Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9b64ff8ed30aa56…

MALICIOUS

PDF

49.5 KB Created: 2020-09-18 01:41:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03c21e7b567c015a67dd39957722a6ce SHA-1: 2b567286fb22bdb5e6f42fa17e52109416886b67 SHA-256: b9b64ff8ed30aa56fa23e2714ffb475675aba81e17a9aa7c0e9e063b3026ce0e
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, which is a common tactic for phishing and malware delivery. The PDF also contains a large number of embedded links, suggesting a link farm or SEO poisoning attempt to increase visibility. The ML classifier strongly indicated maliciousness. The document body contains the URL that is likely intended to be clicked by the user.

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.link/wix?keyword=destiny+2+explosive+payload+pvp In PDF document text
    • http://files.cls-asia.net/uploads/1/3/0/8/130814717/suvazo.pdfIn PDF document text
    • http://vofogameg.caring-hands-daycare.com/uploads/1/3/1/3/131378850/nexalolojexivog-lelijukudekabo.pdfIn PDF document text
    • http://fowojuluz.kz-intl.com/uploads/1/3/2/6/132682233/90b46fd.pdfIn PDF document text
    • http://pesalopi.ballengeefarm.com/uploads/1/3/0/9/130969423/4014e501d8002.pdfIn PDF document text
    • http://files.kylamitsunaga.com/uploads/1/3/2/6/132681558/tebiwi.pdfIn PDF document text
    • http://wurevarog.yez.dk/uploads/1/3/1/6/131637284/84f5813e548b.pdfIn PDF document text
    • http://files.promival.com/uploads/1/3/0/7/130775784/743b217b9c09ab7.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
    • https://e3dfb691-0566-4a28-84b5-1dcabb8ccc75.filesusr.com/ugd/a640e9_396d0013f7af4e5b974881fab661f329.pdf?index=trueIn PDF document text
    • https://b8ae843b-45f8-4438-8953-f604cc738f2e.filesusr.com/ugd/cbe7f7_dfde3869ffd946699bd6a01bf701b868.pdf?index=trueIn PDF document text
    • https://3236298b-d712-4de0-b846-32e22313cc33.filesusr.com/ugd/0aab01_9621270990f640018123dbfbbf5ced5f.pdf?index=trueIn PDF document text
    • https://daff48d6-9216-47b9-9bbb-4650b9bab3cd.filesusr.com/ugd/d94ae5_40d847360ca5499cb933bf688acf2c31.pdf?index=trueIn PDF document text
    • https://e0417292-3e14-41e7-b614-2aa3b996ebaf.filesusr.com/ugd/76de1a_c05edc7c39f44ddea026cae667e45fa3.pdf?index=trueIn PDF document text
    • https://f66cb848-fa59-4272-896b-7a1920f8dc6c.filesusr.com/ugd/28146e_de47f3c3d3a54f3787703d918e85dce1.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

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_off00006e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E49 5004 bytes
SHA-256: cea972d03b4e8104b199be368654b1223f51fc48bc2189ead4d7510411e6155b
font_01_sfnt_off00007f6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F6B 13652 bytes
SHA-256: 35eb8b674d4cedea7687c39323535eb72f38fe0f8c24dcf215971d535bae2aea
font_02_sfnt_off0000ab04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB04 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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