Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4f4d9c0e0cf7aa4…

MALICIOUS

PDF

83.1 KB Created: 2021-03-18 03:50:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dfab6648006039dc678428e2e558435d SHA-1: 10b22add8c0aef122cc9cfed78e63df1400dbe06 SHA-256: d4f4d9c0e0cf7aa4dde9eeae0c7f7d74b0202131ded606033165bbf801aeb4dd
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. Although no scripts were directly extracted, the PDF structure and embedded URLs suggest it is designed to exploit users through social engineering, likely as a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jumiwimov.ru/strik?utm_term=ulysses+poem+analysis+ieb
    • http://usejus.pro/piwoxezuxivorubatawokiseo48um.pdf
    • http://mazipuvaxa.mywebcommunity.org/borema.pdf
    • http://tapopapebesawu.getenjoyment.net/streptococcus_mutans_and_dental_caries.pdf
    • http://xukosususif.medianewsonline.com/levuf.pdf
    • http://nibakelenixezas.getenjoyment.net/auditoria_administrativa_ejemplo.pdf
    • http://bu-markett.com/ximujemetedotodevipokeveg4yvpi.pdf
    • https://vixezikuf.weebly.com/uploads/1/3/1/3/131383943/kopuzajux-pegebazop-bufufatatuzuka-fadaxozi.pdf
    • https://bumiwawewa.weebly.com/uploads/1/3/5/3/135343946/7468931.pdf
    • http://taptopbot.com/gbc._emu_apk_1._5._37_downloadjv7zi.pdf
    • http://daating19.site/sebobowonososunadatisezuxqloh.pdf
    • http://lobulezinovux.medianewsonline.com/degavamituxu.pdf
    • http://tanivikovome.sportsontheweb.net/fuzebavis.pdf
    • http://legendnat.space/gowinevesovovolorupljv3i.pdf
    • https://mufosuxid.weebly.com/uploads/1/3/4/0/134040625/792c72.pdf
    • http://doridusa.medianewsonline.com/cisco_ccna_routing_and_switching_200_120_exam_cram.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://858e1da1-ad31-4e5b-aec0-89c59c6c71f6.filesusr.com/ugd/6240f8_6c711d95aed547969180dc69151362a6.pdf?index=true
    • https://uploads.strikinglycdn.com/files/920683c2-e53a-457a-b44d-3be581e82b74/citizen_gn-4w-s_titanium.pdf
    • https://uploads.strikinglycdn.com/files/51a837c1-8319-4095-bbf4-2d123b6bd657/is_it_possible_to_learn_python_in_a_week.pdf
    • https://uploads.strikinglycdn.com/files/c32187b9-21ed-40f4-82cc-75e2eca3f8c9/pathfinder_iron_gods_classes.pdf
    • https://0b670cc3-d94b-4117-8b98-7ce677fb6c21.filesusr.com/ugd/7bc559_58b57ab4a5f248f2b266ebb0486b5521.pdf?index=true
    • https://uploads.strikinglycdn.com/files/432afc1a-2bd0-410f-b37e-3ddd750336ba/91138740821.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_off0001092e.bin
ed308c6e85cfb8e59d7cdf08053536c0656627f5aba677c4be709100f16eceb5
pdf-font-stream PDF embedded font (sfnt) at offset 0x1092E 5100 bytes
font_01_sfnt_off00011a7b.bin
b49bb2caad0253fc328fa15dea808a37e9ed3254101a1a3beeff03cd0852f0f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x11A7B 10816 bytes