Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf1def4377391cfa…

MALICIOUS

PDF

185.4 KB Created: 2015-07-25 09:43:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 450750baeb2adb68bc09cb41ec8a1bf7 SHA-1: bfc65b42af461f31baa9c02c56048f17858912ed SHA-256: cf1def4377391cfa085552231444442e3de9ba1152f707d6d33b677ac1e5f696
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was identified as malicious due to a critical heuristic firing for a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely used to direct users to a malicious website. No scripts were extracted from this sample, limiting further analysis of its behavior.

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=windows+xp+chip+2015+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4199/4199214_skachat_ks_zombi_mod_s_botami.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192378_scaciati_gta_vice_city_deluxe.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4200/4200403_shema_kupeynogo_vagona.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a65a.bin
1b33d47a6bbfcf7fdaf434b40b24b210b75fd6d1713faa3d0a151f47994ccfde		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A65A 7368 bytes
font_00_sfnt_off00023e80.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E80 3556 bytes
font_01_sfnt_off00024c03.bin
f8370fc8a9ffdd96ecd42303b4a40b9e6122c5dcd861c7f98b44b2133fd56117		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C03 15116 bytes
font_02_sfnt_off00027a8a.bin
da4b9a2c883b6cc82e158198f5273855ea0d4d2a30552f5ce71972a3d5d6f772		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A8A 14880 bytes
font_04_sfnt_off0002bbea.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBEA 6084 bytes
font_05_sfnt_off0002cb7f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB7F 3752 bytes

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