Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ea37124137e8f01…

MALICIOUS

PDF

78.5 KB Created: 2021-05-15 08:09:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff64ae300be1abb7f463e9b528e833c2 SHA-1: 5a1c39936160021b564cc5c7988083b530f409e9 SHA-256: 1ea37124137e8f01a32ab0f2a8d1cc9d0a4ec52c5ec40883ab6ccfc03a7349de
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that leads to a suspicious domain, identified by heuristics as a potential phishing or malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of an external URI and the overall classification suggest the document is designed to redirect users to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://jumiwimov.ru/strik?utm_term=2006+honda+rancher+350+tire+size
    • http://dobomasinuraz.iblogger.org/aha_2018_lipid_guidelines_ppt.pdf
    • https://cdn.sqhk.co/rigalazo/hqijRCj/cheat_engine_new_version_2019.pdf
    • http://jonipifenukiz.mygamesonline.org/pevatonud.pdf
    • https://cdn.sqhk.co/xegigujatefa/iaq22bF/virtual_race_car_engineer_2018_apk.pdf
    • https://cdn.sqhk.co/jenotonolo/oAExWjg/hip_hop_and_rap_music_history.pdf
    • https://cdn.sqhk.co/naruxibe/NijTjfi/helicopter_rides_grand_canyon_village.pdf
    • http://nodefiw.medianewsonline.com/seismic_isolation_for_designers_and_structural_engineers.pdf
    • http://korirojasutito.22web.org/praise_and_worship_songbook_with_chords.pdf
    • http://padojuputiki.iblogger.org/cambridge_pet_reading_part_5.pdf
    • http://lunagogafoxoj.sportsontheweb.net/ninja_blender_costco_review.pdf
    • http://kemesigejafine.iblogger.org/antenatal_care_guidelines.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://diwavubodinaroj.myartsonline.com/after_anna_todd_read_online_free.pdf
    • https://af8e4364-7f8a-45ec-af3e-d69da1c27fbb.filesusr.com/ugd/12c36c_54474aa64a11420eaf1ee6e7f4084e71.pdf?index=true
    • http://tuwogujizurez.epizy.com/63942419652.pdf
    • http://kobuxotaregudes.rf.gd/barbie_salon_games_apk_free.pdf
    • http://malukofe.rf.gd/6322954429.pdf
    • https://f1cb2ec4-a82d-4768-8a06-5236a2db220e.filesusr.com/ugd/a2e20a_30d3afca9d3244fd9edadc30f33c00c8.pdf?index=true
    • https://a84030a7-2e48-4039-807a-383e2b7216cc.filesusr.com/ugd/c5d40f_ce433e97a613454fa721b749193a651a.pdf?index=true
    • https://48cc712b-de5e-493e-a198-f8962849e22b.filesusr.com/ugd/d2751c_72324c5f41c44248b562587d39faebb3.pdf?index=true
    • http://ramedilasu.rf.gd/viruwivedadakuwuk.pdf
    • https://e44de090-c64a-4a0f-b555-2784aa0ac37b.filesusr.com/ugd/41d583_2cf2813b03d9431ea85bb62288236a25.pdf?index=true
    • http://vibotiguxux.rf.gd/aplikasi_titrasi_argentometri.pdf
    • http://belibivizonojo.myartsonline.com/zovaret.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_off0000f2a3.bin
5ffde2fe6640dbef7d1e8dae4b9c4af1ff37353b3ed5479a5ea9f563a745f2c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A3 5664 bytes
font_01_sfnt_off000105e8.bin
68347cc003aaa81dc7d206cb713cb3d75747e55162ef7445d7453eef98a27500		 pdf-font-stream PDF embedded font (sfnt) at offset 0x105E8 11420 bytes

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