runningrat | f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521

Analysis

max time kernel
146s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
15-06-2024 07:48

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General

Target

f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe
Size

48KB
MD5

7d8056785948284e8f6b89004886c936
SHA1

fb954f84b2c0afffb5e788b04029563685054dee
SHA256

f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521
SHA512

dc11f4669102af7fa6f5b44ead415e12317d65d2847f806a1ffc92a3b5a626a0c74d2c49592b7259f56a0299748a8599e5ab6983b7dec335a04106d44312aa06
SSDEEP

768:zynb12Aw5J6HC4kq5Jp9bjAzhyY55J+NStcEeUlyqgZl4p67ChPC:Ub1MsHz3JDwhyWr+N95OTga6R

Score

10^/10

runningrat persistence rat

Malware Config

Signatures

RunningRat
RunningRat is a remote access trojan first seen in 2018.
rat runningrat

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SRDSL\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\240613203.dll"	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe

Executes dropped EXE 1 IoCs

pid	Process
948	SRDSL.exe

Loads dropped DLL 3 IoCs

pid	Process
4924	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe
4736	svchost.exe
948	SRDSL.exe

Creates a Windows Service
persistence

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\SRDSL.exe	svchost.exe
File created	C:\Windows\SysWOW64\SRDSL.exe	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5032	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4924	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe
4924	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4924	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4924	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4924 wrote to memory of 4576	4924	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe	82
PID 4924 wrote to memory of 4576	4924	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe	82
PID 4924 wrote to memory of 4576	4924	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe	82
PID 4576 wrote to memory of 5032	4576	cmd.exe	84
PID 4576 wrote to memory of 5032	4576	cmd.exe	84
PID 4576 wrote to memory of 5032	4576	cmd.exe	84
PID 4736 wrote to memory of 948	4736	svchost.exe	85
PID 4736 wrote to memory of 948	4736	svchost.exe	85
PID 4736 wrote to memory of 948	4736	svchost.exe	85

C:\Users\Admin\AppData\Local\Temp\f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe
"C:\Users\Admin\AppData\Local\Temp\f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe"
1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4924
- 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\f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4576
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 1
    3⤵
    - Runs ping.exe
    PID:5032

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SRDSL"
1⤵
PID:1008

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SRDSL"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4736
- C:\Windows\SysWOW64\SRDSL.exe
  C:\Windows\system32\SRDSL.exe "c:\users\admin\appdata\local\temp\240613203.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\240613203.dll

Filesize
25KB

MD5
6a7114eb7f0ab9a6406ef61947aed405

SHA1
b9b73a30867a32d84dd4586330b451fca611c90d

SHA256
45a684f6b92724df6d38f9e71b65013ca7d1c588dd5d85df5039e50d70993ff7

SHA512
6437a6e046b0746cae987d5b7f291bb510db378cab9796ce98d799c221bdb48aa3382197507792cdc38babdf7875dd9134bd7167c3a6f2acc85e1c91534dc8b8

Download Submit
C:\Windows\SysWOW64\SRDSL.exe

Filesize
40KB

MD5
22bb5bd901d8b25ac5b41edbb7d5053e

SHA1
8a935dd8d7e104fc553ff7e8b54a404f7b079334

SHA256
8dcaeeebef9b9f3d41d295db145ffb3850f309d089c08125c7fa7034db5fd80e

SHA512
cc3fb68fd6791a08e4a7d1a8db8d07cfcc8c9b9dceec10b53f0cb7ee86473303a19be4f23e379f84c59e02d0568e7c066e21cd1300f6032dac4ba52f609f62e7

Download Submit