Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ae693dccc15d417…

MALICIOUS

PDF

76.8 KB Created: 2021-05-14 03:09:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56cc70080b64ed42629ab166689ec707 SHA-1: 689e8a85c0ec794e97630cfc2decede65e3505af SHA-256: 0ae693dccc15d417475bde3bcf2d5e42cb304599faba151ed74167b525ef414e
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a suspicious domain, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the presence of external URIs and the overall detection profile point towards a phishing lure designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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/strik?utm_term=what+is+adh+deficiency
    • https://cdn.sqhk.co/soxosovave/5ChbOAT/zovifikisifete.pdf
    • http://instahelpforbusiness.com/kuwivaribalomawuvisozeocky.pdf
    • https://cdn.sqhk.co/fanabezom/idhiih3/8513839061.pdf
    • http://austritkfa.com/treaty_of_guadalupe_hidalgo_text9u3oo.pdf
    • http://dutov.org/153117183491m9jn.pdf
    • https://cdn.sqhk.co/rumobotituda/bTuxijy/last_christmas_sheet_music.pdf
    • https://cdn.sqhk.co/bovokolel/WPs2Hmd/50911635183.pdf
    • https://cdn.sqhk.co/mujekesire/7nTjg9q/71028186965.pdf
    • http://feremujidonigu.getenjoyment.net/calendar_ortodox_iunie_2020.pdf
    • https://cdn-cms.f-static.net/uploads/4383679/normal_6019aed3ce9e7.pdf
    • http://housefashion.ru/35189823550lz3i3.pdf
    • https://cdn-cms.f-static.net/uploads/4390051/normal_603868f398078.pdf
    • https://cdn.sqhk.co/gavezexu/h18XBhT/control_center_ios_14_gap.pdf
    • https://cdn.sqhk.co/nowonipewo/hDyzsgc/free_movies_on_youtube_action_pack.pdf
    • http://rupazaduxil.mywebcommunity.org/gumuzivepifuvoz.pdf
    • https://static.s123-cdn-static.com/uploads/4388067/normal_5ff113a50f09c.pdf
    • https://cdn.sqhk.co/rifebonapesi/ci8I0jf/rugavuzafepesatuturaweta.pdf
    • http://pressit.space/how_can_you_define_public_relationsbgk9g.pdf
    • https://cdn.sqhk.co/veleviziwew/KighMpO/sewojuxevoxulabowida.pdf
    • https://static.s123-cdn-static.com/uploads/4365624/normal_60069f7df1ae0.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/2ea58b11-4b5f-4052-abcb-45dc12b50660/namoribisoruponosob.pdf
    • http://rotufixijisadi.onlinewebshop.net/somutagutixadanokomipala.pdf
    • https://uploads.strikinglycdn.com/files/f6e411c6-638b-4845-8d34-ecf35eebffe4/55012498573.pdf
    • https://uploads.strikinglycdn.com/files/31edb87e-babe-4e79-8b4e-cfc4fea381fb/lodopuxuledi.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_off0000f07c.bin
1367ff8b4170046256bb8d1ac7e5854f1730134ed6cc8435674511a49d5215d7
pdf-font-stream PDF embedded font (sfnt) at offset 0xF07C 5096 bytes
font_01_sfnt_off000101ec.bin
6032a3edcf7adb791cebbc8e07ae7a0b142374204e5d2845490352a7e59c029f
pdf-font-stream PDF embedded font (sfnt) at offset 0x101EC 10624 bytes