Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6c88213980216ca…

MALICIOUS

PDF

70.8 KB Created: 2021-02-11 12:27:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43c565313c385b112884cbeef6c9855b SHA-1: 16a2e7e9ddeaeadd1c9c5cd2734061584440a43c SHA-256: c6c88213980216ca67ff0e55056efad4e40d8321523e09ea3195de929f8ca715
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that masquerades as a search result, likely to trick the user into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect the user to a potentially harmful resource.

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://baarspo.ru/123?utm_term=how+to+draw+soccer+ball+on+cake
    • http://ooovseanalizi.ru/blackberry_os_10_android_runtime_4._4cmnck.pdf
    • http://paganel.world/xamuvefonugatq8q4t.pdf
    • http://durasazi.iblogger.org/bass_boosted_music_player_apk.pdf
    • https://tegipogelow.weebly.com/uploads/1/3/1/4/131407588/7568412d1.pdf
    • https://cdn-cms.f-static.net/uploads/4481509/normal_60225cf4de4c4.pdf
    • https://cdn-cms.f-static.net/uploads/4401697/normal_6022747faaa1a.pdf
    • https://cdn-cms.f-static.net/uploads/4369646/normal_60122dc09a824.pdf
    • https://static.s123-cdn-static.com/uploads/4416928/normal_60009e8023b64.pdf
    • https://nililekekikare.weebly.com/uploads/1/3/0/7/130739967/9931663.pdf
    • https://buzixigadojaw.weebly.com/uploads/1/3/5/3/135316262/luvajopevefewur-deredow-sowulusux-vemubupi.pdf
    • https://cdn.sqhk.co/dedejosewor/icjeEie/lededajawibufinado.pdf
    • https://cdn-cms.f-static.net/uploads/4417129/normal_600c7a41c4276.pdf
    • http://fishing-rods2.club/fetulimuxemibutede4cgae.pdf
    • https://cdn.sqhk.co/korokotuduki/d0lgh8R/84911614190.pdf
    • http://menbp.online/sotiwebutijlxzwg.pdf
    • https://cdn.sqhk.co/nejibija/bhijcjh/wrestling_revolution_2d_hack_ios.pdf
    • https://wajefoxefibivi.weebly.com/uploads/1/3/2/8/132814680/c922230d7.pdf
    • https://ruvedusipokowu.weebly.com/uploads/1/3/0/8/130813644/xepurex-genixa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://temoweboriti.rf.gd/cardinal_newman_catholic_school_sixth_form.pdf
    • http://refipazak.epizy.com/29312217167.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_off0000d7b5.bin
8b460a8434ea11350e8e1470f58d58afb316fda5fe3193d1bb9474dbf3c0072a
pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B5 5188 bytes
font_01_sfnt_off0000e975.bin
588043ede12eee824b32fa7becc74a5344c801d5a319ff4d99b27939b0608769
pdf-font-stream PDF embedded font (sfnt) at offset 0xE975 10968 bytes