Malicious PDF — malware analysis report

Static analysis result for SHA-256 b87194e32809752b…

MALICIOUS

PDF

82.0 KB Created: 2020-11-17 17:31:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8ee683076067fe11e2f7252a96dcb114 SHA-1: d24a85e97f3409f5965fa55d73d4e1592c93d2e0 SHA-256: b87194e32809752b613e4a07c7fc70c9445d9780e1dd5210fe3d952fec16157d
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/strik?utm_term=free+role+playing+game+manuals PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375077/normal_5f8bdf1598157.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502500/normal_5fb2a16bb67cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502175/normal_5fae269b1a046.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404984/normal_5f9978728d6b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427103/normal_5f9a828b44eae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378155/normal_5f9bccbf63e7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379043/normal_5f9b1c34439d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387711/normal_5f8e6a147cfbd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365539/normal_5f875b6ec64ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379984/normal_5f909ae9ed523.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365607/normal_5f9351ee126f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462376/normal_5fa527febe224.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://s3.amazonaws.com/baxekojojexusol/how_to_program_spectrum_remote_to_tv_codes.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/lojiguridekegutizebowibe.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_off0000f70c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF70C 5000 bytes
SHA-256: e5ff23d69961c9cc68a79f83fbe1cdc2eae93ede2d65adb16e00e8490aa0e38d
font_01_sfnt_off000107ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107EE 10836 bytes
SHA-256: eded41ddffd1fb69fc01bd007f956bca7a6ee8a98623af908d1c96d9a21e4187
font_02_sfnt_off00012c9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C9F 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378