runningrat | 331a562953f7da86fb6fc344a1c27c49051105177f8ff8661058d801d8f12802

Analysis

max time kernel
139s
max time network
151s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
16/06/2024, 02:37

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General

Target
999999.exe
Size 48KB
Sample240616-c4lxaawdpg
SHA256 b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f
MD5 2b6bdd0a18e76a5df3a867a49f951125
SHA1 f0286405e8c8efb11ad4d30b29f32268ea747c09
SHA512 ef06c218ad5daf8437fda94c991a4ba86e3bdfd7ef55b64d8fdbe4657bb7acf512c42e7158cce17943a3aa437f96d294dae6eeb908d1f8acacdc4ddb25f27915
SSDEEP 768:zynb12Aw5J6HC4kq5Jp9bjAzhyY55J+NStcEeUlyqgZl4p67ahPC:Ub1MsHz3JDwhyWr+N95OTga6Z
MD5 SHA1 SHA512 SSDEEP

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\Simullatis\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\240606046.dll"	999999.exe

Executes dropped EXE 1 IoCs

pid	Process
3560	Simullatis.exe

Loads dropped DLL 3 IoCs

pid	Process
2912	999999.exe
1624	svchost.exe
3560	Simullatis.exe

Creates a Windows Service
persistence

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Simullatis.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Simullatis.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
1252	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2912	999999.exe
2912	999999.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2912	999999.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2912	999999.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 1108	2912	999999.exe	75
PID 2912 wrote to memory of 1108	2912	999999.exe	75
PID 2912 wrote to memory of 1108	2912	999999.exe	75
PID 1108 wrote to memory of 1252	1108	cmd.exe	77
PID 1108 wrote to memory of 1252	1108	cmd.exe	77
PID 1108 wrote to memory of 1252	1108	cmd.exe	77
PID 1624 wrote to memory of 3560	1624	svchost.exe	78
PID 1624 wrote to memory of 3560	1624	svchost.exe	78
PID 1624 wrote to memory of 3560	1624	svchost.exe	78

C:\Users\Admin\AppData\Local\Temp\999999.exe
"C:\Users\Admin\AppData\Local\Temp\999999.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:2912
- 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\999999.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1108
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 1
    3⤵
    - Runs ping.exe
    PID:1252

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Simullatis"
1⤵
PID:4416

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Simullatis"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Windows\SysWOW64\Simullatis.exe
  C:\Windows\system32\Simullatis.exe "c:\users\admin\appdata\local\temp\240606046.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:3560

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

Replay Monitor

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Downloads

Simullatis.exe

Path C:\Windows\SysWOW64\Simullatis.exe
Size 59KB
SHA256 2be981b3686ee5e725583f5936f5f0a0992723cad784457f91d9d1d5a15a0852
MD5 f57886ace1ab4972b0308f69b1a0029c
SHA1 519b2a981cb522ed2b0901f9871f9aa9781a6cd5
SHA512 c2b3f016a8c3993771cd5709e469c9dedfa1dd35047691de5e853e2ad0ac025ec210fc6cb662c82d08f62e2c889e5060e796414a4eaf6a6c1719cdd7e5debdf8
SSDEEP 768:ZE4kM/YtA7Fnl7vL6D/tq1oe60DRvbSEln5IyYpamDjobj8SbW:Zk1mBl6DwoADRBln5IUmDjoXfW
MD5 SHA1 SHA512 SSDEEP

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240606046.dll

Path \Users\Admin\AppData\Local\Temp\240606046.dll
Size 25KB
SHA256 03bc8caca1bab6d14d7eac1dde331df3be91aec47c51c7ddf6646deab028d17e
MD5 da3dd69dae8627334a8479f60eeb082e
SHA1 35c550902e5c0e6297785c367c2d638dda23404e
SHA512 b09e6175513d2e75119a67741f6d694722be511b317bd30efed30b4961dc945a97ce6baccc1282a412adaea31d60679183d3a15e7564c04c5dcad712650c5d3c
SSDEEP 384:8T9IWqIwt10zr6lXYhCRdkyurLmC2S1xJrQcWrH/RUAMO0MY0holUxHd+q4tKDES:8ht+Izr6pqRrLuS1vzWpaGZHdSYDG
MD5 SHA1 SHA512 SSDEEP

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