Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0fb8675ef4c966f…

MALICIOUS

PDF

73.9 KB Created: 2021-03-04 10:34:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: c223b540c54a856d9a8e04e75c7cb32a SHA-1: 8bc78b7a3aeef1c07952cec0b5fd4487467e1dee SHA-256: a0fb8675ef4c966faada4c91e4624eea1cb16759a1aed11d0fcb1eec82109eb2
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL that, when clicked, leads to a domain associated with the lure. The document body, though heavily obfuscated, contains keywords related to the lure, suggesting a social engineering attempt to trick the user into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://ponafet.ru/award?keyword=tecumseh+10+hp+snowblower+engine+carburetor PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4420025/normal_5ff7a52074d64.pdfIn PDF document text
    • https://cdn.sqhk.co/tawavumazo/U4HijYG/box_packaging_design_software.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472774/normal_5fe5f86472cf7.pdfIn PDF document text
    • https://cdn.sqhk.co/nomuzali/hhKifat/mcdonald_s_breakfast_hours_on_sunday.pdfIn PDF document text
    • http://tijudozi.scienceontheweb.net/95107978271.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379236/normal_5ff7ff7f75ae7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502721/normal_6007b867003e1.pdfIn PDF document text
    • https://cdn.sqhk.co/biloriput/iib0r7n/42130328708.pdfIn PDF document text
    • http://jedomagisuw.getenjoyment.net/61955820460.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468268/normal_601304d8b966d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392193/normal_5fe851831196d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zesafemumibow.myartsonline.com/is_dominos_garlic_dip_ranch.pdfIn PDF document text
    • https://s3.amazonaws.com/vufuzewasi/98906428201.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/66430366325.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_off0000e30d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE30D 5720 bytes
SHA-256: d7713be11d9d57d7221797b817bc777ab3ab4d19a23826e46c290144bcb16062
font_01_sfnt_off0000f66d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF66D 10492 bytes
SHA-256: 2d42e282b21853d510c9ffd44a796167681b5cb4f25d181efeee973ccf0653b1