njrat | ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17

General

Target

ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17.exe
Size

346KB
MD5

56615ae7f161d858f19ad0fcc49deec8
SHA1

7f6b720ab3f72a7641a2fd91d2febdeb85816eb0
SHA256

ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17
SHA512

639b260b105c945bc2c29602bd70573e6038094388167578a67adde839e0dcc09f5fa1cae663916f99022a23a9bba5341b2fd79117227ceb4d38e330a56ca58d

Score

10^/10

njrat zero evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

ZERO

C2

stub.ignorelist.com:5553

Mutex

a37326026fa6ee5a13f2532ba8c91513

Attributes

reg_key
a37326026fa6ee5a13f2532ba8c91513
splitter
|'|'|

Signatures

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

Processes:

njsvc.exenjsvc.exe

pid process

3248 njsvc.exe
3236 njsvc.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Drops startup file 1 IoCs

Processes:

njsvc.exe

description ioc process

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

pid	process
3248	njsvc.exe
3236	njsvc.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\njsvc.lnk	njsvc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

njsvc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\a37326026fa6ee5a13f2532ba8c91513 = "\"C:\\Users\\Admin\\AppData\\Roaming\\njsvc.exe\" .."	njsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\a37326026fa6ee5a13f2532ba8c91513 = "\"C:\\Users\\Admin\\AppData\\Roaming\\njsvc.exe\" .."	njsvc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

njsvc.exe

description pid process target process

PID 3248 set thread context of 3236 3248 njsvc.exe njsvc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 3248 set thread context of 3236	3248	njsvc.exe	njsvc.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes:

ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17.exenjsvc.exenjsvc.exe

description	pid	process
Token: SeDebugPrivilege	2328	ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17.exe
Token: SeDebugPrivilege	3248	njsvc.exe
Token: SeDebugPrivilege	3236	njsvc.exe
Token: 33	3236	njsvc.exe
Token: SeIncBasePriorityPrivilege	3236	njsvc.exe
Token: 33	3236	njsvc.exe
Token: SeIncBasePriorityPrivilege	3236	njsvc.exe
Token: 33	3236	njsvc.exe
Token: SeIncBasePriorityPrivilege	3236	njsvc.exe
Token: 33	3236	njsvc.exe
Token: SeIncBasePriorityPrivilege	3236	njsvc.exe
Token: 33	3236	njsvc.exe
Token: SeIncBasePriorityPrivilege	3236	njsvc.exe
Token: 33	3236	njsvc.exe
Token: SeIncBasePriorityPrivilege	3236	njsvc.exe
Token: 33	3236	njsvc.exe
Token: SeIncBasePriorityPrivilege	3236	njsvc.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17.execmd.exenjsvc.exenjsvc.exe

description	pid	process	target process
PID 2328 wrote to memory of 3204	2328	ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17.exe	cmd.exe
PID 2328 wrote to memory of 3204	2328	ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17.exe	cmd.exe
PID 2328 wrote to memory of 3204	2328	ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17.exe	cmd.exe
PID 2328 wrote to memory of 3512	2328	ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17.exe	cmd.exe
PID 2328 wrote to memory of 3512	2328	ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17.exe	cmd.exe
PID 2328 wrote to memory of 3512	2328	ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17.exe	cmd.exe
PID 3512 wrote to memory of 3248	3512	cmd.exe	njsvc.exe
PID 3512 wrote to memory of 3248	3512	cmd.exe	njsvc.exe
PID 3512 wrote to memory of 3248	3512	cmd.exe	njsvc.exe
PID 3248 wrote to memory of 3236	3248	njsvc.exe	njsvc.exe
PID 3248 wrote to memory of 3236	3248	njsvc.exe	njsvc.exe
PID 3248 wrote to memory of 3236	3248	njsvc.exe	njsvc.exe
PID 3248 wrote to memory of 3236	3248	njsvc.exe	njsvc.exe
PID 3248 wrote to memory of 3236	3248	njsvc.exe	njsvc.exe
PID 3248 wrote to memory of 3236	3248	njsvc.exe	njsvc.exe
PID 3248 wrote to memory of 3236	3248	njsvc.exe	njsvc.exe
PID 3248 wrote to memory of 3236	3248	njsvc.exe	njsvc.exe
PID 3236 wrote to memory of 984	3236	njsvc.exe	netsh.exe
PID 3236 wrote to memory of 984	3236	njsvc.exe	netsh.exe
PID 3236 wrote to memory of 984	3236	njsvc.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17.exe
"C:\Users\Admin\AppData\Local\Temp\ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2328

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17.exe" "C:\Users\Admin\AppData\Roaming\njsvc.exe"
2⤵
PID:3204

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Roaming\njsvc.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3512

C:\Users\Admin\AppData\Roaming\njsvc.exe
"C:\Users\Admin\AppData\Roaming\njsvc.exe"
3⤵
- Executes dropped EXE
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3248

C:\Users\Admin\AppData\Roaming\njsvc.exe
"C:\Users\Admin\AppData\Roaming\njsvc.exe"
4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3236

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\njsvc.exe" "njsvc.exe" ENABLE
5⤵
PID:984

