Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4dc1c96aba972ba…

MALICIOUS

PDF

82.9 KB Created: 2021-04-05 14:32:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0d432c9f28e89f05712d39d6b3e50b5c SHA-1: 50b69e23af88b66018c1b0ee1eddc78992b72de4 SHA-256: a4dc1c96aba972ba67878e105784ce302991458b9782f161904adae0c59b7d9d
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/aws?utm_term=how+much+is+hp+deskjet+2620+printer PDF link annotation
    • https://cdn.sqhk.co/fokivetezabu/DWJicKG/flying_birds_gif_download.pdfIn PDF document text
    • http://babysampler.com/maps_master_for_minecraft_pe_apkhyrqw.pdfIn PDF document text
    • https://cdn.sqhk.co/wexufenu/j3hbhiy/imaginext_super_hero_flight_city_not_working.pdfIn PDF document text
    • https://cdn.sqhk.co/fevazufalul/Qiasib5/58952985885.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/jijbiET/54107553614.pdfIn PDF document text
    • http://autobuff.xyz/parler_social_media_stock_symbolvc414.pdfIn PDF document text
    • http://nuvagefo.medianewsonline.com/what_is_cvo_curriculum_vitae_in_tabular_form.pdfIn PDF document text
    • https://cdn.sqhk.co/risenulowo/cjbmjjg/alan_walker_magic_tiles_3.pdfIn PDF document text
    • https://cdn.sqhk.co/ramazunor/VlqOTii/whatsapp_for_nokia_e72-_1.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/giijha1/phone_ringtones_youtube.pdfIn PDF document text
    • https://cdn.sqhk.co/vawadawuleja/heafhhP/dream_daddy_hugo_x_damien.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/risisipajole/99801049825.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/calculus_3_solution.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/merikokag.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/47286483316.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/game_android_mod_highly_compressed.pdfIn PDF document text
    • http://woxesizefibugel.atwebpages.com/bankers_adda_current_affairs_june_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/xulikamul/crazy_train_tuba_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/lost_girl_episodes_watch_online_free.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/60166583252.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000105c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105C8 5692 bytes
SHA-256: 5860852b09e2bde66da5d0f1400a67c43ba7e1bb02d24cfdcd8edacb0e9abd3b
font_01_sfnt_off0001191b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1191B 10892 bytes
SHA-256: 0f1bcd471345583676ae8048775197482b37aa91b53f33b1f32ea8b31cc8a735

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