Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c701c13f92f57be…

MALICIOUS

PDF

77.0 KB Created: 2021-03-17 06:35:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d9cae6aa22e37b754f2705216aaf53ec SHA-1: d38b6e8dd1e758c07a6d27622361e41a786fa278 SHA-256: 6c701c13f92f57bed3d94da874c27c1e9129c93e6703ed3f443b3f601362e238
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains multiple embedded URLs pointing to potentially malicious domains, suggesting a phishing or credential harvesting attempt. The presence of PDF-specific heuristics indicates the exploitation of PDF vulnerabilities or the use of PDF features for malicious purposes.

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://seumenha.ru/award?keyword=define+capital+market+pdf
    • https://static.s123-cdn-static.com/uploads/4464873/normal_5fcefa470ad56.pdf
    • http://xozemapij.22web.org/life_fitness_bike_ic6.pdf
    • http://ninijefaligogi.mygamesonline.org/modals_of_possibility_exercises.pdf
    • https://cdn.sqhk.co/pojizurigos/uibpBjg/dinatowamifuba.pdf
    • https://cdn-cms.f-static.net/uploads/4376858/normal_5fe6deaf539d9.pdf
    • https://cdn.sqhk.co/xuluriwu/Ngc1hjV/somuto.pdf
    • http://sesigugakipezov.22web.org/android_update_google_play_services_error.pdf
    • https://static.s123-cdn-static.com/uploads/4480579/normal_5fe189e8627f6.pdf
    • http://vevaxogejaz.scienceontheweb.net/ninudo.pdf
    • https://cdn.sqhk.co/zarepowake/jggjiia/viruni.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://b615eccc-4413-4b1d-8109-ede925130a83.filesusr.com/ugd/0994f9_16207ef13255469a965b9919fdd8066d.pdf?index=true
    • https://a84030a7-2e48-4039-807a-383e2b7216cc.filesusr.com/ugd/c5d40f_125c3c72144840409a09354cf65d8caf.pdf?index=true
    • https://cd753cf5-d90a-4073-9c55-931a76e81761.filesusr.com/ugd/8826df_89e927fd52654163abee77c1e461c997.pdf?index=true
    • https://189c2d36-84ff-4b81-9465-96c33c1d3b91.filesusr.com/ugd/35ddae_0640ea33c56b45bfb704c613d96c7952.pdf?index=true
    • http://gopudagob.epizy.com/bawejajel.pdf
    • http://vizokipinebawik.rf.gd/ranapepili.pdf
    • http://kubudafexajik.rf.gd/rudepijuxumetatixamug.pdf
    • https://e1cd7dcf-8988-4be8-9b1a-722367337987.filesusr.com/ugd/6203b9_84f83b6322934a3f922315095d7ae224.pdf?index=true
    • http://telifujovemevo.atwebpages.com/basic_functions_of_language.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_off0000f200.bin
704b712c82a95dfb6c83835a35a910f0f63c0be6250a623762089de9ac70ac1a
pdf-font-stream PDF embedded font (sfnt) at offset 0xF200 5184 bytes
font_01_sfnt_off00010397.bin
d97eea2902471df9a89cefc765672b6d51cece9b6d2bdb05ee120d182cefba78
pdf-font-stream PDF embedded font (sfnt) at offset 0x10397 10436 bytes