Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6ae6f09ab76aeb4…

MALICIOUS

PDF

78.3 KB Created: 2021-03-02 19:53:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74cddf11c6cc60172b51685c4882069a SHA-1: beba1ee83005078035810d6e570416603b19476e SHA-256: d6ae6f09ab76aeb4017ee74d028b0bddff28ace1984902dc242d5db67cd894ee
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 URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect to a phishing site. The document body, though heavily obfuscated, contains keywords related to instructions, reinforcing the lure.

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://kuzutuzo.ru/wix?keyword=2+liter+bottle+rocket+instructions
    • http://gijutudubesakuz.iblogger.org/camera_types_list.pdf
    • http://wikowezenitezo.medianewsonline.com/31194438161.pdf
    • https://cdn.sqhk.co/netimawifes/nK1gfjd/share_wifi_password_not_working_iphone.pdf
    • https://cdn.sqhk.co/xipitufekaru/ebjenzO/rail_rush_2_silvergames.pdf
    • http://libralab.digital/east_hartford_ct_police_reportslcqnd.pdf
    • http://retamos.mygamesonline.org/88703076329.pdf
    • https://cdn.sqhk.co/nolovojawek/iaJP8Fv/glass_smashing_room_near_me.pdf
    • http://uabiomanix.xyz/romenofamokadiboyre9j.pdf
    • https://cdn.sqhk.co/xejudawadoni/4UChak1/customizable_nautical_life_ring.pdf
    • http://tehnotop.space/meleridezo62wi6.pdf
    • http://sifulodidikit.22web.org/gatoxowekelos.pdf
    • http://winoxolupuvil.getenjoyment.net/what_are_two_examples_of_wastewater.pdf
    • http://xinuvaro.sportsontheweb.net/37904611308.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/kefodek/bovilika.pdf
    • https://s3.amazonaws.com/zedudo/34717328579.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_off0000ea7a.bin
9dc15c6038a282571b0c10a038da66e78f8e6e415d234a6913b5879145b0c8b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA7A 4704 bytes
font_01_sfnt_off0000fa79.bin
f00f386e77ad2ca04385e2c9bac04cdb872a5fc09fd9c17fd86fa02882b1d190		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA79 10208 bytes
font_02_sfnt_off00011d70.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11D70 4324 bytes

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