njrat | 00b3837b4417d77fce4803de069ccd1c7c453542067e52601947b744f9bf5239

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
08-09-2023 20:47

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General

Target

1916-1-0x00000000009A0000-0x00000000009B8000-memory.exe
Size

96KB
MD5

c00262699ae0facbf297badd09233876
SHA1

305a02a7c0623004c6b9fa2c91a883f840d751bc
SHA256

00b3837b4417d77fce4803de069ccd1c7c453542067e52601947b744f9bf5239
SHA512

845e7df25e8e4db1203b5f4abeef885c556f9a453ae99333cd0e2ff081f740245fdc1fc6311e1e83349d06895affa640808c67dd93e176fc8fd463c8ceb6ea65
SSDEEP

1536:qExAU0oN36tuQviFw15GHyBnvb3fLteF3nLrB9z3nOaF9bhS9vM:bxAU0oN36tuQviFCYSBnDfWl9zeaF9bV

Score

10^/10

njrat cheats persistence trojan

Malware Config

Extracted

Family

njrat

Version

Platinum

Botnet

Cheats

127.0.0.1:1

Mutex

smss.exe

Attributes

reg_key
smss.exe
splitter
|Ghost|

Signatures

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:

smss.exe1916-1-0x00000000009A0000-0x00000000009B8000-memory.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\Control Panel\International\Geo\Nation	smss.exe
Key value queried	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\Control Panel\International\Geo\Nation	1916-1-0x00000000009A0000-0x00000000009B8000-memory.exe

Drops startup file 3 IoCs

Processes:

smss.exe

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

Executes dropped EXE 5 IoCs

Processes:

smss.exe38176b3bec5740deb70d5441c9fec2fe.exesmss.exefd58716a08c0405c809adb8a935d46b1.exesmss.exe

pid process

3416 smss.exe
1848 38176b3bec5740deb70d5441c9fec2fe.exe
892 smss.exe
4296 fd58716a08c0405c809adb8a935d46b1.exe
4732 smss.exe

pid	process
3416	smss.exe
1848	38176b3bec5740deb70d5441c9fec2fe.exe
892	smss.exe
4296	fd58716a08c0405c809adb8a935d46b1.exe
4732	smss.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

smss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\smss.exe\" .."	smss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\smss.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\smss.exe\" .."	smss.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exeschtasks.exe

pid process

2672 schtasks.exe
1384 schtasks.exe
3312 schtasks.exe
4016 schtasks.exe

pid	process
2672	schtasks.exe
1384	schtasks.exe
3312	schtasks.exe
4016	schtasks.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

Processes:

smss.exeAUDIODG.EXE

description	pid	process
Token: SeDebugPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	1036	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1036	AUDIODG.EXE
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe
Token: 33	3416	smss.exe
Token: SeIncBasePriorityPrivilege	3416	smss.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

1916-1-0x00000000009A0000-0x00000000009B8000-memory.execmd.exesmss.exe

description	pid	process	target process
PID 216 wrote to memory of 3416	216	1916-1-0x00000000009A0000-0x00000000009B8000-memory.exe	smss.exe
PID 216 wrote to memory of 3416	216	1916-1-0x00000000009A0000-0x00000000009B8000-memory.exe	smss.exe
PID 216 wrote to memory of 3416	216	1916-1-0x00000000009A0000-0x00000000009B8000-memory.exe	smss.exe
PID 216 wrote to memory of 3200	216	1916-1-0x00000000009A0000-0x00000000009B8000-memory.exe	cmd.exe
PID 216 wrote to memory of 3200	216	1916-1-0x00000000009A0000-0x00000000009B8000-memory.exe	cmd.exe
PID 216 wrote to memory of 3200	216	1916-1-0x00000000009A0000-0x00000000009B8000-memory.exe	cmd.exe
PID 3200 wrote to memory of 2864	3200	cmd.exe	choice.exe
PID 3200 wrote to memory of 2864	3200	cmd.exe	choice.exe
PID 3200 wrote to memory of 2864	3200	cmd.exe	choice.exe
PID 3416 wrote to memory of 3644	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 3644	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 3644	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 4016	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 4016	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 4016	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 4124	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 4124	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 4124	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 2672	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 2672	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 2672	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 1848	3416	smss.exe	38176b3bec5740deb70d5441c9fec2fe.exe
PID 3416 wrote to memory of 1848	3416	smss.exe	38176b3bec5740deb70d5441c9fec2fe.exe
PID 3416 wrote to memory of 4296	3416	smss.exe	fd58716a08c0405c809adb8a935d46b1.exe
PID 3416 wrote to memory of 4296	3416	smss.exe	fd58716a08c0405c809adb8a935d46b1.exe
PID 3416 wrote to memory of 1380	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 1380	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 1380	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 1384	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 1384	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 1384	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 4192	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 4192	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 4192	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 3312	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 3312	3416	smss.exe	schtasks.exe
PID 3416 wrote to memory of 3312	3416	smss.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\1916-1-0x00000000009A0000-0x00000000009B8000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\1916-1-0x00000000009A0000-0x00000000009B8000-memory.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:216

