Malicious PDF — malware analysis report

Static analysis result for SHA-256 e775d88bd00d151b…

MALICIOUS

PDF

84.0 KB Created: 2021-06-09 03:52:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94c7206d86a3c5bae31cca51a6c11ebd SHA-1: de91c9315d9e98430630ffe9585190daefa4f83b SHA-256: e775d88bd00d151b27fe6670e3b9207b8adfdf072c997eeaa180acbdbd808a77
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains an embedded URI that mimics a search result for a game download, likely intended to trick users into downloading a malicious payload. ClamAV and ML classifiers also flagged this file as malicious, specifically as a phishing trojan. The presence of numerous suspicious URLs further supports the phishing and malware distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://huntic.ru/uplcv?utm_term=temple+run+game+for+pc+download
    • http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/160796c65ee6fb---memukupebozimelu.pdf
    • https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/301501826e3cabd138c2778cb852b099/tepemifonujunone.pdf
    • https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af593173505---xililososikusoxepavenex.pdf
    • http://hungthanhauto.com/luutru/files/wofosu.pdf
    • http://fewo-spreewald-schoetzigk.de/brandenburgtag/img/editor/file/jozuxon.pdf
    • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/8e6df809ca5aade596efd67d67e1eece/wevodefi.pdf
    • http://gursakaryahukuk.com/images/file/giviwubo.pdf
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/5ff3cdc72f73d659899dce713e5e51f7/86655662295.pdf
    • http://axiomestates.com/userfiles/file/3973468875.pdf
    • http://sgrappresentanze.eu/userfiles/files/6653962763.pdf
    • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16083bca78cd78---27769881560.pdf
    • http://grandchainfamilyfoundation.org/clients/85333/File/10452759105.pdf
    • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609162fd9c21a---46143766712.pdf
    • https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/3152792042b4cf84df41a409de6425ce/lurirexala.pdf
    • http://martonaroniskola.net/userfiles/file/xisagusunetesif.pdf
    • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/a87kf111l51cijpmpco64buc3s/wototelumobudedavofodib.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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_off00010be3.bin
2ddd90c1cc3907e8874b375693a6d8e75c12e9aec2bcd290e521e24293730d57
pdf-font-stream PDF embedded font (sfnt) at offset 0x10BE3 5340 bytes
font_01_sfnt_off00011e07.bin
047a353a934931013ba252334260429b699e12b7e1ff8cfa70c4f86076ae4ba0
pdf-font-stream PDF embedded font (sfnt) at offset 0x11E07 11068 bytes