Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9a98f301982f84d…

MALICIOUS

PDF

68.4 KB Created: 2021-02-20 06:37:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 922cc6026304987a44a006ad93ff6fc9 SHA-1: b5c29a11fa48f9bfdc95317688ade0f475efdb12 SHA-256: c9a98f301982f84d80b217bc4da3c3a65f3967e118085b97795a7b8674e7b3bc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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/wix?keyword=graber+bike+rack+setup PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4469831/normal_5fcf9c2b0bf9a.pdfIn PDF document text
    • https://cdn.sqhk.co/totafeta/f6WgdPB/miracle_in_cell_7_netflix.pdfIn PDF document text
    • http://karaulovlife.site/guvipivewom3eb54.pdfIn PDF document text
    • https://cdn.sqhk.co/sigagegijej/iWNsvif/lego_ninjago_golden_dragon_instructions.pdfIn PDF document text
    • http://artdebug.site/pixuderirgaqt.pdfIn PDF document text
    • https://cdn.sqhk.co/sopiloroda/dt6geid/5060098905.pdfIn PDF document text
    • http://ig-soft-team.com/99699767332jmo5a.pdfIn PDF document text
    • http://zesamoa.online/situt7innb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413850/normal_60145826e7b99.pdfIn PDF document text
    • https://cdn.sqhk.co/fapulatonupe/he0Khgh/s._o._l_stone_of_life_ex_mod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368951/normal_6025e12433330.pdfIn PDF document text
    • https://cdn.sqhk.co/fisejadiruw/je3324e/brick_breaker_classic_game.pdfIn PDF document text
    • https://cdn.sqhk.co/desogepupema/ijhbJha/bipufazozurax.pdfIn PDF document text
    • https://cdn.sqhk.co/gasosivifug/jg51O4X/46627236892.pdfIn PDF document text
    • http://eglo.club/arenal_volcano_costa_rica_zip_linec05we.pdfIn PDF document text
    • https://cdn.sqhk.co/tamurikubol/icha7if/70382993579.pdfIn PDF document text
    • https://cdn.sqhk.co/binuwaxe/vcdgduA/champions_cup_soccer_michigan.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_off0000d072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD072 5128 bytes
SHA-256: b814e7b3a6d1a7cb1450c418eed4dd7f556a9c3694bbabeb3fc20eb8de035bca
font_01_sfnt_off0000e1f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1F7 10164 bytes
SHA-256: 20ef835574eddfeb999730994d842641bcfbf0e8d2a9850bde3b33564c2cb856