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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	B553ABB412BA34BC311058EE33CFC397.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	Skype.exe

Drops startup file 4 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
4880	Skype.exe
3316	Payload.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\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Payload.exe"	Skype.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\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-1-5-21-4089630652-1596403869-279772308-1000\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

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	B553ABB412BA34BC311058EE33CFC397.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe
Token: 33	3316	Payload.exe
Token: SeIncBasePriorityPrivilege	3316	Payload.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1312 wrote to memory of 4880	1312	B553ABB412BA34BC311058EE33CFC397.exe	89
PID 1312 wrote to memory of 4880	1312	B553ABB412BA34BC311058EE33CFC397.exe	89
PID 1312 wrote to memory of 4880	1312	B553ABB412BA34BC311058EE33CFC397.exe	89
PID 4880 wrote to memory of 3316	4880	Skype.exe	97
PID 4880 wrote to memory of 3316	4880	Skype.exe	97
PID 4880 wrote to memory of 3316	4880	Skype.exe	97
PID 4880 wrote to memory of 1336	4880	Skype.exe	98
PID 4880 wrote to memory of 1336	4880	Skype.exe	98
PID 4880 wrote to memory of 1336	4880	Skype.exe	98

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1336	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:1312
- 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:4880
- - 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:3316
- - 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:1336

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
9d8feb2f0d0f90f04f25b8006be83fdc

SHA1
c35b889767be595af5d69417a6253cb0d0a1af0e

SHA256
50610114ae6b7ac7ee1c6bb520e567f656f4bac43245e336f511f46126ac3ff7

SHA512
7479d710887029fa2b3a46e9aeecda1e8b21dbabef5bf7626d86e4ace729ffd562b9d52452dbc2ebc893a530a54775c64cde74f52f9d5bcb4484899ef6c3f8f1

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

Filesize
1KB

MD5
4b9d1668d2734e11056f2535324845c2

SHA1
3d3a09118b50bd01f6445c24d483ea25baebb918

SHA256
8e0fef9aeb3af819fb5ccfdcfdf937f254ba4b5e26d96c1d0e37b0873ae524c0

SHA512
708d27792ebc73edcc6d53b44dd66eadf074aca1a05ff0690b7bad134b0afd1654fd450015b64695364fddd7bcc99626a416025b6ff55b50c616e0b9fa71bb25

Download Submit
memory/1312-8-0x00000000054E0000-0x00000000054F6000-memory.dmp

Filesize
88KB

Download
memory/1312-10-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/1312-5-0x0000000004B80000-0x0000000004B8A000-memory.dmp

Filesize
40KB

Download
memory/1312-6-0x0000000004BE0000-0x0000000004C36000-memory.dmp

Filesize
344KB

Download
memory/1312-7-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/1312-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/1312-9-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/1312-4-0x0000000004A50000-0x0000000004AE2000-memory.dmp

Filesize
584KB

Download
memory/1312-3-0x0000000004C90000-0x0000000005234000-memory.dmp

Filesize
5.6MB

Download
memory/1312-1-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1312-2-0x0000000004970000-0x0000000004A0C000-memory.dmp

Filesize
624KB

Download
memory/1312-22-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/3316-40-0x00000000059D0000-0x0000000005A36000-memory.dmp

Filesize
408KB

Download
memory/4880-34-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/4880-21-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/4880-19-0x00000000007B0000-0x00000000007BE000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads