Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2d502faf5544707…

MALICIOUS

PDF

73.5 KB Created: 2020-11-22 13:13:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a54ab7558282d515713e7e7540f31d24 SHA-1: d3444c564d964d3ab3fd8c796e9f97e9408b17ef SHA-256: b2d502faf5544707dc721cc2c5565d04fa34de2e5733c10c9b11f70eb8eefdce
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 deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains text related to '6.5 creedmoor load data', suggesting a lure to entice users to click the malicious link.

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/123?utm_term=6.5+creedmoor+load+data+imr+4350
    • https://cdn-cms.f-static.net/uploads/4455916/normal_5fb8ee90ed5c5.pdf
    • https://cdn-cms.f-static.net/uploads/4376625/normal_5f8b2cb2a7546.pdf
    • https://cdn-cms.f-static.net/uploads/4366327/normal_5f8762d6385be.pdf
    • https://cdn-cms.f-static.net/uploads/4368735/normal_5f9e829213f56.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/3f1199c9-1b1f-4f10-b47c-c7dbd110ca0d/76765969440.pdf
    • https://uploads.strikinglycdn.com/files/1f2adb06-a0c5-45c5-8506-a5f9b2c793c8/12125959371.pdf
    • https://s3.amazonaws.com/tawovojo/30959656122.pdf
    • https://s3.amazonaws.com/zetare/51801255713.pdf
    • https://uploads.strikinglycdn.com/files/a5547a6f-b313-41f7-8cec-de8fbc3a9968/rerowusexabe.pdf
    • https://uploads.strikinglycdn.com/files/b05b92d1-ad9c-435c-a580-b7a18a2a6fbf/princes_of_the_apocalypse_full_f.pdf
    • https://s3.amazonaws.com/wekibik/to_kill_a_mockingbird_final_test_with_answers.pdf
    • https://s3.amazonaws.com/wiwamoxamo/zilixuvu.pdf
    • https://uploads.strikinglycdn.com/files/2b40a368-aed3-443b-bb19-e51a1ccb11c7/ejercicios_de_signos_de_puntuacion.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_off0000e235.bin
36b99e188d4e04234c259d5e001dc7ba51a3dc249f2cae6c1997e179580f2d41		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE235 5516 bytes
font_01_sfnt_off0000f4ed.bin
11229aff9c1da126a5d4a665da292c38350b263e2421c02709d56a2910cf92c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4ED 10748 bytes

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