Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8972df20f9ee58…

MALICIOUS

PDF

59.8 KB Created: 2020-10-20 09:15:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 26bd5a9061e965420075aa6ad648fe4b SHA-1: af57269e770b0a6168931a571e7e633bac64fa26 SHA-256: 5d8972df20f9ee587f7d2320844fdf9bc7ca660f6d5fc0be9c079192b636d275
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.me/123?keyword=b.sc+2nd+year+math+book+pdf In PDF document text
    • https://nukubutoti.weebly.com/uploads/1/3/2/3/132302768/vebowodavajuva.pdfIn PDF document text
    • https://kutenamig.weebly.com/uploads/1/3/0/7/130740069/zufimudugagab.pdfIn PDF document text
    • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/xivutimumarumanede.pdfIn PDF document text
    • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/dafakuv.pdfIn PDF document text
    • https://gowiwoniba.weebly.com/uploads/1/3/1/8/131857243/fa4736599.pdfIn PDF document text
    • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/batapenafi-dajijotaveweva-sekomerid.pdfIn PDF document text
    • https://leruzifu.weebly.com/uploads/1/3/2/3/132302941/rexuwatuxubite.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368485/normal_5f8884fd11f3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375352/normal_5f8e58ee4c058.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373749/normal_5f8c16577c510.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365661/normal_5f898049969f2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/9326fd3a-fb29-48c4-a72d-3d944c8121a8/ncaa_march_madness_live.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a4e5cac-aa2e-41b1-8501-77105e3859af/15073656940.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/652df191-67c1-488f-8656-79aa35fdfd4c/jaruluporekarokozif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90df985d-28cd-480d-8b6f-b55345594f9d/64317019152.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60fc1060-e580-46b8-9dbf-55b9bcf0dff8/88325161079.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3ed47cb-2cca-407c-acc9-63a7eecf1461/26587165217.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/775ba02b-2a50-4f3d-af7b-566b4bae33ef/guwijiduf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/304bdff7-128c-4b2d-b202-28640c620288/76117875529.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49e88516-1d79-4fc8-81c3-3026243ef0e8/lunutogonoxigepamiki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e881e76-c635-496b-a798-793be3c3a622/40799814176.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ede.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDE 5884 bytes
SHA-256: e93432f25c26c9d55a4e1b3d068dd609984ede7847727c595755d109f96471aa
font_01_sfnt_off000092b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92B5 3204 bytes
SHA-256: 55deeea3a93518db721a97da0d8f9359fab86ec4add728a48e55287c41c27800
font_02_sfnt_off00009fa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FA5 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_03_sfnt_off0000a832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA832 10516 bytes
SHA-256: 4bfec57abf94f78d80986bf1dfa6cca8b5ad90da2cee00bf1cd921e9a51ed945
font_04_sfnt_off0000cc1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC1C 16068 bytes
SHA-256: 3b1167557c0500c78008053c404847a906c4d495ef15adec583fc97e76626070

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