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

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

B553ABB412BA34BC311058EE33CFC397.exeSkype.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	B553ABB412BA34BC311058EE33CFC397.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	Skype.exe

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.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
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk	Skype.exe

Executes dropped EXE 2 IoCs

Processes:

Skype.exePayload.exe

pid process

2804 Skype.exe
872 Payload.exe

pid	process
2804	Skype.exe
872	Payload.exe

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Payload.exeSkype.exe

description	ioc	process
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-1-5-21-493223053-2004649691-1575712786-1000\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
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Payload.exe"	Skype.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows2 = "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	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe
Token: 33	872	Payload.exe
Token: SeIncBasePriorityPrivilege	872	Payload.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

B553ABB412BA34BC311058EE33CFC397.exeSkype.exe

description	pid	process	target process
PID 4832 wrote to memory of 2804	4832	B553ABB412BA34BC311058EE33CFC397.exe	Skype.exe
PID 4832 wrote to memory of 2804	4832	B553ABB412BA34BC311058EE33CFC397.exe	Skype.exe
PID 4832 wrote to memory of 2804	4832	B553ABB412BA34BC311058EE33CFC397.exe	Skype.exe
PID 2804 wrote to memory of 872	2804	Skype.exe	Payload.exe
PID 2804 wrote to memory of 872	2804	Skype.exe	Payload.exe
PID 2804 wrote to memory of 872	2804	Skype.exe	Payload.exe
PID 2804 wrote to memory of 1692	2804	Skype.exe	attrib.exe
PID 2804 wrote to memory of 1692	2804	Skype.exe	attrib.exe
PID 2804 wrote to memory of 1692	2804	Skype.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exe

pid process

1692 attrib.exe

pid	process
1692	attrib.exe

C:\Users\Admin\AppData\Local\Temp\B553ABB412BA34BC311058EE33CFC397.exe
"C:\Users\Admin\AppData\Local\Temp\B553ABB412BA34BC311058EE33CFC397.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4832
- C:\Users\Admin\AppData\Local\Temp\Skype.exe
  "C:\Users\Admin\AppData\Local\Temp\Skype.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2804
- - 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:872
- - 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:1692

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

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\Temp\Skype.exe

Filesize
27KB

MD5
d010a1a6e4e73e19b88c1f280c417a43

SHA1
99ac6501fee007d1ea4409ce9a1535d7298acc90

SHA256
2ca5d6bd734ac603e9c5064611ee6f0fab62005a85ffdb9e1c180aa4e0a18353

SHA512
b21fa039145b9b4e37686fe420d012b8d7c61913f5db237f56e4bc4ee14f90cb21aeb33f2f2f359ee6d4626230e278c6de860b1b79e48861f027a6c7c571d645

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk

Filesize
1KB

MD5
a2bdf65651bf647b5e2f008501d71ddc

SHA1
af9dd7b7c2ccae950ee2d21c585fccdcdd58220d

SHA256
37118466e955a6ca34b5bdbeebbccaa4da1b857682a986dde4e64e710fd0cb38

SHA512
d7b7b58d9e4ce0f7441048f46470b2a02289699119683ff2b33a7011bae1eba2d419ab637f6cf1f51d5a08b4d8d1b08f69548ecb0484892b331d1c17642e287a

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

Filesize
1KB

MD5
8922f999a87fa684ec8c7a335b19e64b

SHA1
a7a37c39da3f4185fd3d271cf5842d5db460c907

SHA256
edfadcfeb9f9750f0017d0111127297eda3c0f50590408c44f8d894c5af97422

SHA512
abb8fe922afc8801b58944d45e0364ab684b42993e442895302566a4d9f3f26829e3275d22ce8895e191c41d83e1780d74f8723d04698210cbeb7dc6bc29ad92

Download Submit
memory/872-42-0x0000000005CD0000-0x0000000005D36000-memory.dmp

Filesize
408KB

Download
memory/872-41-0x0000000074BD0000-0x0000000075380000-memory.dmp

Filesize
7.7MB

Download
memory/872-35-0x0000000074BD0000-0x0000000075380000-memory.dmp

Filesize
7.7MB

Download
memory/2804-34-0x0000000074BD0000-0x0000000075380000-memory.dmp

Filesize
7.7MB

Download
memory/2804-20-0x00000000008D0000-0x00000000008DE000-memory.dmp

Filesize
56KB

Download
memory/2804-21-0x0000000074BD0000-0x0000000075380000-memory.dmp

Filesize
7.7MB

Download
memory/4832-5-0x0000000004B80000-0x0000000004B8A000-memory.dmp

Filesize
40KB

Download
memory/4832-10-0x0000000074BD0000-0x0000000075380000-memory.dmp

Filesize
7.7MB

Download
memory/4832-9-0x0000000074BD0000-0x0000000075380000-memory.dmp

Filesize
7.7MB

Download
memory/4832-8-0x0000000005760000-0x0000000005776000-memory.dmp

Filesize
88KB

Download
memory/4832-6-0x00000000052F0000-0x0000000005346000-memory.dmp

Filesize
344KB

Download
memory/4832-22-0x0000000074BD0000-0x0000000075380000-memory.dmp

Filesize
7.7MB

Download
memory/4832-7-0x0000000074BD0000-0x0000000075380000-memory.dmp

Filesize
7.7MB

Download
memory/4832-0-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

Filesize
4KB

Download
memory/4832-4-0x0000000004A70000-0x0000000004B02000-memory.dmp

Filesize
584KB

Download
memory/4832-3-0x0000000004BF0000-0x0000000005194000-memory.dmp

Filesize
5.6MB

Download
memory/4832-2-0x0000000004930000-0x00000000049CC000-memory.dmp

Filesize
624KB

Download
memory/4832-1-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads