Analysis
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max time kernel
185s -
max time network
189s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
03-05-2022 20:09
Static task
static1
Behavioral task
behavioral1
Sample
40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c.exe
Resource
win10v2004-20220414-en
General
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Target
40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c.exe
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Size
26KB
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MD5
6aa840d90f457f13082c87f64d952a41
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SHA1
10387f6dd42bf4fc9309f826aed9d4e169fb2c08
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SHA256
40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c
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SHA512
6788e8d3bb92fe044b235f7b856303b9cd13a50d64d493eeac99aef5fa3515c8499f4d7de4da3c8bd32472deefe15da28043717d0bb715af9c24dafc8ad58f9b
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
Client.exepid process 3740 Client.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation 40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c.exeClient.exedescription pid process Token: SeDebugPrivilege 4196 40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c.exe Token: SeDebugPrivilege 3740 Client.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c.exedescription pid process target process PID 4196 wrote to memory of 3740 4196 40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c.exe Client.exe PID 4196 wrote to memory of 3740 4196 40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c.exe Client.exe PID 4196 wrote to memory of 3740 4196 40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c.exe Client.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c.exe"C:\Users\Admin\AppData\Local\Temp\40fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4196 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\Client.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3740
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
26KB
MD56aa840d90f457f13082c87f64d952a41
SHA110387f6dd42bf4fc9309f826aed9d4e169fb2c08
SHA25640fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c
SHA5126788e8d3bb92fe044b235f7b856303b9cd13a50d64d493eeac99aef5fa3515c8499f4d7de4da3c8bd32472deefe15da28043717d0bb715af9c24dafc8ad58f9b
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Filesize
26KB
MD56aa840d90f457f13082c87f64d952a41
SHA110387f6dd42bf4fc9309f826aed9d4e169fb2c08
SHA25640fc54d93205c2049c62da528426414b2bbe1428b22ed6cea5cef4be324e873c
SHA5126788e8d3bb92fe044b235f7b856303b9cd13a50d64d493eeac99aef5fa3515c8499f4d7de4da3c8bd32472deefe15da28043717d0bb715af9c24dafc8ad58f9b