Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0c5ffcae25fc737…

MALICIOUS

PDF

85.3 KB Created: 2021-03-14 05:28:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c13ef60755db451892fc3b5ce0417a3 SHA-1: 2edafbb257c1322e06e99cfe3410c4f30cc42e34 SHA-256: d0c5ffcae25fc737ac82520ab729da66b191cbfb52f8d4273ef0b659ccad7ebf
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 malicious domain, likely intended for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a product manual, suggesting a social engineering tactic.

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://nipisod.ru/wix?keyword=britax+b+safe+35+2015+manual
    • http://dronextactical.xyz/what_is_the_age_of_reason_in_the_biblel3g05.pdf
    • http://fabulouss.space/vumolagararutibeqilk7.pdf
    • http://good-production9.site/55728359017wt7kj.pdf
    • http://cocobeautybar.ca/22845413838sg7rm.pdf
    • https://static.s123-cdn-static.com/uploads/4387242/normal_6006c56428625.pdf
    • https://cdn-cms.f-static.net/uploads/4462345/normal_600da6082fec3.pdf
    • https://cdn-cms.f-static.net/uploads/4453338/normal_6046522231238.pdf
    • http://igcopyrightclient.com/fitazemaxozuzije42n44.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/9d7927c3-3256-48b9-b3a3-9e79905554a1/25310086361.pdf
    • http://zowomazo.epizy.com/qualys_policy_compliance_sample_report.pdf
    • https://uploads.strikinglycdn.com/files/072aabf0-cbf1-47bb-b4a8-4e3f966e6a6d/79349474455.pdf
    • https://uploads.strikinglycdn.com/files/2ec653f4-b2d5-4b68-ac63-1026c50f193b/wenewenajexevofo.pdf
    • http://pazizota.rf.gd/budget_spreadsheet_apple.pdf
    • https://uploads.strikinglycdn.com/files/73e0a8ec-d832-4716-a9d0-1b2b90e05991/how_to_bypass_parking_brake_wire_on_pioneer_avh-1300nex.pdf
    • https://uploads.strikinglycdn.com/files/840887eb-4774-400e-9c12-1f24af8d1741/what_is_supervision_in_social_work_practice.pdf
    • http://jipopoj.rf.gd/probabilidad_y_estadistica_definicion_matematica.pdf
    • http://fejivexol.epizy.com/preparation_of_diphenylacetylene_lab_report.pdf
    • http://penevebepor.epizy.com/sukudivapo.pdf
    • https://uploads.strikinglycdn.com/files/ef1b1bc4-dfd4-41c8-8562-c8d30e6966de/lisapeguze.pdf
    • https://uploads.strikinglycdn.com/files/0e26e545-cdfc-428a-81c2-d4c46efaa361/89826425045.pdf
    • https://uploads.strikinglycdn.com/files/17a00d1d-d4ec-4b7e-b872-49115b4e1f05/fubufopudimisalarev.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_off00010e31.bin
2e44f1dd605d06d5025d427f363adc9f4fff30cc5b6a28145fb3850cbfd50dd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E31 5784 bytes
font_01_sfnt_off000121da.bin
331dc5dbb0f6e3defcffb40968944cd4cc8b4e7fa4e98e874f79f8e0104edf2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x121DA 11312 bytes

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