Malicious PDF — malware analysis report

Static analysis result for SHA-256 092b0568ad430520…

MALICIOUS

PDF

84.9 KB Created: 2021-04-15 05:52:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 8d899c4e06df2071dd072476ff5e81df SHA-1: cfcf74a133d8fa21a9e5001540b2fed9e1d4f326 SHA-256: 092b0568ad4305200496ab291ec2567eebe22d30bb63815043fd7612045124fb
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 URL that mimics a search result, directing the user to a suspicious domain. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to exploit user curiosity and lead them to a malicious site, likely for credential harvesting or further malware delivery.

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://bologen.ru/strik?utm_term=what+is+the+tibetan+book+of+the+dead+and+why+is+it+popular PDF link annotation
    • https://cdn.sqhk.co/vefusujix/jdLihUD/29799173653.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/PibLjcP/clothes_worksheets_clipart.pdfIn PDF document text
    • https://cdn.sqhk.co/razefudixid/fibVhjF/37135307905.pdfIn PDF document text
    • https://cdn.sqhk.co/bubiwalifeda/dBajdii/grid_autosport_android_apkpure.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzexesetaba/jpifhfb/zirefixonukusu.pdfIn PDF document text
    • https://cdn.sqhk.co/padixemugex/Kjxhaif/91225142418.pdfIn PDF document text
    • https://cdn.sqhk.co/fabokofe/fJx9BjX/gowuded.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/xukirizugukugi/fedramp_policy_templates.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e22073ea-a080-474a-aeef-109c7a902635/fawururimirumagejamaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db18a54c-7aca-4fe9-b1b5-c3f705bb5350/nufigiwabuxijumonotesa.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/how_to_maintain_a_craftsman_snowblower.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bfc2a43-6df1-46f5-9d7e-10d508414884/rime_of_the_ancient_mariner_summary_short.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a140da1-70af-4af6-85cb-4e0f9158bada/sunomuxijasisok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7fcce0f-8edf-4992-b014-a3ceecbaa584/tibezagogaxokigigul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/240d8b5e-80cc-438d-a409-a8696229993e/simbologa_de_diagrama_de_flujo.pdfIn PDF document text
    • https://s3.amazonaws.com/pasutiz/welder_practice_interprovincial_red_seal_exam_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/sozulazu.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/bike_stickers_images.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0f1d757-c70a-4c4e-8853-07e40a953656/2786897804.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/raxiseradonafozo.pdfIn PDF document text
    • https://s3.amazonaws.com/dafumuxitupav/beats_pro_earbuds_colors.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/mewulikinefifawizoxuvepi.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/boliriloruvo.pdfIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001004e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1004E 5420 bytes
SHA-256: 46a74c6f6a80ca80e4ef88adb882d86feb4a96bc90fa07402cfa405f35f48e87
font_01_sfnt_off000112b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112B8 10620 bytes
SHA-256: c503293e2ee931e5e55a936a099d188d633b3a133a8a09cdc111bf3f6ec794fd
font_02_sfnt_off00013734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13734 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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