Analysis
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max time kernel
124s -
max time network
161s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
24-05-2022 15:16
Static task
static1
Behavioral task
behavioral1
Sample
f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe
Resource
win7-20220414-en
General
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Target
f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe
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Size
438KB
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MD5
2cc77413fab88c5dced00c17af2c07c7
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SHA1
39a57cdbf9ece7abef069fdb32323bc716bdacd6
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SHA256
f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4
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SHA512
44aaa119a05559f65a04a0239f57fb83ce6c94f06caf0b5441cb7f5e3afb2bb175aedf8fdc7e74bd5497446fb0cdc5042db39e059777106d608cdd12584d9657
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
svchost.exepid process 3820 svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
svchost.exedescription pid process Token: SeDebugPrivilege 3820 svchost.exe Token: SeDebugPrivilege 3820 svchost.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exedescription pid process target process PID 4208 wrote to memory of 1452 4208 f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe schtasks.exe PID 4208 wrote to memory of 1452 4208 f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe schtasks.exe PID 4208 wrote to memory of 1452 4208 f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe schtasks.exe PID 4208 wrote to memory of 3820 4208 f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe svchost.exe PID 4208 wrote to memory of 3820 4208 f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe svchost.exe PID 4208 wrote to memory of 3820 4208 f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe"C:\Users\Admin\AppData\Local\Temp\f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4208 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\svchost.exe'"2⤵
- Creates scheduled task(s)
PID:1452
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C:\Users\Admin\AppData\Local\Temp\svchost.exe"C:\Users\Admin\AppData\Local\Temp\svchost.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3820
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