Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e6eb0158b244efa…

MALICIOUS

PDF

73.9 KB Created: 2021-04-30 21:45:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0a50de6370efc8705dc2e3fa3e276bd6 SHA-1: d0eceea3c5da2d439b8ffafdb2352551f0dc9461 SHA-256: 3e6eb0158b244efaa9e26986d2218ac3e1d6213499b8b93a6d910da9c569778a
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely a phishing lure. The document body, though heavily obfuscated, suggests it is part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://kuzutuzo.ru/strik?utm_term=dark+souls+3+marry+anri+ending
    • http://zuzatew.medianewsonline.com/kosobilutarokakubakopa.pdf
    • https://cdn.sqhk.co/migixurej/e2ojhij/farm_world_roblox_secrets.pdf
    • https://cdn.sqhk.co/liguzalat/g9getha/best_battery_powered_lawn_mower_consumer_reports.pdf
    • http://womenita.fun/9001_iso_2015_quality_manual_pptphe34.pdf
    • https://cdn.sqhk.co/nimuxugemu/egfhg3k/usc_student_murder_charge.pdf
    • https://cdn-cms.f-static.net/uploads/4488558/normal_604f61e061cc0.pdf
    • https://cdn-cms.f-static.net/uploads/4447662/normal_606389e78bd86.pdf
    • https://cdn-cms.f-static.net/uploads/4486033/normal_605dbff6c5ce0.pdf
    • http://totaxusozavu.sportsontheweb.net/macbeth_gcse_notes.pdf
    • https://cdn.sqhk.co/roduxokixuzi/ghfojj2/rakejifedo.pdf
    • https://cdn.sqhk.co/sobexofap/5bhijiu/slots_online_casino_free.pdf
    • https://cdn-cms.f-static.net/uploads/4458390/normal_606128d75f195.pdf
    • https://cdn-cms.f-static.net/uploads/4420037/normal_606a06a6abf30.pdf
    • http://navalny.design/kidopatidawuwemir64dd.pdf
    • https://cdn.sqhk.co/kozuvurop/gyhdifZ/59089766079.pdf
    • http://feldhaus-klinker-plitka.ru/87913629548t8t6x.pdf
    • http://weraka.online/relatajinatxdmt.pdf
    • https://cdn.sqhk.co/mamozinuba/Dhj9heu/samsung_galaxy_core_prime_case_argos.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/sajatesawodiji/71050070830.pdf
    • https://s3.amazonaws.com/pukiza/35459154461.pdf
    • https://s3.amazonaws.com/kovilowab/jefugesokipulaborur.pdf
    • https://s3.amazonaws.com/jukoxisojow/firepower_threat_defense_6._2_configuration_guide.pdf
    • https://s3.amazonaws.com/jesidofefe/dobodini.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_off0000e384.bin
97ddced88df3cfc6fc3aaa47c3b554533f7bdc2e76b4cb111c64dc80d10d896c
pdf-font-stream PDF embedded font (sfnt) at offset 0xE384 5476 bytes
font_01_sfnt_off0000f61c.bin
5aca6b3170e980b70d3e2ba48f64441d7443a935590802d74681bed6e907907e
pdf-font-stream PDF embedded font (sfnt) at offset 0xF61C 10568 bytes