revengerat | f666ce7cd0fcb4bf2718c9fb6edcbd825bedae8fd57374931c82a7866975f37d

General

Target

stage2.ps1
Size

924KB
MD5

86668391bf87240f9b512f7f56e2f4ec
SHA1

b67f1b89d2b5fe4d3121052ad1208211214aa293
SHA256

f666ce7cd0fcb4bf2718c9fb6edcbd825bedae8fd57374931c82a7866975f37d
SHA512

bbcc518162acfd8dd1155d5c19f89674509b954cfe52b1847e40bfe35a1c7f0d6cd0ac53040839c4ceccfd7283b301b5801ce26cb2cf1d51e4e000b181216ce4
SSDEEP

6144:Da3hajoDS2VvhVHzHc4abdm6NNNmy7aBo428Ok8Z3ka:DaEjo22VpJb1abdm6NNNmy7v428E

Score

10^/10

revengerat nyancatrevenge discovery execution persistence trojan

Malware Config

Extracted

Family

revengerat

Botnet

NyanCatRevenge

C2

102.165.46.145:333

Mutex

pHXJvbCGPPiC

Signatures

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
18	2164	powershell.exe

.NET Reactor proctector 1 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral2/memory/2164-18-0x000001F9CE790000-0x000001F9CE7D6000-memory.dmp	net_reactor

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D = "C:\\ProgramData\\PDF\\1.bat"	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2164 set thread context of 1420	2164	powershell.exe	94

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2164	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	csc.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	csc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	csc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2164	powershell.exe
2164	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2164	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 1420	2164	powershell.exe	94
PID 2164 wrote to memory of 1420	2164	powershell.exe	94
PID 2164 wrote to memory of 1420	2164	powershell.exe	94
PID 2164 wrote to memory of 1420	2164	powershell.exe	94
PID 2164 wrote to memory of 1420	2164	powershell.exe	94
PID 2164 wrote to memory of 1420	2164	powershell.exe	94
PID 2164 wrote to memory of 1420	2164	powershell.exe	94
PID 2164 wrote to memory of 1420	2164	powershell.exe	94

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\stage2.ps1
1⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  PID:1420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_j0ujonhf.dxm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1420-20-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1420-30-0x0000000074C70000-0x0000000075420000-memory.dmp

Filesize
7.7MB

Download
memory/1420-29-0x0000000074C7E000-0x0000000074C7F000-memory.dmp

Filesize
4KB

Download
memory/1420-25-0x0000000006B40000-0x0000000006BA6000-memory.dmp

Filesize
408KB

Download
memory/1420-24-0x0000000006930000-0x00000000069CC000-memory.dmp

Filesize
624KB

Download
memory/1420-23-0x0000000074C70000-0x0000000075420000-memory.dmp

Filesize
7.7MB

Download
memory/1420-22-0x00000000060E0000-0x0000000006684000-memory.dmp

Filesize
5.6MB

Download
memory/1420-21-0x0000000074C7E000-0x0000000074C7F000-memory.dmp

Filesize
4KB

Download
memory/2164-12-0x00007FFA81480000-0x00007FFA81F41000-memory.dmp

Filesize
10.8MB

Download
memory/2164-19-0x00007FFA81480000-0x00007FFA81F41000-memory.dmp

Filesize
10.8MB

Download
memory/2164-18-0x000001F9CE790000-0x000001F9CE7D6000-memory.dmp

Filesize
280KB

Download
memory/2164-16-0x00007FFA81483000-0x00007FFA81485000-memory.dmp

Filesize
8KB

Download
memory/2164-15-0x00007FFA81480000-0x00007FFA81F41000-memory.dmp

Filesize
10.8MB

Download
memory/2164-0-0x00007FFA81483000-0x00007FFA81485000-memory.dmp

Filesize
8KB

Download
memory/2164-28-0x00007FFA81480000-0x00007FFA81F41000-memory.dmp

Filesize
10.8MB

Download
memory/2164-11-0x00007FFA81480000-0x00007FFA81F41000-memory.dmp

Filesize
10.8MB

Download
memory/2164-1-0x000001F9CE410000-0x000001F9CE432000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads