njrat | 148c79dd5103bdcf29cd837d62806dab07dd41329b5b73f0a49cd0d0902e61d3

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

C2

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe

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
968	systemupdate.exe
4316	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-1-5-21-1302416131-1437503476-2806442725-1000\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 4908 set thread context of 3660	4908	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	95
PID 968 set thread context of 4316	968	systemupdate.exe	100

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	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systemupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systemupdate.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
3660	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
4316	systemupdate.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4908	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
Token: SeDebugPrivilege	968	systemupdate.exe
Token: SeDebugPrivilege	4316	systemupdate.exe
Token: 33	4316	systemupdate.exe
Token: SeIncBasePriorityPrivilege	4316	systemupdate.exe
Token: 33	4316	systemupdate.exe
Token: SeIncBasePriorityPrivilege	4316	systemupdate.exe
Token: 33	4316	systemupdate.exe
Token: SeIncBasePriorityPrivilege	4316	systemupdate.exe
Token: 33	4316	systemupdate.exe
Token: SeIncBasePriorityPrivilege	4316	systemupdate.exe
Token: 33	4316	systemupdate.exe
Token: SeIncBasePriorityPrivilege	4316	systemupdate.exe
Token: 33	4316	systemupdate.exe
Token: SeIncBasePriorityPrivilege	4316	systemupdate.exe
Token: 33	4316	systemupdate.exe
Token: SeIncBasePriorityPrivilege	4316	systemupdate.exe
Token: 33	4316	systemupdate.exe
Token: SeIncBasePriorityPrivilege	4316	systemupdate.exe
Token: 33	4316	systemupdate.exe
Token: SeIncBasePriorityPrivilege	4316	systemupdate.exe
Token: 33	4316	systemupdate.exe
Token: SeIncBasePriorityPrivilege	4316	systemupdate.exe
Token: 33	4316	systemupdate.exe
Token: SeIncBasePriorityPrivilege	4316	systemupdate.exe
Token: 33	4316	systemupdate.exe
Token: SeIncBasePriorityPrivilege	4316	systemupdate.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4908 wrote to memory of 3660	4908	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	95
PID 4908 wrote to memory of 3660	4908	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	95
PID 4908 wrote to memory of 3660	4908	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	95
PID 4908 wrote to memory of 3660	4908	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	95
PID 4908 wrote to memory of 3660	4908	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	95
PID 4908 wrote to memory of 3660	4908	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	95
PID 4908 wrote to memory of 3660	4908	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	95
PID 4908 wrote to memory of 3660	4908	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	95
PID 3660 wrote to memory of 968	3660	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	96
PID 3660 wrote to memory of 968	3660	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	96
PID 3660 wrote to memory of 968	3660	15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe	96
PID 968 wrote to memory of 4316	968	systemupdate.exe	100
PID 968 wrote to memory of 4316	968	systemupdate.exe	100
PID 968 wrote to memory of 4316	968	systemupdate.exe	100
PID 968 wrote to memory of 4316	968	systemupdate.exe	100
PID 968 wrote to memory of 4316	968	systemupdate.exe	100
PID 968 wrote to memory of 4316	968	systemupdate.exe	100
PID 968 wrote to memory of 4316	968	systemupdate.exe	100
PID 968 wrote to memory of 4316	968	systemupdate.exe	100

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:4908
- C:\Users\Admin\AppData\Local\Temp\15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
  C:\Users\Admin\AppData\Local\Temp\15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of WriteProcessMemory
  PID:3660
- - C:\Users\Admin\AppData\Local\Temp\systemupdate.exe
    "C:\Users\Admin\AppData\Local\Temp\systemupdate.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:968
  - - C:\Users\Admin\AppData\Local\Temp\systemupdate.exe
      C:\Users\Admin\AppData\Local\Temp\systemupdate.exe
      4⤵
      Drops startup file
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      PID:4316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365.exe.log

Filesize
617B

MD5
99e770c0d4043aa84ef3d3cbc7723c25

SHA1
19829c5c413fccba750a3357f938dfa94486acad

SHA256
33c7dd4c852dae6462c701337f8e0a8647602847ccaee656fa6f1149cccfb5d5

SHA512
ba521e2f57d7e1db19445201948caa7af6d953e1c1340228934888f8ec05b8984ad492122d0bf0550b5e679614d8a713ecf68f91916ffa6e5d8f75bf003aae39

Download Submit
C:\Users\Admin\AppData\Local\Temp\systemupdate.exe

Filesize
127KB

MD5
46811c1d5ee6760733f363749071f92e

SHA1
2c10273e7f7b5be5b8b07c9188f07b44a450166c

SHA256
15d12789262a679cbefc1b5c4df5432e0592e0b5013c484c82b3a61f524a1365

SHA512
c278092003c4092ea8a5fd8037869a3c6b1ea284862e3da4389d94d2af28251e83be1946114b5d29220f6c27a115d1ff454f8b3fa13c095493a512fdfbee8c20

Download Submit
memory/968-27-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/968-22-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/968-21-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/3660-10-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/3660-20-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/3660-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3660-9-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/3660-11-0x00000000056A0000-0x0000000005732000-memory.dmp

Filesize
584KB

Download
memory/4316-28-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4316-29-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4316-31-0x0000000005D10000-0x0000000005D1A000-memory.dmp

Filesize
40KB

Download
memory/4316-32-0x0000000005DB0000-0x0000000005E16000-memory.dmp

Filesize
408KB

Download
memory/4316-33-0x0000000006D20000-0x0000000006D38000-memory.dmp

Filesize
96KB

Download
memory/4316-34-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4316-35-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4908-5-0x00000000051C0000-0x0000000005764000-memory.dmp

Filesize
5.6MB

Download
memory/4908-4-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/4908-3-0x00000000025F0000-0x00000000025FC000-memory.dmp

Filesize
48KB

Download
memory/4908-2-0x0000000004B70000-0x0000000004C0C000-memory.dmp

Filesize
624KB

Download
memory/4908-0-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/4908-1-0x0000000000160000-0x0000000000178000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads