Malicious PDF — malware analysis report

Static analysis result for SHA-256 66f97fd2a7d6a39f…

MALICIOUS

PDF

83.7 KB Created: 2021-03-14 03:23:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb8eb422b970ad69e229c93e7bc16c89 SHA-1: 7ba2e4f4fe25c79683208dd9e33f94d852046c4f SHA-256: 66f97fd2a7d6a39f8dd9557f951cdb0129f01874954e05c0e53311c5edef53a1
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains an embedded URI pointing to a suspicious URL, likely intended to redirect the user to a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to lure the user to a compromised resource.

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://ponafet.ru/wix?keyword=weapons+and+warriors+new
    • http://tezoxefakalexo.sportsontheweb.net/66249326995.pdf
    • https://cdn.sqhk.co/ruzaxube/9SOJQPe/jcc_smart_payments_cablenet.pdf
    • http://zekojotewakugag.mypressonline.com/la_boite_a_merveille_chapitre_1_analyse.pdf
    • https://cdn.sqhk.co/majumoros/agfB3n8/64716120281.pdf
    • https://cdn.sqhk.co/jaxubefe/Wjhge0F/nba_2k20_soundtrack_songs_list.pdf
    • http://cleaner360.shop/81751429888zvyu4.pdf
    • http://ecosbor.net/what_is_ic_engine_and_typesfizpa.pdf
    • http://xorimomupajo.scienceontheweb.net/bolaso.pdf
    • https://cdn.sqhk.co/dolafita/e7gjicD/video_converter_avi_to_mp4_offline.pdf
    • http://beririka.scienceontheweb.net/triangle_congruence_test_answer_key.pdf
    • http://hookup666.site/arcane_mage_leveling_guideeircn.pdf
    • http://roboludawu.mywebcommunity.org/limere.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://faxumigupep.rf.gd/48565476958.pdf
    • http://xusexupilaru.epizy.com/crusaders_of_light_quest_guide.pdf
    • http://newemepakirid.myartsonline.com/92969913084.pdf
    • https://f200304d-316b-45a9-b05c-680123ec6d1a.filesusr.com/ugd/aad1a2_f56c44c0dcfd4c50a79e613de9efa549.pdf?index=true
    • https://b20aee1f-b1b7-4e4e-be5e-d884e4ece670.filesusr.com/ugd/10e3af_3013e34ec95c470fa2892edfa6b5be0a.pdf?index=true
    • https://34e223d5-b18a-4f89-96b3-7c58aa965d90.filesusr.com/ugd/440e29_62f394fb9ffe4398ba9b27fc6525aafc.pdf?index=true
    • https://2c5a832e-93c4-4ab0-bef0-969ef348d747.filesusr.com/ugd/cc5daa_8f31921e27fd47e4b5d6e2402edf16e5.pdf?index=true
    • https://46c0acaa-de7d-4f46-84f0-c2cf1d8ff7d9.filesusr.com/ugd/ac1638_0b8c9d4a19e54c0bba467e87f4cf1198.pdf?index=true
    • http://zipokuxabatu.rf.gd/wordscapes_answers_game_solver.pdf
    • http://gewagopixinilu.rf.gd/arauco_mdf_catalogo_2019.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_off00010559.bin
4fe3e0c5cd3dc8984fbb2ef2f19369cfaee19951a7388b9fa39531662c8b3370		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10559 5028 bytes
font_01_sfnt_off00011696.bin
6bb866209e83763dc34cb70d32ba03031d33f34d5ec104aae92f17ce0ef41023		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11696 12460 bytes

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