Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7eecae182140b3a…

MALICIOUS

PDF

83.4 KB Created: 2021-03-19 15:32:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: edda100d43e9c99c9b27b7cd1dcf94da SHA-1: 94851bea469a4b750bcdc8db479ec45b76c728cf SHA-256: e7eecae182140b3a2c7ba0a3ca3f6989e9bae07df115e7f46c47160ce26dea6f
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, likely intended to trick the user into downloading further malware or visiting a phishing site. The PDF structure and embedded content suggest an attempt to disguise malicious activity.

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://baarspo.ru/aws?utm_term=elgato+hd60+s+plus+software
    • https://cdn-cms.f-static.net/uploads/4373992/normal_5fe7275583d09.pdf
    • https://static.s123-cdn-static.com/uploads/4482880/normal_5ffdbe55317d3.pdf
    • http://gedadekenoz.mywebcommunity.org/56606587236.pdf
    • http://bukuminuwakub.mypressonline.com/aruba_switching_fundamentals.pdf
    • https://cdn.sqhk.co/mujekesire/81ijSGv/nokamifutajikuketox.pdf
    • https://cdn-cms.f-static.net/uploads/4425507/normal_602879260c35e.pdf
    • https://cdn.sqhk.co/bepigulusibe/a6igjj7/best_shooter_games_2020_ps4.pdf
    • https://cdn-cms.f-static.net/uploads/4450036/normal_5fe6eab96d816.pdf
    • http://gebikomuxe.getenjoyment.net/23721651840.pdf
    • https://cdn.sqhk.co/rapawaferew/hnpjeii/31021482508.pdf
    • https://cdn.sqhk.co/zokuwagopole/jRjedjb/jegoramelofakodulujiraw.pdf
    • http://dujegud.getenjoyment.net/85299153206.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://netawuwimirixor.onlinewebshop.net/the_adventures_of_tom_sawyer_comics.pdf
    • https://s3.amazonaws.com/bajapovogam/zubomavilekiwaxasutajok.pdf
    • https://uploads.strikinglycdn.com/files/3f3f8693-26ec-4d37-8777-ef416836ded9/how_to_make_a_toga_out_of_a_large_t_shirt.pdf
    • https://s3.amazonaws.com/sabobenuwe/64528473526.pdf
    • http://bodirinukamole.onlinewebshop.net/kawebuluwapezuzisor.pdf
    • http://sajulugebimisu.myartsonline.com/digital_computer_electronics_book.pdf
    • https://uploads.strikinglycdn.com/files/b9aec1b8-b895-45e3-aa73-943810dae67f/raraj.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e609.bin
f2bd0ee399244722bee56b520908a1440ec5dff701fcad4a8d2b49dbf5dbaad4
pdf-font-stream PDF embedded font (sfnt) at offset 0xE609 5648 bytes
font_01_sfnt_off0000f955.bin
95fbf571e8e8dc0d211b47fd954515ee2c98f5279cef35112cdda80e9381fd87
pdf-font-stream PDF embedded font (sfnt) at offset 0xF955 21408 bytes
font_02_sfnt_off00012a1b.bin
2173a1880e9f774f759393e7d0d28dda91d04d8a3eae6bea41b822770b343b90
pdf-font-stream PDF embedded font (sfnt) at offset 0x12A1B 16060 bytes