Analysis
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max time kernel
148s -
max time network
154s -
platform
windows10-1703_x64 -
resource
win10-20230703-en -
resource tags
arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system -
submitted
21-08-2023 15:42
Static task
static1
General
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Target
fa6af7e23ad1d78e2fa4ed2d372a0990a78bcc3a49bbd07c75c6ec44e3e8736c.exe
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Size
247KB
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MD5
eb2bc869689c92c21e68f3e684ccea37
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SHA1
54ed976bccb60e2ff754c94310a913c3063316a0
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SHA256
fa6af7e23ad1d78e2fa4ed2d372a0990a78bcc3a49bbd07c75c6ec44e3e8736c
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SHA512
46d322eefc0eee6555d08a0cb0cdf2e6b1a3400bdc447499484cdd2800c569c73b95e0759f6984c7af38dbb9ba5a8d4ddb5796cd8cc9b0d9bf86f39f16db58a5
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SSDEEP
3072:g/UfafnkXTXbYFxo5ob07ABrXSHMNQ/wCuGw0J0pokjMeltBitKdAZNAQq+8Vih:g/inXbYFxoz7ANEwnGw0iikivZNLqrY
Malware Config
Signatures
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.NET Reactor proctector 3 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
Processes:
resource yara_rule behavioral1/memory/2764-117-0x00000000005E0000-0x0000000000622000-memory.dmp net_reactor C:\Users\Admin\AppData\Roaming\DiscordUppdataRas.exe net_reactor C:\Users\Admin\AppData\Roaming\DiscordUppdataRas.exe net_reactor -
Executes dropped EXE 1 IoCs
Processes:
DiscordUppdataRas.exepid process 4140 DiscordUppdataRas.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).
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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:
DiscordUppdataRas.exedescription pid process Token: SeDebugPrivilege 4140 DiscordUppdataRas.exe Token: SeDebugPrivilege 4140 DiscordUppdataRas.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
fa6af7e23ad1d78e2fa4ed2d372a0990a78bcc3a49bbd07c75c6ec44e3e8736c.exedescription pid process target process PID 2764 wrote to memory of 2836 2764 fa6af7e23ad1d78e2fa4ed2d372a0990a78bcc3a49bbd07c75c6ec44e3e8736c.exe schtasks.exe PID 2764 wrote to memory of 2836 2764 fa6af7e23ad1d78e2fa4ed2d372a0990a78bcc3a49bbd07c75c6ec44e3e8736c.exe schtasks.exe PID 2764 wrote to memory of 2836 2764 fa6af7e23ad1d78e2fa4ed2d372a0990a78bcc3a49bbd07c75c6ec44e3e8736c.exe schtasks.exe PID 2764 wrote to memory of 4140 2764 fa6af7e23ad1d78e2fa4ed2d372a0990a78bcc3a49bbd07c75c6ec44e3e8736c.exe DiscordUppdataRas.exe PID 2764 wrote to memory of 4140 2764 fa6af7e23ad1d78e2fa4ed2d372a0990a78bcc3a49bbd07c75c6ec44e3e8736c.exe DiscordUppdataRas.exe PID 2764 wrote to memory of 4140 2764 fa6af7e23ad1d78e2fa4ed2d372a0990a78bcc3a49bbd07c75c6ec44e3e8736c.exe DiscordUppdataRas.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\fa6af7e23ad1d78e2fa4ed2d372a0990a78bcc3a49bbd07c75c6ec44e3e8736c.exe"C:\Users\Admin\AppData\Local\Temp\fa6af7e23ad1d78e2fa4ed2d372a0990a78bcc3a49bbd07c75c6ec44e3e8736c.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2764 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\DiscordUppdataRas.exe'"2⤵
- Creates scheduled task(s)
PID:2836
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C:\Users\Admin\AppData\Roaming\DiscordUppdataRas.exe"C:\Users\Admin\AppData\Roaming\DiscordUppdataRas.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4140
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
247KB
MD5eb2bc869689c92c21e68f3e684ccea37
SHA154ed976bccb60e2ff754c94310a913c3063316a0
SHA256fa6af7e23ad1d78e2fa4ed2d372a0990a78bcc3a49bbd07c75c6ec44e3e8736c
SHA51246d322eefc0eee6555d08a0cb0cdf2e6b1a3400bdc447499484cdd2800c569c73b95e0759f6984c7af38dbb9ba5a8d4ddb5796cd8cc9b0d9bf86f39f16db58a5
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Filesize
247KB
MD5eb2bc869689c92c21e68f3e684ccea37
SHA154ed976bccb60e2ff754c94310a913c3063316a0
SHA256fa6af7e23ad1d78e2fa4ed2d372a0990a78bcc3a49bbd07c75c6ec44e3e8736c
SHA51246d322eefc0eee6555d08a0cb0cdf2e6b1a3400bdc447499484cdd2800c569c73b95e0759f6984c7af38dbb9ba5a8d4ddb5796cd8cc9b0d9bf86f39f16db58a5