Malicious PDF — malware analysis report

Static analysis result for SHA-256 967511082b0bd174…

MALICIOUS

PDF

81.1 KB Created: 2021-04-13 10:25:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68225d18614e7ff3e4a6eea4980c071f SHA-1: 1ab8a3d7d6329f999eed8a6715c7a97ee321e134 SHA-256: 967511082b0bd174ea6374939b713fc478beea9e77a5e2a372105e8613631550
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to 'https://zajinet.ru/strik?utm_term=hip+hop+drum+beats+free+download', which is highly suspicious. ClamAV detection and ML classification further indicate malicious intent, specifically flagging it as 'Pdf.Phishing.Trojan'. The document body, though truncated and obfuscated, suggests a lure related to free downloads, aligning with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://zajinet.ru/strik?utm_term=hip+hop+drum+beats+free+download
    • https://cdn.sqhk.co/forinabam/a2hiFEo/zulumimenebujiwil.pdf
    • https://tozakewa.weebly.com/uploads/1/3/5/3/135398337/mamuxusurawu.pdf
    • http://suludosepo.iblogger.org/59251498352.pdf
    • https://cdn-cms.f-static.net/uploads/4365619/normal_606de01e63ede.pdf
    • https://cdn.sqhk.co/mirofifuba/iieEltI/81759890940.pdf
    • https://muzikalojex.weebly.com/uploads/1/3/4/0/134012647/642752.pdf
    • https://cdn.sqhk.co/wireriduwude/gcgQhat/xudawogexuwuxifodim.pdf
    • https://cdn-cms.f-static.net/uploads/4501794/normal_605d1b8118594.pdf
    • https://static.s123-cdn-static.com/uploads/4489730/normal_5ff30ed8182f8.pdf
    • https://static.s123-cdn-static.com/uploads/4465402/normal_5ffe88a7c07ca.pdf
    • https://jovinafunen.weebly.com/uploads/1/3/2/6/132695325/fed231924c7.pdf
    • https://cdn-cms.f-static.net/uploads/4375095/normal_602b8588e6017.pdf
    • https://cdn.sqhk.co/nupasoxure/hiheEmA/music_player_website_templates_free_download.pdf
    • https://timokejega.weebly.com/uploads/1/3/4/4/134454798/4b73c011f240479.pdf
    • https://tusatetop.weebly.com/uploads/1/3/1/4/131408029/9d74d616e.pdf
    • https://cdn.sqhk.co/fuvepiwedo/gdEjjhh/95783428512.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pemupenox.rf.gd/4522401548.pdf
    • http://wevoxefi.epizy.com/guidepoint_pharmacy_crosby_mn.pdf
    • https://uploads.strikinglycdn.com/files/7b5f0471-1ab3-487c-9b8a-455d068d75d7/62411177774.pdf
    • https://uploads.strikinglycdn.com/files/aa744052-44fc-4160-a6c8-c5600fc20f6d/how_to_breed_pokemon_without_ditto.pdf
    • https://uploads.strikinglycdn.com/files/88e66bea-7b17-41e5-baf8-1c64e0f2d6c1/mivedusafikavuleril.pdf
    • http://soxomidil.epizy.com/rewod.pdf
    • http://pavemamixazose.rf.gd/business_card_app_free_android.pdf
    • http://babudenipovux.rf.gd/19585684887.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_off0000fd63.bin
e37ea1e44329ab37e5f35d49976c8f9efe80f232339f617133cbff66e9b5e63f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD63 5472 bytes
font_01_sfnt_off00010fda.bin
3e80b753be96994f7c1d51084b9af28dc502b3b23a48a4ef218ef308a3934116		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10FDA 11720 bytes

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