Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bec49ff01c9ac92…

MALICIOUS

PDF

75.3 KB Created: 2021-04-06 15:33:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e970f8548dc708394f884b49dea1d91 SHA-1: bca8a2944c0b7b3d6ee1d224ab268081c1f30ee7 SHA-256: 6bec49ff01c9ac924b357cc24904d096d55d10a3e046671d73240e3124c7d970
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains an external URI pointing to a suspicious domain, likely intended to deliver a payload. The presence of a visual download button heuristic further supports a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=shadowrun+returns+android+apk
    • http://digitalmedialit.com/30496372808v79a0.pdf
    • https://cdn.sqhk.co/gusisezepemu/hgfYwie/graphing_and_data_analysis_worksheet_answers_key.pdf
    • http://korecos.ru/buferenanakukeramamofomonyw9m8.pdf
    • https://cdn.sqhk.co/tukawezezo/eiflJj4/bitmoji_app_icon.pdf
    • http://cryogen.me/forming_adjectives_from_nounseia83.pdf
    • https://cdn.sqhk.co/gotulurowav/jg2hciK/83605463705.pdf
    • https://cdn.sqhk.co/bowazeduz/RdRieid/injustice_gods_among_us_mobile_hack_no_survey.pdf
    • https://cdn.sqhk.co/foxenikap/hezhbic/ukulele_chords_file.pdf
    • https://cdn.sqhk.co/mifijizudi/Vjccjap/kewuvapodobo.pdf
    • https://cdn.sqhk.co/jumunuji/WjfqOpI/bofabumezakeginesiton.pdf
    • https://cdn.sqhk.co/felinavaw/ymhyifl/rawapanikeliwowajabit.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/lanubili/idaho_fish_and_game_elk_harvest_report.pdf
    • https://uploads.strikinglycdn.com/files/130b0307-aa1c-4aa3-a600-08d4faef6c8e/gawazosate.pdf
    • http://sovuberexizizir.epizy.com/collision_reporting_centre_mississauga_police.pdf
    • https://uploads.strikinglycdn.com/files/ebc254b9-0270-4e3e-99c7-f05bf8064828/life_fitness_95x_inspire_elliptical_manual.pdf
    • https://s3.amazonaws.com/tufitijinexu/advanced_sql_injection_hacking_and_guide.pdf
    • https://uploads.strikinglycdn.com/files/2da0482e-612b-4829-a904-1d1509e55d08/sedodoled.pdf
    • https://uploads.strikinglycdn.com/files/875978f9-2cae-4ebc-8563-fd3b61977ccd/biblia_textual_3ra_edicion.pdf
    • http://wibefiwijufet.epizy.com/mekerobubu.pdf
    • https://s3.amazonaws.com/bupaxomu/why_does_my_asus_monitor_says_hdmi_no_signal.pdf
    • https://uploads.strikinglycdn.com/files/5a3ca147-955e-4261-8ded-42fe8cb14fda/devi_bhagavatam_sanskrit_and_english.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_off0000e798.bin
b7a1f963a4039430eadb2293267515f2e2969c47bdfb16027a4a63225fbc5637		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE798 5276 bytes
font_01_sfnt_off0000f995.bin
b6c9c49efa00104bfb27a2fbaec8e5013c99b7df3e062a81d04d7394fb5e350e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF995 11260 bytes

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