Malicious PDF — malware analysis report

Static analysis result for SHA-256 f12b6e600a8dbcf7…

MALICIOUS

PDF

77.7 KB Created: 2021-03-26 10:50:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f8fc8d9d37433f21bdcef063b0cadafe SHA-1: ef6bb7fa6873c76e0e7186a665784aeb6a822995 SHA-256: f12b6e600a8dbcf70770dc780f62d6b23adc0973c5c93d07b10f458762ec956e
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that appears to be a lure for downloading a modified application, indicated by the 'fishdom mod apk hack download' keyword. ClamAV and ML classifiers strongly indicate maliciousness, and the PDF_URI heuristic points to a suspicious external URL. While no scripts were extracted, the overall structure and embedded URL suggest a phishing or social engineering attempt to trick the user into downloading malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=fishdom+mod+apk+hack+download
    • http://tojagetuwiger.iblogger.org/bugaboo_cameleon_sheets.pdf
    • https://cdn.sqhk.co/sebidurubuze/M8hdPjc/senuw.pdf
    • https://cdn.sqhk.co/lobinazema/b8hgZig/programacion_para_robot_sumo_arduino.pdf
    • http://gallery-shop.site/7295115059701ah3.pdf
    • https://cdn.sqhk.co/pasepizut/jhyhewE/megan_thee_stallion_shooting_facts.pdf
    • https://cdn.sqhk.co/rujiwujik/aURjcNK/craigslist_denver_jobs_dishwasher.pdf
    • https://cdn.sqhk.co/nugunexinazo/hRcjjam/gelerewejibawol.pdf
    • https://cdn.sqhk.co/ruxunafifu/hipSiaN/slicer_machine_for_sale.pdf
    • https://cdn.sqhk.co/letarezetap/BgfBgji/jidetur.pdf
    • http://fruit-citrus.space/dell_r740xd_spec_sheetd372r.pdf
    • https://cdn.sqhk.co/toromerepowa/ifXZhe4/setozapigi.pdf
    • http://fragcups.com/tips_for_fire_craft_3d_pixel_worldsqsidw.pdf
    • https://cdn.sqhk.co/pawanipol/hbjbjjR/97503642749.pdf
    • https://cdn.sqhk.co/pazaxefuma/d8ggIhe/moneygram_app_send_money.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xukosabezapo.rf.gd/blue_and_white_christmas_tree_decorations_ideas.pdf
    • https://uploads.strikinglycdn.com/files/2af6c55f-d268-46c4-9ca5-8de2a0423290/bose_universal_remote_codes_uk_sky_q.pdf
    • http://xokilovemu.rf.gd/cardiopatias_congenitas_acianogenas.pdf
    • http://xigasew.epizy.com/calvin_commentary_on_romans.pdf
    • http://fuzesezetigogum.epizy.com/antigen_and_antibody.pdf
    • http://zebigibozudival.epizy.com/barcelona_walking_tour_map.pdf
    • https://uploads.strikinglycdn.com/files/cfaa9b7a-5c82-4b01-873c-405bb094329b/rpg_maker_vx_ace_tilesets_pack_free.pdf
    • https://uploads.strikinglycdn.com/files/c5e1d99a-93e7-4e38-a4d2-b2c3d1bb2112/rixaxibot.pdf
    • http://xinirujoki.epizy.com/battle_chasers_nightwar_gameplay_android.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_off0000f287.bin
07919259b7cd322ee3f4dc69f1a6fe3be709f322db1298c68b6cdc894c3dc955		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF287 5328 bytes
font_01_sfnt_off00010494.bin
83459d09405ddd73e45ff5b3faa88809f2f510babac0a9336d582c409a01d753		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10494 10792 bytes

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