runningrat | fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974

Analysis

max time kernel
125s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2025 02:49

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General

Target

JaffaCakes118_d8f2a7d4fb066f89ff7806603ea0192a.exe
Size

68KB
MD5

d8f2a7d4fb066f89ff7806603ea0192a
SHA1

f75e9b15ae4c7ab7160cc9e3ae668bcf545af03a
SHA256

fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974
SHA512

6ffaea68d23798bebed122cbc4334c1db1c0cddf3e07beb7a641f1ba91197c2110c7d2f46bb5d57d9db8828230020da71cd7a9df3a6d04514b02fd532cfc2631
SSDEEP

768:BCB8S+OR7dOahyoHokBtqN74W7bZZmYb9PyzcjRlYlwa6NVdkPnJJMIzDV:BHJaAoHoc2x7bZoYBAcQlwJdM3

Score

10^/10

runningrat discovery persistence rat

Malware Config

Extracted

Family

runningrat

www.wulei168.pw

Signatures

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

RunningRat payload 1 IoCs

resource	yara_rule
behavioral2/memory/4032-0-0x0000000010000000-0x000000001000F000-memory.dmp	family_runningrat

Runningrat family
runningrat

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SRDSL\Parameters\ServiceDll = "C:\\Windows\\system32\\240626671.dll"	JaffaCakes118_d8f2a7d4fb066f89ff7806603ea0192a.exe

Executes dropped EXE 1 IoCs

pid	Process
832	SRDSL.exe

Loads dropped DLL 4 IoCs

pid	Process
4032	JaffaCakes118_d8f2a7d4fb066f89ff7806603ea0192a.exe
4032	JaffaCakes118_d8f2a7d4fb066f89ff7806603ea0192a.exe
1016	svchost.exe
832	SRDSL.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ini.ini	JaffaCakes118_d8f2a7d4fb066f89ff7806603ea0192a.exe
File created	C:\Windows\SysWOW64\SRDSL.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\SRDSL.exe	svchost.exe
File created	C:\Windows\SysWOW64\240626671.dll	JaffaCakes118_d8f2a7d4fb066f89ff7806603ea0192a.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d8f2a7d4fb066f89ff7806603ea0192a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SRDSL.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1016 wrote to memory of 832	1016	svchost.exe	88
PID 1016 wrote to memory of 832	1016	svchost.exe	88
PID 1016 wrote to memory of 832	1016	svchost.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d8f2a7d4fb066f89ff7806603ea0192a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d8f2a7d4fb066f89ff7806603ea0192a.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:4032

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SRDSL"
1⤵
PID:2636

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SRDSL"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1016
- C:\Windows\SysWOW64\SRDSL.exe
  C:\Windows\system32\SRDSL.exe "c:\windows\system32\240626671.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

T1505

Terminal Services DLL

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\240626671.dll

Filesize
37KB

MD5
6379c92230aa7b855562b6156ee61012

SHA1
5d52930ed0c9778d5affa0f8a9ad6cff3e711915

SHA256
5185b9eb9590aa3dcc14da913e8cb2701c67cd8b6951837e42cf75e9dbd8fb8f

SHA512
e12b1924b447d651fbd4f70b25a7d629e2497778cdcf434b02da2fb820984dad452c218061ae0265e20de2046f08f008482d50fbcc5bd7561db798b6ec7b24fa

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

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/4032-0-0x0000000010000000-0x000000001000F000-memory.dmp

Filesize
60KB

Download
memory/4032-8-0x00000000006B0000-0x00000000006BD000-memory.dmp

Filesize
52KB

Download