Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc11fe3aed6075f0…

MALICIOUS

PDF

85.7 KB Created: 2021-03-31 20:27:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 74b34d1f470e81ed92468d99660cbe1e SHA-1: d73256f1a49ffb1460a83b7ef55312323f10124f SHA-256: cc11fe3aed6075f04c9073295af5cd3958008d241d1b6828a88ea8a3b5ba4b5f
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains multiple embedded URLs, with a primary focus on directing the user to 'fokemale.ru'. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document is designed to host numerous links on disposable hosting, suggesting a phishing or malicious redirection scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://fokemale.ru/123?utm_term=agt+2019+finalist+performances PDF link annotation
    • https://cdn.sqhk.co/goxejake/heihahh/kututisefagew.pdfIn PDF document text
    • https://cdn.sqhk.co/zafupusapun/UFXjcji/99682539213.pdfIn PDF document text
    • https://cdn.sqhk.co/zatovafer/UKjjYM1/fall_guys_guide_ultimate_royale_game.pdfIn PDF document text
    • http://rajukilodagoje.mygamesonline.org/wanepame.pdfIn PDF document text
    • http://sujiwajarow.22web.org/72043098886.pdfIn PDF document text
    • http://vetobiz.sportsontheweb.net/les_aliments_riches_en_calcium.pdfIn PDF document text
    • http://wedidizelajat.mypressonline.com/energizer_universal_battery_charger_australia.pdfIn PDF document text
    • http://jenewazajasazu.getenjoyment.net/atem_software_control_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465006/normal_5fd1458831692.pdfIn PDF document text
    • https://cdn.sqhk.co/ledodatefu/cnLhjud/durga_saptashati_lyrics_in_sanskrit.pdfIn PDF document text
    • http://lomigakorak.getenjoyment.net/basic_french_vocabulary_words_with_meaning.pdfIn PDF document text
    • http://purejup.iblogger.org/breathable_fabric_for_sheets.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423471/normal_604f785c3489e.pdfIn PDF document text
    • https://cdn.sqhk.co/lekabadixi/XAy8ies/live_stream_catholic_mass_melbourne.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bbf6f20-bb8e-415b-99aa-43565453ecae/57816966776.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d005109-e0b7-4ddd-9745-934fce0869d3/popoxolo.pdfIn PDF document text
    • http://mamepekavileput.rf.gd/atal_bihari_vajpayee_poems_free_download.pdfIn PDF document text
    • http://nuworeri.epizy.com/alphanumeric_series_for_ibps_clerk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55bfe542-c132-4013-8e34-f0cc9651c57a/16002018764.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b7795a1-3576-4fbb-a7e1-848595cd8d3e/wowakerulamawomikonom.pdfIn PDF document text
    • http://xikusaduxofi.atwebpages.com/plot_function_in_r.pdfIn PDF document text
    • http://xubudexev.epizy.com/59478638833.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_off00010e7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E7F 5804 bytes
SHA-256: e1cc060b2f63ea05fb99e35754a75e6dc0a1a87c4a076ac13341f29005fd0db5
font_01_sfnt_off00012243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12243 11584 bytes
SHA-256: 0effc24e3d7ea3804dbabbd2ff0124f300e31fd40f2330d71c961a5c7c0b2b4b

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