Malicious PDF — malware analysis report

Static analysis result for SHA-256 b99d37c6265b63e7…

MALICIOUS

PDF

186.3 KB Created: 2015-08-05 14:05:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c0ffa94d25b227483729427cf6de8828 SHA-1: d8ecfc6f58c0800f76846ab55217f11353c41275 SHA-256: b99d37c6265b63e7d08f4077a5fd960c98b2f382b4466ded3a0b738c6d3c4a6d
90 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is http://botcraftman.ru/. This suggests the document's purpose is to lure the user to this malicious site, likely for phishing or malware distribution. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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%B8%D1%80%D0%B8%D0%BD%D0%B0+%D0%B4%D1%83%D0%B1%D1%86%D0%BE%D0%B2%D0%B0+%D0%B8+%D0%BF%D0%BE%D0%BB%D0%B8%D0%BD%D0%B0+%D0%B3%D0%B0%D0%B3%D0%B0%D1%80%D0%B8%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D1%83+%D0%B7%D0%B0%D1%87%D0%B5%D0%BC+%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/6//4304/4304742_skachat_samuyu_pervuyu_versiyu_mayn_kraft_na_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304371_yero_moduy_fallout_new_vegas.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304909_mod_na_ves_dlya_stalker_ten_chernobuylya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024634.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24634 3556 bytes
font_01_sfnt_off000253b7.bin
78763fba3223e54c5c8459be67f0ab451a3aee3f55eca76c2fdf15a7b03373d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253B7 14220 bytes
font_02_sfnt_off0002809e.bin
2f174bce2bf89b86ed20b23e335462fb6c665daf7d579c7771c32fa68bc7e60f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2809E 14468 bytes
font_03_sfnt_off0002ab50.bin
35feb4fba66acde0f9c237d067cc73401c48ad96ec838accb963a06f826e48ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB50 6996 bytes
font_04_sfnt_off0002bf97.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF97 6084 bytes
font_05_sfnt_off0002cf2c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF2C 3752 bytes

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