Malicious PDF — malware analysis report

Static analysis result for SHA-256 61de2699210e25ee…

MALICIOUS

PDF

185.8 KB Created: 2015-07-25 03:23:23 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 6817e6af0c55deab69a61172808a946c SHA-1: d59562b10f2ca2dff76991cb9397e58f81975c18 SHA-256: 61de2699210e25eebc3649e13dd9c5d6e0f7e7235cb025ff2bebee9e897f77f5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector, likely serving as a lure to a phishing or malware distribution site.

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%B5%D0%BB%D0%B5%D0%BD%D0%B0+%D0%BF%D0%B5%D1%82%D1%80%D0%BE%D0%B2%D0%B0+%D0%BB%D0%B5%D0%B9%D0%BD%D0%B0+3+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186703_skachat_igru_unturned_1_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184799_skachat_maynkraft_na_android_236.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189840_zhurnal_starshaya_medicinskaya_sestra_chitat_onlayn.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_off0002446f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2446F 3556 bytes
font_01_sfnt_off000251f2.bin
1f4bdb3af97b8f4cba953acf8dda710d82673c6b9451f42ab28e53be67aecb06		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251F2 14540 bytes
font_02_sfnt_off00027f54.bin
0bca4a5187d9a05a869cc7c2ac0502f7e9eaa0fdd0bc3fd716c78649f031c2e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F54 14468 bytes
font_03_sfnt_off0002aa05.bin
3e885f5c2d95d1ccac7d95f1b29646b353451e7910764a782ae6e0b44b8cd0c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA05 6744 bytes
font_04_sfnt_off0002bd5b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD5B 6084 bytes
font_05_sfnt_off0002ccf0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCF0 3752 bytes

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