Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bd3b92999a0c171…

MALICIOUS

PDF

77.7 KB Created: 2020-11-12 19:39:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 05321e17f709859922440078ba9fe281 SHA-1: 1d77e938d02e7ceda067b38830d6fdd4f8b9895e SHA-256: 0bd3b92999a0c171f360d3d66e253b63f1c14f328a30cbbc8423881052e01c1a
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://trafficel.ru/123?utm_term=bulletproof+diet+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368265/normal_5f89b0fa04e21.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368758/normal_5fa0dc252e73e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416810/normal_5fa8b5625f412.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449990/normal_5fa2f9249b636.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/salosibejodod/31179995869.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e89bea1-8f8f-42aa-aa67-5f6d21dbe741/35802091517.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/king_kamehameha_iii_elementary_school.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ccc5bd9-43a4-4382-93ce-b271f14d3542/super_mario_odyssey_speedrun_route.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cacc58c1-2e08-44d2-b158-26c12d766f71/sefamofaxun.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/the_headspace_guide_to_meditation_and_mindfulness_andy_puddicombe.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/78898288670.pdfIn PDF document text
    • https://s3.amazonaws.com/nijudow/imei_repair_tool_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/56574883556.pdfIn PDF document text
    • https://s3.amazonaws.com/pazaxazusa/gn9330_headset_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/deep_deep_deep_dance.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7aef685f-2030-43df-b17d-c48cff7189c5/religious_songs_mp3.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_off0000f419.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF419 4696 bytes
SHA-256: 962ca55ab8686ffe763333653584ec86996b39ddcf50534e276ac647e8d84865
font_01_sfnt_off00010424.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10424 11148 bytes
SHA-256: 859e60ccd7e760ca78cd54a6b54cd6efc969e264fd1bdff54ca81b54a2bab31f