njrat | 12062466a79412f3a8ed904cc159078b5f12d609ea9eee34ee62885b61e7bc08

General

Target

Purchase-Order.exe
Size

313KB
MD5

98eef34a88d5e5764e73ef2f2fdbbe7c
SHA1

251153d80c187d77e718520067fa103f7ff06c7f
SHA256

84420e6ba6526a6a8ff940b6144497b346e1b0005a9ec7e686025219981d4658
SHA512

628e6c2a859f786300fe98ed8e136a7e49d5650b7c630893534f4f6eb6d62cd4ad44c011783cbdaacbf338245454bd815af1996c2a57976c1fcb057499623be9

Score

10^/10

njrat mon$y evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Mon$y

C2

whmfix009.cf:5409

Mutex

67c692a08f8c138aa1c442e78c2761bc

Attributes

reg_key
67c692a08f8c138aa1c442e78c2761bc
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 2 IoCs

Processes:

invoice.exeinvoice.exe

pid process

1984 invoice.exe
4932 invoice.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
1984	invoice.exe
4932	invoice.exe

Checks computer location settings 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

invoice.exePurchase-Order.exePurchase-Order.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	invoice.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	Purchase-Order.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	Purchase-Order.exe

Drops startup file 2 IoCs

Processes:

invoice.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\67c692a08f8c138aa1c442e78c2761bc.exe	invoice.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\67c692a08f8c138aa1c442e78c2761bc.exe	invoice.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

invoice.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\67c692a08f8c138aa1c442e78c2761bc = "\"C:\\Users\\Admin\\AppData\\Roaming\\invoice.exe\" .."	invoice.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\67c692a08f8c138aa1c442e78c2761bc = "\"C:\\Users\\Admin\\AppData\\Roaming\\invoice.exe\" .."	invoice.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Purchase-Order.exeinvoice.exe

description	pid	process	target process
PID 3396 set thread context of 316	3396	Purchase-Order.exe	Purchase-Order.exe
PID 1984 set thread context of 4932	1984	invoice.exe	invoice.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

2500 schtasks.exe
3960 schtasks.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

Purchase-Order.exeinvoice.exe

pid process

3396 Purchase-Order.exe
3396 Purchase-Order.exe
3396 Purchase-Order.exe
3396 Purchase-Order.exe
1984 invoice.exe
1984 invoice.exe
1984 invoice.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Purchase-Order.exeinvoice.exeinvoice.exe

description pid process

Token: SeDebugPrivilege 3396 Purchase-Order.exe
Token: SeDebugPrivilege 1984 invoice.exe
Token: SeDebugPrivilege 4932 invoice.exe

pid	process
2500	schtasks.exe
3960	schtasks.exe

pid	process
3396	Purchase-Order.exe
3396	Purchase-Order.exe
3396	Purchase-Order.exe
3396	Purchase-Order.exe
1984	invoice.exe
1984	invoice.exe
1984	invoice.exe

description	pid	process
Token: SeDebugPrivilege	3396	Purchase-Order.exe
Token: SeDebugPrivilege	1984	invoice.exe
Token: SeDebugPrivilege	4932	invoice.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

Purchase-Order.exePurchase-Order.exeinvoice.exeinvoice.exe

description	pid	process	target process
PID 3396 wrote to memory of 2500	3396	Purchase-Order.exe	schtasks.exe
PID 3396 wrote to memory of 2500	3396	Purchase-Order.exe	schtasks.exe
PID 3396 wrote to memory of 2500	3396	Purchase-Order.exe	schtasks.exe
PID 3396 wrote to memory of 316	3396	Purchase-Order.exe	Purchase-Order.exe
PID 3396 wrote to memory of 316	3396	Purchase-Order.exe	Purchase-Order.exe
PID 3396 wrote to memory of 316	3396	Purchase-Order.exe	Purchase-Order.exe
PID 3396 wrote to memory of 316	3396	Purchase-Order.exe	Purchase-Order.exe
PID 3396 wrote to memory of 316	3396	Purchase-Order.exe	Purchase-Order.exe
PID 3396 wrote to memory of 316	3396	Purchase-Order.exe	Purchase-Order.exe
PID 3396 wrote to memory of 316	3396	Purchase-Order.exe	Purchase-Order.exe
PID 3396 wrote to memory of 316	3396	Purchase-Order.exe	Purchase-Order.exe
PID 316 wrote to memory of 1984	316	Purchase-Order.exe	invoice.exe
PID 316 wrote to memory of 1984	316	Purchase-Order.exe	invoice.exe
PID 316 wrote to memory of 1984	316	Purchase-Order.exe	invoice.exe
PID 1984 wrote to memory of 3960	1984	invoice.exe	schtasks.exe
PID 1984 wrote to memory of 3960	1984	invoice.exe	schtasks.exe
PID 1984 wrote to memory of 3960	1984	invoice.exe	schtasks.exe
PID 1984 wrote to memory of 4932	1984	invoice.exe	invoice.exe
PID 1984 wrote to memory of 4932	1984	invoice.exe	invoice.exe
PID 1984 wrote to memory of 4932	1984	invoice.exe	invoice.exe
PID 1984 wrote to memory of 4932	1984	invoice.exe	invoice.exe
PID 1984 wrote to memory of 4932	1984	invoice.exe	invoice.exe
PID 1984 wrote to memory of 4932	1984	invoice.exe	invoice.exe
PID 1984 wrote to memory of 4932	1984	invoice.exe	invoice.exe
PID 1984 wrote to memory of 4932	1984	invoice.exe	invoice.exe
PID 4932 wrote to memory of 5084	4932	invoice.exe	netsh.exe
PID 4932 wrote to memory of 5084	4932	invoice.exe	netsh.exe
PID 4932 wrote to memory of 5084	4932	invoice.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\Purchase-Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase-Order.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3396

