runningrat | 2e16a2bc7674b473da78276b7f7617aa77552d87880df0b5e4017efda60cd279

General

Target

fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974.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

Signatures

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

RunningRat payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2120-0-0x0000000010000000-0x000000001000F000-memory.dmp	family_runningrat

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

Processes:

fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SRDSL\Parameters\ServiceDll = "C:\\Windows\\system32\\259427790.dll"	fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974.exe

Executes dropped EXE 1 IoCs

Processes:

SRDSL.exe

pid process

2792 SRDSL.exe

pid	process
2792	SRDSL.exe

Loads dropped DLL 7 IoCs

Processes:

fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974.exesvchost.exeSRDSL.exe

pid	process
2120	fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974.exe
2548	svchost.exe
2548	svchost.exe
2792	SRDSL.exe
2792	SRDSL.exe
2792	SRDSL.exe
2792	SRDSL.exe

Drops file in System32 directory 4 IoCs

Processes:

fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974.exesvchost.exe

description	ioc	process
File created	C:\Windows\SysWOW64\259427790.dll	fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974.exe
File created	C:\Windows\SysWOW64\SRDSL.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\SRDSL.exe	svchost.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

Processes:

fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974.exesvchost.exeSRDSL.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974.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 4 IoCs

Processes:

svchost.exe

description	pid	process	target process
PID 2548 wrote to memory of 2792	2548	svchost.exe	SRDSL.exe
PID 2548 wrote to memory of 2792	2548	svchost.exe	SRDSL.exe
PID 2548 wrote to memory of 2792	2548	svchost.exe	SRDSL.exe
PID 2548 wrote to memory of 2792	2548	svchost.exe	SRDSL.exe

C:\Users\Admin\AppData\Local\Temp\fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974.exe
"C:\Users\Admin\AppData\Local\Temp\fa8405c6d4f14f21f1e90a918d7fc1dea5fc151c183631751f32146c11198974.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:2120

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SRDSL"
1⤵
PID:1908

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:2548
- C:\Windows\SysWOW64\SRDSL.exe
  C:\Windows\system32\SRDSL.exe "c:\windows\system32\259427790.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Windows\SysWOW64\259427790.dll

Filesize
37KB

MD5
91b930d8f59f58933af8b6114efcd696

SHA1
8bd6853f1f7f445053d6aaf102acb4508d8d8441

SHA256
00178d91d8f23dd478753ad278db03ec55a28903eb4a1832c59264a1e7b44698

SHA512
13a602d245e748e03157ebdf652e5e7c717111766dc4c38160d8d331bb29f97a014426d00f64e7c92f888dc33afd82458241d43422871dc26fb7a7c946504d1e

Download Submit
\Windows\SysWOW64\SRDSL.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2120-0-0x0000000010000000-0x000000001000F000-memory.dmp

Filesize
60KB

Download
memory/2120-6-0x0000000000330000-0x000000000033D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads