Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c62204f7322e6a…

MALICIOUS

PDF

42.5 KB Created: 2020-10-07 12:14:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-25
MD5: 49489036332a142821f7681c726ffcf6 SHA-1: 6bbcf541f0c683d4bc5e797e04db48a54e3d33fb SHA-256: a9c62204f7322e6a281d5d4fc405d5b7c76ede03961dffe28b3930bf361bede0
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://gettraff.ru/strik?keyword=general+knowledge+questions+and+answers+pdf+pakistan In PDF document text
    • https://site-1039954.mozfiles.com/files/1039954/21739380512.pdfIn PDF document text
    • https://site-1043115.mozfiles.com/files/1043115/9437144938.pdfIn PDF document text
    • https://site-1039161.mozfiles.com/files/1039161/gowizewuxomugisetekeri.pdfIn PDF document text
    • https://site-1039153.mozfiles.com/files/1039153/18443089185.pdfIn PDF document text
    • https://site-1038511.mozfiles.com/files/1038511/verukepejavusom.pdfIn PDF document text
    • https://site-1043494.mozfiles.com/files/1043494/jamamatenizawepatorufaxab.pdfIn PDF document text
    • https://site-1039892.mozfiles.com/files/1039892/biguvezabavifuxijipogar.pdfIn PDF document text
    • https://site-1037037.mozfiles.com/files/1037037/33683208801.pdfIn PDF document text
    • https://site-1038344.mozfiles.com/files/1038344/falesosinegetinagufivozi.pdfIn PDF document text
    • https://site-1037207.mozfiles.com/files/1037207/kamerixedid.pdfIn PDF document text
    • https://site-1037011.mozfiles.com/files/1037011/molidom.pdfIn PDF document text
    • https://site-1038738.mozfiles.com/files/1038738/libiropoze.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006614.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006614.bin)
    • 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_off00006614.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006614.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6614 5520 bytes
SHA-256: eec09cf65d5e710afcfc5b263bb95bea9cdc7b802f4e118bff788a844771811e
font_01_sfnt_off000078fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78FA 10572 bytes
SHA-256: 4586f5e08a8a43ab90a5a90aa0f1528fe4c7b240b27599455f1bfe6b4b71df63