runningrat | f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521

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\\240597656.dll"	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe

Executes dropped EXE 1 IoCs

pid	Process
1996	SRDSL.exe

Loads dropped DLL 3 IoCs

pid	Process
3100	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe
3412	svchost.exe
1996	SRDSL.exe

Creates a Windows Service
persistence

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\SRDSL.exe	svchost.exe
File opened for modification	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
2968	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3100	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe
3100	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3100	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3100	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3100 wrote to memory of 3224	3100	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe	84
PID 3100 wrote to memory of 3224	3100	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe	84
PID 3100 wrote to memory of 3224	3100	f59d23fcb44d07bd1cfc3852bc17b60cc4c35a21a66125953d6f5f697131a521.exe	84
PID 3224 wrote to memory of 2968	3224	cmd.exe	86
PID 3224 wrote to memory of 2968	3224	cmd.exe	86
PID 3224 wrote to memory of 2968	3224	cmd.exe	86
PID 3412 wrote to memory of 1996	3412	svchost.exe	90
PID 3412 wrote to memory of 1996	3412	svchost.exe	90
PID 3412 wrote to memory of 1996	3412	svchost.exe	90

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
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3100
- 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:3224
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 1
    3⤵
    - Runs ping.exe
    PID:2968

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SRDSL"
1⤵
PID:1960

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:3412
- C:\Windows\SysWOW64\SRDSL.exe
  C:\Windows\system32\SRDSL.exe "c:\users\admin\appdata\local\temp\240597656.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\240597656.dll

Filesize
25KB

MD5
6a7114eb7f0ab9a6406ef61947aed405

SHA1
b9b73a30867a32d84dd4586330b451fca611c90d

SHA256
45a684f6b92724df6d38f9e71b65013ca7d1c588dd5d85df5039e50d70993ff7

SHA512
6437a6e046b0746cae987d5b7f291bb510db378cab9796ce98d799c221bdb48aa3382197507792cdc38babdf7875dd9134bd7167c3a6f2acc85e1c91534dc8b8

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

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads