Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6632860227d9485…

MALICIOUS

PDF

64.1 KB Created: 2020-11-13 08:09:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d2bb9361d9e7b219a110172b83f77daf SHA-1: 51ea4ca4e4e61add942b7fde455e9d93e923afd8 SHA-256: e6632860227d948514d90c305a1f598a65f0b30f2a9e96cc78032e3f3586c7c3
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 'traffking.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create malicious PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffking.ru/123?utm_term=guts+raina+telgemeier+pdf+free
    • https://cdn-cms.f-static.net/uploads/4455180/normal_5fa1dfdc9af15.pdf
    • https://cdn-cms.f-static.net/uploads/4414486/normal_5fadb7e353893.pdf
    • https://cdn-cms.f-static.net/uploads/4411245/normal_5f9b86ce2e8a0.pdf
    • https://cdn-cms.f-static.net/uploads/4367938/normal_5f9796b219274.pdf
    • https://cdn-cms.f-static.net/uploads/4390069/normal_5f92af22a9c48.pdf
    • https://cdn-cms.f-static.net/uploads/4366308/normal_5f886b7e36711.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/11f67a28-4166-4527-98ff-f91ed66eb116/baltimore_sunpapers_death_notices_obituaries.pdf
    • https://uploads.strikinglycdn.com/files/8c974c0d-06cb-4b8c-ae60-9caece0be069/mackie_802vlz4_manual.pdf
    • https://uploads.strikinglycdn.com/files/323f4ef4-b4d1-48f7-971a-11cfdb184afe/guitar_hero_3_songs_cheat.pdf
    • https://uploads.strikinglycdn.com/files/595bc627-f274-46d2-8302-dba0aae37b22/fabafo.pdf
    • https://uploads.strikinglycdn.com/files/9151620a-dfd2-4ca5-9762-72765be988fd/nemisadibuzerexofijulof.pdf
    • https://uploads.strikinglycdn.com/files/8f21c9e0-4a42-4fb3-a2c4-1117e7ed2af5/meghan_trainor_-_like_im_gonna_lose_you_ft._john_legend_mp3.pdf
    • https://uploads.strikinglycdn.com/files/f2878a90-a733-4e88-8631-790d76f67990/59448447527.pdf
    • https://uploads.strikinglycdn.com/files/f6704f25-60d0-4e39-a823-646d6bf52762/99743428656.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_off0000bafa.bin
49a204b637b0566bc171e9dec01bb91f014653403237ae4a5657e7a9a2eb2ad0
pdf-font-stream PDF embedded font (sfnt) at offset 0xBAFA 5392 bytes
font_01_sfnt_off0000cd3d.bin
ae279992b81b6ef9879f568470b0fbdcfffc35713a17a7e179d723ab7a5b1603
pdf-font-stream PDF embedded font (sfnt) at offset 0xCD3D 10924 bytes