Malicious PDF — malware analysis report

Static analysis result for SHA-256 79312ad18b1d9cb8…

MALICIOUS

PDF

47.1 KB Created: 2020-10-09 06:09:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 12acb13638263e16e0decefc0e089133 SHA-1: 132583fc0c8f6aed7f16419f862488be115661fc SHA-256: 79312ad18b1d9cb8ab827c76e7db78db6f3283c649307a1f63e6ef31e616c7c0
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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://ggtraff.ru/strik?keyword=matricom+midnight+mx2+firmware In PDF document text
    • http://gexifonov.selinachustudio.com/uploads/1/3/1/1/131164250/05cc8c1.pdfIn PDF document text
    • http://files.elizabethkelleylaw.com/uploads/1/3/2/8/132814123/3113470.pdfIn PDF document text
    • http://files.danhegstad.com/uploads/1/3/1/3/131378950/ea9a89e56256f.pdfIn PDF document text
    • http://files.monkeybackart.com/uploads/1/3/0/7/130775759/8828573.pdfIn PDF document text
    • http://zidan.jefflavoie.com/uploads/1/3/0/7/130739173/sapif_tetimex_xovesusixapopa.pdfIn PDF document text
    • http://files.butteswcd.org/uploads/1/3/0/7/130739573/e338a.pdfIn PDF document text
    • http://files.lefemmenikita.com/uploads/1/3/0/7/130776423/kowasim.pdfIn PDF document text
    • http://jixod.coldaston.com/uploads/1/3/1/6/131637352/sonitepa.pdfIn PDF document text
    • http://files.dywfineart.com/uploads/1/3/1/4/131438460/de5f7c07d612.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/fc0661fd-67bb-4613-b640-f0b0fbc71b97/tasinasapafu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/baa6b2b0-7455-46f0-bea4-445c6ba2acdb/43137518978.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cb2b16f-087f-4416-bd1d-bc6c246f1489/41507756877.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4d230e7-1ad7-4505-9aa1-87746dde1744/43420186900.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ced8144-7322-4213-84a1-aa87284dbb79/wegagenur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a5b28a6-de70-43f5-ac03-9ceb7e506338/zojezoboxixinog.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_off00007064.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7064 5520 bytes
SHA-256: ed806b8f243afccc92bf7381c9850ed0a421da35e5a467112ac65481766242d4
font_01_sfnt_off00008327.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8327 14088 bytes
SHA-256: d9a2e2f407f80eeb9d96f3b9ff5d12ced170e6704a2bec4f5062b428975aea94