Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b0b7ad1d394656d…

MALICIOUS

PDF

76.2 KB Created: 2020-11-10 06:43:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5e99ac97eb3ffb64754cad074bd510d8 SHA-1: 1759f39136e3c758f54b1a1b3acea93270f37491 SHA-256: 5b0b7ad1d394656dbf069b4ef8d30d49c0aa94ceeaa318985df3b165fac9086e
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, forming a link farm, and is flagged by ClamAV as a phishing trojan. The embedded content, though heavily obfuscated, suggests an attempt to mimic search results for popular media, likely to redirect users to malicious sites. The presence of multiple PDF links and the ML classifier's high confidence further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafficel.ru/strik?keyword=black+panther+full+123+movies PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369307/normal_5f89a8b65ebc7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370062/normal_5f9aa154db3dd.pdfIn PDF document text
    • https://gewusepisegetu.weebly.com/uploads/1/3/4/4/134492884/4892d4908.pdfIn PDF document text
    • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/efe324d83e9.pdfIn PDF document text
    • https://gekilatati.weebly.com/uploads/1/3/4/3/134378061/653e63580e8d8a.pdfIn PDF document text
    • https://vafumigoku.weebly.com/uploads/1/3/1/3/131384305/27ea7b6f6e4b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371240/normal_5f9ea185de3b7.pdfIn PDF document text
    • https://poxobavu.weebly.com/uploads/1/3/1/4/131453713/deselexubuzan.pdfIn PDF document text
    • https://nosuxiseliv.weebly.com/uploads/1/3/4/5/134578333/juxotubojenidiw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369166/normal_5f8e17b673ce9.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/6f0a1d37-fcd2-4f94-8899-c5a0aba45780/live_photo_porn.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/665cb3c5-ba8f-476e-a048-157d62d8aec5/dejawen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40bdc61c-b436-452d-92dd-3b64f2f1014a/minakuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1ad7e88-c642-4102-840a-a5081b549018/hitfilm_4_express_system_requirements.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80a47f0a-35f0-4728-8774-285e319123c8/65567105372.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d517.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD517 5776 bytes
SHA-256: 9ea14f5888d05a833a53a821736cbcb34b9f4cb3e2e3d6188f8023163a22e3a1
font_01_sfnt_off0000e8aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8AA 11236 bytes
SHA-256: 7f8b7514c039d59849ab9f13a5d497bbb5e00f007d24a35f80f9ca3aa209f767
font_02_sfnt_off00010edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EDB 16064 bytes
SHA-256: 378ba5569bb666bbcf62f6b10ce7b1b17e3ec70dff13df96b0486da8cd924b4e