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\njsvc.exe.log

MD5
29e5c61d6e309e714f2af216a4f5040e

SHA1
1389065c8b7dd7655bc431cd29b80ea51ea6fb8b

SHA256
93edd74fc604add82655969e0d0956098bf57c77341641d93776780f5124e22b

SHA512
ec6a41c46259a693f75128f0637faa13e9dc17652e6eb7c78b96bd6ce1c7add4012a468c4e83bbfe8dfb5e4ce53c5ee58f8ed8d41e825e0404965e7c7dffb476

Download Submit
C:\Users\Admin\AppData\Roaming\njsvc.exe

MD5
56615ae7f161d858f19ad0fcc49deec8

SHA1
7f6b720ab3f72a7641a2fd91d2febdeb85816eb0

SHA256
ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17

SHA512
639b260b105c945bc2c29602bd70573e6038094388167578a67adde839e0dcc09f5fa1cae663916f99022a23a9bba5341b2fd79117227ceb4d38e330a56ca58d

Download Submit
C:\Users\Admin\AppData\Roaming\njsvc.exe

MD5
56615ae7f161d858f19ad0fcc49deec8

SHA1
7f6b720ab3f72a7641a2fd91d2febdeb85816eb0

SHA256
ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17

SHA512
639b260b105c945bc2c29602bd70573e6038094388167578a67adde839e0dcc09f5fa1cae663916f99022a23a9bba5341b2fd79117227ceb4d38e330a56ca58d

Download Submit
C:\Users\Admin\AppData\Roaming\njsvc.exe

MD5
56615ae7f161d858f19ad0fcc49deec8

SHA1
7f6b720ab3f72a7641a2fd91d2febdeb85816eb0

SHA256
ae8fa9b59fb15269e27cbbff6ad480cb53699eb56ff7bb36bcfd1b952a183e17

SHA512
639b260b105c945bc2c29602bd70573e6038094388167578a67adde839e0dcc09f5fa1cae663916f99022a23a9bba5341b2fd79117227ceb4d38e330a56ca58d

Download Submit
memory/984-147-0x0000000000000000-mapping.dmp

Download
memory/2328-121-0x0000000005A00000-0x0000000005A01000-memory.dmp

Filesize
4KB

Download
memory/2328-115-0x0000000000C90000-0x0000000000CEC000-memory.dmp

Filesize
368KB

Download
memory/2328-122-0x000000007F070000-0x000000007F071000-memory.dmp

Filesize
4KB

Download
memory/2328-123-0x0000000005C80000-0x0000000005CE6000-memory.dmp

Filesize
408KB

Download
memory/2328-120-0x0000000005980000-0x00000000059C4000-memory.dmp

Filesize
272KB

Download
memory/2328-119-0x0000000005FB0000-0x00000000064AE000-memory.dmp

Filesize
5.0MB

Download
memory/2328-118-0x0000000005A10000-0x0000000005AA2000-memory.dmp

Filesize
584KB

Download
memory/2328-117-0x0000000002FA0000-0x0000000002FB2000-memory.dmp

Filesize
72KB

Download
memory/2328-116-0x0000000000C90000-0x0000000000CEC000-memory.dmp

Filesize
368KB

Download
memory/3204-124-0x0000000000000000-mapping.dmp

Download
memory/3236-140-0x000000000040748E-mapping.dmp

Download
memory/3236-143-0x0000000000170000-0x000000000017C000-memory.dmp

Filesize
48KB

Download
memory/3236-150-0x0000000004A40000-0x0000000004A4A000-memory.dmp

Filesize
40KB

Download
memory/3236-149-0x0000000004A60000-0x0000000004F5E000-memory.dmp

Filesize
5.0MB

Download
memory/3236-148-0x0000000004BC0000-0x0000000004C52000-memory.dmp

Filesize
584KB

Download
memory/3236-146-0x0000000004F60000-0x000000000545E000-memory.dmp

Filesize
5.0MB

Download
memory/3236-145-0x00000000049A0000-0x0000000004A3C000-memory.dmp

Filesize
624KB

Download
memory/3236-144-0x0000000000170000-0x000000000017C000-memory.dmp

Filesize
48KB

Download
memory/3248-135-0x00000000056F0000-0x00000000056F1000-memory.dmp

Filesize
4KB

Download
memory/3248-130-0x0000000000930000-0x000000000098C000-memory.dmp

Filesize
368KB

Download
memory/3248-129-0x0000000000930000-0x000000000098C000-memory.dmp

Filesize
368KB

Download
memory/3248-138-0x00000000065A0000-0x000000000663C000-memory.dmp

Filesize
624KB

Download
memory/3248-126-0x0000000000000000-mapping.dmp

Download
memory/3248-137-0x0000000005920000-0x0000000005986000-memory.dmp

Filesize
408KB

Download
memory/3248-136-0x000000007F720000-0x000000007F721000-memory.dmp

Filesize
4KB

Download
memory/3248-131-0x0000000002BF0000-0x0000000002C02000-memory.dmp

Filesize
72KB

Download
memory/3248-134-0x0000000005700000-0x0000000005744000-memory.dmp

Filesize
272KB

Download
memory/3248-133-0x0000000005C00000-0x00000000060FE000-memory.dmp

Filesize
5.0MB

Download
memory/3248-132-0x0000000005630000-0x00000000056C2000-memory.dmp

Filesize
584KB

Download
memory/3512-125-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads