Malicious PDF — malware analysis report

Static analysis result for SHA-256 e256c3bee367a14f…

MALICIOUS

PDF

80.2 KB Created: 2021-03-21 09:40:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4bdb7033ac0b5423d9d181f2f9bc1fff SHA-1: 508dcae7d3da28bea10fbc435649d1490c8f23f2 SHA-256: e256c3bee367a14fb7d7352c8fc3b131072e5469f99a098d38a8b54daaff6236
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with heuristics indicating the presence of an external URI. The document body, though heavily obfuscated, contains keywords related to 'PDF' and a specific search term, suggesting a lure. The embedded URL points to a domain associated with phishing, likely intended to deliver a secondary payload or redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://maypoin.ru/award?keyword=toxoplasmosis+cerebri+adalah+pdf
    • https://cdn.sqhk.co/ruwonumatag/kggeqii/nididelajaxev.pdf
    • https://cdn.sqhk.co/baluwofuk/b0jhTji/sdgr_ibanez_bass_guitar.pdf
    • https://cdn-cms.f-static.net/uploads/4366959/normal_60339165207fc.pdf
    • https://static.s123-cdn-static.com/uploads/4454679/normal_5fff3e3a9982a.pdf
    • https://jiparebifipi.weebly.com/uploads/1/3/4/6/134638028/ad1b2.pdf
    • https://cdn.sqhk.co/rudugebakivo/jgUhjjb/world_war_z_game_ps4.pdf
    • https://cdn.sqhk.co/natokaze/Tsij4gg/siturupubif.pdf
    • https://cdn-cms.f-static.net/uploads/4470977/normal_60119fad90229.pdf
    • https://sofovelo.weebly.com/uploads/1/3/1/3/131379060/c076b.pdf
    • http://palopepidek.mypressonline.com/kenmore_elite_mini_fridge_parts.pdf
    • https://cdn.sqhk.co/pimidima/iacj9jf/samanese._ir_99.pdf
    • https://cdn-cms.f-static.net/uploads/4390350/normal_603a0a0e16ec0.pdf
    • http://pozufopajosel.mypressonline.com/60492969619.pdf
    • https://cdn-cms.f-static.net/uploads/4366324/normal_600b8f3816a42.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/ec8649a0-9b6b-410b-b7de-68c6891e8099/final_fantasy_x_manual.pdf
    • http://fukuselumetu.myartsonline.com/is_cfe_certification_worth_it.pdf
    • https://uploads.strikinglycdn.com/files/a0b6ff02-37d2-43db-b801-a1932af7a7c1/how_to_prepare_for_a_building_inspection.pdf
    • https://8ac5c8e1-9174-427d-95c2-90bebb9f105a.filesusr.com/ugd/44b221_a1e2ebeae4c94c249fe92ac2410d8688.pdf?index=true
    • https://0296ecfc-28ae-4fa5-925c-67a25994cace.filesusr.com/ugd/c88839_05f3f741a7324eea98bfc4651c5bba0d.pdf?index=true
    • http://pigutun.myartsonline.com/fagezekasefuwanurev.pdf
    • https://uploads.strikinglycdn.com/files/8c2fb61f-241b-4ea7-81c0-b6d4fda167c2/what_is_a_religious_science_practitioner.pdf
    • https://uploads.strikinglycdn.com/files/5ebc5945-4b98-44ab-a91f-0646c27f97d7/65574541433.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_off0000ee45.bin
45eeb01001983ae3bcdb59f6a3edf233e8ed741db8404b9b608c3295fb4adf82		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE45 5156 bytes
font_01_sfnt_off0000ffc2.bin
6a4d64b793f45846f61bead528c8dc522a92ebda0be7d08cb0ef123d16154a97		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFC2 10828 bytes
font_02_sfnt_off00012491.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12491 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.