Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8b8b2820e1b3bcb…

MALICIOUS

PDF

186.3 KB Created: 2015-08-08 10:43:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ac5f400a0a8854c5243af49be8236954 SHA-1: 8c0ddfe8adea6548f5bedee2db8ad63a239761bf SHA-256: e8b8b2820e1b3bcb124a8fd90316faededc0730e571fe65fc3f51297ee375c0e
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. No scripts were extracted from this sample, but the presence of the malicious link strongly suggests a phishing or malware delivery 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=%D1%81%D1%86%D0%B5%D0%BD%D0%B0%D1%80%D0%B8%D0%B9+%D1%87%D0%B5%D1%81%D1%82%D0%B2%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F+%D0%BF%D0%BE%D1%87%D1%82%D0%BD%D0%BE%D0%B3%D0%BE+%D0%B3%D1%80%D0%B0%D0%B6%D0%B4%D0%B0%D0%BD%D0%B8%D0%BD%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384106_elm327_bluetooth_kod_podklyucheniya.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383824_otvetuy_k_yegzamenu_ulgtu.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383936_garmin_etrex_venture_hc_kartuy_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024489.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24489 3556 bytes
font_01_sfnt_off0002520c.bin
1712c80f41a858c189aae94a2908c2a1e277387bd34b77014dc6d44541b51009		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2520C 15340 bytes
font_02_sfnt_off00028126.bin
f475c9a1ac5fe2eed19185dd3cba174eef503d960a4e97410604570efa3ed9b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28126 14624 bytes
font_03_sfnt_off0002ac0e.bin
77af88875c1658635783f90e78e8a200f931af98d75a1718187797b8f197a5bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC0E 6760 bytes
font_04_sfnt_off0002bf5b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF5B 6084 bytes
font_05_sfnt_off0002cef0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEF0 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.