Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fafa5072c795319…

MALICIOUS

PDF

82.9 KB Created: 2021-05-01 16:13:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 8c3fc33bbb90571e8e24ae38856f9840 SHA-1: 214da478bc5cd25de3e598386d3e3e2f14bd6a46 SHA-256: 0fafa5072c79531931296fe92fe3120a6882e58a69bca26c899d98308482fb9c
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, with one specifically pointing to a suspicious domain ('fokemale.ru') that is likely part of a phishing or redirection scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were extracted, the extensive use of external links and the heuristic findings suggest the document's primary purpose is to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://fokemale.ru/strik?utm_term=frank+hammond+deliverance+youtube PDF link annotation
    • http://jodazok.22web.org/cartesian_philosophy.pdfIn PDF document text
    • https://wifevotus.weebly.com/uploads/1/3/4/8/134897576/8be70a55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379960/normal_603f4143322a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404287/normal_5fe652353de24.pdfIn PDF document text
    • https://bazubipevudupu.weebly.com/uploads/1/3/4/8/134876407/giwapatufedowibebul.pdfIn PDF document text
    • https://kumuxulunewun.weebly.com/uploads/1/3/0/7/130775174/998244.pdfIn PDF document text
    • https://zeteleginogegop.weebly.com/uploads/1/3/4/5/134526156/908476c.pdfIn PDF document text
    • http://merutakozuxonu.22web.org/65091533401.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382621/normal_6052245436e68.pdfIn PDF document text
    • https://sodujamewo.weebly.com/uploads/1/3/4/7/134750465/sofafonilo.pdfIn PDF document text
    • http://limevekobo.iblogger.org/bittorrent_movies_free_2018.pdfIn PDF document text
    • http://LHBCONLINE.comIn PDF document text
    • http://lakehamiltonbibIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gesovupa.epizy.com/gizojusegekitifu.pdfIn PDF document text
    • http://xekinawofer.epizy.com/the_alienist_season_2_episode_1_imdb.pdfIn PDF document text
    • http://nanaxidimidi.atwebpages.com/vapupabepeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c47a886e-db77-47d2-a6be-cd0f63965599/html_templates_for_college_website_free_download.pdfIn PDF document text
    • http://muvamubas.atwebpages.com/the_story_of_my_life_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d130fb0-1850-4a92-8312-8b007cc0dc0b/67092210481.pdfIn PDF document text
    • http://dinixebun.epizy.com/aqa_a_level_chemistry_notes.pdfIn PDF document text
    • http://gobonelore.epizy.com/21868767587.pdfIn PDF document text
    • http://luruloligof.rf.gd/budesonide_formoterol_200_6_mcg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/850a4d43-4b0e-453c-a44c-dea7d5c3da66/which_prophet_performed_the_most_miracles_in_the_bible.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000107a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107A4 5320 bytes
SHA-256: 31b36b0b2454f5402ba8952d0f0ba92705d8ff069ba144a598bfcc9e72a888dc
font_01_sfnt_off000119a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119A2 10900 bytes
SHA-256: 60fe1c2482dad7a599cd9a624d45afb9e0ed10c96ea0784928d3e093e4ee8a93

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