Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6d0d0bea58b7f0e…

MALICIOUS

PDF

67.4 KB Created: 2021-03-09 02:48:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a071ee74e01c6f091b9b3bac60902ae6 SHA-1: 5b35f2a3f80038231116c473e2700abef1e9f8e7 SHA-256: c6d0d0bea58b7f0e985cb36c8d87ed13c3db46cf6a84d45f659eb67c35bbff9d
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that redirects to a suspicious domain, likely as part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics suggest the document is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/wix?keyword=pit+boss+smoker+recipes
    • https://static.s123-cdn-static.com/uploads/4493920/normal_5fe0f349236e7.pdf
    • https://cdn.sqhk.co/wuvotalek/gjhghfv/snake_puzzle_24_pieces_tank.pdf
    • https://jogijomovap.weebly.com/uploads/1/3/0/9/130969693/famosove_matusewab_supaxuxupikup.pdf
    • http://umniashka.ru/holy_diver_midiuue3i.pdf
    • https://cdn.sqhk.co/sozimelizak/hahemgi/beatbox_looper_loop_stations.pdf
    • https://dowolozudatu.weebly.com/uploads/1/3/4/0/134000293/raxemavijoporonexo.pdf
    • http://souve.me/zombie_survival_guide_moviedk099.pdf
    • https://cdn.sqhk.co/divojimo/gfjaMhf/beach_buggy_blitz_online.pdf
    • http://stassikorskyi.com/70161647887hj6b5.pdf
    • https://cdn-cms.f-static.net/uploads/4467005/normal_5fd63c78a886f.pdf
    • https://zujamabosav.weebly.com/uploads/1/3/4/3/134363941/tedikun-begawiged-pusapu.pdf
    • http://catsism.com/tafsir_ibn_kathir_english_audio_downloadh5jv1.pdf
    • https://cdn.sqhk.co/lupananonutu/iegijaO/affirmative_interrogative_and_negative_forms_exercises.pdf
    • http://leafester.online/young_ma_ooouuu_mp3sjhjg.pdf
    • http://lnstagramcopyrightcenter.com/261166243735hr7d.pdf
    • http://all-system7.work/nopudoqdz4s.pdf
    • https://cdn.sqhk.co/bexuxoxabim/jiakPhe/zusufu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/fba4828c-c5e0-42fd-b815-d43f2d382c6d/how_to_get_mods_for_gta_5_online_ps4.pdf
    • https://uploads.strikinglycdn.com/files/840bbd0b-e49d-4b8d-b42c-db5296d59908/28298567919.pdf
    • https://uploads.strikinglycdn.com/files/ccec0703-b02c-4110-9628-9eba5a10e371/why_wont_my_apple_tv_remote_control_volume.pdf
    • https://uploads.strikinglycdn.com/files/19e651b7-2be1-4325-a0da-4fab7dc9b207/error_missing_ilok_authorization_for_pro_tools_10_mac.pdf
    • https://uploads.strikinglycdn.com/files/ffb1a22b-c809-446a-8489-1b240386af37/ducane_furnace_troubleshooting_codes.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_off0000cd79.bin
ee44c7d997790584549e25cd30a74d391e2683824af49457eb4173f22cc938f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD79 5040 bytes
font_01_sfnt_off0000de89.bin
6f7a5b42bc28b728e14f9c53e09756cb07f5d80419aded6a54a71c1dbf8208da		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE89 9932 bytes

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