Analysis
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max time kernel
114s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
22-04-2024 14:31
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20240226-en
General
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Target
tmp.exe
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Size
48KB
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MD5
d65c7a3cb25eb79571854b5fab17be35
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SHA1
6c980e0357dea99771704f3f122d369d90fefd5f
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SHA256
7d693069636a46d7d430ced104854e7a19da09fc0b1e9c43e6ac55ab52bd8eea
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SHA512
bcd1a7598f1740e3838592c4a853e04caa78709a98454be0f8ab7cc2a4973c12e639192f676504ee97c7cbc6e34278011d998656ac8f81dccfc56e7455eb7678
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SSDEEP
768:zynb12Aw5J6HC4kq5Jp9bjAzhyY55J+NStcEeUlyqgZl4p67VhPC:Ub1MsHz3JDwhyWr+N95OTga6u
Malware Config
Signatures
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RunningRat
RunningRat is a remote access trojan first seen in 2018.
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Sets DLL path for service in the registry 2 TTPs 1 IoCs
Processes:
tmp.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SICK\Parameters\ServiceDll = "C:\\Windows\\system32\\240639203.dll" tmp.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
tmp.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation tmp.exe -
Executes dropped EXE 1 IoCs
Processes:
SICK.exepid process 2972 SICK.exe -
Loads dropped DLL 3 IoCs
Processes:
tmp.exesvchost.exeSICK.exepid process 1836 tmp.exe 5096 svchost.exe 2972 SICK.exe -
Creates a Windows Service
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Drops file in System32 directory 3 IoCs
Processes:
tmp.exesvchost.exedescription ioc process File created C:\Windows\SysWOW64\240639203.dll tmp.exe File created C:\Windows\SysWOW64\SICK.exe svchost.exe File opened for modification C:\Windows\SysWOW64\SICK.exe svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
SICK.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 SICK.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz SICK.exe -
Modifies data under HKEY_USERS 5 IoCs
Processes:
SICK.exedescription ioc process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7" SICK.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum SICK.exe Key created \REGISTRY\USER\.DEFAULT\Software SICK.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft SICK.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie SICK.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
tmp.exepid process 1836 tmp.exe 1836 tmp.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
tmp.exedescription pid process Token: SeIncBasePriorityPrivilege 1836 tmp.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
tmp.exepid process 1836 tmp.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
tmp.execmd.exesvchost.exedescription pid process target process PID 1836 wrote to memory of 1764 1836 tmp.exe cmd.exe PID 1836 wrote to memory of 1764 1836 tmp.exe cmd.exe PID 1836 wrote to memory of 1764 1836 tmp.exe cmd.exe PID 1764 wrote to memory of 3464 1764 cmd.exe PING.EXE PID 1764 wrote to memory of 3464 1764 cmd.exe PING.EXE PID 1764 wrote to memory of 3464 1764 cmd.exe PING.EXE PID 5096 wrote to memory of 2972 5096 svchost.exe SICK.exe PID 5096 wrote to memory of 2972 5096 svchost.exe SICK.exe PID 5096 wrote to memory of 2972 5096 svchost.exe SICK.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Sets DLL path for service in the registry
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1836 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\tmp.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1764 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 13⤵
- Runs ping.exe
PID:3464
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "SICK"1⤵PID:2364
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "SICK"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:5096 -
C:\Windows\SysWOW64\SICK.exeC:\Windows\system32\SICK.exe "c:\windows\system32\240639203.dll",MainThread2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Modifies data under HKEY_USERS
PID:2972
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2268 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:81⤵PID:1796
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
25KB
MD5aa4ed83fc3f6255e1617fe39541fb1f4
SHA1945c3ae4cb8eca8d2410a7e0cd4e30f27d76c1fb
SHA2568060755c7df499ccce82afa6adc0086c38540a01d2fb0b72b2488edcbe24e984
SHA512dcf5b167eda97c1a20397742851e676c0272354879d80646e8c0d4e9c5042b678bb44edd2e42825afc328becd31b75695c6adbca31e7c5c941e8923965ab30c2
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Filesize
60KB
MD5889b99c52a60dd49227c5e485a016679
SHA18fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA2566cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
SHA51208933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641