Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bdad22b31fcf622…

MALICIOUS

PDF

72.6 KB Created: 2021-02-19 05:37:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: deada3567822def040d9e8fc23254b13 SHA-1: 7aa6d2af59a623d9281dcf573b58005dd475e86b SHA-256: 2bdad22b31fcf6226268fa1a0d733d6d40a2d86c8f63ce4fe34f2d724c6e145c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=uc+health+stadium+fireworks PDF link annotation
    • https://cdn.sqhk.co/xomifinetepi/idjfghB/lonupabeja.pdfIn PDF document text
    • https://jarofuzaduse.weebly.com/uploads/1/3/4/5/134502270/wagewejuvidoz_vakutarisogegix_kijowekan_zeratijegoj.pdfIn PDF document text
    • https://zaxanedipujez.weebly.com/uploads/1/3/4/5/134582154/pizomi_tesutumiram_simanetamo_rizituvobik.pdfIn PDF document text
    • http://cleanup-sale.site/norberto_bobbio_democracia_e_liberalismoan0xj.pdfIn PDF document text
    • http://love-cosmetics.shop/hp_laserjet_p1006_driver_download_free3p5x5.pdfIn PDF document text
    • https://fokereja.weebly.com/uploads/1/3/1/8/131856005/mupuwoxalojola-gadizizadodosid-pizizoxed-sodobigosib.pdfIn PDF document text
    • https://gubagomokugexat.weebly.com/uploads/1/3/3/9/133988684/mununine.pdfIn PDF document text
    • https://sedarujewajoto.weebly.com/uploads/1/3/0/9/130968957/1081702.pdfIn PDF document text
    • https://retevewaluwur.weebly.com/uploads/1/3/4/6/134600892/zilurole-sebomejo-vavumoluf.pdfIn PDF document text
    • https://cdn.sqhk.co/tatudawo/fhbXhfM/download_game_head_ball_2_mod_apk.pdfIn PDF document text
    • http://bijedazilele.22web.org/43308328258.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wivufaw.epizy.com/iadc_wellsharp_kill_sheet.pdfIn PDF document text
    • http://tegemikewik.rf.gd/dovawutiginunojevubig.pdfIn PDF document text
    • http://magotabitujotu.rf.gd/66694083272.pdfIn PDF document text
    • http://rarasim.epizy.com/86097503835.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_off0000ddb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB1 5408 bytes
SHA-256: 6120d4dc1a799ae9abd20353e423c1d0f8ca1b01edc4e9ff622266d5d8e69092
font_01_sfnt_off0000effd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFFD 11060 bytes
SHA-256: f5c39edb1b7a0d08cc554136172c008bf7e7199d246a7ecb29e23be822e8e109