Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e7ca7e51eb7eb3b…

MALICIOUS

PDF

79.4 KB Created: 2021-04-03 13:13:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34482727c132f9e694259d0d6d893099 SHA-1: d3fc744cc01ab0fa1e91b839672cfa694690d70b SHA-256: 1e7ca7e51eb7eb3b0d725851fb20a28f0af366f1bc2b0ad6d72a014b3b3370e2
96 Risk Score

Malware Insights

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

The file is a PDF document flagged as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to 'soxebez.ru', which is likely a phishing or malware distribution domain. The document body is heavily obfuscated, but the presence of the external URI and the high risk score suggest a malicious intent, possibly related to phishing or downloading further payloads.

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://soxebez.ru/award?keyword=beta+distribution+pdf+calculator
    • https://cdn-cms.f-static.net/uploads/4446286/normal_600fcab78969f.pdf
    • https://cdn-cms.f-static.net/uploads/4450634/normal_602613ab3fdcb.pdf
    • https://cdn.sqhk.co/romilononove/iih6Hjh/zuvixiwutinatigik.pdf
    • https://cdn.sqhk.co/rekubapapup/fIBTija/police_motorbike_simulator_3d_game_download.pdf
    • https://cdn.sqhk.co/xoberuweri/eEjfKhb/difeladijibugasim.pdf
    • http://micrometerdigital.xyz/star_trek_voyager_elite_force_ps2_iso54ghw.pdf
    • https://cdn.sqhk.co/gisepavuv/uwvheEe/game_creator_free_download.pdf
    • http://pobuzajabazuwu.iblogger.org/11717985283.pdf
    • https://static.s123-cdn-static.com/uploads/4477873/normal_5ff2243e4fce5.pdf
    • https://cdn-cms.f-static.net/uploads/4383567/normal_6066062c52e78.pdf
    • http://xubanapirobula.mypressonline.com/what_is_the_theme_of_the_book_24_hours_in_nowhere.pdf
    • http://myimperfectmomlife.com/network_guide_to_networks_7th_editiontxx1x.pdf
    • https://cdn.sqhk.co/fadejiweruw/hhaiggi/short_life_2_poki.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://vofovesotidogi.epizy.com/advanced_presentation_skills.pdf
    • http://bivojeda.atwebpages.com/spalding_basketball_hoop_parts_base.pdf
    • https://uploads.strikinglycdn.com/files/55b6c37a-9e93-4209-aada-95903b2b9f6f/51221217293.pdf
    • https://uploads.strikinglycdn.com/files/73298498-07d3-4447-b662-411540e68351/jakekeke.pdf
    • https://uploads.strikinglycdn.com/files/95a47768-e29f-4df1-aa7f-a47a14cdda52/cuantos_metros_cuadrados_hay_en_un_metro_cuadrado.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_off0000e5ca.bin
93ef275bdbbae97990b91e6ba91cbed1125cc998e54eefb5db14ffa6f42b0321
pdf-font-stream PDF embedded font (sfnt) at offset 0xE5CA 5220 bytes
font_01_sfnt_off0000f78e.bin
2c001b3b7ba89ed83e89fe62844f69eb56c8414e49f100528ffe7aa40bbc8d6d
pdf-font-stream PDF embedded font (sfnt) at offset 0xF78E 12448 bytes
font_02_sfnt_off00012200.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0x12200 4324 bytes