revengerat | 4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81

General

Target

4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe
Size

901KB
MD5

d93d5d9fac451f67e2d502c72b7121b0
SHA1

f079cb157aa0d32d9e14753e15e4b9341db77a63
SHA256

4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81
SHA512

bc0edd4950e251580985104df63173e55dc9c22ebb05d8c8f2567818ec3d40cfd3469683aaf5bd49fc8e5eda0f66902a098dd3e61c69f91441eb4a144e420685
SSDEEP

24576:ZAHnh+eWsN3skA4RV1Hom2KXMmHaKZa5r:gh+ZkldoPK8YaKGr

Score

10^/10

revengerat marzo26 discovery trojan

Malware Config

Extracted

Family

revengerat

Botnet

Marzo26

C2

marzorevenger.duckdns.org:4230

Mutex

RV_MUTEX-PiGGjjtnxDpn

Signatures

RevengeRAT
Remote-access trojan with a wide range of capabilities.
trojan revengerat
Revengerat family
revengerat

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AudioHandlers.url	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2104 set thread context of 2996	2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\CENTRALPROCESSOR\0	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2996	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe
2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe
2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe
2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe
2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2996	2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe	31
PID 2104 wrote to memory of 2996	2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe	31
PID 2104 wrote to memory of 2996	2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe	31
PID 2104 wrote to memory of 2996	2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe	31
PID 2104 wrote to memory of 2996	2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe	31
PID 2104 wrote to memory of 2996	2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe	31
PID 2104 wrote to memory of 2996	2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe	31
PID 2104 wrote to memory of 2996	2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe	31
PID 2104 wrote to memory of 2996	2104	4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe	31

C:\Users\Admin\AppData\Local\Temp\4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe
"C:\Users\Admin\AppData\Local\Temp\4fd3b76c86abf61a9eed459e49c809cb389cd29758cffc1d39458171da0a7c81N.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2104-0-0x00000000000B0000-0x00000000000B1000-memory.dmp

Filesize
4KB

Download
memory/2996-3-0x0000000000090000-0x0000000000098000-memory.dmp

Filesize
32KB

Download
memory/2996-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2996-9-0x0000000000090000-0x0000000000098000-memory.dmp

Filesize
32KB

Download
memory/2996-8-0x0000000000090000-0x0000000000098000-memory.dmp

Filesize
32KB

Download
memory/2996-1-0x0000000000090000-0x0000000000098000-memory.dmp

Filesize
32KB

Download
memory/2996-10-0x0000000074762000-0x0000000074764000-memory.dmp

Filesize
8KB

Download
memory/2996-11-0x0000000074762000-0x0000000074764000-memory.dmp

Filesize
8KB

Download

Analysis

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