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| File name: | Build.rar |
| Full analysis: | https://app.any.run/tasks/c692ffa7-7932-4e98-9887-d48ba201c5e7 |
| Verdict: | Malicious activity |
| Analysis date: | October 05, 2022, 02:47:32 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-rar |
| File info: | RAR archive data, v5 |
| MD5: | ED3553BE7E42F01793EF5C8530D2FFBA |
| SHA1: | A4F5F475D081A71231921DE553D8330F86A62787 |
| SHA256: | 88373103F20810B5958CCA8D9674153ACE21DCE27B56F57C3657C494DCC0B942 |
| SSDEEP: | 1536:wfsbRmbo0ZxNFQbjxTT/JpY8bT7kBACtS8hgdD6Cdhpy:wLMaNUj9JZnQBACt9KJ6CdhA |
MALICIOUS
Drops executable file immediately after starts
- WinRAR.exe (PID: 1524)
Application was dropped or rewritten from another process
- Build.exe (PID: 2324)
SUSPICIOUS
Reads the computer name
- WinRAR.exe (PID: 1524)
- Build.exe (PID: 2324)
Checks supported languages
- WinRAR.exe (PID: 1524)
- Build.exe (PID: 2324)
- cmd.exe (PID: 2404)
Drops a file with a compile date too recent
- WinRAR.exe (PID: 1524)
Executable content was dropped or overwritten
- WinRAR.exe (PID: 1524)
Reads Environment values
- Build.exe (PID: 2324)
Starts CMD.EXE for commands execution
- Build.exe (PID: 2324)
Starts CHOICE.EXE (used to create a delay)
- cmd.exe (PID: 2404)
Uses TASKKILL.EXE to kill process
- cmd.exe (PID: 2404)
INFO
Manual execution by user
- Build.exe (PID: 2324)
Checks supported languages
- taskkill.exe (PID: 2784)
- choice.exe (PID: 1968)
Reads the computer name
- taskkill.exe (PID: 2784)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .rar | | | RAR compressed archive (v5.0) (61.5) |
|---|---|---|
| .rar | | | RAR compressed archive (gen) (38.4) |
Total processes
41
Monitored processes
5
Malicious processes
1
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1524 | "C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\Build.rar" | C:\Program Files\WinRAR\WinRAR.exe | Explorer.EXE | ||||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Version: 5.91.0 Modules
| |||||||||||||||
| 2324 | "C:\Users\admin\Desktop\Build.exe" | C:\Users\admin\Desktop\Build.exe | — | Explorer.EXE | |||||||||||
User: admin Integrity Level: MEDIUM Description: RedLine Exit code: 1 Version: 1.0.0.0 Modules
| |||||||||||||||
| 2404 | "cmd.exe" /C taskkill /F /PID 2324 && choice /C Y /N /D Y /T 3 & Del "C:\Users\admin\Desktop\Build.exe" | C:\Windows\system32\cmd.exe | — | Build.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2784 | taskkill /F /PID 2324 | C:\Windows\system32\taskkill.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Terminates Processes Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1968 | choice /C Y /N /D Y /T 3 | C:\Windows\system32\choice.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Offers the user a choice Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
1 417
Read events
1 395
Write events
22
Delete events
0
Modification events
| (PID) Process: | (1524) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtBMP |
Value: | |||
| (PID) Process: | (1524) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtIcon |
Value: | |||
| (PID) Process: | (1524) WinRAR.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (1524) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 2 |
Value: C:\Users\admin\Desktop\virtio_ivshmem_master_build.zip | |||
| (PID) Process: | (1524) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 1 |
Value: C:\Users\admin\Desktop\Win7-KB3191566-x86.zip | |||
| (PID) Process: | (1524) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\AppData\Local\Temp\Build.rar | |||
| (PID) Process: | (1524) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (1524) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (1524) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (1524) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1524 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DRa1524.21704\Build.exe | executable | |
MD5:1035BBF6B782B7A8819FA9BC616A9657 | SHA256:4060699BE22D52CD3753FA0BB8D3147A7B14B4EE9769013F2F0AD284586911CB | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
0
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report