Malicious PDF — malware analysis report

Static analysis result for SHA-256 95e5cfca7e1e5199…

MALICIOUS

PDF

73.0 KB Created: 2021-02-28 01:07:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2a9b35da4bd3e84f656f252299c6be1 SHA-1: 40a17fecdb2efb085e3e50cc33a22604bfc6866b SHA-256: 95e5cfca7e1e5199f8233ecfdf0efa1cbce5597162213b98edebc4d4b7feb81f
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL that directs users to a suspicious domain, likely to host further malicious content or phishing pages. The document body, though heavily obfuscated, appears to reference search terms, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://vilenefex.ru/strik?utm_term=reviving+ophelia+movie+youtube
    • https://static.s123-cdn-static.com/uploads/4462341/normal_60055ae0dd1bc.pdf
    • https://static.s123-cdn-static.com/uploads/4413109/normal_5fce0b660a8fe.pdf
    • https://cdn.sqhk.co/zukasedu/jaQhfVk/vocabulary_a-_z_username_and_password.pdf
    • https://cdn-cms.f-static.net/uploads/4444649/normal_60344880cd335.pdf
    • https://cdn-cms.f-static.net/uploads/4409801/normal_5fd27ffb61a66.pdf
    • https://cdn.sqhk.co/vekudaselux/ichcMje/mobile_payment_technology.pdf
    • https://cdn-cms.f-static.net/uploads/4371265/normal_601a09a2a192f.pdf
    • http://gudelew.mywebcommunity.org/41952653522.pdf
    • https://cdn.sqhk.co/sexuzoropa/WNjdmEZ/photo_background_editor_app_for_pc_free_download.pdf
    • http://bedojipekasel.22web.org/zaxubewi.pdf
    • http://tipofeliluget.medianewsonline.com/telezugabelasokotesuz.pdf
    • https://cdn.sqhk.co/kisesawaropo/GxelSgh/2019_mustang_super_snake_horsepower.pdf
    • https://cdn.sqhk.co/zunesunatiri/g653Wjg/boy_bands_90s_list.pdf
    • https://cdn-cms.f-static.net/uploads/4460241/normal_60366ebd029c7.pdf
    • https://static.s123-cdn-static.com/uploads/4481839/normal_5ff9cd3307422.pdf
    • http://xulodol.mygamesonline.org/46115066858.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://manomujutob.epizy.com/consumer_reports_dishwasher_recommendations.pdf
    • http://kedisijusa.onlinewebshop.net/vokikifuvefolu.pdf
    • https://s3.amazonaws.com/jiguwuzobozobaz/pebarewesapolu.pdf
    • http://gubazit.epizy.com/125cc_pit_bike_racing_parts.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3d7.bin
68d094faf81d2ea9f62e68ee4e789e40b6192f27e323b9e50c58fbaa8f881837
pdf-font-stream PDF embedded font (sfnt) at offset 0xD3D7 2900 bytes
font_01_sfnt_off0000de1a.bin
8cc0ce88c9da421515d676c4b3b66c0610e10852859f3c3bb46c20dd2110c63b
pdf-font-stream PDF embedded font (sfnt) at offset 0xDE1A 5268 bytes
font_02_sfnt_off0000eff9.bin
c80fb87d4bf0f1042d5a6d25d95648cece352e72005f0c1102963c61703bf6a5
pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF9 10716 bytes