Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8f7927fe2b55a22…

MALICIOUS

PDF

184.6 KB Created: 2015-07-24 11:23:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: da507785a24d30d020b76b70c41720e2 SHA-1: 1f428994508b84accde84b8c80b94bb802332116 SHA-256: e8f7927fe2b55a2223325d5c87c7caaca70f3e3d4f43b6806d761d528f45290a
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, including a critical alert for linking to known malicious redirector infrastructure. The primary malicious IOC is the URL http://botcraftman.ru/, which is likely used to deliver a secondary payload or redirect to a phishing site. The file's structure and the presence of embedded URLs suggest it's designed to lure users into clicking a malicious link.

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-7495044-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7495044-0
  • 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%BA%D0%B0%D1%81%D0%BB+3+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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//4190/4190965_skachat_minecraft_110_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191395_holostyak_ukraina_1_sezon_smotret_onlayn_na_russkom_yazuyke.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189394_luchshiy_optimizator_windows_7.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023fe7.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FE7 3556 bytes
font_01_sfnt_off00024d6a.bin
9027bb7fee1735c0060b175dfe164e645288bf5a8c7cc3689d75d6154c12033c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D6A 14728 bytes
font_02_sfnt_off00027b2a.bin
54a9def00a75807df7245774544ce9570a28c7fcb87478bb619e965107c3684a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B2A 14468 bytes
font_03_sfnt_off0002a5d6.bin
859931052900393ca70a6ce2be20f27da8f05d282d158bfdcad9673075b8cb3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5D6 6540 bytes
font_04_sfnt_off0002b86e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B86E 6084 bytes
font_05_sfnt_off0002c803.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C803 3752 bytes

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