njrat | 6db28dbae5f2b9f2efbb6419a337bbd3c9b98adfe6cafe7a7df946017bbb77f8

Reason

Machine shutdown

General

Target

New Client.exe
Size

65KB
MD5

418617925234cf8529050924c905963c
SHA1

d0ee8f492b22dbea6323c8ff0ae8f38b15e68f91
SHA256

6db28dbae5f2b9f2efbb6419a337bbd3c9b98adfe6cafe7a7df946017bbb77f8
SHA512

e81c7d29b57d26bf208f47d48a1119244b3bedaa213138eff2317791dd91b0b7eb77eb9b1f2cb1425a0668d351133acbbb91a9dc5005f22d0482f4b5505fa415
SSDEEP

1536:efqK4Tm4BoN36t4QviFw1AjHkBnvbKfLteF3nLrB9z3nIaF9bHS9vM:efqK4C4BoN36t4QviFC8EBnefWl9zYaL

Score

10^/10

njrat hacked discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

Platinum

Botnet

HacKed

C2

127.0.0.1:36811

Mutex

svhost.exe

Attributes

reg_key
svhost.exe
splitter
|Ghost|

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	New Client.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	svhost.exe

Executes dropped EXE 3 IoCs

pid	Process
4412	svhost.exe
4032	svhost.exe
1004	svhost.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svhost.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svhost.exe\" .."	svhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\svhost.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svhost.exe\" .."	svhost.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 10 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	New Client.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	shutdown.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	choice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2884	taskkill.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "234"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3612	schtasks.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	4412	svhost.exe
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: 33	1936	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1936	AUDIODG.EXE
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: 33	4412	svhost.exe
Token: SeIncBasePriorityPrivilege	4412	svhost.exe
Token: SeShutdownPrivilege	2468	shutdown.exe
Token: SeRemoteShutdownPrivilege	2468	shutdown.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4412	svhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
116	LogonUI.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 5088 wrote to memory of 4412	5088	New Client.exe	94
PID 5088 wrote to memory of 4412	5088	New Client.exe	94
PID 5088 wrote to memory of 4412	5088	New Client.exe	94
PID 5088 wrote to memory of 2044	5088	New Client.exe	95
PID 5088 wrote to memory of 2044	5088	New Client.exe	95
PID 5088 wrote to memory of 2044	5088	New Client.exe	95
PID 2044 wrote to memory of 3972	2044	cmd.exe	99
PID 2044 wrote to memory of 3972	2044	cmd.exe	99
PID 2044 wrote to memory of 3972	2044	cmd.exe	99
PID 4412 wrote to memory of 2884	4412	svhost.exe	105
PID 4412 wrote to memory of 2884	4412	svhost.exe	105
PID 4412 wrote to memory of 2884	4412	svhost.exe	105
PID 4412 wrote to memory of 2096	4412	svhost.exe	107
PID 4412 wrote to memory of 2096	4412	svhost.exe	107
PID 4412 wrote to memory of 2096	4412	svhost.exe	107
PID 4412 wrote to memory of 3612	4412	svhost.exe	109
PID 4412 wrote to memory of 3612	4412	svhost.exe	109
PID 4412 wrote to memory of 3612	4412	svhost.exe	109
PID 4412 wrote to memory of 2468	4412	svhost.exe	129
PID 4412 wrote to memory of 2468	4412	svhost.exe	129
PID 4412 wrote to memory of 2468	4412	svhost.exe	129

C:\Users\Admin\AppData\Local\Temp\New Client.exe
"C:\Users\Admin\AppData\Local\Temp\New Client.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5088
- C:\Users\Admin\AppData\Local\Temp\svhost.exe
  "C:\Users\Admin\AppData\Local\Temp\svhost.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4412
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f im Wireshark.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    PID:2884
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2096
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\Admin\AppData\Local\Temp\svhost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3612
- - C:\Windows\SysWOW64\shutdown.exe
    "C:\Windows\System32\shutdown.exe" /s /t 00
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2468
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 5 & Del "C:\Users\Admin\AppData\Local\Temp\New Client.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2044
- - C:\Windows\SysWOW64\choice.exe
    choice /C Y /N /D Y /T 5
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3972

C:\Users\Admin\AppData\Local\Temp\svhost.exe
C:\Users\Admin\AppData\Local\Temp\svhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4032

C:\Users\Admin\AppData\Local\Temp\svhost.exe
C:\Users\Admin\AppData\Local\Temp\svhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1004

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x150 0x464
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1936

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa38ba055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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\svhost.exe.log

Filesize
418B

MD5
50045c5c59ae3eb2db5452fb39e13335

SHA1
56226b40d4458df7e92f802381401e4183c97cb2

SHA256
b90b2a4ba2c69f094edce48807ad1873b1265c83795139fbf4576697fe65cae9

SHA512
bb20f9389e69e4a17fa254bd3b77212797f3be159ec6129b3a1501db3e24fb7b12096fbdbfcc93c24ecdb3cea88eae8a58e279b39c0777b6a4e9d4c15057faa4

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

Filesize
65KB

MD5
418617925234cf8529050924c905963c

SHA1
d0ee8f492b22dbea6323c8ff0ae8f38b15e68f91

SHA256
6db28dbae5f2b9f2efbb6419a337bbd3c9b98adfe6cafe7a7df946017bbb77f8

SHA512
e81c7d29b57d26bf208f47d48a1119244b3bedaa213138eff2317791dd91b0b7eb77eb9b1f2cb1425a0668d351133acbbb91a9dc5005f22d0482f4b5505fa415

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\Files\UserLexicons\SP_FC71B42D814A443789601144BBBBA535.dat

Filesize
940B

MD5
9c68bafa502d3e3a147268e61432f64a

SHA1
e06cf1c06a3e7d4a9dd59ccaa861c6aa4bb9a1e4

SHA256
85b1ef85dc479f3a3fe6ab298f470fe99a8822b62b30abff00203536d80ad250

SHA512
b2c2c87cc0175fbf75c52c6eed94448006b2622ef88bf0dfa1a3044f355ff066574f8060f03e67927ee994c50847411509653433d7efde4fd56ed1f0fccfa088

Download Submit
memory/4412-18-0x0000000005230000-0x000000000523A000-memory.dmp

Filesize
40KB

Download
memory/4412-20-0x0000000006150000-0x0000000006168000-memory.dmp

Filesize
96KB

Download
memory/4412-15-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/4412-16-0x0000000005280000-0x0000000005312000-memory.dmp

Filesize
584KB

Download
memory/4412-17-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/4412-38-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/4412-19-0x00000000054E0000-0x0000000005546000-memory.dmp

Filesize
408KB

Download
memory/4412-26-0x00000000065E0000-0x0000000006602000-memory.dmp

Filesize
136KB

Download
memory/4412-21-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/4412-22-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/4412-25-0x0000000006140000-0x000000000614E000-memory.dmp

Filesize
56KB

Download
memory/5088-3-0x0000000005960000-0x0000000005F04000-memory.dmp

Filesize
5.6MB

Download
memory/5088-2-0x00000000052F0000-0x000000000538C000-memory.dmp

Filesize
624KB

Download
memory/5088-1-0x0000000000950000-0x0000000000966000-memory.dmp

Filesize
88KB

Download
memory/5088-0-0x0000000074EAE000-0x0000000074EAF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads