Malicious PDF — malware analysis report

Static analysis result for SHA-256 9246de75ea457559…

MALICIOUS

PDF

71.5 KB Created: 2021-03-02 12:51:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f84778eccf3c84b26910693db1f38923 SHA-1: 1c9b5009d50c558afd0f4ee5f3920b3bb5350afc SHA-256: 9246de75ea45755935f6bf2b625468859c4a5f54dd21d31ede9362e731870908
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/wix?keyword=esquire+grooming+products PDF link annotation
    • http://jamonomikusuka.22web.org/31517733250.pdfIn PDF document text
    • http://domensita.fun/joint_venture_agreement_south_africar9f1k.pdfIn PDF document text
    • https://cdn.sqhk.co/fazofasufiwu/hhhhh2x/amazon_kindle_fire_7_won_t_turn_on.pdfIn PDF document text
    • https://cdn.sqhk.co/bomemenun/T0yoigz/62566164627.pdfIn PDF document text
    • https://cdn.sqhk.co/kawiwitifa/Rhcyjgi/nbc_sports_app_authentication_error_directv.pdfIn PDF document text
    • https://cdn.sqhk.co/wifavizen/oXif7QV/angry_birds_transformers_telepods_toys.pdfIn PDF document text
    • https://jerolukemotib.weebly.com/uploads/1/3/0/8/130874115/bde49e45a57db8e.pdfIn PDF document text
    • https://cdn.sqhk.co/nuditufu/Ygegfha/71335305272.pdfIn PDF document text
    • https://cdn.sqhk.co/kamozipu/0gji3eD/mor_sansar_ma_cg_song_download_dj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369307/normal_5fd9c3b58a753.pdfIn PDF document text
    • https://cdn.sqhk.co/sovanoniwuva/jgif8XF/poached_egg_calories_nutrition.pdfIn PDF document text
    • https://cdn.sqhk.co/kukisigafumi/geja0ie/riwavijajadinumumigetu.pdfIn PDF document text
    • http://lolkek.xyz/videwuv1v5.pdfIn PDF document text
    • https://cdn.sqhk.co/fekebazi/jfihUhP/12552215938.pdfIn PDF document text
    • https://viledilexemapol.weebly.com/uploads/1/3/4/6/134698440/7830457.pdfIn PDF document text
    • https://jikovezogid.weebly.com/uploads/1/3/1/4/131407088/731a0.pdfIn PDF document text
    • https://rowusebejaron.weebly.com/uploads/1/3/1/6/131637242/modanoxometet.pdfIn PDF document text
    • http://calipshatngaccs1.xyz/tizilawifigekisidexuxifqeodh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sejonigimanam.epizy.com/23310900484.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAC3 5236 bytes
SHA-256: b0799c21d1c08ef81d828545e6116519d5be3911c6f497a430b8c5841ffee68c
font_01_sfnt_off0000ec77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC77 10700 bytes
SHA-256: 1a81ceaa2157e16a3b1e39e35037317e157eb902cb983b72f052f2f168ef648a

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