Malicious PDF — malware analysis report

Static analysis result for SHA-256 2959c49a1008bddf…

MALICIOUS

PDF

73.4 KB Created: 2021-03-15 18:57:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: aa34ee7563a4463b321f7576396e0947 SHA-1: b366d2a6aa2d980327e4c201806ebf7592f25700 SHA-256: 2959c49a1008bddff955e55d7b18a5d8dbccc5893d06e1f2e4f2ef3e4918cbce
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'xezojetit.ru/award', which is likely the primary lure. The document body, though heavily obfuscated, contains text related to 'print september 2020 calendar pdf', suggesting a pretext for the malicious link. No scripts were extracted, but the presence of an external URI in a malicious PDF strongly indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://xezojetit.ru/award?keyword=print+september+2020+calendar+pdf PDF link annotation
    • http://durasazi.iblogger.org/bala_bala_video_song_akshay_kumar.pdfIn PDF document text
    • http://sodahq.club/kuwudotomobozesawakuxos98tc4.pdfIn PDF document text
    • https://cdn.sqhk.co/bugabowozi/jrJji6K/monkey_knife_fight_review.pdfIn PDF document text
    • http://tur8osale.site/able_to_extract_professionalmazml.pdfIn PDF document text
    • http://hotloveme.online/jufosonavewewkt20h.pdfIn PDF document text
    • https://cdn.sqhk.co/vakanaju/Rihvrje/41064912012.pdfIn PDF document text
    • https://cdn.sqhk.co/fosasukenum/4jyjjfm/babies_their_wonderful_world.pdfIn PDF document text
    • http://toolsbestpricemicrometer.site/hbr_guide_to_getting_the_right_workyip6u.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nabifovu/4159851190.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/how_many_dantes_inferno_games_are_there.pdfIn PDF document text
    • https://1ee34b3e-bfcb-4e25-b227-79ffd44eef10.filesusr.com/ugd/9d5096_a9fd6528b2544bb5bd27afe3f49b931c.pdf?index=trueIn PDF document text
    • https://ed36ca5d-e6e9-4caf-8bbb-3a8af5cfee16.filesusr.com/ugd/971556_f5c8cd0cee994f15802ad373798495ac.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/hp_z400_price.pdfIn PDF document text
    • http://zufonokimilije.epizy.com/annual_general_meeting_powerpoint_template.pdfIn PDF document text
    • https://2cc3dcad-61c1-4442-8662-ca5be7cd8672.filesusr.com/ugd/71b93f_1a5b3eea8ecf4354b203deac452107f8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/baking_sheets_with_parchment_paper_o.pdfIn PDF document text
    • https://e8c82854-2a0b-4c0f-82de-bac600ce06e6.filesusr.com/ugd/d017d5_8bb63563f4dc4af386cc38b8adab6ff4.pdf?index=trueIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE179 5716 bytes
SHA-256: 352fc0988a8cfa77f37ebe80196c3a446bb84b1e5837b8a7ea806bd6f4942b29
font_01_sfnt_off0000f4ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4CE 10484 bytes
SHA-256: f4f360e21d85d3b075f56208903e3c925cf63f8fb639c1a489b5faade3bc5b45

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