Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e31ba99b7c8c5cd…

MALICIOUS

PDF

80.6 KB Created: 2021-03-24 08:48:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: c01c696fd7a8ae037f47de94c64e0da2 SHA-1: 5d294e0eea81a9c71b8c7c7e0320ddb49e5535a2 SHA-256: 9e31ba99b7c8c5cd2d648daae6902cfa785989e43d19b211863fcc27ce509bcf
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains an embedded URL that leads to a suspicious domain, likely serving as a lure for phishing or malware distribution. The document body, though heavily obfuscated, appears to be related to the URL's search query, 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://druttle.ru/strik?utm_term=what+is+the+golden+fleece+greek+mythology PDF link annotation
    • https://cdn.sqhk.co/gaxumisi/brhhx73/my_etisalat_afg_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/dowusutitozi/6gdjnTH/27967540732.pdfIn PDF document text
    • https://cdn.sqhk.co/xawenano/ShgqShc/best_werewolf_mask_for_sale.pdfIn PDF document text
    • http://pc-remont.website/learn_to_draw_app_ipad_proy7xxq.pdfIn PDF document text
    • http://forexgeeks.net/les_trois_mousquetaires_downloadfgjkq.pdfIn PDF document text
    • http://chempion.coffee/sopa_de_letras_para_imprimir_niosjnnev.pdfIn PDF document text
    • https://cdn.sqhk.co/xiladuxe/ehjicgi/luzuzetosonew.pdfIn PDF document text
    • http://rozel.ru/112987335342j0xc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fff3d009-0253-4f9e-b4ff-5b27726aecdc/father_and_sons_pizza_oregon_il.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/collage_maker_pic_grid_app.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/vuwivepevoxof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/442064ad-97c2-475a-9091-8c473d044d7c/whats_wrong_with_the_american_healthcare_system.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41efa47c-3e03-401a-abd5-a7555b37e086/la_la_land_city_of_stars_duet_piano_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e9bd1cd-55d9-4721-9b66-b8252398a40e/is_there_a_difference_between_ssi_and_disability.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18e01162-f551-4567-9d2f-1fb89071a64a/how_to_use_ryobi_3100_psi_pressure_washer.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/tilunonon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aeb35445-2365-43cf-895c-123a03e0d1b8/digi_002_firewire.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/64784363809.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4de20b79-7ede-4e44-85b0-6c01fcd4db03/remove_ocr_from_online.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/cheesecake_factory_skinnylicious_menu_nutritional_information.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_off0000e3ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3AC 7472 bytes
SHA-256: cf3b1cc1d0b898f0c0da39167dcecd1ec5ed8989ff58037ec472fed0c801875c
font_01_sfnt_off0000fcf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCF6 5616 bytes
SHA-256: 469008b29ce72a136d76f866dd986d51f73327b17d21ce2de86a32a5c492e019
font_02_sfnt_off00010ffe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FFE 10616 bytes
SHA-256: 53211700c57cf70ef2cb20795407a87c4cf12e43534b35823538fe7128746b2a

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