Malicious PDF — malware analysis report

Static analysis result for SHA-256 8344e0ff6311c750…

MALICIOUS

PDF

186.6 KB Created: 2015-07-25 23:10:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-11-20
MD5: 51695c7336910adf118a406c87ab0ef4 SHA-1: 0f356627d4f03dfab4697e64fb44110a737fb6db SHA-256: 8344e0ff6311c750d670c003b665f67866f0d2d5df092fa419dce3578e953fc5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

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%B4%D0%BE%D0%BA%D0%B0%D0%B7%D0%B0%D1%82%D0%B5%D0%BB%D1%8C%D1%81%D1%82%D0%B2%D0%BE+%D1%82%D0%B5%D0%BE%D1%80%D0%B5%D0%BC+%D0%BF%D0%BE+%D0%B3%D0%B5%D0%BE%D0%BC%D0%B5%D1%82%D1%80%D0%B8%D0%B8+7+%D0%BA%D0%BB%D0%B0%D1%81%D1%81&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//4200/4200625_ramki_dlya_pozdravitelnogo_adresa_skachat.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4205/4205175_scenariy_na_yubiley_55_let_mame_ot_docheri.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189782_servera_s_besplatnoy_adminkoy_na_maynkraft_152.pdfIn PDF document text
    • http://www.microsoft.com/typography/fonts/In PDF document text
    • http://www.microsoft.com/typography/fonts/YouIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024674.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24674 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off000253f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x253F7 14944 bytes
SHA-256: 22a06057ba18d47b70991fc48052716898a8172262494de096870b053d53cb5d
font_02_sfnt_off00028293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28293 14512 bytes
SHA-256: ebc70e6ef30339ff187cc49a5a3f3565841599caf8db9f68e68a0ab4cfbd168d
font_03_sfnt_off0002ad77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD77 6664 bytes
SHA-256: adc1be2401a09c2802a10655a0cd2a856729de07cd1bc6e744dadf1a31457902
font_04_sfnt_off0002c090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C090 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002d025.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D025 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e

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