Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0152dba7d67eec4…

MALICIOUS

PDF

58.4 KB Created: 2020-12-02 19:07:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8757b26f8c8c0bbaf014b05921ae9f4 SHA-1: 9e36792a060a31212782a876ad0d43c156b8ec5c SHA-256: c0152dba7d67eec4331ed20c4261db12138b9faffdedbc7804cbd76276649314
94 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 phishing or trojan payload. It contains an embedded URL pointing to 'trafftec.ru', which is likely part of the lure to a malicious site. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest an attempt to redirect the user to a compromised or malicious resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8068

Heuristics 3

  • 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
  • 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://scripts.sil.org/OFL

Extracted artifacts 1

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

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