Malicious PDF — malware analysis report

Static analysis result for SHA-256 24e9b61c6e4463de…

MALICIOUS

PDF

70.9 KB Created: 2021-01-13 00:43:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f82e77123b89d15d629a591979f16de SHA-1: e761ea06e98cc6d26b2b09f7bc3d67f055566cb8 SHA-256: 24e9b61c6e4463de83858406fc4811eed0c04e257d45a5c64f5384ce167a2b3c
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a domain associated with phishing and malware distribution. Although no scripts were explicitly extracted, the PDF structure and the presence of an external URI suggest it is designed to redirect users to a malicious site, likely for credential harvesting or malware delivery.

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://trafffi.ru/123?utm_term=tyrone%2527s+games+gunblood
    • https://cdn-cms.f-static.net/uploads/4378155/normal_5f993295d6cec.pdf
    • https://cdn-cms.f-static.net/uploads/4374957/normal_5fd70549d3120.pdf
    • https://static.s123-cdn-static.com/uploads/4475737/normal_5ff80e3391c6f.pdf
    • https://cdn-cms.f-static.net/uploads/4422897/normal_5f9e7e9f2152f.pdf
    • https://cdn.sqhk.co/pumibavi/hgfhfhd/temple_3d_endless_run_mod_apk.pdf
    • https://cdn.sqhk.co/takularozo/ighgidE/naxijebugurinotabupabap.pdf
    • https://cdn-cms.f-static.net/uploads/4373779/normal_5f8e3d82619af.pdf
    • https://cdn.sqhk.co/badaxiloru/JqgfjiP/mega_man_mobile_download_apk.pdf
    • https://cdn.sqhk.co/luxixumogez/NdhjkmM/movies_coming_out_in_august_2020_on_netflix.pdf
    • https://site-1171454.mozfiles.com/files/1171454/jurassic_dino_water_world_mod_apk_home.pdf
    • https://cdn.sqhk.co/momujolo/75kgj1F/warriors_of_kingdom_revenge_fight_mod.pdf
    • https://site-1206710.mozfiles.com/files/1206710/online_shooting_games_for_chromebook.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/pogolo/intertemporal_budget_constraint.pdf
    • https://s3.amazonaws.com/vifusupegiza/apowersoft_video_capture_6._2._7_crack.pdf
    • https://s3.amazonaws.com/zatazewoz/lafofut.pdf
    • https://sites.google.com/site/unblockedgamesforpeasants/home/portal---
    • 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_off0000d783.bin
ac1f828c8ed5b77f43da5dbfbefd0f6392bb3f5f747d612a681ea0b1767345a7
pdf-font-stream PDF embedded font (sfnt) at offset 0xD783 5372 bytes
font_01_sfnt_off0000e9bb.bin
c74f44abfaa78d4b697751b4b62557995bc212326ba00990f843c67bd7ea1d91
pdf-font-stream PDF embedded font (sfnt) at offset 0xE9BB 10832 bytes