njrat | 00d1f7f784455f77516c396b46d234d64a2cfa8f70bab5f1a9f8bcd97aa502fd

Analysis

max time kernel
149s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-10-2024 19:42

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General

Target

129de086d65beaa64f4789c6f467fcd2.exe
Size

65KB
MD5

129de086d65beaa64f4789c6f467fcd2
SHA1

c4f4b9c9a701dc64522ab7031aaa04bcb4e5f54e
SHA256

00d1f7f784455f77516c396b46d234d64a2cfa8f70bab5f1a9f8bcd97aa502fd
SHA512

7981172ebdf0083ca6ae34734c1993fc1aef667909e1daa08f4c9a236831da83cd73c4f4a9c7745870b430d6200620662797f1f7eba232b4574a06b81553d04b
SSDEEP

1536:tWOeboN36tbQviFw1ScTIBnvbBfLteF3nLrB9z3nWaF9bZS9vM:tWOeboN36tbQviFCtcBnVfWl9zGaF9bN

Score

10^/10

njrat uzbek discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

Platinum

Botnet

uzbek

127.0.0.1:14005

Mutex

yzbekt.exe

Attributes

reg_key
yzbekt.exe
splitter
|Ghost|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Executes dropped EXE 1 IoCs

pid	Process
2872	yzbekt.exe

Loads dropped DLL 1 IoCs

pid	Process
2756	129de086d65beaa64f4789c6f467fcd2.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yzbekt.exe = "\"C:\\Users\\Admin\\AppData\\Roaming\\yzbekt.exe\" .."	yzbekt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\yzbekt.exe = "\"C:\\Users\\Admin\\AppData\\Roaming\\yzbekt.exe\" .."	yzbekt.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs

Web Service

T1102

flow	ioc
14	0.tcp.eu.ngrok.io
29	0.tcp.eu.ngrok.io
36	0.tcp.eu.ngrok.io
2	0.tcp.eu.ngrok.io

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2952	2756	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 8 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	choice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	129de086d65beaa64f4789c6f467fcd2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TASKKILL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TASKKILL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yzbekt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TASKKILL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TASKKILL.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
2708	TASKKILL.exe
2044	TASKKILL.exe
2408	TASKKILL.exe
3004	TASKKILL.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
2756	129de086d65beaa64f4789c6f467fcd2.exe
2756	129de086d65beaa64f4789c6f467fcd2.exe
2756	129de086d65beaa64f4789c6f467fcd2.exe
2756	129de086d65beaa64f4789c6f467fcd2.exe
2756	129de086d65beaa64f4789c6f467fcd2.exe
2872	yzbekt.exe
2872	yzbekt.exe
2872	yzbekt.exe
2872	yzbekt.exe
2872	yzbekt.exe
2872	yzbekt.exe
2872	yzbekt.exe
2872	yzbekt.exe
2872	yzbekt.exe
2872	yzbekt.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2872	yzbekt.exe

