Malicious PDF — malware analysis report

Static analysis result for SHA-256 cff2984edde55c22…

MALICIOUS

PDF

60.2 KB Created: 2020-11-10 18:41:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 98630e8021588ee8b4bb107f043d5b60 SHA-1: bc342525960717146512c869ee1a6f8f4a3f2ee9 SHA-256: cff2984edde55c227c6cce6ae0deebb10ca5627dd99a2edd574ccd9c7b44f298
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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 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://traffnew.ru/123?keyword=squealer+propaganda+quotes+in+animal+farm PDF link annotation
    • https://gokaveruziniva.weebly.com/uploads/1/3/4/5/134580144/084d34d0c9f.pdfIn PDF document text
    • https://farukipem.weebly.com/uploads/1/3/4/4/134473356/paguxig.pdfIn PDF document text
    • https://wogijelagorezu.weebly.com/uploads/1/3/4/0/134096035/7951534.pdfIn PDF document text
    • https://vabepazepa.weebly.com/uploads/1/3/4/5/134596671/8b0a45aaf68082b.pdfIn PDF document text
    • https://diziwupufetut.weebly.com/uploads/1/3/4/4/134477772/c85cb264b5a2.pdfIn PDF document text
    • https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/dususoxepebo-besusa-ruwasuvukedef-jomar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365621/normal_5f87332532740.pdfIn PDF document text
    • https://munizifazu.weebly.com/uploads/1/3/4/3/134354015/tetazedi_fifuv_pafajesaloju_jidesozopupo.pdfIn PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/lafovajapikigo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c625f018-e545-4b09-8410-39e71488469f/monsters_inc_mr_waternoose.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b23603f-d80f-4f1c-a8b9-7b0257977c10/17131254928.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_off0000b0cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0CB 5592 bytes
SHA-256: 1a834ad2d6ddf08444d7adae65bef5328a3f16087c67058eee08d9149b637be1
font_01_sfnt_off0000c3b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3B2 9524 bytes
SHA-256: 40036aced98d54174d59eeac688ea5e6c0cdbb5fa5633bb18a8055ee97191fde