Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a08d8ad90ae0289…

MALICIOUS

PDF

90.3 KB Created: 2021-03-16 07:24:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a9846fec2ca112078aeaff0dd82c4c9 SHA-1: 7b11e3bfdb4425ce315506c532a57b0ce0e9d75c SHA-256: 1a08d8ad90ae02895ac5a5a06d7badd3c6ce495228faf5a5869b0c22939a625f
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for an external URI pointing to 'https://nipisod.ru/wix?keyword=jumbo+universal+remote+manuale+italiano+codici', which is likely a lure. The ML classifier and ClamAV detection strongly indicate maliciousness. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/wix?keyword=jumbo+universal+remote+manuale+italiano+codici
    • http://silvanozito.online/dbt_distress_tolerance_skills_activities0q0sw.pdf
    • http://info-pages.ru/street_legal_racing_car_listr9udz.pdf
    • http://wgathering.org/pekifojovalu06bxw.pdf
    • http://soinjaga.ru/30714055441my0v0.pdf
    • http://buloshnaya.site/sawagekasaloxujkxk2r.pdf
    • http://timelessdecorum.com/693760927195bitu.pdf
    • http://ompala.store/619661855233xhbr.pdf
    • http://m-ryanaf.site/lotus_caramelised_biscuitsidnmi.pdf
    • http://feelslike35.com/balochi_dance_video83obw.pdf
    • http://ecoterritory.store/432447482479o2e3.pdf
    • http://keepmaxi.space/cronicas_de_una_muerte_anunciada_completo_descargar7104x.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6c8f2a4e-486b-425c-8509-6723a0543136/wooldridge_introductory_econometrics_reference.pdf
    • https://uploads.strikinglycdn.com/files/48d21798-a3c3-4c82-85ce-2d11f3cc13a5/xubem.pdf
    • https://uploads.strikinglycdn.com/files/164315fe-773d-4a6a-bbe3-ca5c99e4089b/vaibhava_lakshmi_ashtothram_in_english.pdf
    • https://uploads.strikinglycdn.com/files/18b7259d-854f-4fe4-b26e-9993ac69f201/soxakovunoji.pdf
    • https://uploads.strikinglycdn.com/files/de2691fe-c77a-4142-a596-dc8b28b567e5/how_to_scan_from_canon_pixma_printer_to_computer.pdf
    • https://uploads.strikinglycdn.com/files/bb7840ca-dfd6-41c7-b2f7-c0f72c8b29f6/how_to_connect_qcy_t1c.pdf
    • https://uploads.strikinglycdn.com/files/90f1da21-7a8c-497a-a9de-62a7960afab3/jvc_kd-x50bt_installation_connection_manual.pdf
    • https://uploads.strikinglycdn.com/files/8aa8c06a-100a-43a2-ae1e-22264536c0a7/gusomuvafikameva.pdf
    • https://uploads.strikinglycdn.com/files/0ac218c3-190c-45e2-acbe-2ef1bf154416/como_desarrollar_un_algoritmo.pdf
    • https://uploads.strikinglycdn.com/files/f50e23d1-6120-4adf-bb10-c2528a1c6b42/sjcam_sj4000_air_review_philippines.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_off00011e69.bin
6497ab55be6a9787d8702aed982a6cea691de38a921044de3da673d50a94f653		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11E69 5272 bytes
font_01_sfnt_off0001303b.bin
a6c7b3e69d85964db5a9a12bf28766d47dc9650b1bb6e96f35c00730dbf29f2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1303B 14168 bytes

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