Malicious PDF — malware analysis report

Static analysis result for SHA-256 a94ff1cb6a339718…

MALICIOUS

PDF

77.3 KB Created: 2021-03-30 22:12:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c9e675f55fdb6371743f58feeaf484f5 SHA-1: 28932a9df5a31de073eaa98c6c0150c918569c5e SHA-256: a94ff1cb6a3397185bc73e3f7614a7f38734e5e481d14f5feb0cac0e81d41b0e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were extracted, the presence of a malicious URL suggests the document is designed to redirect users to a harmful site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://ponafet.ru/strik?utm_term=information+retrieval+nlp+algorithm
    • http://true-board1.club/sagegosizrughd.pdf
    • https://cdn.sqhk.co/tatidukigag/gfjaUbP/jazz_blues_music_radio.pdf
    • https://cdn-cms.f-static.net/uploads/4484834/normal_5fd14842201aa.pdf
    • http://lnstagram-helps-contact.com/88603925095p34ti.pdf
    • https://cdn-cms.f-static.net/uploads/4492901/normal_5fea133990d1f.pdf
    • https://static.s123-cdn-static.com/uploads/4407813/normal_5ff9c9ea5d2f8.pdf
    • https://cdn.sqhk.co/norekabalak/icjahgc/zusaratepavaxi.pdf
    • http://strahuemsya.info/77379779891y040g.pdf
    • https://cdn-cms.f-static.net/uploads/4444117/normal_6046805ea1f7e.pdf
    • http://stakingyfi.com/toxakovusalodanaroxomimn044s.pdf
    • https://cdn.sqhk.co/tejilunuf/1giVygj/coordinate_graph_pictures_free.pdf
    • https://cdn.sqhk.co/jesupasuzoku/jhhjgjc/9686399565.pdf
    • https://cdn-cms.f-static.net/uploads/4387218/normal_601dcf40ac027.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zexamimese.rf.gd/mapa_andalucia_carreteras.pdf
    • https://uploads.strikinglycdn.com/files/83fb5c28-aaf2-4d1c-9807-fba196d6738b/learn_korean_apps_free_download.pdf
    • https://uploads.strikinglycdn.com/files/b7786f19-e299-4944-a6a7-a0f17a84f3f5/how_to_sprinkler_systems_work.pdf
    • https://uploads.strikinglycdn.com/files/55082214-b001-4520-9a10-57a6dbf4b7a0/name_the_11_body_systems_and_their_functions.pdf
    • http://zufejudo.epizy.com/ife_okan_mi_song_by_bukunmi.pdf
    • https://uploads.strikinglycdn.com/files/619a34b2-f349-4b48-b4d4-2ac97e49204f/mepenixibu.pdf
    • https://uploads.strikinglycdn.com/files/5e079831-7338-44b9-96dd-90cd457c9437/nakewovotisovesul.pdf
    • http://vofufedufis.rf.gd/what_is_barbara_minto_pyramid_principle.pdf
    • http://baxajuzurajuj.rf.gd/the_complete_dead_sea_scrolls_in_english_penguin_classics.pdf
    • https://uploads.strikinglycdn.com/files/3e8cb0de-184e-41c3-bd74-26ac42da0ace/niveduvofovofujobevu.pdf
    • https://uploads.strikinglycdn.com/files/87614fd0-40ea-45b9-aeba-bebc241e8df1/34753266977.pdf
    • https://uploads.strikinglycdn.com/files/9ac301ed-138c-4924-8d2a-42c4a088b469/2004_yamaha_v_star_1100_service_manual.pdf
    • https://uploads.strikinglycdn.com/files/33d77553-c3ca-4e36-af3e-7e453e045b1c/mofino.pdf
    • https://uploads.strikinglycdn.com/files/4c940ec2-505d-4867-a5fa-104afaed8181/welupebesuz.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_off0000ee77.bin
2a3dcb044b1e0c4a400f9a163d002871d4d1ca853edce82b0f29272a3f81fb4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE77 5132 bytes
font_01_sfnt_off0000ffcb.bin
30d691f185de5f8ce5d7390e3d9d819b698580d11793f5074710905b963c5a4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFCB 11384 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.