Malicious PDF — malware analysis report

Static analysis result for SHA-256 704f520f048b1f83…

MALICIOUS

PDF

77.0 KB Created: 2021-03-11 00:09:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7298550aef8a9ba3d3a4efd263b92f15 SHA-1: 85517ae9b9f658c45510e7695708a44a3ab8991f SHA-256: 704f520f048b1f83a5e0280f6349edaf88c4e633de22e637d8295c26aca418db
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://seumenha.ru/award?keyword=haemophilus+species+pdf PDF link annotation
    • https://cdn.sqhk.co/vuramufef/RJ4wnia/14238700487.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412588/normal_5fdf0895e891f.pdfIn PDF document text
    • https://dokegofixak.weebly.com/uploads/1/3/0/8/130873830/koromoxexemiwizof.pdfIn PDF document text
    • https://folutiniku.weebly.com/uploads/1/3/1/8/131871586/wupufe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403131/normal_603fe7c552df6.pdfIn PDF document text
    • https://cdn.sqhk.co/tevosenijosu/jfUxjav/bukabage.pdfIn PDF document text
    • https://cdn.sqhk.co/kogewole/ha00sQ8/uphill_rush_bike_game_4.pdfIn PDF document text
    • https://givodevivunafa.weebly.com/uploads/1/3/1/8/131871579/winetazepuwono.pdfIn PDF document text
    • https://fitabidik.weebly.com/uploads/1/3/0/7/130776693/xevima-pixezode.pdfIn PDF document text
    • https://sozagigojo.weebly.com/uploads/1/3/1/4/131454883/ff9007c.pdfIn PDF document text
    • https://libesomed.weebly.com/uploads/1/3/4/9/134904451/7386274.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419003/normal_60391b8d89aa4.pdfIn PDF document text
    • https://vedudogekikusiw.weebly.com/uploads/1/3/1/1/131164168/2598529.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://bb74f61c-7045-47bf-9a7e-968101ee373e.filesusr.com/ugd/81ef4b_d693881ee5bb4c5d95ac6bfabe10a407.pdf?index=trueIn PDF document text
    • https://5a1138df-423b-4a5d-a7c7-36223740754e.filesusr.com/ugd/a72fa8_9ce4c8f38f964e52a67c05788dccd830.pdf?index=trueIn PDF document text
    • https://737bf953-b780-43bc-8af0-312ed5328a40.filesusr.com/ugd/017c44_3e0613c3d2ee4aeab00cd529987b93a0.pdf?index=trueIn PDF document text
    • https://204833c8-abda-4421-8777-5048ee7dd919.filesusr.com/ugd/e30b7a_92ca3c65c269416ab49e6dbbd18ee010.pdf?index=trueIn PDF document text
    • https://4cf6c2b4-cd84-4b73-83b1-bf7f441162b2.filesusr.com/ugd/e50c99_c9c95028b46f4685b13cdf68e5240aa1.pdf?index=trueIn 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_off0000f08a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF08A 5260 bytes
SHA-256: 8df781ae50adfc11166d0514bfe61503b65d1da3d62d7f13b3ba0c84f6b85de8
font_01_sfnt_off0001024b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1024B 10924 bytes
SHA-256: 9c3530953963b2929bf4863b3bb00709122e184aa9f5bdd022d17d57ac63f898

Open this report in the interactive analyzer, or submit your own file for analysis.