revengerat | 3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5

General

Target

3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe
Size

952KB
MD5

3b7411b418605c1c63f35e251face868
SHA1

5edcbf7ed96decef702213170e801e9e21820ab7
SHA256

3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5
SHA512

d62e4863a6164d89341fb8e95bf93ddec58e36201ca2d34457c92ecedde249281e258e8a14ab1efd98fe4d928b3ab7b13a1015ae020c9f1955cc1f9a1a5a8c6b
SSDEEP

24576:2AHnh+eWsN3skA4RV1HDm2KXMmHaKZT5h:Rh+ZkldDPK8YaKjh

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	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe

AutoIT Executable 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/5088-0-0x0000000000390000-0x0000000000483000-memory.dmp	autoit_exe
behavioral2/memory/5088-9-0x0000000000390000-0x0000000000483000-memory.dmp	autoit_exe
behavioral2/memory/5088-16-0x0000000000390000-0x0000000000483000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5088 set thread context of 1172	5088	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe	83

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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\CENTRALPROCESSOR\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1172	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
5088	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe
5088	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe
5088	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
5088	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe
5088	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe
5088	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5088 wrote to memory of 1172	5088	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe	83
PID 5088 wrote to memory of 1172	5088	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe	83
PID 5088 wrote to memory of 1172	5088	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe	83
PID 5088 wrote to memory of 1172	5088	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe	83
PID 5088 wrote to memory of 1172	5088	3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe	83

C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.exe
"C:\Users\Admin\AppData\Local\Temp\3837831ce8b944076c88e4341840d20daa4c84e22fc64ce4c6a6f971e2bda8c5.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:5088
- 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:1172

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/1172-3-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1172-6-0x0000000073782000-0x0000000073783000-memory.dmp

Filesize
4KB

Download
memory/1172-7-0x0000000073780000-0x0000000073D31000-memory.dmp

Filesize
5.7MB

Download
memory/1172-8-0x0000000073780000-0x0000000073D31000-memory.dmp

Filesize
5.7MB

Download
memory/1172-10-0x0000000073782000-0x0000000073783000-memory.dmp

Filesize
4KB

Download
memory/1172-11-0x0000000073780000-0x0000000073D31000-memory.dmp

Filesize
5.7MB

Download
memory/1172-12-0x0000000073780000-0x0000000073D31000-memory.dmp

Filesize
5.7MB

Download
memory/5088-0-0x0000000000390000-0x0000000000483000-memory.dmp

Filesize
972KB

Download
memory/5088-1-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/5088-9-0x0000000000390000-0x0000000000483000-memory.dmp

Filesize
972KB

Download
memory/5088-16-0x0000000000390000-0x0000000000483000-memory.dmp

Filesize
972KB

Download

Analysis

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