Malicious PDF — malware analysis report

Static analysis result for SHA-256 69919628d5666528…

MALICIOUS

PDF

85.2 KB Created: 2021-03-08 15:15:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 3f68131a293d7c08666d1b7c598dde93 SHA-1: d7124297cd4e5fb70eb086c3f84242472e19b824 SHA-256: 69919628d5666528d7238adf1bc47934aa5d643983a310293c951d4c3bf352b4
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. An external URI pointing to 'gimoguvi.ru' was extracted, disguised with search terms related to the King James Bible, suggesting a phishing or malware delivery lure. No scripts were extracted, but the presence of an embedded URL in a malicious PDF is a strong indicator of an attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://gimoguvi.ru/123?utm_term=king+james+bible+tagalog+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366348/normal_6035ffdae33f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454054/normal_5fd1ec0ad18f8.pdfIn PDF document text
    • https://cdn.sqhk.co/lamidipeke/hf2Eggi/crush_the_castle_2_unblocked_6969.pdfIn PDF document text
    • https://cdn.sqhk.co/mobovogoneja/jeRhcje/83314774358.pdfIn PDF document text
    • https://cdn.sqhk.co/mogizilo/ghcijhI/jibonot.pdfIn PDF document text
    • https://cdn.sqhk.co/kizofapekeku/qchcKlg/sagosomuvuvukivoxubamu.pdfIn PDF document text
    • https://cdn.sqhk.co/temejikowewa/ibgi5Tl/reckless_racing_3_4pda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494883/normal_6024c0a153ba4.pdfIn PDF document text
    • http://zevewidojodot.mywebcommunity.org/uncle_iroh_is_the_best_character.pdfIn PDF document text
    • https://cdn.sqhk.co/gebitasixa/eq4rJij/junim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454041/normal_601cdaaf6ab9a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/cuales_son_los_principios_de_la_economia_azul.pdfIn PDF document text
    • http://pizitibasowu.atwebpages.com/how_do_you_use_a_stanley_jump_starter.pdfIn PDF document text
    • http://sogoxutagejuno.atwebpages.com/48394777390.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/bufepapunusujolimigemofu.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/stremio_apk_android_4._4.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/17319135341.pdfIn PDF document text
    • https://s3.amazonaws.com/moduluzuxikari/chuchumaa_by_willy_paul_video.pdfIn PDF document text
    • https://s3.amazonaws.com/nevovumowa/digital_minimalism_book.pdfIn PDF document text
    • https://s3.amazonaws.com/xulikamul/dunkin_donuts_delivery_boston.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/event_planning_template_free_word.pdfIn PDF document text
    • https://s3.amazonaws.com/wewiro/91847467679.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF31 5272 bytes
SHA-256: ceb1b8ea6c162b6e595f32fb5f032b78dc3014b070cb8dfed034ddd5fe6c1e07
font_01_sfnt_off00010114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10114 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_02_sfnt_off00010c77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C77 10952 bytes
SHA-256: 5a41483c40be69a310e63475662e1f12051bc3fa5bcd24548da2ca01cfae5173
font_03_sfnt_off00013228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13228 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073

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