Malicious PDF — malware analysis report

Static analysis result for SHA-256 84e0bb517af10c8f…

MALICIOUS

PDF

65.3 KB Created: 2020-10-01 13:04:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d803fdcc26d0f6e3076dbf74a127d49e SHA-1: 5582a0889127327731e35defd6d2101a89c3830b SHA-256: 84e0bb517af10c8fa4e25814388ca9c2137771b5f0a6ee5cfe321886ffd7cd35
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link farm designed to redirect users to various PDF download sites, one of which points to known malicious redirector infrastructure. The document body also contains the URL for the malicious redirector, suggesting an intent to trick users into downloading malware disguised as game-related PDFs. The ML classifier strongly supports the malicious verdict.

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://gettraff.ru/strik?keyword=warhammer+40k+astra+militarum+codex+pdf+download In PDF document text
    • https://site-1037261.mozfiles.com/files/1037261/8989506560.pdfIn PDF document text
    • https://site-1037274.mozfiles.com/files/1037274/81858177822.pdfIn PDF document text
    • https://site-1036760.mozfiles.com/files/1036760/25419335728.pdfIn PDF document text
    • http://files.puptown.org/uploads/1/3/0/7/130739993/xifov_piluzukixoxudi.pdfIn PDF document text
    • http://savut.creativefoodart.com/uploads/1/3/0/7/130776299/f686b.pdfIn PDF document text
    • http://files.gcpageants.com/uploads/1/3/1/4/131454035/08a60468c35.pdfIn PDF document text
    • http://files.caliraeshautespot.com/uploads/1/3/2/7/132741029/lademonodubu_wabuniparinebex_genofepuj.pdfIn PDF document text
    • http://mujarebe.soulfoodstudios.org/uploads/1/3/0/9/130969077/2795806.pdfIn PDF document text
    • http://files.voltaglass.com/uploads/1/3/2/3/132303083/vipawoto_mogetoruf_lulopimig_pikazidon.pdfIn PDF document text
    • http://files.garrettru.com/uploads/1/3/0/8/130814631/jaxiwam.pdfIn PDF document text
    • http://files.miciqac.com/uploads/1/3/1/3/131383541/kozita_dizagewogewifa_kapuvisiv_dozodajutukela.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b1bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1BF 5744 bytes
SHA-256: 3dab37344be4327f1319ca828df5f4a65af6b6412432f61aaf2fe723115de9d1
font_01_sfnt_off0000c548.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC548 10644 bytes
SHA-256: 4a000938f047dfe653c35d2cff1ef9f6b3a8ac55d9a4cdcaf1dc612c78440003
font_02_sfnt_off0000e9c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C7 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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