Malicious PDF — malware analysis report

Static analysis result for SHA-256 529cf2f6e6f840b9…

MALICIOUS

PDF

81.8 KB Created: 2021-03-30 10:51:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f3e3821b9aef3d69581f7c116a9ade8 SHA-1: dc961b314a01c7efea62151bccfb1b98dd704593 SHA-256: 529cf2f6e6f840b95f335701c1af1729e325384965f003d2189702eb2292b9bf
96 Risk Score

Malware Insights

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

The file is a PDF document that contains embedded URLs, one of which is flagged as malicious. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The document body, though heavily obfuscated, appears to contain references to search terms and file names, suggesting a lure to a malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://golowaki.ru/award?keyword=www.+cgpolice.+gov.+in+2020+18+pdf
    • http://gaxesujite.medianewsonline.com/how_do_you_get_a_29_hand_in_cribbage.pdf
    • http://xezixaz.getenjoyment.net/pafosipoguvavetomatuke.pdf
    • http://xoridamewok.iblogger.org/94172990039.pdf
    • http://gonalotuturopil.mywebcommunity.org/asymptote_output.pdf
    • http://citrus-fruit.space/wedding_invites_templates_freerck45.pdf
    • http://de-bewertung-id-q2e5t23.top/76044396781uv0ap.pdf
    • http://damvglaz1.xyz/lista_de_todos_los_acordes_de_pianotkp88.pdf
    • http://vipimuxatomefi.medianewsonline.com/33340937705.pdf
    • http://italywow.info/what_does_read_and_write_mean_in_whatsapp54y1y.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nakixaxev.myartsonline.com/fundamentals_of_computer_programming_download.pdf
    • https://9b321a86-0615-40a7-b684-6dced782f4cc.filesusr.com/ugd/e3cae3_1edc56eb187c4fbd987bfb9e168a4c22.pdf?index=true
    • http://tikeresepujel.onlinewebshop.net/acer_aspire_v5_charger_best_buy.pdf
    • https://uploads.strikinglycdn.com/files/537be8bf-b85a-4850-9521-6ec96c0c4781/13963037559.pdf
    • https://uploads.strikinglycdn.com/files/f0e6b0e4-2152-4cfd-bfda-b6a2f1e3788b/what_did_the_third_estate_consist_of.pdf
    • https://a7474f5d-6ec7-41e4-954d-8cb0a6a0c5ec.filesusr.com/ugd/b987d2_e984fc8bd6b04c8d9be1f528014c8b43.pdf?index=true
    • https://f8340159-69ce-4309-ac43-521e9a8475b4.filesusr.com/ugd/bc0b97_0cc2f159f70441d68872652608755f76.pdf?index=true
    • http://radiviwix.onlinewebshop.net/pdf_annotator_full_programlar.pdf
    • http://megoger.rf.gd/demokrasi_pancasila_adalah.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_off0001019c.bin
9cee0c4035d3eb1145511bb718c3ec44ccba6d2602b7c8f090baefdd0ec1f489		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1019C 5556 bytes
font_01_sfnt_off000114e1.bin
5221515c5dd119d3b688d68fbf17ebddea678431a6f1227627da280a8f87e387		 pdf-font-stream PDF embedded font (sfnt) at offset 0x114E1 10764 bytes

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