Malicious PDF — malware analysis report

Static analysis result for SHA-256 aefa31ecea832a06…

MALICIOUS

PDF

64.9 KB Created: 2020-12-02 19:07:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: df2b228e756276ae91e999a9158d0816 SHA-1: d949db89dbcd57b4e26973afc488add30c50300c SHA-256: aefa31ecea832a06c114f6f16d2b5986df95213433b5a3602af1d033d9db57d4
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'trafftec.ru', which is likely part of a phishing or redirection scheme. The document body, though heavily obfuscated, suggests a lure related to Bose QC25 headphones, aiming to trick users into visiting the malicious URL.

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/aws?utm_term=bose+qc25+android+vs+ios
    • https://cdn-cms.f-static.net/uploads/4384307/normal_5f984640f13d8.pdf
    • https://cdn-cms.f-static.net/uploads/4373526/normal_5faad64490583.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/dusubonifu/maths_exercises_for_year_1.pdf
    • https://s3.amazonaws.com/xabalaru/dopoluxowerobaris.pdf
    • https://uploads.strikinglycdn.com/files/05f29e71-ceeb-4469-946a-a0e6d78cd66a/36616353787.pdf
    • https://s3.amazonaws.com/nigimul/62907555832.pdf
    • https://s3.amazonaws.com/tirimofufemukat/roditarusazekoleloda.pdf
    • https://uploads.strikinglycdn.com/files/39bc54cb-2dcf-4ee0-ba1d-5de44f3a7dd6/53075134080.pdf
    • https://s3.amazonaws.com/kavitokolezub/21451903369.pdf
    • https://uploads.strikinglycdn.com/files/16b582d0-51f6-4651-bc83-4fcd1888e76e/tefogatud.pdf
    • https://s3.amazonaws.com/xuxifuzituwu/answers_lyrics_charlie_cunningham.pdf
    • https://static1.squarespace.com/static/5fc5d95bbdb33045eee4110e/t/5fc63506173fb5383b76d3d5/1606825225925/zewuse.pdf
    • https://uploads.strikinglycdn.com/files/40d46de4-7b17-4d20-9111-d99c87d2c38f/xupimorifo.pdf
    • https://uploads.strikinglycdn.com/files/078c1192-2cea-4438-90a3-c6e9c35ff1ea/architectural_drawing_revision_stand.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_off0000bf37.bin
6f04f92fd1d7309142bfd09f40a6afb519ac1765a082c6df9521f45ee60e0051		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBF37 5392 bytes
font_01_sfnt_off0000d1ae.bin
b1a28e517a574a3fb812aa495a1b3cad5e38432fc75962a8f7e95a7dda9a463c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1AE 10972 bytes

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