njrat | d7bc1429e88074976cd64b913ebcd7b0cc52f766059a6a0604dfad9004f4de8f

General

Target

B553ABB412BA34BC311058EE33CFC397.exe
Size

291KB
MD5

b553abb412ba34bc311058ee33cfc397
SHA1

b0ecb499719c915c2ce9e1941edcaa24362f6225
SHA256

d7bc1429e88074976cd64b913ebcd7b0cc52f766059a6a0604dfad9004f4de8f
SHA512

b31b57b9adf272f547b59e96ab4339516a3c2e0d141233e39b98745904012a975171b2e80e2b9c0e5eeaa9adb7cd2e1790ec3bb54fbe5f6afdc6bdd58691a784
SSDEEP

6144:P95EeRw+PquKUEgwanRpFWM+moPk2sT5kbd0bQ:l5zRw+PqubvwanzFD28T40bQ

Score

10^/10

njrat hacked discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

v4.0

Botnet

HacKed

C2

94.46.207.10:1177

Mutex

Windows

Attributes

reg_key
Windows
splitter
|-F-|

Signatures

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

Drops startup file 4 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
2164	Skype.exe
2972	Payload.exe

Loads dropped DLL 2 IoCs

pid	Process
2484	B553ABB412BA34BC311058EE33CFC397.exe
2164	Skype.exe

Adds Run key to start application 2 TTPs 5 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\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	Payload.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Payload.exe"	Skype.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	Payload.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	Payload.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	Payload.exe

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	B553ABB412BA34BC311058EE33CFC397.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Skype.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Payload.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe
Token: 33	2972	Payload.exe
Token: SeIncBasePriorityPrivilege	2972	Payload.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 2164	2484	B553ABB412BA34BC311058EE33CFC397.exe	30
PID 2484 wrote to memory of 2164	2484	B553ABB412BA34BC311058EE33CFC397.exe	30
PID 2484 wrote to memory of 2164	2484	B553ABB412BA34BC311058EE33CFC397.exe	30
PID 2484 wrote to memory of 2164	2484	B553ABB412BA34BC311058EE33CFC397.exe	30
PID 2164 wrote to memory of 2972	2164	Skype.exe	31
PID 2164 wrote to memory of 2972	2164	Skype.exe	31
PID 2164 wrote to memory of 2972	2164	Skype.exe	31
PID 2164 wrote to memory of 2972	2164	Skype.exe	31
PID 2164 wrote to memory of 2812	2164	Skype.exe	32
PID 2164 wrote to memory of 2812	2164	Skype.exe	32
PID 2164 wrote to memory of 2812	2164	Skype.exe	32
PID 2164 wrote to memory of 2812	2164	Skype.exe	32

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2812	attrib.exe

C:\Users\Admin\AppData\Local\Temp\B553ABB412BA34BC311058EE33CFC397.exe
"C:\Users\Admin\AppData\Local\Temp\B553ABB412BA34BC311058EE33CFC397.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Users\Admin\AppData\Local\Temp\Skype.exe
  "C:\Users\Admin\AppData\Local\Temp\Skype.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2164
- - C:\Users\Admin\AppData\Local\Temp\Payload.exe
    "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2972
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h +r +s "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2812

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

Hide Artifacts

1

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

1

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\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk

Filesize
1KB

MD5
77f6ec7abb12c564ab9f4e5beef5af7a

SHA1
e618383b21261fb35b77a61edbb48d75ee20c5e5

SHA256
4073c05ed3d92e0bbfb476e6cf02c19d535cb42833a5c86bbac3ee212b3efbe0

SHA512
ee77240ba732e76f9634ef735359a5eb4752764eeeab1bcbe8bd753ba077520eee88993c3b0e929f1b6c80812099466781abec55a254dec9512e2405d8f2a5a7

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk

Filesize
1018B

MD5
61c3090826950fcfbf74a2be12055a74

SHA1
c38c27b22332feb7075168a6426b8290d64e7ca4

SHA256
6068aba8beb26503f55b6b95fc9a3c1815b80a25969741e4fdc0265b5f6def30

SHA512
82125a5dcb15a5f0b24e8fa723bec6b8558f6abfc1f3d02f8fb16ffad636f6e7147dd497bb4343200b895a79ff1a90fbbdb36f39cfdc035f5182671c6fb5bfba

Download Submit
\Users\Admin\AppData\Local\Temp\Skype.exe

Filesize
27KB

MD5
d010a1a6e4e73e19b88c1f280c417a43

SHA1
99ac6501fee007d1ea4409ce9a1535d7298acc90

SHA256
2ca5d6bd734ac603e9c5064611ee6f0fab62005a85ffdb9e1c180aa4e0a18353

SHA512
b21fa039145b9b4e37686fe420d012b8d7c61913f5db237f56e4bc4ee14f90cb21aeb33f2f2f359ee6d4626230e278c6de860b1b79e48861f027a6c7c571d645

Download Submit
memory/2164-14-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2164-15-0x0000000000130000-0x000000000013E000-memory.dmp

Filesize
56KB

Download
memory/2164-30-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2484-4-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2484-5-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2484-3-0x00000000021B0000-0x00000000021C6000-memory.dmp

Filesize
88KB

Download
memory/2484-13-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2484-0-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/2484-2-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2484-1-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2972-25-0x0000000000CF0000-0x0000000000CFE000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads