Malicious PDF — malware analysis report

Static analysis result for SHA-256 184d5c2f1f46f54f…

MALICIOUS

PDF

185.9 KB Created: 2015-08-05 13:18:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b86f6bf63728fd05a3c5279f9e996bb9 SHA-1: 80f243480e41471e45fb335e68f1c597f52a2b84 SHA-256: 184d5c2f1f46f54fb7ad17cb802755a1133dce1698094ef14043aad1daed06f3
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 highly suspicious and likely serves as a lure to a malicious site. While no scripts were extracted, the presence of this malicious link strongly suggests a phishing or malware distribution attempt.

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%B8%D0%BD%D1%82%D0%B5%D1%80%D0%B5%D1%81%D0%BD%D1%8B%D0%B9+%D1%81%D1%86%D0%B5%D0%BD%D0%B0%D1%80%D0%B8%D0%B9+%D0%B2%D1%8B%D0%BF%D1%83%D1%81%D0%BA%D0%BD%D0%BE%D0%B3%D0%BE+%D0%B2+4+%D0%BA%D0%BB%D0%B0%D1%81%D1%81%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304438_personalizaciya_dlya_rabochego_stola_windows_7_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304432_skachat_stalker_voron_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304439_shablon_lending_peydzh.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_off000243c2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243C2 3556 bytes
font_01_sfnt_off00025145.bin
2368a8e19731122a2f439b72160bb1899277e8fc72b5c9c0dfce0de73fb03147		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25145 14904 bytes
font_02_sfnt_off00028032.bin
b25a878c38df03084b80507fde4ae109db85ec44b7dc37b32731de4875b7e8ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28032 14468 bytes
font_03_sfnt_off0002aae7.bin
3b64fb27d9c7fc7c17f95f2930207eaed9b4cb1098d2faa4fd690e0b6271607d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AAE7 6628 bytes
font_04_sfnt_off0002bdcd.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDCD 6084 bytes
font_05_sfnt_off0002cd62.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD62 3752 bytes

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