Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3a75ef992210c19…

MALICIOUS

PDF

67.5 KB Created: 2020-11-18 21:49:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 565d440b5e2ff7590216642a40c9f8dd SHA-1: 9d9f2aed915445c3ae03a66fed1c939320863082 SHA-256: a3a75ef992210c19ffbf351acd8bb53631d9f1f8a6dd462321b344140a464fbb
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://traffnew.ru/strik?utm_term=the+book+with+no+pictures+pdf PDF link annotation
    • https://voganolov.weebly.com/uploads/1/3/4/3/134372868/getuwafitex.pdfIn PDF document text
    • https://keveronusixenub.weebly.com/uploads/1/3/4/8/134852782/9579162.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376099/normal_5fa52945b924d.pdfIn PDF document text
    • https://xopaluwejur.weebly.com/uploads/1/3/1/8/131857284/xizijizi_womexexam_gunatodike.pdfIn PDF document text
    • https://nebijuwako.weebly.com/uploads/1/3/4/3/134376342/sumul-kiwupiviwan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447087/normal_5fa1eb52c8d00.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/tilufu.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/61659348805.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/908e2b9c-9bde-4c41-aa94-9535eb9b0822/xebugejetozaguladilupesan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/409776f1-3cce-4a53-aeb8-81ec5e1f8d0b/20634048029.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c4b5e7c-a9bf-45e5-8cc9-f19e6152483b/rivuxuxaketiviwozavimen.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/atari_lynx_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34f41a27-1e5a-47ff-8820-836921f2f656/52571540224.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB7E 5248 bytes
SHA-256: 857419f25d6fd76431165ef7a7494ec6e55e157d6053df6e287af51c205711aa
font_01_sfnt_off0000dd60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD60 10472 bytes
SHA-256: 694b008a82e342c8fde050ed54edb6d8bd9dfe0fea49c63d8d66ea268a172b5f