C:\Users\Admin\AppData\Local\Temp\smss.exe
"C:\Users\Admin\AppData\Local\Temp\smss.exe"
2⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3416

C:\Windows\SysWOW64\schtasks.exe
schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
3⤵
PID:3644

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\Admin\AppData\Local\Temp\smss.exe
3⤵
- Creates scheduled task(s)
PID:4016

C:\Windows\SysWOW64\schtasks.exe
schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
3⤵
PID:4124

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\Admin\AppData\Local\Temp\smss.exe
3⤵
- Creates scheduled task(s)
PID:2672

C:\Users\Admin\AppData\Local\Temp\38176b3bec5740deb70d5441c9fec2fe.exe
"C:\Users\Admin\AppData\Local\Temp\38176b3bec5740deb70d5441c9fec2fe.exe"
3⤵
- Executes dropped EXE
PID:1848

C:\Users\Admin\AppData\Local\Temp\fd58716a08c0405c809adb8a935d46b1.exe
"C:\Users\Admin\AppData\Local\Temp\fd58716a08c0405c809adb8a935d46b1.exe"
3⤵
- Executes dropped EXE
PID:4296

C:\Windows\SysWOW64\schtasks.exe
schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
3⤵
PID:1380

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\Admin\AppData\Local\Temp\smss.exe
3⤵
- Creates scheduled task(s)
PID:1384

C:\Windows\SysWOW64\schtasks.exe
schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
3⤵
PID:4192

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\Admin\AppData\Local\Temp\smss.exe
3⤵
- Creates scheduled task(s)
PID:3312

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\1916-1-0x00000000009A0000-0x00000000009B8000-memory.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3200

C:\Windows\SysWOW64\choice.exe
choice /C Y /N /D Y /T 5
3⤵
PID:2864

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x150 0x33c
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1036

C:\Users\Admin\AppData\Local\Temp\smss.exe
C:\Users\Admin\AppData\Local\Temp\smss.exe
1⤵
- Executes dropped EXE
PID:892

C:\Users\Admin\AppData\Local\Temp\smss.exe
C:\Users\Admin\AppData\Local\Temp\smss.exe
1⤵
- Executes dropped EXE
PID:4732

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\smss.exe.log
Filesize
319B

MD5
da4fafeffe21b7cb3a8c170ca7911976

SHA1
50ef77e2451ab60f93f4db88325b897d215be5ad

SHA256
7341a4a13e81cbb5b7f39ec47bb45f84836b08b8d8e3ea231d2c7dad982094f7

SHA512
0bc24b69460f31a0ebc0628b99908d818ee85feb7e4b663271d9375b30cced0cd55a0bbf8edff1281a4c886ddf4476ffc989c283069cdcb1235ffcb265580fc6

Download Submit
C:\Users\Admin\AppData\Local\Temp\38176b3bec5740deb70d5441c9fec2fe.exe
Filesize
4.7MB

MD5
1d7ec5c0d6ee4de23463e0d80d9b7b79

SHA1
743d3856c750e7a2a3254ba6e69d15b8146697ad

SHA256
05569c64af3c01d4094782cfedf3d167288167c13ba25c1562235396dcb15cf7

SHA512
3137d4c5f53490792dcc4d4d9baef38e5a2a4ee6fbfdeb3dd57039e8ce3f5de3f7dabb728f17e478287fb9b34717ed108228ace7be180f0b226f61ba10f24a0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\38176b3bec5740deb70d5441c9fec2fe.exe
Filesize
4.7MB

MD5
1d7ec5c0d6ee4de23463e0d80d9b7b79

SHA1
743d3856c750e7a2a3254ba6e69d15b8146697ad

SHA256
05569c64af3c01d4094782cfedf3d167288167c13ba25c1562235396dcb15cf7

SHA512
3137d4c5f53490792dcc4d4d9baef38e5a2a4ee6fbfdeb3dd57039e8ce3f5de3f7dabb728f17e478287fb9b34717ed108228ace7be180f0b226f61ba10f24a0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\38176b3bec5740deb70d5441c9fec2fe.exe
Filesize
4.7MB

MD5
1d7ec5c0d6ee4de23463e0d80d9b7b79

SHA1
743d3856c750e7a2a3254ba6e69d15b8146697ad

SHA256
05569c64af3c01d4094782cfedf3d167288167c13ba25c1562235396dcb15cf7

SHA512
3137d4c5f53490792dcc4d4d9baef38e5a2a4ee6fbfdeb3dd57039e8ce3f5de3f7dabb728f17e478287fb9b34717ed108228ace7be180f0b226f61ba10f24a0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\fd58716a08c0405c809adb8a935d46b1.exe
Filesize
4.7MB

MD5
1d7ec5c0d6ee4de23463e0d80d9b7b79

SHA1
743d3856c750e7a2a3254ba6e69d15b8146697ad

SHA256
05569c64af3c01d4094782cfedf3d167288167c13ba25c1562235396dcb15cf7

SHA512
3137d4c5f53490792dcc4d4d9baef38e5a2a4ee6fbfdeb3dd57039e8ce3f5de3f7dabb728f17e478287fb9b34717ed108228ace7be180f0b226f61ba10f24a0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\fd58716a08c0405c809adb8a935d46b1.exe
Filesize
4.7MB

MD5
1d7ec5c0d6ee4de23463e0d80d9b7b79

SHA1
743d3856c750e7a2a3254ba6e69d15b8146697ad

SHA256
05569c64af3c01d4094782cfedf3d167288167c13ba25c1562235396dcb15cf7

SHA512
3137d4c5f53490792dcc4d4d9baef38e5a2a4ee6fbfdeb3dd57039e8ce3f5de3f7dabb728f17e478287fb9b34717ed108228ace7be180f0b226f61ba10f24a0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\smss.exe
Filesize
96KB

MD5
c00262699ae0facbf297badd09233876

SHA1
305a02a7c0623004c6b9fa2c91a883f840d751bc

SHA256
00b3837b4417d77fce4803de069ccd1c7c453542067e52601947b744f9bf5239

SHA512
845e7df25e8e4db1203b5f4abeef885c556f9a453ae99333cd0e2ff081f740245fdc1fc6311e1e83349d06895affa640808c67dd93e176fc8fd463c8ceb6ea65

Download Submit
C:\Users\Admin\AppData\Local\Temp\smss.exe
Filesize
96KB

MD5
c00262699ae0facbf297badd09233876

SHA1
305a02a7c0623004c6b9fa2c91a883f840d751bc

SHA256
00b3837b4417d77fce4803de069ccd1c7c453542067e52601947b744f9bf5239

SHA512
845e7df25e8e4db1203b5f4abeef885c556f9a453ae99333cd0e2ff081f740245fdc1fc6311e1e83349d06895affa640808c67dd93e176fc8fd463c8ceb6ea65

Download Submit
C:\Users\Admin\AppData\Local\Temp\smss.exe
Filesize
96KB

MD5
c00262699ae0facbf297badd09233876

SHA1
305a02a7c0623004c6b9fa2c91a883f840d751bc

SHA256
00b3837b4417d77fce4803de069ccd1c7c453542067e52601947b744f9bf5239

SHA512
845e7df25e8e4db1203b5f4abeef885c556f9a453ae99333cd0e2ff081f740245fdc1fc6311e1e83349d06895affa640808c67dd93e176fc8fd463c8ceb6ea65

Download Submit
C:\Users\Admin\AppData\Local\Temp\smss.exe
Filesize
96KB

MD5
c00262699ae0facbf297badd09233876

SHA1
305a02a7c0623004c6b9fa2c91a883f840d751bc

SHA256
00b3837b4417d77fce4803de069ccd1c7c453542067e52601947b744f9bf5239

SHA512
845e7df25e8e4db1203b5f4abeef885c556f9a453ae99333cd0e2ff081f740245fdc1fc6311e1e83349d06895affa640808c67dd93e176fc8fd463c8ceb6ea65

Download Submit
C:\Users\Admin\AppData\Local\Temp\smss.exe
Filesize
96KB

MD5
c00262699ae0facbf297badd09233876

SHA1
305a02a7c0623004c6b9fa2c91a883f840d751bc

SHA256
00b3837b4417d77fce4803de069ccd1c7c453542067e52601947b744f9bf5239

SHA512
845e7df25e8e4db1203b5f4abeef885c556f9a453ae99333cd0e2ff081f740245fdc1fc6311e1e83349d06895affa640808c67dd93e176fc8fd463c8ceb6ea65

Download Submit
memory/216-0-0x0000000074630000-0x0000000074BE1000-memory.dmp

Filesize
5.7MB

Download
memory/216-2-0x00000000008A0000-0x00000000008B0000-memory.dmp

Filesize
64KB

Download
memory/216-1-0x0000000074630000-0x0000000074BE1000-memory.dmp

Filesize
5.7MB

Download
memory/216-13-0x0000000074630000-0x0000000074BE1000-memory.dmp

Filesize
5.7MB

Download
memory/892-36-0x0000000074630000-0x0000000074BE1000-memory.dmp

Filesize
5.7MB

Download
memory/892-37-0x0000000074630000-0x0000000074BE1000-memory.dmp

Filesize
5.7MB

Download
memory/892-39-0x0000000074630000-0x0000000074BE1000-memory.dmp

Filesize
5.7MB

Download
memory/1848-33-0x00007FF982910000-0x00007FF9833D1000-memory.dmp

Filesize
10.8MB

Download
memory/1848-34-0x000002EBF65E0000-0x000002EBF65F0000-memory.dmp

Filesize
64KB

Download
memory/1848-32-0x000002EBF65E0000-0x000002EBF65F0000-memory.dmp

Filesize
64KB

Download
memory/1848-30-0x00007FF982910000-0x00007FF9833D1000-memory.dmp

Filesize
10.8MB

Download
memory/1848-31-0x000002EBF3880000-0x000002EBF3D3A000-memory.dmp

Filesize
4.7MB

Download
memory/3416-14-0x0000000074630000-0x0000000074BE1000-memory.dmp

Filesize
5.7MB

Download
memory/3416-18-0x0000000074630000-0x0000000074BE1000-memory.dmp

Filesize
5.7MB

Download
memory/3416-12-0x0000000074630000-0x0000000074BE1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-51-0x00007FF982910000-0x00007FF9833D1000-memory.dmp

Filesize
10.8MB

Download
memory/4296-52-0x0000022B7DAA0000-0x0000022B7DAB0000-memory.dmp

Filesize
64KB

Download
memory/4296-53-0x00007FF982910000-0x00007FF9833D1000-memory.dmp

Filesize
10.8MB

Download
memory/4296-54-0x0000022B7DAA0000-0x0000022B7DAB0000-memory.dmp

Filesize
64KB

Download
memory/4732-57-0x0000000074630000-0x0000000074BE1000-memory.dmp

Filesize
5.7MB

Download
memory/4732-58-0x0000000074630000-0x0000000074BE1000-memory.dmp

Filesize
5.7MB

Download
memory/4732-59-0x0000000074630000-0x0000000074BE1000-memory.dmp

Filesize
5.7MB

Download