Suspicious use of AdjustPrivilegeToken 38 IoCs

description	pid	Process
Token: SeDebugPrivilege	2756	129de086d65beaa64f4789c6f467fcd2.exe
Token: SeDebugPrivilege	2708	TASKKILL.exe
Token: SeDebugPrivilege	3004	TASKKILL.exe
Token: SeDebugPrivilege	2872	yzbekt.exe
Token: SeDebugPrivilege	2408	TASKKILL.exe
Token: SeDebugPrivilege	2044	TASKKILL.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe
Token: 33	2872	yzbekt.exe
Token: SeIncBasePriorityPrivilege	2872	yzbekt.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 3004	2756	129de086d65beaa64f4789c6f467fcd2.exe	30
PID 2756 wrote to memory of 3004	2756	129de086d65beaa64f4789c6f467fcd2.exe	30
PID 2756 wrote to memory of 3004	2756	129de086d65beaa64f4789c6f467fcd2.exe	30
PID 2756 wrote to memory of 3004	2756	129de086d65beaa64f4789c6f467fcd2.exe	30
PID 2756 wrote to memory of 2708	2756	129de086d65beaa64f4789c6f467fcd2.exe	31
PID 2756 wrote to memory of 2708	2756	129de086d65beaa64f4789c6f467fcd2.exe	31
PID 2756 wrote to memory of 2708	2756	129de086d65beaa64f4789c6f467fcd2.exe	31
PID 2756 wrote to memory of 2708	2756	129de086d65beaa64f4789c6f467fcd2.exe	31
PID 2756 wrote to memory of 2872	2756	129de086d65beaa64f4789c6f467fcd2.exe	35
PID 2756 wrote to memory of 2872	2756	129de086d65beaa64f4789c6f467fcd2.exe	35
PID 2756 wrote to memory of 2872	2756	129de086d65beaa64f4789c6f467fcd2.exe	35
PID 2756 wrote to memory of 2872	2756	129de086d65beaa64f4789c6f467fcd2.exe	35
PID 2756 wrote to memory of 2212	2756	129de086d65beaa64f4789c6f467fcd2.exe	36
PID 2756 wrote to memory of 2212	2756	129de086d65beaa64f4789c6f467fcd2.exe	36
PID 2756 wrote to memory of 2212	2756	129de086d65beaa64f4789c6f467fcd2.exe	36
PID 2756 wrote to memory of 2212	2756	129de086d65beaa64f4789c6f467fcd2.exe	36
PID 2872 wrote to memory of 2044	2872	yzbekt.exe	38
PID 2872 wrote to memory of 2044	2872	yzbekt.exe	38
PID 2872 wrote to memory of 2044	2872	yzbekt.exe	38
PID 2872 wrote to memory of 2044	2872	yzbekt.exe	38
PID 2872 wrote to memory of 2408	2872	yzbekt.exe	39
PID 2872 wrote to memory of 2408	2872	yzbekt.exe	39
PID 2872 wrote to memory of 2408	2872	yzbekt.exe	39
PID 2872 wrote to memory of 2408	2872	yzbekt.exe	39
PID 2756 wrote to memory of 2952	2756	129de086d65beaa64f4789c6f467fcd2.exe	42
PID 2756 wrote to memory of 2952	2756	129de086d65beaa64f4789c6f467fcd2.exe	42
PID 2756 wrote to memory of 2952	2756	129de086d65beaa64f4789c6f467fcd2.exe	42
PID 2756 wrote to memory of 2952	2756	129de086d65beaa64f4789c6f467fcd2.exe	42
PID 2212 wrote to memory of 2936	2212	cmd.exe	43
PID 2212 wrote to memory of 2936	2212	cmd.exe	43
PID 2212 wrote to memory of 2936	2212	cmd.exe	43
PID 2212 wrote to memory of 2936	2212	cmd.exe	43

C:\Users\Admin\AppData\Local\Temp\129de086d65beaa64f4789c6f467fcd2.exe
"C:\Users\Admin\AppData\Local\Temp\129de086d65beaa64f4789c6f467fcd2.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\TASKKILL.exe
  TASKKILL /F /IM wscript.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3004
- C:\Windows\SysWOW64\TASKKILL.exe
  TASKKILL /F /IM cmd.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2708
- C:\Users\Admin\AppData\Roaming\yzbekt.exe
  "C:\Users\Admin\AppData\Roaming\yzbekt.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2872
- - C:\Windows\SysWOW64\TASKKILL.exe
    TASKKILL /F /IM wscript.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2044
- - C:\Windows\SysWOW64\TASKKILL.exe
    TASKKILL /F /IM cmd.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2408
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 5 & Del "C:\Users\Admin\AppData\Local\Temp\129de086d65beaa64f4789c6f467fcd2.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2212
- - C:\Windows\SysWOW64\choice.exe
    choice /C Y /N /D Y /T 5
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2756 -s 996
  2⤵
  - Program crash
  PID:2952

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\yzbekt.exe

Filesize
65KB

MD5
129de086d65beaa64f4789c6f467fcd2

SHA1
c4f4b9c9a701dc64522ab7031aaa04bcb4e5f54e

SHA256
00d1f7f784455f77516c396b46d234d64a2cfa8f70bab5f1a9f8bcd97aa502fd

SHA512
7981172ebdf0083ca6ae34734c1993fc1aef667909e1daa08f4c9a236831da83cd73c4f4a9c7745870b430d6200620662797f1f7eba232b4574a06b81553d04b

Download Submit
memory/2756-0-0x0000000074701000-0x0000000074702000-memory.dmp

Filesize
4KB

Download
memory/2756-1-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2756-2-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2756-12-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2756-20-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download