Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccacae1b6f4dd49f…

MALICIOUS

PDF

70.0 KB Created: 2020-12-31 00:09:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b334c51a68ea8c280cea0e29b735db42 SHA-1: 584c373205bf0b40877a9d2f53504dc7c7642c77 SHA-256: ccacae1b6f4dd49f3d2ea4e92e026060516ce4f75a19e6ee78ecbe18d96cafb8
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the overall detection suggest the document is designed to trick users into navigating to 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://traffnew.ru/123?utm_term=relion+blood+pressure+monitor+bp200+manual
    • https://sekikeke.weebly.com/uploads/1/3/4/7/134739811/8296093.pdf
    • https://sufexijim.weebly.com/uploads/1/3/4/6/134679247/zeveres.pdf
    • https://cdn.sqhk.co/wozepefiga/Y58xibL/95174102839.pdf
    • https://zugufavowi.weebly.com/uploads/1/3/0/8/130874222/moximajiwabeter.pdf
    • https://cdn.sqhk.co/pevejotomoma/esUAbjg/weed_farmer_overgrown_apk_license.pdf
    • https://kikitepolo.weebly.com/uploads/1/3/4/5/134514310/venijazosereju.pdf
    • https://cdn.sqhk.co/momujolo/V4UPje4/88305412323.pdf
    • https://cdn-cms.f-static.net/uploads/4374540/normal_5f89a840d84a9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/1f47b7f8-177a-49f4-8946-eb37c262353d/dilefarakowetikegus.pdf
    • https://uploads.strikinglycdn.com/files/b077126d-6c54-4b3c-b028-261c680f6af5/cuisinart_ice_cream_machine_manual.pdf
    • https://uploads.strikinglycdn.com/files/010262b2-ad61-40f2-b256-fa15477d3160/lutuvigovupeja.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_off0000d49f.bin
0b8464c4ac3e44da504dc3e56fdcd7d73ffe7149da3c99725e293bdaa1b51692		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD49F 5528 bytes
font_01_sfnt_off0000e747.bin
b97029e6c08e46a850985c681c7ff3b9517ab8851171be12cd2cce20a498d297		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE747 10540 bytes

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