Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbad6fd13508c95e…

MALICIOUS

PDF

72.0 KB Created: 2021-02-19 16:19:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9b2351cde542f1b43289240e47c5d6f3 SHA-1: 56fefa5bdf3e9a4c183cd92a23eaa8f57eeafc46 SHA-256: bbad6fd13508c95e866532bf56c3562f70343049c151fe29d447eba1fef2307f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/wix?keyword=the+last+jew+of+treblinka+pdf PDF link annotation
    • https://nitevafatuva.weebly.com/uploads/1/3/4/8/134872456/61fb40e82.pdfIn PDF document text
    • https://cdn.sqhk.co/janonaset/phbOq2o/bufajugasotakudadawilufib.pdfIn PDF document text
    • https://guduzuzej.weebly.com/uploads/1/3/1/6/131606672/mujazutoge.pdfIn PDF document text
    • http://unonatur.space/685068446797kkuh.pdfIn PDF document text
    • http://koteyarn.moscow/mibotorawal2yz6v.pdfIn PDF document text
    • https://cdn.sqhk.co/raninogozo/biaibGx/19374681377.pdfIn PDF document text
    • https://rebumazezip.weebly.com/uploads/1/3/4/8/134860465/2211122.pdfIn PDF document text
    • http://comforfemj.fun/are_disney_world_doing_free_dining_in_2021h472k.pdfIn PDF document text
    • https://sekitajed.weebly.com/uploads/1/3/1/3/131383533/53a57c.pdfIn PDF document text
    • https://novebeze.weebly.com/uploads/1/3/3/9/133997241/jaxoxajowuvudaxex.pdfIn PDF document text
    • http://voztrans.ru/55677024328xhy41.pdfIn PDF document text
    • https://cdn.sqhk.co/zabitokepum/5MigUhj/hydro_dipping_gun_stock_at_home.pdfIn PDF document text
    • https://cdn.sqhk.co/xumelesep/X4heCde/wabikexotipazawivefolev.pdfIn PDF document text
    • http://funseeds.site/641064471068kwky.pdfIn PDF document text
    • http://barberking.best/pavubulaw5d3c4.pdfIn PDF document text
    • https://bewogataxatux.weebly.com/uploads/1/3/2/6/132695278/kuxifoxugakom.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_off0000de30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE30 5452 bytes
SHA-256: 059a6548b7e01dbde5cac8b98639dc87174d5d030c8a0d02f4f2ec8517b9fe40
font_01_sfnt_off0000f0c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C1 10136 bytes
SHA-256: ee2513d1f06f167b8d81d23169e345c51c56b363240f2f09ae6ff42c0352c31b