Malicious PDF — malware analysis report

Static analysis result for SHA-256 868a80642724e2f1…

MALICIOUS

PDF

72.6 KB Created: 2020-11-20 08:56:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: fe3f5fdf77f760554c13d8f6e46d67b9 SHA-1: 2f0b829d6adf3d403d44ebc70bb1a0a2b97d5c40 SHA-256: 868a80642724e2f1db2ac9612f1bf0442b15a97ba513260406f65e6b52df1d42
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 0.9997

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://traffset.ru/aws?utm_term=dell+r710+manual+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417536/normal_5f9cd2a67e54f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413240/normal_5fa9d589a5657.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384640/normal_5fa4f8247f34c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/b34d04fa-0c19-4534-8bc7-064eead33c38/96789029696.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/minecraft_ghost_block_mod.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/76846066173.pdfIn PDF document text
    • https://s3.amazonaws.com/xatojem/71849400288.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be7167a8-ac4d-4b2a-9328-89d61699d7c8/86967472488.pdfIn PDF document text
    • https://s3.amazonaws.com/wesezuzuvalirik/microwave_egg_cooker_as_seen_on_tv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a6d5b12-03ba-490d-97ea-5c731f8c3728/nefipiweb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb73ac12-4688-494d-b51b-64d92d07575f/3450238179.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD71 4928 bytes
SHA-256: 78d3a01a8c4f98450e16259a02fc6620e7f08d1ab7353c5e2438930afc662161
font_01_sfnt_off0000de16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE16 13116 bytes
SHA-256: d29f44424bd97e01a955d8547fbbe2d2914b80fdb88c7fae7fce139bd91a8218
font_02_sfnt_off00010660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10660 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2