Malicious PDF — malware analysis report

Static analysis result for SHA-256 c64107522675f8b4…

MALICIOUS

PDF

89.9 KB Created: 2021-03-25 10:35:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: aa9fb2c49fafe8eace8995ed70691a37 SHA-1: d199781e08f4c26763c2750d99a7fe676a7bbc81 SHA-256: c64107522675f8b47e415e443ecbd87f665f856cf3aac6415672c1f5c9d4e23e
186 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified by the PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics, pointing to various domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded URLs and the nature of the link farm suggest an attempt to lure users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://xezojetit.ru/award?keyword=candy+pdf+crop PDF link annotation
    • http://devlp.club/lights_out_2011_s018jyr9.pdfIn PDF document text
    • https://boviseweduxiraz.weebly.com/uploads/1/3/0/7/130776594/032ab66e7643de.pdfIn PDF document text
    • http://vovpomnim.ru/minions_illumination_full_movie_free5qy64.pdfIn PDF document text
    • http://shopeuro.pro/18030962177xn6uc.pdfIn PDF document text
    • https://s3.amazonaws.com/gapuruxumeg/rijadezezo.pdfIn PDF document text
    • https://zexawowa.weebly.com/uploads/1/3/6/0/136081798/5251330.pdfIn PDF document text
    • https://sokijaxojo.weebly.com/uploads/1/3/5/4/135400829/ce75279903cd.pdfIn PDF document text
    • https://vazewelekataba.weebly.com/uploads/1/3/1/6/131606588/sejunodo_bipiwo_vipas_tokofel.pdfIn PDF document text
    • https://toxujubew.weebly.com/uploads/1/3/1/4/131437446/7ce35ad978d26d3.pdfIn PDF document text
    • https://vizegibog.weebly.com/uploads/1/3/4/4/134458583/6597582.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/9145379496.pdfIn PDF document text
    • http://masalev.ru/700026272339ih98.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://d4bcd744-2348-4fe3-9006-05b2fcbd3cbd.filesusr.com/ugd/704566_df9094ee45cc43fc96693cacc4f53b44.pdf?index=trueIn PDF document text
    • https://e49cd12a-7e53-4a25-9f98-ae37b5ff2e44.filesusr.com/ugd/35dc59_f6f0cd6245de49508ba3c8700d6274f5.pdf?index=trueIn PDF document text
    • https://438c9214-13ba-44a2-8469-a4c97ff43377.filesusr.com/ugd/5d46a0_45ccdea4ea754d7b956a0f9e003eff65.pdf?index=trueIn PDF document text
    • https://899154e9-876a-4ab4-94d5-c8ef2aed10f2.filesusr.com/ugd/dcf9ad_4a597be729474775b02904631e96f586.pdf?index=trueIn PDF document text
    • https://b5f62e6e-b620-4b0e-90dd-fa81fc7fb5c2.filesusr.com/ugd/18d815_6a62505c4cbb4bafa3f82d2a474b0cdb.pdf?index=trueIn PDF document text
    • https://0c3b2bb2-3ac9-4e0e-a0b2-530a831cdf0d.filesusr.com/ugd/23193f_4c7fd2099b614a7880bc1e54656c5e9f.pdf?index=trueIn PDF document text
    • https://765a5d72-5774-4a4d-a421-5c90307110ba.filesusr.com/ugd/f2a868_917b281489524506b3819f893bc3d7f8.pdf?index=trueIn PDF document text
    • https://fa202315-5cd5-4006-9a99-7c5d4406650e.filesusr.com/ugd/61804c_ea86f60527e24494b8ac83db916bf685.pdf?index=trueIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 7

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED64 3612 bytes
SHA-256: 61e961092dcf782ed0c52bbdbb6cc9850dbdff48801ffdf2ef03f8dab91af37e
font_01_sfnt_off0000fa4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA4C 4948 bytes
SHA-256: 89c659236b0fa13f94e9c2c67f94e574f593b05eee9ac00b1fe26cf20b079285
font_02_sfnt_off00010b3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B3C 22408 bytes
SHA-256: ae059c3d186e3a807348f6d87e65baf9a0d2dbc9db20b3b0195a3a3d1caa01ca
font_03_sfnt_off00013e0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E0C 17988 bytes
SHA-256: fa552623c7d9a86c5ff2ac5d13d0cf4e4a1b2360572083c3bd215055b51a15c2

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