Malicious PDF — malware analysis report

Static analysis result for SHA-256 28fe2f2c53fbe4e8…

MALICIOUS

PDF

64.6 KB Created: 2020-11-19 15:46:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ee8b95dc190d009ec16ef89e2553499f SHA-1: 577e0942330a29cda519aeb4c000bb3541131ba0 SHA-256: 28fe2f2c53fbe4e8e8b6a2c9ce9ca329f863cb565e202137e82aca5323bc7383
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URL pointing to 'trafftec.ru', which is likely used to host or redirect to a malicious payload. The document body, though heavily obfuscated, suggests a lure related to 'sport riding techniques' to entice users to download the file.

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://trafftec.ru/strik?utm_term=sport+riding+techniques+nick+ienatsch+pdf+download
    • https://cdn-cms.f-static.net/uploads/4450635/normal_5fa70b623f231.pdf
    • https://cdn-cms.f-static.net/uploads/4481273/normal_5fb6055862956.pdf
    • https://cdn-cms.f-static.net/uploads/4379355/normal_5f8ac886855c8.pdf
    • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/f045a886.pdf
    • https://cdn-cms.f-static.net/uploads/4418185/normal_5fa7ab454e22f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/59bb9e13-e01a-4401-bf8a-42d0ec289482/miwuforame.pdf
    • https://uploads.strikinglycdn.com/files/f2b97aac-9110-422b-b7fe-814d0d8b11d9/kritik_der_reinen_vernunft.pdf
    • https://uploads.strikinglycdn.com/files/b7a32f8e-c6a8-4f7b-b5ab-aad176a5f661/86208922358.pdf
    • https://uploads.strikinglycdn.com/files/7d665518-5c19-4f4d-a589-8f76e4e7959e/ps3_sacd_ripper.pdf
    • https://uploads.strikinglycdn.com/files/f65f3b9c-67e2-4c32-b229-ea781a94659d/jilobasaf.pdf
    • https://uploads.strikinglycdn.com/files/f69e3d15-8c72-4245-8a4c-10f34cb1ae27/rocaba_armor_bdo.pdf
    • https://uploads.strikinglycdn.com/files/624ec6e0-f9d7-4ac3-a9ed-b907a5d92703/tidotisuxopodiwibibasi.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bc7b.bin
b90d73b34bae886838aba3e9dd28bb801ac792a4eee360a0e1e485f9438dbe31		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBC7B 5800 bytes
font_01_sfnt_off0000d04a.bin
1dc1a0cddcb4570e06387c97e10679cbe6fe5d414ddb399f0d40a1331561c0c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD04A 10880 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.