runningrat | 0bfc89dbd9ca0289ff721fb550c4959b40cede23cb11095c15e07c76a237d671

Analysis

max time kernel
132s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
02/03/2022, 00:43

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General

Target
Server.exe
Size 68KB
Sample220302-a2xvnadeeq
SHA256 0bfc89dbd9ca0289ff721fb550c4959b40cede23cb11095c15e07c76a237d671
MD5 59a58f456b42a6c63ff9548d6f5ecc8a
SHA1 93bd92bf3a85f2d581dedbe2cc63249ad8c15422
SHA512 b0f020db981b7ec2dfb5a4c5085244712784621f8d6687007f15c03090800709b3ebbb83e6f904a9cd5c4a94099504afd1a6bdab3ca6a739f868fd7fa1f3cba9
MD5 SHA1 SHA512

Score

10^/10

runningrat rat

Malware Config

Signatures

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

RunningRat Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2248-130-0x0000000010000000-0x000000001000F000-memory.dmp	family_runningrat

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 3092 created 2248	3092	WerFault.exe	78

Loads dropped DLL 2 IoCs

pid	Process
2248	Server.exe
2248	Server.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4760	2248	WerFault.exe	78

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WerFault.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WerFault.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4760	WerFault.exe
4760	WerFault.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeRestorePrivilege	4760	WerFault.exe
Token: SeBackupPrivilege	4760	WerFault.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3092 wrote to memory of 2248	3092	WerFault.exe	78
PID 3092 wrote to memory of 2248	3092	WerFault.exe	78

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Loads dropped DLL
PID:2248
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2248 -s 464
  2⤵
  - Program crash
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2248 -ip 2248
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:3092

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2248-130-0x0000000010000000-0x000000001000F000-memory.dmp

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memory/2248-135-0x00000000005A0000-0x00000000005AD000-memory.dmp

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