-42a6-b5f1-9fc07ea1e15b.filesusr.com/ugd/ff68bb_6bfb71b1894d4f17bd3757fc44a75f55.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/015946b9-aa7d-4868-819d-0ca37fa80b8f/diary_of_a_wimpy_kid_double_down_read_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd2ce471-04d4-4ede-b153-6597230537ae/how_to_program_rca_universal_remote_to_toshiba_tv.pdfIn PDF document text
    • http://rodujuvutadaxam.epizy.com/chamberlain_41db002-2_beeping.pdfIn PDF document text
    • https://4f65703b-d4c0-4c9c-9e30-73c8cc83ec5d.filesusr.com/ugd/54fa57_03e5515b9d734ad284c1b8f92bcc4d56.pdf?index=trueIn PDF document text
    • http://nidedos.rf.gd/project_manager_certification_salary.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_off0000f3d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3D6 5544 bytes
SHA-256: b68120a13ea311ab5d37fa39b084db528aae8655f845e7a584dc92cdb6a92c31
font_01_sfnt_off00010695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10695 10784 bytes
SHA-256: 3e59e3ebc11464febd53486ac0f6bc6394e8d85de696cee8c79c6f1be02357b4
font_02_sfnt_off00012b65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B65 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34