Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e97a6b5cdcd82e…

MALICIOUS

PDF

207.4 KB Created: 2020-12-02 20:13:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a04965f2b52311682ab62fa0940a0a6b SHA-1: dfdcd8626ada51503643a6ca3f9049f7c62beeeb SHA-256: d1e97a6b5cdcd82e5a5bcec61ac4bbaac075102565ca32e953438d145ca71440
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing purposes. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, suggests a lure related to marketing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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=marketing+content+calendar+template+2018 PDF link annotation
    • https://kezevamu.weebly.com/uploads/1/3/4/2/134266298/tezukejixawigek.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419642/normal_5fb4e783b620c.pdfIn PDF document text
    • https://famutogerene.weebly.com/uploads/1/3/4/6/134688643/tumitebedonef_zexepasowevewi.pdfIn PDF document text
    • https://rofuvawe.weebly.com/uploads/1/3/4/3/134363923/murilenepaxan.pdfIn PDF document text
    • https://sekeratogo.weebly.com/uploads/1/3/4/6/134683690/f2200e1c.pdfIn PDF document text
    • https://vuduleputasi.weebly.com/uploads/1/3/4/4/134488699/5372052.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/3040947.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc52ec48ef7301f8b2ce720/t/5fc7061f7995075abdd9a4ed/1606878751553/chrome_music_lab_songs_link.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc66c8a8ef7301f8b36d770/t/5fc734c80623334b0c5bdb59/1606890697167/the_silent_age_game_engine.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0cc6dc14dfd36fef0f123/t/5fc2c2ae1972c46e3cf92a76/1606599342937/57405801376.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf48ec3570fb44d1f8bdcc/1606371566434/fizonanutipo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/731e0195-5675-4af9-8cc8-ba6c553e91d8/institutas_de_calvino.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f54c7224-f4df-4ca3-a42a-20d42e5d5c09/44130751760.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1138816f6d44b07bfcb5c/t/5fc3df966457125654b2cb55/1606672278765/vawiwojutidonobasove.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002e825.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E825 5804 bytes
SHA-256: 8a5828b9b27c71e03933f2e69dd734403d1638f1fd65c0c3188f961ce7f2e985
font_01_sfnt_off0002fbe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FBE9 16396 bytes
SHA-256: 511d3eb6533da0242988ecfc5c1e70030cead63570e0b2aee96e65e891d441e8

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