Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7c60d246337bcbf…

MALICIOUS

PDF

66.1 KB Created: 2020-12-02 08:48:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: a256cff904655ca3ab100e5f9aa1abee SHA-1: d2d626a1e7937e24a8d77f56a876c6f587f37909 SHA-256: a7c60d246337bcbfffef9817b03035ad8ef7f7dfbdeec867c0aabb5244283c14
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/123?utm_term=666+area+code+zip+code PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368742/normal_5f9475ec4ddf8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415518/normal_5f9f7bace5d66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417997/normal_5f9ef0e02331a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366401/normal_5fb5030f2e940.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422884/normal_5fc089347f19b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450034/normal_5fac08733b5f6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf64ea7acac6192ab8f95c/1606378732636/tera_timescape_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc676cd1452f90b7f0b47eb/t/5fc707c5bfb90028be477414/1606879174422/your_majesty_game_of_thrones.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe2984e18c5c478ec55233/1606297990267/dell_xps_2710.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc06ecff7cf8c75402886b4/t/5fc321bdfa04221c7186e156/1606623680901/who_wears_a_beard_thats_long_and_white.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d446ab79f442f2293e00/t/5fc13fbef81c9a2a0ccfbcfc/1606500288498/transformations_of_linear_and_exponential_functions_worksheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe01e34e98326c02d6a604/1606287844240/webizegupel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eced6dd3-5898-4ce7-91b2-72a2305a2248/vegexewovebodejalom.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_off0000c83c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC83C 4968 bytes
SHA-256: ffe2530e3e2d6a17b4d38406b9c058b8a23c2a0f5a5ee1633a562b604f2f4503
font_01_sfnt_off0000d931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD931 10264 bytes
SHA-256: a4404a517739a81fe3e89f7d193fe204e5b9c1605f32ba0b360589637828676e