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fwWXBH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFF30.tmp"
2⤵
- Creates scheduled task(s)
PID:2500

C:\Users\Admin\AppData\Local\Temp\Purchase-Order.exe
"{path}"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:316

C:\Users\Admin\AppData\Roaming\invoice.exe
"C:\Users\Admin\AppData\Roaming\invoice.exe"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1984

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fwWXBH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF3D1.tmp"
4⤵
- Creates scheduled task(s)
PID:3960

C:\Users\Admin\AppData\Roaming\invoice.exe
"{path}"
4⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4932

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\invoice.exe" "invoice.exe" ENABLE
5⤵
PID:5084

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Purchase-Order.exe.log
Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF3D1.tmp
Filesize
1KB

MD5
1180a2d1e88a44826dd85cef90cbbb05

SHA1
4d30bd740dbe5714d4aa8c4676b4299e48709f34

SHA256
f69090a7d9301807ed285b3460e9e7ee50488ecb3438511a9bf67eecade89ad1

SHA512
4f4d1c9c537071af3692820b9956e7af096d454c0d34b595d5df301b542c2e58ab17817a6d697e28df5185d3ccd5fd87a54032177df3d462f8e8e8859539c85c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpFF30.tmp
Filesize
1KB

MD5
1180a2d1e88a44826dd85cef90cbbb05

SHA1
4d30bd740dbe5714d4aa8c4676b4299e48709f34

SHA256
f69090a7d9301807ed285b3460e9e7ee50488ecb3438511a9bf67eecade89ad1

SHA512
4f4d1c9c537071af3692820b9956e7af096d454c0d34b595d5df301b542c2e58ab17817a6d697e28df5185d3ccd5fd87a54032177df3d462f8e8e8859539c85c

Download Submit
C:\Users\Admin\AppData\Roaming\invoice.exe
Filesize
313KB

MD5
98eef34a88d5e5764e73ef2f2fdbbe7c

SHA1
251153d80c187d77e718520067fa103f7ff06c7f

SHA256
84420e6ba6526a6a8ff940b6144497b346e1b0005a9ec7e686025219981d4658

SHA512
628e6c2a859f786300fe98ed8e136a7e49d5650b7c630893534f4f6eb6d62cd4ad44c011783cbdaacbf338245454bd815af1996c2a57976c1fcb057499623be9

Download Submit
C:\Users\Admin\AppData\Roaming\invoice.exe
Filesize
313KB

MD5
98eef34a88d5e5764e73ef2f2fdbbe7c

SHA1
251153d80c187d77e718520067fa103f7ff06c7f

SHA256
84420e6ba6526a6a8ff940b6144497b346e1b0005a9ec7e686025219981d4658

SHA512
628e6c2a859f786300fe98ed8e136a7e49d5650b7c630893534f4f6eb6d62cd4ad44c011783cbdaacbf338245454bd815af1996c2a57976c1fcb057499623be9

Download Submit
C:\Users\Admin\AppData\Roaming\invoice.exe
Filesize
313KB

MD5
98eef34a88d5e5764e73ef2f2fdbbe7c

SHA1
251153d80c187d77e718520067fa103f7ff06c7f

SHA256
84420e6ba6526a6a8ff940b6144497b346e1b0005a9ec7e686025219981d4658

SHA512
628e6c2a859f786300fe98ed8e136a7e49d5650b7c630893534f4f6eb6d62cd4ad44c011783cbdaacbf338245454bd815af1996c2a57976c1fcb057499623be9

Download Submit
memory/316-138-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/316-137-0x0000000000000000-mapping.dmp

Download
memory/1984-140-0x0000000000000000-mapping.dmp

Download
memory/2500-135-0x0000000000000000-mapping.dmp

Download
memory/3396-130-0x00000000003F0000-0x0000000000444000-memory.dmp

Filesize
336KB

Download
memory/3396-134-0x00000000073A0000-0x000000000743C000-memory.dmp

Filesize
624KB

Download
memory/3396-133-0x0000000004E00000-0x0000000004E0A000-memory.dmp

Filesize
40KB

Download
memory/3396-132-0x0000000004E30000-0x0000000004EC2000-memory.dmp

Filesize
584KB

Download
memory/3396-131-0x00000000053E0000-0x0000000005984000-memory.dmp

Filesize
5.6MB

Download
memory/3960-143-0x0000000000000000-mapping.dmp

Download
memory/4932-145-0x0000000000000000-mapping.dmp

Download
memory/5084-148-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads