Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bfc1ab0f567f600…

MALICIOUS

PDF

68.6 KB Created: 2021-03-04 23:33:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: a1d5ca5a4c5b89c55626ad457c54215a SHA-1: dc1a63d35330494d42d5d57c516fcd2a128d7b56 SHA-256: 7bfc1ab0f567f60081a8b7602c1ef367fd0e89cdae8eef6d3b8e9ade95fb2ef9
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL that leads to a suspicious domain, likely intended to trick the user into visiting a phishing or malware distribution site. The document body, though heavily obfuscated, appears to contain product-related keywords, suggesting a lure.

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://druttle.ru/123?utm_term=blackburn+trakstand+mag+trainer PDF link annotation
    • http://tupakewufitid.iblogger.org/fisonepisodafukaretol.pdfIn PDF document text
    • http://zanexipizuzog.iblogger.org/tebimesuneguvatu.pdfIn PDF document text
    • http://matepiruzozu.iblogger.org/rosomotawesuxomujamik.pdfIn PDF document text
    • http://jotijitod.66ghz.com/uc_browser_software_softonic.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/c3e53ae3-2f59-4060-a6b4-7af3d28d4469/44126166596.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/lumiere_durham_2019_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/htc_m7_vs_m9.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a76790c-81f9-46b1-b26d-13e251a0a967/how_to_reset_keurig_k400.pdfIn PDF document text
    • http://bidetorula.rf.gd/free_niv_bible_for_android_phone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51a8e754-a6e6-45fc-822f-de1d42d86da3/motazafawepedul.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/bovine_viral_diarrhea_merck_veterinary_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/nepidigegedamit.pdfIn PDF document text
    • http://xibupafuvobiluk.rf.gd/96999711663.pdfIn PDF document text
    • http://jegelafaxorew.rf.gd/22854171643.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/i_pace_top_speed.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/galvin_green_alf_waterproof_trousers_size_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9af3902c-882c-46f3-9c28-d67c6319fb88/what_does_e1_mean_on_a_electric_heater.pdfIn PDF document text
    • http://givudejefavapa.rf.gd/french_expression_of_the_day.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/238bf80d-56e5-43b3-a56b-352a7daef1d1/61769280286.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66f841e9-7e91-423d-b9b5-18672dca652d/price_for_stihl_ms250.pdfIn PDF document text
    • http://jatamez.epizy.com/calcium_oxalate_formation_in_beer.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/outline_political_map_of_india.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f406646-3eb5-4915-81f1-2dc684068484/coach_quakerbridge_mall.pdfIn PDF document text
    • https://s3.amazonaws.com/fevobelijogal/craftsman_garage_opener_program.pdfIn PDF document text
    • https://s3.amazonaws.com/wemofodi/domobetijaxiwowasadad.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD160 5512 bytes
SHA-256: 8d32089a02208ee6c14c0a9611c33fdc191f77ed140e0f4acacb178e29ddfb50
font_01_sfnt_off0000e40b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE40B 9660 bytes
SHA-256: b53d410f826974b9faef1b573c1ef82856912fded9bd61445690943a5e717444

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