Malicious PDF — malware analysis report

Static analysis result for SHA-256 03ac2885528d4748…

MALICIOUS

PDF

185.4 KB Created: 2015-07-24 05:31:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 4f234310b8de2dc45008f59fc8496749 SHA-1: 48ee1e93ff21281b585cb9dbeee2df2c85ee1aca SHA-256: 03ac2885528d4748f9229fb6510603ae6071aa8fc050107e5a3fcadfab6fd5c2
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is confirmed to be part of a malicious redirector chain. This suggests the document's primary purpose is to lure the user to a malicious site, likely for phishing or malware distribution.

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%90%D0%BD%D0%B3%D0%BB%D0%BE+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B8%D0%B9+%D1%81%D0%BB%D0%BE%D0%B2%D0%B0%D1%80%D1%8C+%D1%82%D1%80%D0%B0%D0%BD%D1%81%D0%BA%D1%80%D0%B8%D0%BF%D1%86%D0%B8%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185568_skachat_igru_baba_yaga_poydi_tuda_ne_znayu_kuda_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185359_skachat_kartuy_navitel_dlya_navigatora_besplatno_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185995_tamara_lisickaya_idiotki_skachat_besplatno.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000243af.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243AF 3556 bytes
font_01_sfnt_off00025132.bin
b548cdd35c134ad1f781e227f6e6cff97ee6067fab92f1e0a890b9bfb77965c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25132 14212 bytes
font_02_sfnt_off00027e14.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E14 14468 bytes
font_03_sfnt_off0002a8c7.bin
ccfcfff16f836864a3c15ab4e6e78d7a32fecfed8333c83d65cc3a5212b4b272		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A8C7 6628 bytes
font_04_sfnt_off0002bbb5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBB5 6084 bytes
font_05_sfnt_off0002cb4a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB4A 3752 bytes

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