Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a8c0d101a33ff4d…

MALICIOUS

PDF

186.2 KB Created: 2015-07-27 11:49:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-09-17
MD5: d65290b6cf7a9d548ab8359473bf7e37 SHA-1: 0c9a890b1850fc9ee44b0cb7901397a7b27c03b1 SHA-256: 3a8c0d101a33ff4de7417ebb1c1353318191795610a17a21d4f64ac976cfd113
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is likely intended to deliver a second-stage payload. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of a malicious URL strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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 http://botcraftman.ru/?lip&keyword=%D0%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+flash+player+%D0%BF%D0%BE%D1%81%D0%BB%D0%B5%D0%B4%D0%BD%D0%B5%D0%B9+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D0%B8&charset=utf-8 In PDF document text
    • http://fastpic.ru/In PDF document text
    • http://www.liveinternet.ru/clickIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4200/4200499_7b_skachat_vse_albomuy_torrent.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4211/4211761_skachat_mobilnuyu_versiyu_vk.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185674_rabochaya_programma_po_angliyskomu_yazuyku_5_klass_komarova_fgos.pdfIn PDF document text
    • http://www.microsoft.com/typography/fonts/YouIn PDF document text
    • http://www.microsoft.com/typography/fonts/In PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a911.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A911 7452 bytes
SHA-256: 7e48020d6337858872a3694e80e29b25fb96511e7bf99033d433ea975a8bea78
font_00_sfnt_off0002421f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2421F 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off00024fa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24FA2 15008 bytes
SHA-256: 212f461174c40098ed3e7b5dfcd83a19e742ea3b64c6c28944c43a757891bb65
font_02_sfnt_off00027dea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27DEA 14664 bytes
SHA-256: 5afc6b8f443e294548d524d0acb59aecb4dca813e5d538c24861c31c92e15a5b
font_04_sfnt_off0002beee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEEE 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002ce83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE83 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e

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