Analysis
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max time kernel
152s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
15-06-2022 16:16
Static task
static1
Behavioral task
behavioral1
Sample
28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe
Resource
win7-20220414-en
General
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Target
28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe
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Size
1.7MB
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MD5
ae7aa046774eb7bb3aae0e8e04007fcc
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SHA1
7caa8e686204b63c507dc03d4657988c8ded2472
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SHA256
28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788
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SHA512
5fb4fff7606b770b14138fe556a64cd865a1150738ecaaa38a9dd8fe90bb364b350efc2a907e5b6389700b8fa8f87532a559b2dc9549960529933b9451ed6e8c
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
ransomware.defender.v.3.5.7-patch.exepid Process 4376 ransomware.defender.v.3.5.7-patch.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe -
Loads dropped DLL 2 IoCs
Processes:
ransomware.defender.v.3.5.7-patch.exepid Process 4376 ransomware.defender.v.3.5.7-patch.exe 4376 ransomware.defender.v.3.5.7-patch.exe -
Drops desktop.ini file(s) 2 IoCs
Processes:
28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exedescription ioc Process File created C:\Windows\assembly\Desktop.ini 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe File opened for modification C:\Windows\assembly\Desktop.ini 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exedescription pid Process procid_target PID 2964 set thread context of 4488 2964 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe 87 -
Drops file in Windows directory 3 IoCs
Processes:
28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exedescription ioc Process File opened for modification C:\Windows\assembly\Desktop.ini 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe File opened for modification C:\Windows\assembly 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe File created C:\Windows\assembly\Desktop.ini 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exepid Process 4488 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exeAUDIODG.EXE28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exedescription pid Process Token: SeDebugPrivilege 2964 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe Token: 33 2088 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 2088 AUDIODG.EXE Token: SeDebugPrivilege 4488 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe Token: 33 4488 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe Token: SeIncBasePriorityPrivilege 4488 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exepid Process 4488 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exedescription pid Process procid_target PID 2964 wrote to memory of 4376 2964 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe 83 PID 2964 wrote to memory of 4376 2964 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe 83 PID 2964 wrote to memory of 4376 2964 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe 83 PID 2964 wrote to memory of 4488 2964 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe 87 PID 2964 wrote to memory of 4488 2964 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe 87 PID 2964 wrote to memory of 4488 2964 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe 87 PID 2964 wrote to memory of 4488 2964 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe 87 PID 2964 wrote to memory of 4488 2964 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe 87 PID 2964 wrote to memory of 4488 2964 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe 87 PID 2964 wrote to memory of 4488 2964 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe 87 PID 2964 wrote to memory of 4488 2964 28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe"C:\Users\Admin\AppData\Local\Temp\28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2964 -
C:\Users\Admin\AppData\Roaming\ransomware.defender.v.3.5.7-patch.exe"C:\Users\Admin\AppData\Roaming\ransomware.defender.v.3.5.7-patch.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:4376
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C:\Users\Admin\AppData\Local\Temp\28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe"C:\Users\Admin\AppData\Local\Temp\28d9e1599d9929493db8c12a48029f33d60e6017a2aced3920dce8fae1b00788.exe"2⤵
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4488
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x320 0x2f81⤵
- Suspicious use of AdjustPrivilegeToken
PID:2088
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵PID:3404
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
33KB
MD5e4ec57e8508c5c4040383ebe6d367928
SHA1b22bcce36d9fdeae8ab7a7ecc0b01c8176648d06
SHA2568ad9e47693e292f381da42ddc13724a3063040e51c26f4ca8e1f8e2f1ddd547f
SHA51277d5cf66caf06e192e668fae2b2594e60a498e8e0ccef5b09b9710721a4cdb0c852d00c446fd32c5b5c85e739de2e73cb1f1f6044879fe7d237341bbb6f27822
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Filesize
463KB
MD597aedd5a683b05e0e48cb6b65b74eacf
SHA108c9cc1aaddb2843d4c6c4495aa21df1269ba18f
SHA2563310f031e2ca4fda494eb49b386fa33d63cbc797a1244d6a0350f80656e97e26
SHA51283c1f3a0b87407cbd403fc2dd66ee0676b01826085e8ba2e7349ce855da8442ad8a3f9021f10c4cd7dd31761571277eb3451ac1c05e5a8ed6b05624fb6a4d6e9
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Filesize
493KB
MD5a08d8b4101519dc1fda3b19687f794c5
SHA156258f9eb8d66902b61bf711f3c6c08c946d9deb
SHA25654bf9eb1a89bb1579800ca524e34a1c5411458e0fce86b166521e50a6fe0c652
SHA51220f6d1c4b8865c8bf71be75cea71119aa3feb7bb469cd6134b5cbefbf0740077f130189c52d67c7f1c8d3bfa6b41fb035a0ceef9510b0ef671466af8d15e6851
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Filesize
493KB
MD5a08d8b4101519dc1fda3b19687f794c5
SHA156258f9eb8d66902b61bf711f3c6c08c946d9deb
SHA25654bf9eb1a89bb1579800ca524e34a1c5411458e0fce86b166521e50a6fe0c652
SHA51220f6d1c4b8865c8bf71be75cea71119aa3feb7bb469cd6134b5cbefbf0740077f130189c52d67c7f1c8d3bfa6b41fb035a0ceef9510b0ef671466af8d15e6851