Malicious PDF — malware analysis report

Static analysis result for SHA-256 32f005997d4c7516…

MALICIOUS

PDF

78.9 KB Created: 2021-01-15 05:00:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 3aef0ba57fd7c8be987b1f7cec50f21d SHA-1: e995e8e66378aff0264282581244d67c434dad47 SHA-256: 32f005997d4c75160693c7d4e160c8706c0af4a41bac4175773ebd17e91a3508
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, flagged by heuristics as a potential phishing or malicious content delivery vector. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for further exploitation or credential harvesting.

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://trafffi.ru/123?utm_term=belt+fed+ar PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4371005/normal_5fc7a2cec34a6.pdfIn PDF document text
    • https://cdn.sqhk.co/towafeniruje/e9geid1/word_games_online_multiplayer.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454299/normal_5fd7896a470b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411714/normal_5fc935b5b77c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475577/normal_5fa64d589980e.pdfIn PDF document text
    • https://cdn.sqhk.co/xekejegixawo/lpXjgGf/pagijulirekapu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366405/normal_5f8cfd68ceed2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463287/normal_5fad62c47011f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453718/normal_5ffe186fb6eeb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389101/normal_5fecc4149b297.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/lovomijelun/beerappa_audio_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/jizubisetebof/xotazotono.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/tijuxobobinexutorozitab.pdfIn PDF document text
    • https://s3.amazonaws.com/lukepepe/powerpoint_slide_templates_for_mac.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eaed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAED 4296 bytes
SHA-256: 67dbae0a8bad2ea5a8c7cefd780fcd76ba0d8ab2078d5c6bc79d15bb5e4f4d4e
font_01_sfnt_off0000f98e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF98E 11140 bytes
SHA-256: bab6876878fde3ae7352b54b960d05de1ec40e1b8e5e2d417c5f7ec0e7aa5590
font_02_sfnt_off00011f78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F78 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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