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

Processes:

Payload.exeSkype.exe

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

Executes dropped EXE 2 IoCs

Processes:

Skype.exePayload.exe

pid process

2320 Skype.exe
2268 Payload.exe
Loads dropped DLL 2 IoCs

Processes:

B553ABB412BA34BC311058EE33CFC397.exeSkype.exe

pid process

2084 B553ABB412BA34BC311058EE33CFC397.exe
2320 Skype.exe

pid	process
2320	Skype.exe
2268	Payload.exe

pid	process
2084	B553ABB412BA34BC311058EE33CFC397.exe
2320	Skype.exe

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Skype.exePayload.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Payload.exe"	Skype.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	Payload.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\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

Processes:

B553ABB412BA34BC311058EE33CFC397.exeSkype.exePayload.exeattrib.exe

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

Processes:

Payload.exe

description	pid	process
Token: SeDebugPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe
Token: 33	2268	Payload.exe
Token: SeIncBasePriorityPrivilege	2268	Payload.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

B553ABB412BA34BC311058EE33CFC397.exeSkype.exe

description	pid	process	target process
PID 2084 wrote to memory of 2320	2084	B553ABB412BA34BC311058EE33CFC397.exe	Skype.exe
PID 2084 wrote to memory of 2320	2084	B553ABB412BA34BC311058EE33CFC397.exe	Skype.exe
PID 2084 wrote to memory of 2320	2084	B553ABB412BA34BC311058EE33CFC397.exe	Skype.exe
PID 2084 wrote to memory of 2320	2084	B553ABB412BA34BC311058EE33CFC397.exe	Skype.exe
PID 2320 wrote to memory of 2268	2320	Skype.exe	Payload.exe
PID 2320 wrote to memory of 2268	2320	Skype.exe	Payload.exe
PID 2320 wrote to memory of 2268	2320	Skype.exe	Payload.exe
PID 2320 wrote to memory of 2268	2320	Skype.exe	Payload.exe
PID 2320 wrote to memory of 2884	2320	Skype.exe	attrib.exe
PID 2320 wrote to memory of 2884	2320	Skype.exe	attrib.exe
PID 2320 wrote to memory of 2884	2320	Skype.exe	attrib.exe
PID 2320 wrote to memory of 2884	2320	Skype.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exe

pid process

2884 attrib.exe

pid	process
2884	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:2084
- 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:2320
- - 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:2268
- - 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:2884

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
698057967070868e6327650afb3c8216

SHA1
21a257644bafd93cf70179b2b66152289c5d1728

SHA256
7bc606bbc1534cfcd4c3e99569a4affa24a66fce94affa53004df5865eb3f8da

SHA512
7372bf5ad1a18d8cb33d937a9dc1853840892f1902050e0e2cd237363daf07c1465ebf4ef2262772c22607287c888a2c4902faf8417fa9aa22c28f4268656009

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

Filesize
1022B

MD5
2e3c4af004fa46541fefabe17a645306

SHA1
8dcbb824393b89fb3c43a8acba1a642abdc2b4cc

SHA256
43492f86986eecd3a38e4c2922adeb1e0bd727337111d0afd7be3b7b971828ae

SHA512
679b95100d84de38d84bc2e0c3885a79fe222873ecc537bebacb4fedaa35c1446f907a80816d99b572ba6dce3c7ab18fefacebde65044b10d7b1c5d1ad13fb34

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

Filesize
27KB

MD5
d010a1a6e4e73e19b88c1f280c417a43

SHA1
99ac6501fee007d1ea4409ce9a1535d7298acc90

SHA256
2ca5d6bd734ac603e9c5064611ee6f0fab62005a85ffdb9e1c180aa4e0a18353

SHA512
b21fa039145b9b4e37686fe420d012b8d7c61913f5db237f56e4bc4ee14f90cb21aeb33f2f2f359ee6d4626230e278c6de860b1b79e48861f027a6c7c571d645

Download Submit
memory/2084-3-0x00000000008D0000-0x00000000008E6000-memory.dmp

Filesize
88KB

Download
memory/2084-5-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2084-4-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2084-0-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/2084-15-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2084-2-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2084-1-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2268-25-0x0000000000E10000-0x0000000000E1E000-memory.dmp

Filesize
56KB

Download
memory/2320-13-0x00000000011D0000-0x00000000011DE000-memory.dmp

Filesize
56KB

Download
memory/2320-14-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2320-27-0x0000000074910000-0x0000000074FFE000-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