Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb1e0bdcad11d298…

MALICIOUS

PDF

77.7 KB Created: 2021-03-31 08:45:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72938688eb7bceaece72bba0ab774e24 SHA-1: d87a1eba4c9008c1b57bd444b599a31c48970949 SHA-256: eb1e0bdcad11d2989244c8f2a04006b7cd330d272d58968c6c8089c7847d8a10
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URI pointing to a suspicious domain. ClamAV and an ML classifier flagged this PDF as malicious, specifically as a phishing trojan. The embedded URL is the primary indicator of a potential phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://lozipotod.ru/award?keyword=sarah+pink+doing+visual+ethnography+pdf
    • http://faxusupovetek.sportsontheweb.net/gifuriruwewodepog.pdf
    • https://lelopotive.weebly.com/uploads/1/3/0/7/130738546/35a14.pdf
    • http://jorowijedo.mywebcommunity.org/frigidaire_refrigerator_door_bin_shelf_part.pdf
    • http://mujubow.getenjoyment.net/catalogo_citofonia_bticino.pdf
    • http://pepariravifaza.getenjoyment.net/aspirantszone_december_current_affairs.pdf
    • https://pimitasemoz.weebly.com/uploads/1/3/4/6/134646318/4770072.pdf
    • https://static.s123-cdn-static.com/uploads/4385422/normal_5ff1975f9887a.pdf
    • https://cdn-cms.f-static.net/uploads/4483365/normal_60592924413b0.pdf
    • http://tuworiki.22web.org/adapter_android_recyclerview.pdf
    • https://ligibodi.weebly.com/uploads/1/3/4/4/134469997/f4281bda7efd49.pdf
    • https://static.s123-cdn-static.com/uploads/4423428/normal_5fe435c865ccb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rebubokinore.epizy.com/mutir.pdf
    • https://uploads.strikinglycdn.com/files/1bb5f256-2238-4838-8c31-400d0dc20b04/seres.pdf
    • http://seroritubofa.atwebpages.com/cambridge_complete_advanced_workbook_with_answers.pdf
    • http://wojotefeva.rf.gd/xepasufuvexala.pdf
    • http://bodegifu.atwebpages.com/32551394806.pdf
    • http://tuxefunuzire.atwebpages.com/90453772918.pdf
    • http://dapizodipe.myartsonline.com/duriwuwagukegivikezun.pdf
    • https://uploads.strikinglycdn.com/files/b6f46b11-f232-4239-84a0-c21029a229e5/ranco_thermostat_wiring_diagram.pdf
    • https://uploads.strikinglycdn.com/files/581f3a1a-8817-4be6-bcba-e9389ac51e34/pedopiwugiximelurexugipem.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f129.bin
2aa53c9cf9b823fd9eb14c0185df5ace88e94c609219090d90f95acac21c9463
pdf-font-stream PDF embedded font (sfnt) at offset 0xF129 5632 bytes
font_01_sfnt_off00010457.bin
beeb72130493e5b493806f2466b9cc26200b555e09b4a3d352e9cf23e778ad66
pdf-font-stream PDF embedded font (sfnt) at offset 0x10457 11128 bytes