Malicious PDF — malware analysis report

Static analysis result for SHA-256 98fa57174b4341be…

MALICIOUS

PDF

71.9 KB Created: 2020-12-17 23:07:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-08
MD5: 21f7099c2c3972ad2561856ce6f5debd SHA-1: 6673e86c252791104eb06dbff1e076fb1e1ae71c SHA-256: 98fa57174b4341be00d5ec4cb7b50d71021e00724106561cfd4a849dcc4451b7
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://ggtraff.ru/123?utm_term=card+table+and+chairs+home+depot In PDF document text
    • https://static.s123-cdn-static.com/uploads/4482009/normal_5fc590d124854.pdfIn PDF document text
    • https://detaxotipag.weebly.com/uploads/1/3/4/7/134730838/6269210.pdfIn PDF document text
    • https://zosopomejunij.weebly.com/uploads/1/3/4/0/134040517/wepupe.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/f5d445.pdfIn PDF document text
    • https://wogalipa.weebly.com/uploads/1/3/4/3/134316604/jitofibik.pdfIn PDF document text
    • https://s3.amazonaws.com/lusabifef/korewasekivisudaluzowovan.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000d963.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000d963.bin)
    • https://uploads.strikinglycdn.com/files/1a9ee2cf-e7bb-4bb3-bb57-85028b4fe19e/johnny_cash_the_man_comes_around_lyrics.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2d700ea4a794d5651c29e/t/5fc4a9551972c46e3c3141f0/1606723927563/xuvanipar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97d39b70-bb70-48dc-9be4-92d62a5bae35/manual_grout_removal_tool.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5bb211f-8e87-4ab2-a1a7-a733918c9b35/nikon_d3400_manual_mode.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4e86055-4514-47ad-bad9-f143bb6cd5d4/tidoguvarenijivo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2d442e9fc3622d52eb2cd/t/5fc75f3ae2dcb1274dee2a00/1606901563038/ralaposava.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 extracted file (font_00_sfnt_off0000d963.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d963.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD963 5356 bytes
SHA-256: 7faaaa594e8a067e6a65c718e851563f179fdbc80be91f1a4cb8cb85bfb6afb2
font_01_sfnt_off0000eb61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB61 11596 bytes
SHA-256: 7a0f443cda4387d8a824d1658f3d4e256ce609b9230965f3cef3198e84876ac5