Malicious PDF — malware analysis report

Static analysis result for SHA-256 c290ccdf71cab24d…

MALICIOUS

PDF

77.8 KB Created: 2021-02-16 03:42:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 67527cc7a1576afa1462a7328ee53a49 SHA-1: 73dbf5dac77daa7ef24096ebc771155d2ad6f5b4 SHA-256: c290ccdf71cab24d647733f1d31f5d24ab16b8105e504c7454c43dae9c22bffe
186 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains numerous external URIs, including 'https://seumenha.ru/strik?utm_term=aubergine+feta+pasta+bake', which are likely used to redirect users to malicious content or phishing pages. The presence of a large number of links suggests an attempt to obscure the true destination or to generate traffic for SEO manipulation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://seumenha.ru/strik?utm_term=aubergine+feta+pasta+bake PDF link annotation
    • https://cdn.sqhk.co/molipigi/d5Fgdhg/pac_man_world_2_gba_all_bosses.pdfIn PDF document text
    • http://natlab.ru/lucky_draw_tattooc4wov.pdfIn PDF document text
    • https://bawilawuvibowe.weebly.com/uploads/1/3/4/4/134401702/kaxabiroze_bofenefok_fuwolevadobuteg_gumofeboxagiv.pdfIn PDF document text
    • https://cdn.sqhk.co/lasanamemego/ebUghic/crossroads_mall_bellevue_map.pdfIn PDF document text
    • https://jitebemaduk.weebly.com/uploads/1/3/4/6/134692965/fumunirijil-wesijusimajeziv-wigegodu-vuvinaju.pdfIn PDF document text
    • https://cdn.sqhk.co/dorusafe/T2Yp0lr/spinning_guns_rdr2.pdfIn PDF document text
    • https://cdn.sqhk.co/tefazaturar/ggghxjg/fps_gun_shooter_counter_terrorist_shooting_games.pdfIn PDF document text
    • https://cdn.sqhk.co/gatuwaven/ichahZg/72798946961.pdfIn PDF document text
    • http://jopkapopka.online/bimotumiwarorigobermkwl0.pdfIn PDF document text
    • https://cdn.sqhk.co/jirowolad/YLmVTqV/14829901992.pdfIn PDF document text
    • https://cdn.sqhk.co/zisujidixa/ibujgF8/42894323636.pdfIn PDF document text
    • http://mynasert.online/26389614820k6p8f.pdfIn PDF document text
    • http://unreguezff.rest/adobe_flash_player_9._0_free_downloadw4d3j.pdfIn PDF document text
    • https://kefonajivivuz.weebly.com/uploads/1/3/0/7/130776591/bekujevakewu_vunemikovura_natomi.pdfIn PDF document text
    • https://cdn.sqhk.co/kasavakujosi/cPiiBjd/toca_train_apk_on_android_1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460450/normal_60043de31a55e.pdfIn PDF document text
    • https://pukuxenusafo.weebly.com/uploads/1/3/4/7/134711282/benivuvekuma-bexamiditipike-vefitobo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://punolubumima.epizy.com/kipud.pdfIn PDF document text
    • http://muzoxed.rf.gd/jarazoxavimusa.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d8b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B9 5004 bytes
SHA-256: 3275d0b028ed27b99ce3ae1383fd3fe385ddfb36547c9b67defd5f2351a251b1
font_01_sfnt_off0000e9bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9BF 1808 bytes
SHA-256: a444abf08eeba2dfd3ecae1b961ba3fc08c40da3461083470820bb3369e8c61e
font_02_sfnt_off0000f2a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A1 11916 bytes
SHA-256: cfa1a65f9eeec2446df6382ffce87d9195ec5fcb443f1426f7e2e3d1e8932888
font_03_sfnt_off00011a44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A44 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378