Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e0f53f047db04d8…

MALICIOUS

PDF

63.8 KB Created: 2020-11-10 19:57:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66ecbfe526bd3674a47f8a9f2cba014b SHA-1: 1e8e5a41b0010f18be376b8dc1f75d3af2f0a932 SHA-256: 5e0f53f047db04d810f6d8daae73109e237284e559c4d72dd364bfeaff470ee5
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 high likelihood of malicious intent. It contains an embedded URI pointing to 'traffine.ru', which is suspicious and likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains keywords related to 'dying to be thin video questions', 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://traffine.ru/123?keyword=dying+to+be+thin+video+questions
    • https://cdn-cms.f-static.net/uploads/4450733/normal_5fa2ad99c6670.pdf
    • https://cdn-cms.f-static.net/uploads/4403936/normal_5f9ec8e3c143e.pdf
    • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/7714656.pdf
    • https://cdn-cms.f-static.net/uploads/4371497/normal_5f8908e291683.pdf
    • https://nokifijipuf.weebly.com/uploads/1/3/4/3/134305843/3639192.pdf
    • https://cdn-cms.f-static.net/uploads/4393751/normal_5f8eb4e8db72a.pdf
    • https://cdn-cms.f-static.net/uploads/4408343/normal_5fa11c0983b52.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/a7c5119b-4322-4a62-ab44-8cdd760ec5e1/68332208537.pdf
    • https://uploads.strikinglycdn.com/files/fbf7a2f1-f477-4d33-84d7-0a3b2fbf01a5/15782372921.pdf
    • https://uploads.strikinglycdn.com/files/f4b96c22-b01c-44d7-be09-70672fe9f927/guitar_finger_exercises_for_beginner.pdf
    • https://s3.amazonaws.com/fefurorobumi/acsm_health_related_physical_fitness_test.pdf
    • https://uploads.strikinglycdn.com/files/5fdf0bf2-953f-4215-8263-3b86475a6209/5811093605.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_off0000bcff.bin
f0d80ee7a2101f33fdb1922ceb2915be1487ee7ae5e80c040295c1eead36dabe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBCFF 5176 bytes
font_01_sfnt_off0000cea5.bin
13ed63f337302cfba219b84fe4f4e31472605ca9fb235f4256236bcdf1c4ed75		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA5 10868 bytes

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