Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6094539489f652f…

MALICIOUS

PDF

76.1 KB Created: 2021-03-25 14:58:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e2ea463936f94a19ff40d76e9811d78c SHA-1: 66f1e77b65ca5a719667cb227044905b5c34e837 SHA-256: c6094539489f652f1a59d262eaf7e75c8e7b7c3c4785dac6c328f2d32ab39f9c
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous external URLs pointing to various websites, with one notable URL being https://fokemale.ru/wix?keyword=star+citizen+player+guide. The presence of a large number of links on disposable hosting suggests an attempt to manipulate search engine results or distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=star+citizen+player+guide PDF link annotation
    • https://xabomitutopimo.weebly.com/uploads/1/3/5/9/135961599/3930968.pdfIn PDF document text
    • http://boriroxoxejava.mypressonline.com/advanced_ecg_boards_and_beyond_free_download.pdfIn PDF document text
    • https://bidegibi.weebly.com/uploads/1/3/4/4/134476665/fea8f6e9.pdfIn PDF document text
    • http://gagogepatajebe.medianewsonline.com/antibiotic_prophylaxis_and_recurrent_urinary_tract_infection_in_children.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465930/normal_604b31f290fa8.pdfIn PDF document text
    • http://itactical.xyz/bupibiwobijewazuzow1w95z.pdfIn PDF document text
    • http://trujillostacoshop.com/e_myth_contractor6tgz5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456712/normal_605afc1300f71.pdfIn PDF document text
    • http://doordash.link/kokogorigawoxogasipe2xux.pdfIn PDF document text
    • http://lnstgramhelpcopyright.com/first_alert_carbon_monoxide_alarm_beeping_every_minutegxenw.pdfIn PDF document text
    • http://lumobumekola.getenjoyment.net/2013_subaru_impreza_wrx_engine_name.pdfIn PDF document text
    • http://napodosawukezob.getenjoyment.net/nusisewivipokok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411714/normal_604362f73d6a0.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/04180eda-38e9-44b1-88a0-df456a025aa9/94615087643.pdfIn PDF document text
    • https://d5bea983-5bca-41ba-aae6-6b688785cc77.filesusr.com/ugd/9ec29b_2ded41bd335741eb8e57d3af864e1fc5.pdf?index=trueIn PDF document text
    • https://11f44e1d-c86f-4be6-baa1-90970e7c24f5.filesusr.com/ugd/a298ce_d4cea0b0a15342c49b2cbfee2ffa62e4.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/90e9c6d8-b445-439c-b494-71d0fbab2827/rin_tin_tin_dog_movie.pdfIn PDF document text
    • https://144ece88-722e-4d59-a9d1-ae16887514c2.filesusr.com/ugd/48b17f_ecced86a17304c07a574162d01098afc.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e3b7217-527c-49fa-96f2-fc8094efd677/what_are_the_5_different_types_of_textiles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6f56a36-14c9-40cd-be6f-e660418cc756/58878241693.pdfIn PDF document text
    • https://6d4a8fb0-9a8a-4850-8aa1-2b5706121c9a.filesusr.com/ugd/ff2e72_a1c1715abd524a659f917fc5e0cec5ca.pdf?index=trueIn PDF document text
    • http://naxepedawizozet.onlinewebshop.net/jowagutonoserubovoto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6260f46-95b6-4b90-8afa-d938b9e74aee/suvenofekide.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_off0000eac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAC9 5316 bytes
SHA-256: d7e7f13672719f68400004406c134a22ec90e2226c9c74bedb7136d301e12ca1
font_01_sfnt_off0000fcfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCFE 11160 bytes
SHA-256: 65f29694531f28dc5dc5e8e84b092ebfbae85279b46061eb3e47a3d67c082b34