Malicious PDF — malware analysis report

Static analysis result for SHA-256 d720711e5d04aa54…

MALICIOUS

PDF

145.3 KB Created: 2021-02-21 19:08:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: fd807653cdcfe8dd5b3d4e39d50b7a5d SHA-1: 8b14789bb558d62cfbc0e6e5e5667ba1d4430170 SHA-256: d720711e5d04aa540b55a018629cc2429b9c92033f0fc49786dd69d7ef759eb1
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://yafferge.ru/strik?utm_term=positive+thinking+exercises+for+adults'. This indicates the document's primary purpose is to lure the user to this malicious site. While no scripts were explicitly extracted, the nature of PDF redirects often involves embedded JavaScript to facilitate the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/strik?utm_term=positive+thinking+exercises+for+adults In PDF document text
    • https://cdn.sqhk.co/buxifuludo/XjahddV/grand_theft_auto_3_xbox_360_controller.pdfIn PDF document text
    • https://cdn.sqhk.co/xolofiwano/hjjighx/fomuminaragizu.pdfIn PDF document text
    • http://werenntaq.online/gukukidup7nfl.pdfIn PDF document text
    • https://cdn.sqhk.co/zetoreli/djajbhg/era_of_celestials_pc_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/nukebomevobe/iHje8vd/stickman_rope_hero_2_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/tixunudixa/03jdCjc/nature_sounds_relaxing_forest_waterfall.pdfIn PDF document text
    • http://podeves.xyz/xomonekelazopabikuclzl9.pdfIn PDF document text
    • https://cdn.sqhk.co/demexadol/8WaWmid/lomomobowimekiwatazeboza.pdfIn PDF document text
    • http://jsexj.fun/watch_twilight_zone_online_free_2019xcumw.pdfIn PDF document text
    • https://cdn.sqhk.co/zekuxemelop/TjbRUie/jafikewijenuguvusezisazu.pdfIn PDF document text
    • https://cdn.sqhk.co/xonudutixova/8KNhjhj/50010566076.pdfIn PDF document text
    • https://cdn.sqhk.co/jotapepikota/09hMih9/how_to_loot_game_cheats.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/ifzhjha/84352609353.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/jiihcib/ships_of_battle_the_pacific_mod_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zixapegof/jbsiiny/red_rosin_paper_roofing_underlayment.pdfIn PDF document text
    • http://temilops.xyz/outdoor_survival_skills_for_youth31f7y.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
    • https://s3.amazonaws.com/liwara/xujegakagovesuxunadebow.pdfIn PDF document text
    • https://s3.amazonaws.com/wegugus/chest_exercise_at_home_video.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/honda_lawn_mower_repair_omaha.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/povafosizagogugugat.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001ed22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1ED22 5356 bytes
SHA-256: e154ef551ddfa0ba7ad51eb83a5d07f84bf221e9a73e842db1afdf0b7c899622
font_01_sfnt_off0001ff54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FF54 13500 bytes
SHA-256: e2971737d9ccbb25c8b6f120869c41899c2e8c67f237edf64aff12dc07b6bc96
font_02_sfnt_off000228d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x228D4 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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