Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d31c493842292b6…

MALICIOUS

PDF

77.8 KB Created: 2021-03-09 02:10:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: d98491b068f9ab47eb633981ab06d0d0 SHA-1: 59ad13477d114df6ad54396653d95380619a4d5e SHA-256: 2d31c493842292b610a3bbdd02975a378cf10c1815bee7496b34e57abd676da5
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a domain associated with phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to trick the user into navigating to a malicious website, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://golowaki.ru/strik?utm_term=learning+investing+for+beginners+books PDF link annotation
    • https://cdn.sqhk.co/keximovib/hUghjjd/wakazuvekaxixitigulodima.pdfIn PDF document text
    • https://cdn.sqhk.co/jezaziritav/hve6Zih/7607843307.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluniziwav/iahdE8U/wuvadolizapojaveko.pdfIn PDF document text
    • https://cdn.sqhk.co/xasakeza/njdA1Aq/sevimirere.pdfIn PDF document text
    • https://cdn.sqhk.co/japewaturu/jNWhbyD/kakenulewipodap.pdfIn PDF document text
    • http://gujafitixa.iblogger.org/autosar_basic_software_module_description_template.pdfIn PDF document text
    • https://cdn.sqhk.co/jisepozidis/cx2x7gf/mirapovariwejedifirofig.pdfIn PDF document text
    • http://mopexaxurip.getenjoyment.net/tabla_de_distribucion_normal_positiva_y_negativa.pdfIn PDF document text
    • https://cdn.sqhk.co/bidekidarub/jNEhbjd/wejadawagiboz.pdfIn PDF document text
    • http://pubolovuwete.iblogger.org/rental_property_depreciation_guide_ato.pdfIn PDF document text
    • https://cdn.sqhk.co/xinovupu/MwyhgW8/irish_washerwoman_sheet_music_violin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://wugetad.myartsonline.com/tumogobimisuzemizitedu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfe59568-258a-483b-8f68-63b1e379ccdd/4731411233.pdfIn PDF document text
    • http://luxovas.rf.gd/alone_tamil_status_video.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8d784fd-40f8-4c42-a904-97ab979e19f3/how_to_tell_if_dyson_v6_is_charging.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/123fe604-d4ba-412c-8d3d-389970b1d3eb/tulimapivo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0953e79e-b630-47a1-828c-881d364823a0/soloxagik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c61593d-a402-4bf0-ad48-7a7e0445d129/verotitanokoxegex.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6C3 4896 bytes
SHA-256: bd7bdefddd6f95eea71fa392a06f27051e681b48094e16390f5c2440c2b090dc
font_01_sfnt_off0000f785.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF785 10568 bytes
SHA-256: 99acd9ac20a7bb6ed5db1c26fef488d2fa3bef6c9c5eb8da7f42d58966c95cd7
font_02_sfnt_off00011bca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BCA 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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