Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e7cc2b267c29df1…

MALICIOUS

PDF

64.8 KB Created: 2021-02-10 20:04:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 464a4647e48f3ef48dc8494cd795bbc1 SHA-1: eca2c04fcbde63c6886433b81af3419cfa2a21da SHA-256: 6e7cc2b267c29df1f382fb6a0a541720c9da42fa374f84e22b932321192dde8c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/aws?utm_term=myanmar+font+for+windows+10 PDF link annotation
    • https://cdn.sqhk.co/jedelamodafa/LBhhPD5/simplenote_app_linux.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388037/normal_5fc6b6d1d629d.pdfIn PDF document text
    • http://innov-cis.net/mikemarakewadokibisutojot6so37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381294/normal_5fd191505717a.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/jaVKgi4/kiko_alonso_injury.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373511/normal_5fdc0f179badc.pdfIn PDF document text
    • https://cdn.sqhk.co/remezebona/hgfghhe/vido_lyrical_video_status_maker_no_watermark.pdfIn PDF document text
    • http://onlajn-kassa.ru/puzzle_and_dragons_3ds_wiki41rf7.pdfIn PDF document text
    • https://cdn.sqhk.co/sozaxejiv/hibrjbA/mcat_exam_dates_2021_usa.pdfIn PDF document text
    • http://unityfree.xyz/babys_dream_serenity_criblr7ta.pdfIn PDF document text
    • https://cdn.sqhk.co/romumoxoleno/HNhhhcg/math_calculator_solver_with_steps.pdfIn PDF document text
    • http://mnclassis.org/bahubali_1_movie_songs_telugu948nw.pdfIn PDF document text
    • http://greatholl.com/anatomia_arteria_carotidafu9lm.pdfIn PDF document text
    • https://wedabivugexum.weebly.com/uploads/1/3/0/9/130968949/52550be02680.pdfIn PDF document text
    • https://cdn.sqhk.co/menigopas/a0pvjcK/plants_vs_zombies_heroes_mod_menu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC032 5416 bytes
SHA-256: 7186eed8b14a5d453489ee3f195835f8318f0d47d3400ad373819746101a42de
font_01_sfnt_off0000d2ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2AE 10552 bytes
SHA-256: 23753e7629813cfb4a7411b1740608e09a25f4dd6a2ce3b628d05e2e3bcc508d