Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0d98f59bfa322f1…

MALICIOUS

PDF

209.5 KB Created: 2021-04-05 12:06:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: c5f08d75cd687a4bf0b03c5de1f4ef95 SHA-1: 3451a64a26f9022b7a0f01cf7cf71d557e9e8ee4 SHA-256: f0d98f59bfa322f11494db6aed3329c67afba67108f658e892d78e25c4d64736
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 URI pointing to a suspicious domain, 'golowaki.ru', which is likely used to host malicious content or redirect to a phishing page. The document body, though heavily obfuscated, suggests a lure related to a 'Persona 3 vision quest guide'. No scripts were extracted, but the presence of external URIs and the overall detection profile indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9936

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://golowaki.ru/wix?keyword=persona+3+vision+quest+guide PDF link annotation
    • http://korecos.ru/application_of_biostatisticssr3tl.pdfIn PDF document text
    • http://renijulemigato.iblogger.org/administering_medications_pharmacology_for_healthcare_professionals.pdfIn PDF document text
    • http://prizinsta.online/40759130924ji7m9.pdfIn PDF document text
    • http://kurisuk.22web.org/69044715725.pdfIn PDF document text
    • http://muzoc.xyz/mokegemepmcxx.pdfIn PDF document text
    • http://changely.club/why_wont_my_stylus_pen_workt7jjg.pdfIn PDF document text
    • http://vizit.store/gafodakiritenodanuvinuml7cga.pdfIn PDF document text
    • http://nogixif.iblogger.org/11610851924.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://466f9527-ada3-48b4-ac0c-4ba5546996ca.filesusr.com/ugd/a4b6b9_2bb66ed99b394372b07e51c90da3708d.pdf?index=trueIn PDF document text
    • https://667b589a-70dd-4c78-a03f-47f6e9f07b1f.filesusr.com/ugd/db80c5_de923c26897748b3b0fd32e003968dd1.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c409ca03-8c17-4929-921c-ee704769def3/16060339673.pdfIn PDF document text
    • http://bibirosomuxir.epizy.com/alcoholism_thesis.pdfIn PDF document text
    • https://16564176-4c62-44d7-82e3-1dea6b832d73.filesusr.com/ugd/5e57cf_f2eb0a41829045d2876f90ff2c1b6391.pdf?index=trueIn PDF document text
    • https://80cb706b-a9cc-40e6-9cd2-ad5688d6c4a8.filesusr.com/ugd/c84a73_5e7d8f7952934769b1cc27d7a7d00bdb.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/48dff0c4-4dce-4b50-8710-238e365b5e1a/como_hacer_el_taller_mecanico_automotriz.pdfIn PDF document text
    • http://wabifitas.epizy.com/abstract_reasoning_test_with_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a374aad-e717-4005-a58a-49d0c4920caf/47962453150.pdfIn PDF document text
    • http://marilineme.epizy.com/99851177472.pdfIn PDF document text
    • http://pesafitibum.epizy.com/binet_kamat_test_of_intelligence.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2bf4bba-fa8f-42d9-9f12-328ee5a89de0/dish_vip722k_remote_setup.pdfIn PDF document text
    • http://zufamiba.rf.gd/12528019301.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_off00022c47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22C47 70032 bytes
SHA-256: 5d37fbbeee42bb9e5f68c8819ec46cabca4cc2a15f148395b0d2c849d253acd7
font_01_sfnt_off0002fe22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE22 5312 bytes
SHA-256: 39108f01d8367935c679f4f30338becb35891876da93f35953de86e3525540f7
font_02_sfnt_off0003103f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3103F 11908 bytes
SHA-256: 37ae8b85089c92503c08a0f425589cb91a035b8ce8da4e7a3157ace3287b3521

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