Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bcdfbcd1e52ce5a…

MALICIOUS

PDF

74.1 KB Created: 2021-01-15 03:16:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49549f7daab460bdc418fc21921f6f1c SHA-1: 91f6055d5ac796fda2f795edc73b650f25d5c75a SHA-256: 9bcdfbcd1e52ce5a06fbeca3fa2ed0ab9d72e8b92177b32ed04bb81d7400435e
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier. It contains an embedded URL pointing to 'trafftec.ru', which is likely used to deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to recipes, aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=crockpot+dressing+paula+deen
    • https://static.s123-cdn-static.com/uploads/4387031/normal_5fff09a8518ec.pdf
    • https://cdn-cms.f-static.net/uploads/4374545/normal_5faaa97181ca8.pdf
    • https://cdn.sqhk.co/sojowidaz/jEWidjh/3588280288.pdf
    • https://static.s123-cdn-static.com/uploads/4450728/normal_600080c5bb2ad.pdf
    • https://gipulafu.weebly.com/uploads/1/3/4/4/134442702/wexewozosid-bulorid-jufosexofajed.pdf
    • https://zawurufaxi.weebly.com/uploads/1/3/4/8/134861846/wubutubibav.pdf
    • https://cdn-cms.f-static.net/uploads/4460060/normal_5faddfce46643.pdf
    • https://static.s123-cdn-static.com/uploads/4393502/normal_5ffe55a3c75a1.pdf
    • https://cdn.sqhk.co/jarebomu/jjidYjd/46384439341.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jojitagifuva/fevese.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_off0000e614.bin
de59a0d5f57ff5be28f4a20fa46ab9f6d36240b0e8bce73829b36b3890a6c9e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE614 5212 bytes
font_01_sfnt_off0000f7dd.bin
c713fa5a8d5e16b41676ef27498d06ea8af890cf9a169b2596c1b675768a7f8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7DD 10800 bytes

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