njrat | 148c79dd5103bdcf29cd837d62806dab07dd41329b5b73f0a49cd0d0902e61d3

Analysis

max time kernel
149s
max time network
127s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
31/08/2024, 09:47

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General

Target

15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
Size

127KB
MD5

46811c1d5ee6760733f363749071f92e
SHA1

2c10273e7f7b5be5b8b07c9188f07b44a450166c
SHA256

15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365
SHA512

c278092003c4092ea8a5fd8037869a3c6b1ea284862e3da4389d94d2af28251e83be1946114b5d29220f6c27a115d1ff454f8b3fa13c095493a512fdfbee8c20
SSDEEP

3072:vTjUek9zjP62dkHEgitptSt+X9JvGdA0U3IZ0U+bZ0tm:vejPVkEgijt4OV+U3sJm

Score

10^/10

njrat update discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

Update

194.34.132.153:1604

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Update.exe	systemupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Update.exe	systemupdate.exe

Executes dropped EXE 2 IoCs

pid	Process
2576	systemupdate.exe
1956	systemupdate.exe

Loads dropped DLL 8 IoCs

pid	Process
2760	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
2576	systemupdate.exe
2576	systemupdate.exe
2576	systemupdate.exe
2576	systemupdate.exe
1956	systemupdate.exe
1956	systemupdate.exe
1956	systemupdate.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\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\systemupdate.exe\" .."	systemupdate.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\systemupdate.exe\" .."	systemupdate.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2112 set thread context of 2760	2112	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	30
PID 2576 set thread context of 1956	2576	systemupdate.exe	32

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	systemupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systemupdate.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2760	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
1956	systemupdate.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	2112	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
Token: SeDebugPrivilege	2576	systemupdate.exe
Token: SeDebugPrivilege	1956	systemupdate.exe
Token: 33	1956	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1956	systemupdate.exe
Token: 33	1956	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1956	systemupdate.exe
Token: 33	1956	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1956	systemupdate.exe
Token: 33	1956	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1956	systemupdate.exe
Token: 33	1956	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1956	systemupdate.exe
Token: 33	1956	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1956	systemupdate.exe
Token: 33	1956	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1956	systemupdate.exe
Token: 33	1956	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1956	systemupdate.exe
Token: 33	1956	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1956	systemupdate.exe
Token: 33	1956	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1956	systemupdate.exe
Token: 33	1956	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1956	systemupdate.exe
Token: 33	1956	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1956	systemupdate.exe
Token: 33	1956	systemupdate.exe
Token: SeIncBasePriorityPrivilege	1956	systemupdate.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2760	2112	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	30
PID 2112 wrote to memory of 2760	2112	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	30
PID 2112 wrote to memory of 2760	2112	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	30
PID 2112 wrote to memory of 2760	2112	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	30
PID 2112 wrote to memory of 2760	2112	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	30
PID 2112 wrote to memory of 2760	2112	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	30
PID 2112 wrote to memory of 2760	2112	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	30
PID 2112 wrote to memory of 2760	2112	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	30
PID 2112 wrote to memory of 2760	2112	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	30
PID 2760 wrote to memory of 2576	2760	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	31
PID 2760 wrote to memory of 2576	2760	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	31
PID 2760 wrote to memory of 2576	2760	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	31
PID 2760 wrote to memory of 2576	2760	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	31
PID 2760 wrote to memory of 2576	2760	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	31
PID 2760 wrote to memory of 2576	2760	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	31
PID 2760 wrote to memory of 2576	2760	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	31
PID 2576 wrote to memory of 1956	2576	systemupdate.exe	32
PID 2576 wrote to memory of 1956	2576	systemupdate.exe	32
PID 2576 wrote to memory of 1956	2576	systemupdate.exe	32
PID 2576 wrote to memory of 1956	2576	systemupdate.exe	32
PID 2576 wrote to memory of 1956	2576	systemupdate.exe	32
PID 2576 wrote to memory of 1956	2576	systemupdate.exe	32
PID 2576 wrote to memory of 1956	2576	systemupdate.exe	32
PID 2576 wrote to memory of 1956	2576	systemupdate.exe	32
PID 2576 wrote to memory of 1956	2576	systemupdate.exe	32
PID 2576 wrote to memory of 1956	2576	systemupdate.exe	32
PID 2576 wrote to memory of 1956	2576	systemupdate.exe	32
PID 2576 wrote to memory of 1956	2576	systemupdate.exe	32

C:\Users\Admin\AppData\Local\Temp\15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
"C:\Users\Admin\AppData\Local\Temp\15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Users\Admin\AppData\Local\Temp\15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
  C:\Users\Admin\AppData\Local\Temp\15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Users\Admin\AppData\Local\Temp\systemupdate.exe
    "C:\Users\Admin\AppData\Local\Temp\systemupdate.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2576
  - - C:\Users\Admin\AppData\Local\Temp\systemupdate.exe
      C:\Users\Admin\AppData\Local\Temp\systemupdate.exe
      4⤵
      Drops startup file
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      PID:1956

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

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\systemupdate.exe

Filesize
127KB

MD5
46811c1d5ee6760733f363749071f92e

SHA1
2c10273e7f7b5be5b8b07c9188f07b44a450166c

SHA256
15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365

SHA512
c278092003c4092ea8a5fd8037869a3c6b1ea284862e3da4389d94d2af28251e83be1946114b5d29220f6c27a115d1ff454f8b3fa13c095493a512fdfbee8c20

Download Submit
memory/2112-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2112-1-0x0000000000A90000-0x0000000000AA8000-memory.dmp

Filesize
96KB

Download
memory/2112-2-0x0000000000210000-0x000000000021C000-memory.dmp

Filesize
48KB

Download
memory/2112-3-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2576-21-0x0000000000EE0000-0x0000000000EF8000-memory.dmp

Filesize
96KB

Download
memory/2760-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-9-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2760-10-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2760-22-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads