Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c41071b5bff4a36…

MALICIOUS

PDF

184.8 KB Created: 2015-07-24 12:23:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 33560456a4cc55384f0bc5015532a519 SHA-1: e6699a6db22c3029162040d61bd08af50845dd83 SHA-256: 0c41071b5bff4a366512926a4452f3c51565e6e3a6337bf1bac182ff445148f7
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF was flagged by multiple heuristics as malicious, including a critical alert for redirecting to known malicious infrastructure. The embedded URL http://botcraftman.ru/... is identified as a malicious redirector, indicating the PDF's primary purpose is to lure the user to a harmful site. No scripts were extracted, but the PDF structure and the malicious URL strongly suggest it's a dropper or phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7493638-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7493638-0
  • 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%94%D0%B5%D1%82%D0%B8+%D0%B3%D0%BE%D0%BB%D1%8B%D1%85+%D0%B8%D0%BD%D1%82%D0%B8%D0%BC+%D1%84%D0%BE%D1%82%D0%BE+%D0%B2+%D0%BC%D0%BE%D1%80%D0%B5%D0%BF%D0%BB%D1%8F%D0%B6%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191541_skachat_komissar_vse_pesni_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191475_skolko_dosok_v_1_kube_tablica.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191733_lovushka_dlya_nevestuy_skachat_torrent.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_off0002409e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2409E 3556 bytes
font_01_sfnt_off00024e21.bin
57a8b43aad856f465fbb5f38a3264dc1f8cbd0c92adb068e382e86cba33ce4eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E21 14388 bytes
font_02_sfnt_off00027b64.bin
cf606cdc8ecd6b0b3333ed60481ce75c7a7f3e7d35a853591c3ed71fbd7aec07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B64 14532 bytes
font_03_sfnt_off0002a651.bin
2662c49c26dc00900a65f3198998fad8b57ca3c512464257369c43836a566ea0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A651 6736 bytes
font_04_sfnt_off0002b997.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B997 6084 bytes
font_05_sfnt_off0002c92c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C92C 3752 bytes

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