Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e0e1177de5e05f0…

MALICIOUS

PDF

80.1 KB Created: 2021-04-02 11:58:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1c87152840356d4f4561c9b6bd63e2ef SHA-1: 12f2e6ceec95473c236a6a909b97be5108741437 SHA-256: 8e0e1177de5e05f0fa3130b553bc57f539ce9e4d68cfba16d1427df4c2d5b4eb
96 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically identified as malicious and pointing to a phishing domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. The document body, though heavily obfuscated, suggests a lure related to 'Clan brujah pdf'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jacksth.ru/award?keyword=clan+brujah+pdf
    • http://meetlait.pro/hunger_roxane_gay_quotesvai4j.pdf
    • http://arm-watch1.club/cos_180_is_equal_toycvvl.pdf
    • http://ecoservice-vlad.ru/mijikabedipizovazamadadewbuolv.pdf
    • http://ita-women.space/fekapamimukufi1un2g.pdf
    • http://hookup754.fun/rupif1ap06.pdf
    • http://bodyita.space/society_bylaws_format58d3z.pdf
    • http://pidopefajo.22web.org/17608867543.pdf
    • http://help-copyrighteamservice.com/low_cholesterol_diet_aha9z9qw.pdf
    • http://mnogoturov.com/kuri_robot_pricezeuzd.pdf
    • http://itverys.space/nadufuwamapukosadizessa78u.pdf
    • http://regsenatvumen.website/vista_valley_tC3BCrkC3A7e5jgv5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/muxegeza/novos_jogos_de_dragon_ball_z_android.pdf
    • https://uploads.strikinglycdn.com/files/f4cf8c33-be08-40d1-8e3f-f48837de11e8/91980288878.pdf
    • https://e437b920-fa79-41d5-b67c-0ca059f4e77a.filesusr.com/ugd/d97c10_67ce7108ee5a41d49c107ef7d2fd5331.pdf?index=true
    • http://nenilezum.epizy.com/crc_brake_cleaner_safety_data_sheet.pdf
    • https://uploads.strikinglycdn.com/files/2a216a50-b71c-4461-9390-fffe26cfd8da/how_to_reset_a_viper_remote.pdf
    • https://uploads.strikinglycdn.com/files/242e572e-7f8f-41ef-bf7a-014423da55c1/wabajoniwitosiluse.pdf
    • https://s3.amazonaws.com/jutenojamega/67220673165.pdf
    • https://uploads.strikinglycdn.com/files/7801edaf-c073-465f-99c0-7baa76791336/colt_ar_15_model_613.pdf
    • https://33c7e2ec-32fc-4676-a642-9d95a4379e01.filesusr.com/ugd/622218_8641ff1e9f9e4df1b5a23c7f573432c3.pdf?index=true
    • http://nagurinetawami.rf.gd/47537855873.pdf
    • http://vezenupu.epizy.com/dowub.pdf
    • https://uploads.strikinglycdn.com/files/669f97a4-ace6-48ad-aeb7-6b54b8c8609e/how_to_play_bags_game.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_off0000fc5e.bin
7e0430e038da9ae15ae1236737d2a230bedee2e07dc59ae19de9aa53a29a44f7
pdf-font-stream PDF embedded font (sfnt) at offset 0xFC5E 5072 bytes
font_01_sfnt_off00010d90.bin
1012b085208201d30114590208889bf45817ba20ce41c64a292e91b512ac7a4c
pdf-font-stream PDF embedded font (sfnt) at offset 0x10D90 10852 bytes