Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2e367af41299577…

MALICIOUS

PDF

82.5 KB Created: 2021-03-15 01:27:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b037a916ee9351b0e2fef5a7bfdcbe4f SHA-1: 7a74c2257c9ef174f76beba2f046e6a39969f877 SHA-256: c2e367af41299577e93f64ce644bf42c92276ff998b4fdbb03c42ca58ce77787
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a domain associated with malicious activity, as indicated by ClamAV detection and ML classification. The document body, though heavily obfuscated, suggests a lure related to a 'satin camisole pdf pattern', likely a pretext for phishing or malware distribution. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ponafet.ru/award?keyword=satin+camisole+pdf+pattern
    • https://static.s123-cdn-static.com/uploads/4458144/normal_5ff63a3e704fc.pdf
    • http://labiosdewonda.com/dovutorapamkr6ee.pdf
    • https://cdn.sqhk.co/nagotumubo/Njjjhjh/zenuratalikiroxekeji.pdf
    • https://static.s123-cdn-static.com/uploads/4465548/normal_5fc80cca88964.pdf
    • http://itrom.fun/practice_8-3_multiplication_properties_of_exponents_answer_key695nc.pdf
    • http://lesantyqas.online/fevawiwevofildaew.pdf
    • https://cdn-cms.f-static.net/uploads/4454967/normal_60296506af816.pdf
    • https://cdn.sqhk.co/tozegatopaxu/KjihiUp/59381954002.pdf
    • https://cdn-cms.f-static.net/uploads/4366665/normal_6016b34d64403.pdf
    • https://cdn.sqhk.co/gatavazer/abibPvK/wumepot.pdf
    • https://static.s123-cdn-static.com/uploads/4506170/normal_5fcd716ebf067.pdf
    • https://cdn-cms.f-static.net/uploads/4489969/normal_6047f4d305287.pdf
    • https://cdn-cms.f-static.net/uploads/4447434/normal_600ff6005e5e7.pdf
    • https://cdn.sqhk.co/xomorenut/jgFchj7/90555787465.pdf
    • http://copalofa.site/920442475243tv82.pdf
    • http://profapp.pro/lobefasuxonagukedu6pj54.pdf
    • https://cdn.sqhk.co/jotapepikota/jfjfhhj/america_east_basketball_tournament_2020_location.pdf
    • https://static.s123-cdn-static.com/uploads/4465935/normal_5ffdf3d32636b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ad1c0b96-3efe-4565-b6f7-6ae53cbbad57/what_are_the_biblical_qualities_of_a_good_leader.pdf
    • https://s3.amazonaws.com/toguvaju/zukubu.pdf
    • https://uploads.strikinglycdn.com/files/2fe9bf48-301c-46d0-bb61-3dde62a3c116/how_to_do_spin_only_on_samsung_washer.pdf
    • https://s3.amazonaws.com/jazofi/dsquared_shoes_size_guide.pdf
    • https://s3.amazonaws.com/xetasif/judok.pdf
    • https://s3.amazonaws.com/satudifin/94606878461.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_off0001016b.bin
4eca12fa60e44d97b6c085f8f7be3a70384868ce6d9ab8e4d2d35697a15d6cde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1016B 5404 bytes
font_01_sfnt_off000113b3.bin
2b6dca525ad13da554b74cb09a06c2181fdd51ed5c8653a55e36b29571f07381		 pdf-font-stream PDF embedded font (sfnt) at offset 0x113B3 11488 bytes

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