Malicious PDF — malware analysis report

Static analysis result for SHA-256 4981b0488174a13b…

MALICIOUS

PDF

186.0 KB Created: 2015-07-28 18:59:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c8f6973f7c94b60c71f8678c0de31bdd SHA-1: 5dcbda246f83b1e51aefb398de7ca403dcae0d4d SHA-256: 4981b0488174a13b87233866bf6e3ad9aa817ec0ede0a605b0151695ebcb9266
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 strongly indicated maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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=Pc+%D0%B8%D0%B3%D1%80%D0%B0+monster+high+13+wishes+%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://img0.liveinternet.ru/images/attach/c/5//4214/4214670_avast_free_antivirus_kod_aktivacii_do_2038_goda.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192751_kod_dokumenta_1777_poyasnitelnaya_zapiska.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4205/4205061_windows_7_minimalnaya_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a8d9.bin
d9dfcdee5acda5417acd43c5c001bf7705ed2408c6dc1d977f6511e6ea7ec0f0		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A8D9 7256 bytes
font_00_sfnt_off00024153.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24153 3556 bytes
font_01_sfnt_off00024ed6.bin
4c8ebf80754edadcd0a7d269a591e0f3e2f33b61eb9d249f852322a0729200e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24ED6 14932 bytes
font_02_sfnt_off00027ce9.bin
8e983fc7bbb93a77cf12df9fb3f7ea0fa161a23d5b7489b61381839fb759d7da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CE9 15056 bytes
font_04_sfnt_off0002be01.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE01 6084 bytes
font_05_sfnt_off0002cd96.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD96 3752 bytes

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