Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b4ffeda3dd61a58…

MALICIOUS

PDF

68.0 KB Created: 2020-11-11 00:30:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 558d0887cf56678632d5c5eec708496d SHA-1: c4c3477f5955f8277212d206d862b9f4c347d9d4 SHA-256: 5b4ffeda3dd61a588ff6f48986e04ab7f016508731e912f607eca41d15927b01
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafffi.ru/123?keyword=black+butler+episode+2+english+dubbed PDF link annotation
    • https://lujetuzamuja.weebly.com/uploads/1/3/4/3/134372728/xabovijapel_gojutunawug_deriwovegikeza_dirotifodupe.pdfIn PDF document text
    • https://nizesuvijeva.weebly.com/uploads/1/3/1/6/131607023/08cdda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367631/normal_5f8817f7b7f54.pdfIn PDF document text
    • https://nubawobadeg.weebly.com/uploads/1/3/4/1/134131997/zuxavebinibaro.pdfIn PDF document text
    • https://somotudodij.weebly.com/uploads/1/3/4/6/134699902/sigijajixuto-nulemam-vufazuda-demewojulopiwud.pdfIn PDF document text
    • https://genamimiwovem.weebly.com/uploads/1/3/1/6/131636881/losutoxi_jinapibemusa.pdfIn PDF document text
    • https://lotagixowila.weebly.com/uploads/1/3/1/1/131164100/gonisarogisabagudexo.pdfIn PDF document text
    • https://gemamiji.weebly.com/uploads/1/3/4/3/134372226/xaretavolaja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413236/normal_5fa88b3542737.pdfIn PDF document text
    • https://nugaridepi.weebly.com/uploads/1/3/4/4/134474671/xedafemapoxobika.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366028/normal_5f88add400536.pdfIn PDF document text
    • https://xesapidad.weebly.com/uploads/1/3/4/3/134346602/mumow_datup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413843/normal_5f989b4b57f90.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/1eb80e6c-4034-4f13-9b49-fe42eacf3d75/89595449308.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_off0000c832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC832 5720 bytes
SHA-256: fcb9ce31f9be1b341702bda29b740b0862cb37ced69932c7a60603bdae973946
font_01_sfnt_off0000db9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB9C 12004 bytes
SHA-256: e179a394b62225d87a961bebb6ccd788cfa73402934fff52de48f0c6b869fb31