Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0a4b441b7da0e15…

MALICIOUS

PDF

80.3 KB Created: 2021-05-03 08:27:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a68dcfcfbc7253ad0a178e8f4c65a11b SHA-1: adf0f3f41ac15fc7504eddee93e717de9f9c4904 SHA-256: b0a4b441b7da0e155e0c0a8fb4325ed7dcaa4dfa6387d667fa4cd776cb2b3558
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, which is a common tactic for phishing or malware distribution. The PDF structure and embedded content suggest it's intended to lure the user to a malicious site, likely for credential harvesting or further infection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://xajibur.ru/strik?utm_term=toyota+camry+xle+v6+vs+xse+v6
    • http://ziwusis.getenjoyment.net/gapoda.pdf
    • https://cdn.sqhk.co/fopujetoros/13hqchd/sonny_bono_death_helmet.pdf
    • https://cdn.sqhk.co/bubiwalifeda/ZiaJ37G/6875151653.pdf
    • https://cdn-cms.f-static.net/uploads/4449783/normal_6054bfc400e8a.pdf
    • https://cdn.sqhk.co/nilesatu/geagegh/apple_knight_action_platformer.pdf
    • https://cdn.sqhk.co/ropobemuma/UaAfjdr/english_song_download_pagalworld_2018.pdf
    • https://cdn-cms.f-static.net/uploads/4394073/normal_602f8f4dbd0b6.pdf
    • https://cdn-cms.f-static.net/uploads/4479435/normal_6019f85c1542e.pdf
    • https://cdn-cms.f-static.net/uploads/4469101/normal_60636e95d137e.pdf
    • https://cdn.sqhk.co/gobajejuz/hehdhj9/transfer_station_dump_near_me.pdf
    • https://cdn.sqhk.co/zafilivopupu/ihiAjjP/andmesh_kamaleng_hanya_rindu_free.pdf
    • https://cdn-cms.f-static.net/uploads/4404133/normal_603c2b6a41ce6.pdf
    • http://rigoditibalun.mywebcommunity.org/principles_of_technical_drawing_giesecke.pdf
    • http://vuwefedope.sportsontheweb.net/how_fast_does_a_person_fall_from_100_feet.pdf
    • https://cdn.sqhk.co/juvebuzizej/jmOY8t0/free_games_ringtones_for_mobile.pdf
    • http://vitonidero.medianewsonline.com/parasitologia_humana_neves_10_edio_download.pdf
    • https://cdn.sqhk.co/munuluxel/hiigYRA/pictoword_level_87.pdf
    • http://fisujerekuvij.getenjoyment.net/68303199549.pdf
    • http://lokubakodo.getenjoyment.net/monicion_domingo_xviii_tiempo_ordinario_ciclo_c.pdf
    • https://cdn.sqhk.co/gevopobi/fifjeio/43651110422.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/a98cd3be-e0ce-4d3c-b16f-1cb3f85d62de/dometic_duo_therm_air_conditioner_shroud.pdf
    • http://nosigegu.onlinewebshop.net/how_to_change_the_bag_on_an_oreck_xl.pdf
    • http://fuvuxejuv.myartsonline.com/41265206625.pdf
    • http://sefokirof.onlinewebshop.net/quantitative_risk_management_concepts_techniques_and_tools_revised_edition.pdf
    • https://uploads.strikinglycdn.com/files/3fa3f0a1-f295-4218-92eb-1f1b6fc86474/tukefujo.pdf
    • http://tofujuwo.onlinewebshop.net/audi_q5_2020_owners_manual.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_off0000f8b0.bin
e832e3f6269591de21f2f3ab1768cd2fdcc361291430ab126d8117ddacc4787a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B0 5280 bytes
font_01_sfnt_off00010a9f.bin
84401235f66fc49570216b598e2e81f75897765ea840f11f7cb9b82037602369		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A9F 12492 bytes

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