Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe7845f1ccb6aa2e…

MALICIOUS

PDF

90.9 KB Created: 2021-04-25 13:56:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3158b4ac985ee18267bee16f968dccca SHA-1: 3f55411539924ab5d381a2c5df439b541a78b4a6 SHA-256: fe7845f1ccb6aa2e4247807fe3b101082aad460a2a3a2f368ce1ba6c9161044d
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ponafet.ru/strik?utm_term=what+is+the+best+cardio+exercise+to+lose+weight+fast
    • http://dezlice.ru/ludosigo34d77.pdf
    • http://bogplaktnc.fun/toggled_on_and_off_meanings63yj.pdf
    • http://bevaxifiro.22web.org/bazimemanixilabivoxe.pdf
    • http://xamawodub.22web.org/how_much_do_logo_designers_charge.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/ecfdd8c2-725c-4989-a975-62bd886ac584/how_computers_work_tenth_edition_ron_white_que_publishing_2014.pdf
    • https://uploads.strikinglycdn.com/files/dc4048be-75d8-43bc-a62c-1e5c5da23e9e/joruxenobewavapema.pdf
    • https://uploads.strikinglycdn.com/files/de699edb-16bc-4452-b802-008eb2dd2c08/how_to_replace_drum_cartridge_xerox_workcentre_3225.pdf
    • http://nukojuzodisojes.epizy.com/pibujugudetojekenirisu.pdf
    • https://uploads.strikinglycdn.com/files/ed006ace-8040-4be3-bb78-42a288b74032/5659727684.pdf
    • https://uploads.strikinglycdn.com/files/a1106ec0-d010-4b21-9a4b-281e14135612/sibaromijo.pdf
    • http://porugunime.epizy.com/how_do_you_bake_fresh_pizza_dough.pdf
    • http://xedonufil.rf.gd/furamirokew.pdf
    • http://bivapimoxulo.epizy.com/how_do_tall_buildings_stay_standing.pdf
    • https://uploads.strikinglycdn.com/files/a59b5ae4-6925-412f-aecc-6d67c7dc3973/how_many_calories_in_a_plain_bagel_from_dunkin_donuts.pdf
    • http://zawozunilutufu.rf.gd/android_mobile_restore_software_free.pdf
    • http://fikenojidukozo.rf.gd/how_to_add_waves_to_hair_with_flat_iron.pdf
    • https://uploads.strikinglycdn.com/files/b60ca1bb-984d-4312-9260-a968946116fa/tankless_hot_water_heater_valve_kit.pdf
    • https://uploads.strikinglycdn.com/files/96fe07f7-9112-4217-baed-7b492605e31e/69451238285.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011572.bin
dae68539f47dbeaf94e3027e345b7cf876c332ea430d7db8768e853d0e3b5c8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11572 5276 bytes
font_01_sfnt_off0001278c.bin
c147265eaabb237d23903daac2bc3d5d9b35ba2de3d271cc6ea2cbaef8288e71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1278C 11440 bytes
font_02_sfnt_off00014e4f.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14E4F 4324 bytes

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