Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdb34fc24de2dc94…

MALICIOUS

PDF

78.5 KB Created: 2021-03-30 02:18:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 606c8fccca3ea5abd96ea07aed97628d SHA-1: e0cda4a8901288f1bfe949121654744e38605d07 SHA-256: fdb34fc24de2dc941df473882fac1421b51749dc32dd9aef795607c7d28f9b2d
96 Risk Score

Malware Insights

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

The file is a PDF document flagged as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, which is a common tactic for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, likely as part of a spearphishing campaign.

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://xezojetit.ru/strik?utm_term=moultrie+m-880i+game+camera
    • https://cdn.sqhk.co/gizoxemovefi/nsgFhca/pet_friendly_bubble_machine.pdf
    • https://tinutenuku.weebly.com/uploads/1/3/4/6/134664278/d3aad1149b7448.pdf
    • https://cdn.sqhk.co/gexedamej/cYGhiVj/carbona_color_run_remover_canada.pdf
    • http://usesucre.pro/what_is_the_expression_by_the_skin_of_your_teeth_meantod9a.pdf
    • https://menufaron.weebly.com/uploads/1/3/0/7/130775522/jabuzelojowin.pdf
    • http://teaitalis.space/wyze_cam_pan_1080p_best_buyjoi0l.pdf
    • http://neyroskakalka.site/fexewafo9itom.pdf
    • http://gapilojazixo.getenjoyment.net/advantages_of_capitalism.pdf
    • https://cdn.sqhk.co/nogorodizet/gicEjYQ/bedwars_minecraft_pe_server.pdf
    • http://eyebrowthreadingdallastx.com/wazedematoridids54fh.pdf
    • http://gonifarej.mywebcommunity.org/5785817760.pdf
    • https://cdn.sqhk.co/riraxizilob/YGxhgha/studying_amino_online.pdf
    • https://dekedenavit.weebly.com/uploads/1/3/4/6/134612093/wekifex.pdf
    • http://xufuzema.sportsontheweb.net/cbse_syllabus_for_class_10_2020_to_2020_download.pdf
    • http://card2card.live/whirlpool_thin_twin_washer_and_dryer_manual93hp9.pdf
    • http://fitnesspack.net/kawolabuwi6jle6.pdf
    • https://fiwisito.weebly.com/uploads/1/3/4/7/134715438/muketitom.pdf
    • https://cdn.sqhk.co/lekibefefu/dhehiiW/spectrum_dream_2d_pixel_platformer_games.pdf
    • https://fogolaliri.weebly.com/uploads/1/3/2/8/132814342/zipapupip_pumale_kojenag.pdf
    • http://wifunagidoli.mypressonline.com/west_bend_stir_crazy_deluxe.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://xuxerutiwuv.onlinewebshop.net/9614544902.pdf
    • http://zobibeki.rf.gd/32444157368.pdf
    • http://kizuwopo.epizy.com/98002473488.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_off0000e968.bin
2400df9b6cdf0b06016ff46702f9e6a54ab6dd201e6bb13559cb68e08d190f59		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE968 5088 bytes
font_01_sfnt_off0000fac9.bin
badabb09ff29a8b9f7994089bff62d88f05b858b55d9d7bfe2bdb1ffe574b2f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFAC9 10564 bytes
font_02_sfnt_off00011ec6.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11EC6 4324 bytes

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