Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dddecbff4ffe42f…

MALICIOUS

PDF

69.8 KB Created: 2020-11-10 02:55:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: b54facffe91c7155c2c472676781fa8e SHA-1: 29f46677664807903ddfe6a9380559b8a0bd76fd SHA-256: 7dddecbff4ffe42fbff8940f74dac77245dda14c7715f45bb3a6c58416ec4a33
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. 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 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://trafficel.ru/123?keyword=future+hack+client+minecraft PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416796/normal_5f99d3e07c69e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384817/normal_5fa25d6cce748.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386076/normal_5f94b0ac189d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418788/normal_5fa9cac81655e.pdfIn PDF document text
    • https://jivenikovo.weebly.com/uploads/1/3/4/3/134308789/kononeviwiloge-ranatojenonor-rifas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420586/normal_5fa83688746aa.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/rekibedafowow/venotap.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/bendix_king_eph_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/bridge_to_terabithia_teaching_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jaxesabi/pupenedovi.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/pajefefibatubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca7bc6cd-4ae1-43ac-abd0-7efb2ce100dd/linux_make_executable_permission.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1ff00ea-6568-4128-b022-d3d8cef98022/4526958594.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_off0000d471.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD471 4964 bytes
SHA-256: ed7c226d7e4fe5875fc311de0a65230e1ebdaa3614123addb0c0f769ecbe960b
font_01_sfnt_off0000e52f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE52F 10772 bytes
SHA-256: 38e26a347c6b69ebeac7f6bb90959f49d267b8d53e7b21b2ca9e5f8780f6bfe8