Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cf922b0a8be8bac…

MALICIOUS

PDF

93.7 KB Created: 2021-03-08 06:29:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8103cb1eafc8706a3691d55ad232b472 SHA-1: d2dfe448f7058e707e5eda1799ffc58e71e1dc3d SHA-256: 7cf922b0a8be8bac5ea1c6afcfe0691c90dc737a20f6904ea9e07e836d91231b
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily corrupted, suggests a lure related to game builds, which is a common tactic for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=dragon+age+origins+best+rogue+build
    • http://fexabudobix.getenjoyment.net/5_day_keto_egg_fast_meal_plan.pdf
    • https://cdn.sqhk.co/monasomeb/hbnhhb8/fuwopubigizobafemasuf.pdf
    • https://static.s123-cdn-static.com/uploads/4461767/normal_5fdd7f452d5cb.pdf
    • http://kudusakepupa.sportsontheweb.net/esquema_de_los_medios_de_comunicacion_masiva_y_sus_caracteristicas.pdf
    • https://cdn-cms.f-static.net/uploads/4458412/normal_60112add7c6d1.pdf
    • https://cdn.sqhk.co/naziwixolagu/zjazLji/zagitosawadusogo.pdf
    • http://xivusolokedujes.22web.org/chammak_chandra_performance_latest.pdf
    • https://cdn.sqhk.co/kafekogi/Rgda6hf/7_wonders_duel_agora_rules.pdf
    • https://cdn-cms.f-static.net/uploads/4450257/normal_603ffd9c4d286.pdf
    • https://cdn-cms.f-static.net/uploads/4461201/normal_600a05d1aba95.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ac7f84e6-fde6-41da-81e1-af07254abd15/vishnu_sahasranamam_lyrics_in_telugu_with_meaning.pdf
    • https://s3.amazonaws.com/xakajoziwibi/69052342119.pdf
    • https://uploads.strikinglycdn.com/files/5eeb1ded-807b-45d7-a811-a1b2732e5ea4/how_many_players_can_play_joking_hazard.pdf
    • https://uploads.strikinglycdn.com/files/e13d83f2-f73f-4206-9fe2-30641c766e98/how_do_you_write_a_restaurant_review_example.pdf
    • http://wafogaz.rf.gd/87262987967.pdf
    • https://uploads.strikinglycdn.com/files/ce011dea-f874-4381-92cb-fd7545ea1482/mododi.pdf
    • http://vomoguzidazufi.rf.gd/64227398128.pdf
    • https://s3.amazonaws.com/xeroguru/amway_diamond_celebration_music.pdf
    • https://uploads.strikinglycdn.com/files/155de178-b0b1-4302-9ad1-dcd7da6d0a85/23609399978.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013333.bin
962f8f71eed95517283e962c5fdf1a7b6cad41d96f63468ed468c73dbb98718e
pdf-font-stream PDF embedded font (sfnt) at offset 0x13333 5132 bytes
font_01_sfnt_off000144b3.bin
9cf3d7646bb9755e67446dfba0635448ac9a2d979c22f6d2efaf9c1e7f729bd6
pdf-font-stream PDF embedded font (sfnt) at offset 0x144B3 10888 bytes