Malicious PDF — malware analysis report

Static analysis result for SHA-256 36f6e24d6ae9e5ab…

MALICIOUS

PDF

82.2 KB Created: 2021-02-26 18:20:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: cc96670756961aee9dcffa8a8869f7d3 SHA-1: 225a972a12fded55cd30c11755a0b17da6ff6a8c SHA-256: 36f6e24d6ae9e5abaa01658c3fae4bcef145505c6dbed5b40e36661dae3c428a
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely for a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to trick the user into visiting a malicious site.

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://maypoin.ru/strik?utm_term=chevy+malibu+led+tail+lights PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4490519/normal_600d8b621d300.pdfIn PDF document text
    • http://copyright-infringement.business/los_72_nombres_de_dios_en_hebreo_y_su_significadogvpwk.pdfIn PDF document text
    • https://cdn.sqhk.co/neviragar/kibK6mA/panic_button_alarm_elderly_ireland.pdfIn PDF document text
    • http://medicinfo.online/742590409889vxo9.pdfIn PDF document text
    • https://cdn.sqhk.co/jagakutojut/mjjgijj/97783137681.pdfIn PDF document text
    • https://cdn.sqhk.co/relulapezele/iFjj15W/bakobobaniruvudibagozinim.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379982/normal_5ff9500921439.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387036/normal_6007e57c4ab94.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzetuzame/jd8hhq9/terminator_dark_fate_teaser_trailer_reaction.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471082/normal_5fcc21a791be2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484103/normal_6019770cc7b9d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480142/normal_5ff25a1f558ff.pdfIn PDF document text
    • http://milanomoda-italy.website/ffa_farm_business_management_study_guided1n0w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471252/normal_601d7220f2e5c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447273/normal_6013e3771213c.pdfIn PDF document text
    • https://cdn.sqhk.co/fapolokid/a6hct3d/anti-_theft_alarm_system_volkswagen.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408706/normal_5fcc9238da4ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477147/normal_5fd665a4a4195.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/benubapopikaj/samsung_remote_bn59_pairing_to_dvd_player.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_off0000f885.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF885 5132 bytes
SHA-256: a50125caebf22f79e7f890d7a622a7ebccefbed11c49c6a0bcb14ac7ab2e4a9f
font_01_sfnt_off00010a0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A0B 10344 bytes
SHA-256: 30f08b952db889a261e91b7dca99385549ee7efa89e3d0d35439c9031d7bbcd5
font_02_sfnt_off00012d36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D36 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c