Analysis
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max time kernel
150s -
max time network
162s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
28-11-2022 13:22
Static task
static1
Behavioral task
behavioral1
Sample
90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe
Resource
win10v2004-20221111-en
General
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Target
90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe
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Size
256KB
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MD5
f7af4a7c9b22da810861a6bd07c55a87
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SHA1
a8d832d884d94372f6dc8f9a3718eb3b4db1ee09
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SHA256
90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041
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SHA512
feeadc83c12b5d8d678b8c1078b48de19fa6bea35224d84e7b1859c79ac8661836c25b9fa8dd5994fe2841cf08adea60864c4d94b43dc7861729174daf7b9ca6
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SSDEEP
6144:BcEWAuYkSubM5cAhVIdnwMVtyeelQikCwxjqdsCWTz4M:2hSSS5YlVtyeklPujqdmT9
Malware Config
Signatures
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Drops startup file 1 IoCs
Processes:
explorer.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dfb5f6db.exe explorer.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
explorer.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\dfb5f6d = "C:\\dfb5f6db\\dfb5f6db.exe" explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*fb5f6d = "C:\\dfb5f6db\\dfb5f6db.exe" explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\dfb5f6db = "C:\\Users\\Admin\\AppData\\Roaming\\dfb5f6db.exe" explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*fb5f6db = "C:\\Users\\Admin\\AppData\\Roaming\\dfb5f6db.exe" explorer.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 7 myexternalip.com 3 ip-addr.es 5 myexternalip.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exedescription pid process target process PID 1060 set thread context of 908 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 1984 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exepid process 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exeexplorer.exepid process 908 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe 1728 explorer.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 1884 vssvc.exe Token: SeRestorePrivilege 1884 vssvc.exe Token: SeAuditPrivilege 1884 vssvc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exepid process 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exeexplorer.exedescription pid process target process PID 1060 wrote to memory of 908 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe PID 1060 wrote to memory of 908 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe PID 1060 wrote to memory of 908 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe PID 1060 wrote to memory of 908 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe PID 1060 wrote to memory of 908 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe PID 1060 wrote to memory of 908 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe PID 1060 wrote to memory of 908 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe PID 1060 wrote to memory of 908 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe PID 1060 wrote to memory of 908 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe PID 1060 wrote to memory of 908 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe PID 1060 wrote to memory of 908 1060 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe PID 908 wrote to memory of 1728 908 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe explorer.exe PID 908 wrote to memory of 1728 908 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe explorer.exe PID 908 wrote to memory of 1728 908 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe explorer.exe PID 908 wrote to memory of 1728 908 90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe explorer.exe PID 1728 wrote to memory of 2028 1728 explorer.exe svchost.exe PID 1728 wrote to memory of 2028 1728 explorer.exe svchost.exe PID 1728 wrote to memory of 2028 1728 explorer.exe svchost.exe PID 1728 wrote to memory of 2028 1728 explorer.exe svchost.exe PID 1728 wrote to memory of 1984 1728 explorer.exe vssadmin.exe PID 1728 wrote to memory of 1984 1728 explorer.exe vssadmin.exe PID 1728 wrote to memory of 1984 1728 explorer.exe vssadmin.exe PID 1728 wrote to memory of 1984 1728 explorer.exe vssadmin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe"C:\Users\Admin\AppData\Local\Temp\90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1060 -
C:\Users\Admin\AppData\Local\Temp\90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exeC:\Users\Admin\AppData\Local\Temp\90e7babb24c19f8f9f5d9a708fc1cbd5dcd16609c1c18c85071ee15ff4ca6041.exe2⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:908 -
C:\Windows\syswow64\explorer.exe"C:\Windows\syswow64\explorer.exe"3⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1728 -
C:\Windows\syswow64\svchost.exe-k netsvcs4⤵PID:2028
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C:\Windows\syswow64\vssadmin.exevssadmin.exe Delete Shadows /All /Quiet4⤵
- Interacts with shadow copies
PID:1984
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1884