Malicious PDF — malware analysis report

Static analysis result for SHA-256 f563f294ea8a4057…

MALICIOUS

PDF

88.6 KB Created: 2021-05-17 08:10:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d170a692b16647725240576e6cefce42 SHA-1: b5dfe7b9813dab6ec474d362aab6ad937962c6de SHA-256: f563f294ea8a40571a84da29bcebaffbf0dff2f9cf7deaf8f43ab2f0a6786999
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, with one prominent URL suggesting a lure related to scanning photos. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection suggest the document is designed to redirect users to malicious content, likely for phishing or malware distribution.

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://kuzutuzo.ru/strik?utm_term=how+to+scan+photos+with+epson+v550
    • https://cdn.sqhk.co/kivipemo/Dvidgjl/android_nougat_32_bit.pdf
    • http://taribada.22web.org/2008_club_car_precedent_front_end_rebuild_kit.pdf
    • https://cdn.sqhk.co/tamejenonisi/jfHR29K/lexutoditigoxevakurib.pdf
    • https://tepupareta.weebly.com/uploads/1/3/0/8/130814680/tutibivogigodat_nuramanuwunogek_zolazepokofon_vinozoxot.pdf
    • https://zewogamiwivu.weebly.com/uploads/1/3/4/3/134313422/nigejovapo-vikutajimolewu.pdf
    • https://cdn-cms.f-static.net/uploads/4481285/normal_60355f5a11ab9.pdf
    • https://sebimifovuduga.weebly.com/uploads/1/3/5/2/135298708/059cfbc05.pdf
    • http://samemex.22web.org/xugoxukaxabodipumeja.pdf
    • https://cdn-cms.f-static.net/uploads/4411498/normal_6022c049449e5.pdf
    • https://cdn.sqhk.co/gobajejuz/djijboy/street_racing_3d_game_online.pdf
    • https://cdn.sqhk.co/nezazexador/dihqS80/imo_free_video_calls_and_chat_apk_download.pdf
    • https://cdn.sqhk.co/kixepijap/ONiiGje/new_york_times_sunday_magazine_submission_guidelines.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rokalugafujat.rf.gd/learn_spanish_language_book.pdf
    • https://uploads.strikinglycdn.com/files/e6fff1a7-65bf-48bf-a873-ee09e97505e5/81884479483.pdf
    • https://s3.amazonaws.com/tolivajupeku/93351573348.pdf
    • https://uploads.strikinglycdn.com/files/5264fc3e-dd61-49ba-9899-181e0775bf24/les_95_theses_de_luther.pdf
    • https://s3.amazonaws.com/fedufiporara/57972880662.pdf
    • https://uploads.strikinglycdn.com/files/edb8675a-ac6b-426c-8624-0a6798e94b95/vogotazopepa.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://www.danawa.com
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8d1.bin
f4bcfbe3028220c011a168ece017c77db8629ab08d2f9257be6352a6d8ec0d5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D1 17204 bytes
font_01_sfnt_off00011b2a.bin
8c5d6c0ea2a622d22b22d082d23f0b0ddacadf6b0a449900a3b83766a4a44e9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B2A 5272 bytes
font_02_sfnt_off00012d37.bin
5c3c98c0a01cbf83d28e3e039c5f23ba18313ce098ec80741f73e74627e6fdf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D37 10988 bytes

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