Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8eff5d8f29f57ab…

MALICIOUS

PDF

186.1 KB Created: 2015-08-08 15:22:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-10-16
MD5: 2a99e5ea193f4aef22f8158b52893dd1 SHA-1: 8059906c55e1aef4083674e4df5810b0d22c4ba0 SHA-256: b8eff5d8f29f57ab13f9fc061697b32e2639c5b70c327cbe5c44501fd789febc
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely part of a phishing campaign or serves as a lure to download further malicious content. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact payload.

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=%D1%87%D0%B5%D1%80%D1%82%D0%B5%D0%B6%D0%B8+%D0%BA%D0%BE%D0%BB%D0%BE%D0%BD%D0%BE%D0%BA+%D0%B0%D0%BA%D1%83%D1%81%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D1%85+%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC+dwg&charset=utf-8 In PDF document text
    • http://fastpic.ru/In PDF document text
    • http://www.liveinternet.ru/clickIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383948_skachat_kartu_kazahstana_dlya_navitel_besplatno_2013.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386388_taganrogskiy_avtovokzal_raspisanie.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384174_resident_evil_4_skachat_torrent_besplatno.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_off000243bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x243BD 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off00025140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25140 14528 bytes
SHA-256: dae537d62e153e69e5eb7501fa30a85e8e56f7535035f13c634f4bf6944ab101
font_02_sfnt_off00027ebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27EBC 14716 bytes
SHA-256: 3dbc4635e35a7ce4ceb163c6c6b4d61f1c4cef8e36f26449f9c35defbac42e69
font_03_sfnt_off0002aa4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA4A 6980 bytes
SHA-256: aab831a46500b64565a2a3ec9d9ad5cb8fb8de06adaa73518530c8afa472aeb7
font_04_sfnt_off0002be8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE8D 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002ce22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE22 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e

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