Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a8d36962e5270a0…

MALICIOUS

PDF

74.7 KB Created: 2021-03-02 16:57:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 4f213dcad0ab9dffa0195044de7314be SHA-1: 00a2ae85695fe4ef93e7aef35d440d317d7456ac SHA-256: 8a8d36962e5270a03ba1df38adddda01e3331cbf2809683fb0262ef3cfd2ee42
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 pointing to disposable domains, characteristic of a link farm designed to obscure the true destination. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a deceptive search result. ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a phishing or malware distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/wix?keyword=songs+of+the+church+hymnal+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4374199/normal_6004fb0ced146.pdfIn PDF document text
    • https://cdn.sqhk.co/kewawukufiju/hjjhjhf/nike_run_club_vs_strava.pdfIn PDF document text
    • https://cdn.sqhk.co/litonesi/f0Xhiy8/nyc_teachers_union_defund_police.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488817/normal_600f511b356a6.pdfIn PDF document text
    • https://wuzinetasinozud.weebly.com/uploads/1/3/1/6/131606123/4330431.pdfIn PDF document text
    • http://pozufopajosel.mypressonline.com/char_broil_turkey_fryer_accessories.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxowowi/Rgeggig/11413024377.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421460/normal_60216a3fddb05.pdfIn PDF document text
    • http://patajafurep.mywebcommunity.org/namezidipuwagirobikuriz.pdfIn PDF document text
    • https://tiwedipetubed.weebly.com/uploads/1/3/2/8/132816066/peratoxusewitonuzare.pdfIn PDF document text
    • https://nesujuge.weebly.com/uploads/1/3/1/4/131407687/gaduregiro.pdfIn PDF document text
    • http://larebalin.mypressonline.com/the_warrior_diet_food_list.pdfIn PDF document text
    • http://tefitagesev.mypressonline.com/plate_and_frame_heat_exchanger_cost_estimate.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jifisuxevizek.myartsonline.com/what_to_do_to_stay_safe_from_covid.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_off0000e7e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E1 5776 bytes
SHA-256: 1a4ec5a641cdad7b24a4c5a8bceefafb55c07c8e61e6060d55961d4154a5b6ca
font_01_sfnt_off0000fb71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB71 10024 bytes
SHA-256: 41b625fb0dacfd0077e0398c8cfd226fc30d644d1be55ca24fda5ca195d0a287

Open this report in the interactive analyzer, or submit your own file for analysis.