Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7f1b7134a9fe7e2…

MALICIOUS

PDF

73.9 KB Created: 2021-03-11 10:18:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c5785a91f8ab21af07794cd50c8c746c SHA-1: 1cbe0a9bc77192ed8c13c1a1fd0686f0edac4cff SHA-256: e7f1b7134a9fe7e24683771d77d069cd28b5922f8652694b2820a0a2dce29312
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit users by leading them to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/123?utm_term=law+society+gender+pay+gap+reporting
    • https://cdn.sqhk.co/daxerarugak/gjhdKgf/punifewegulu.pdf
    • https://cdn.sqhk.co/remozemot/xlieNtI/kevisofeso.pdf
    • http://tatinupuguwu.22web.org/como_resetar_celular_motorola_xt1792.pdf
    • https://cdn.sqhk.co/figegixo/hggzij3/sad_anime_wallpapers_1080p.pdf
    • https://cdn.sqhk.co/batovafakupo/jhunFih/jigodibaganemeguz.pdf
    • https://cdn.sqhk.co/xidafigutoxa/jgchh8w/steel_bazaar_online.pdf
    • http://filozajerezabi.getenjoyment.net/japanese_vocabulary_list_n5.pdf
    • http://fuxutigox.mypressonline.com/58960990348.pdf
    • https://cdn.sqhk.co/gituridewo/hjcgfxy/65054380259.pdf
    • http://dixojele.22web.org/oster_10_cup_food_processor_wont_turn_on.pdf
    • https://cdn.sqhk.co/jevikepuja/xNc3gfp/forinumezame.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/sixenogafopoj/64662858935.pdf
    • https://uploads.strikinglycdn.com/files/a506691c-8111-47a5-9679-b049f4b503fe/what_can_i_order_at_buffalo_wild_wings_on_keto.pdf
    • https://s3.amazonaws.com/bufipevuril/comma_appositive_worksheet.pdf
    • http://rogomore.myartsonline.com/72224270182.pdf
    • http://makuwuwamev.rf.gd/81003940139.pdf
    • https://s3.amazonaws.com/puretulenuza/8076848429.pdf
    • https://s3.amazonaws.com/nokiva/sumefalifaxuresufu.pdf
    • http://xuvafinuvewabek.epizy.com/cadence_virtuoso_layout.pdf
    • https://uploads.strikinglycdn.com/files/30cc3bb1-8f81-44f1-a1dd-2e49751a6c8f/twilight_3_watch_free_online.pdf
    • http://guxejusoselota.myartsonline.com/82022630842.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_off0000e486.bin
d25119178240471b993cc7a2e99c24d5e748558f850423a301c3c0babc6767d7
pdf-font-stream PDF embedded font (sfnt) at offset 0xE486 5344 bytes
font_01_sfnt_off0000f6df.bin
2d10cd5e18dd7c7ca2c69c304a2311276204d5c4ecfa2178cfd07c7853192911
pdf-font-stream PDF embedded font (sfnt) at offset 0xF6DF 10364 bytes