Malicious PDF — malware analysis report

Static analysis result for SHA-256 7978d75c0691c433…

MALICIOUS

PDF

43.4 KB Created: 2020-11-03 06:10:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: b46797df70205c65be5f58563c527c07 SHA-1: 17dde653a7b9094844e64978ace571dca6b4c86a SHA-256: 7978d75c0691c43363ec94c444b27e5eaaaaa53a263b76e8c7b0b4a0fbd17572
94 Risk Score

Malware Insights

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

The PDF contains an embedded link to a known malicious redirector, https://gettraff.ru/strik?keyword=live+tv+channels+ptv+sports. This indicates the document is designed to lure users to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of malicious URLs is sufficient evidence for this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=live+tv+channels+ptv+sports In PDF document text
    • https://wipomozexabezi.weebly.com/uploads/1/3/0/7/130776841/jujajevuvolowojo.pdfIn PDF document text
    • https://latijivetazemor.weebly.com/uploads/1/3/0/7/130775002/5217537.pdfIn PDF document text
    • https://tebefatudu.weebly.com/uploads/1/3/4/3/134329870/2f5a1a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370264/normal_5f99602737505.pdfIn PDF document text
    • https://bijifejutumaxob.weebly.com/uploads/1/3/1/3/131381781/e655b765251b.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://uploads.strikinglycdn.com/files/8b61ea34-d1b7-49ee-8f31-971494c71088/arctic_king_15000_btu_air_conditioner_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawexawinogad/39645779068.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2c761ff-73dc-4d0f-8574-f7297be0b662/99006354725.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c00c82f-c7c8-4447-86fd-f9e61be07ace/madodobe.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E96 4812 bytes
SHA-256: 6bb1f1b3f38923e95ea0feb1de33bd8dbd7950e2bf3114ecd8a3c5a316bbe92a
font_01_sfnt_off00006edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EDB 10612 bytes
SHA-256: 11dfff6eeae6c6dd4edc683bb5a844144744c24edb1add3a370eee257413e9da
font_02_sfnt_off0000934a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x934A 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c