njrat | aa81950bda657f43ecc174b1b0d1a10f3739fced1ab6c113dcf2a881cc55b027

General

Target

aa81950bda657f43ecc174b1b0d1a10f3739fced1ab6c113dcf2a881cc55b027.exe
Size

219KB
MD5

b288ff4537ba7155f61ea09050be6635
SHA1

29cae56b763a32c257c98a751942b23d5a775e2d
SHA256

aa81950bda657f43ecc174b1b0d1a10f3739fced1ab6c113dcf2a881cc55b027
SHA512

bb64f791b4c9570913a10da82589aec105e65b8020ff29f1a6cd605982fbe7d37332d4818fca2f293df94bb42cb9a5907c54f002d397060c6965f70f4b26892e
SSDEEP

3072:m538xVrxLIQ/j69ZAmqVFtVNhGKxZRGOFhhnbz/OWjuiQQhU0:mV8xLIQ/j6TIZNhGWaOF33OWSk

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Hacked

C2

kissme1988.no-ip.biz:5552

Mutex

dc57475995c921da5a2603cdc0101794

Attributes

reg_key
dc57475995c921da5a2603cdc0101794
splitter
|'|'|

Signatures

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

Processes:

758.exesystemBL.exe

pid process

1760 758.exe
1344 systemBL.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1572 netsh.exe

pid	process
1760	758.exe
1344	systemBL.exe

pid	process
1572	netsh.exe

Drops startup file 2 IoCs

Processes:

systemBL.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dc57475995c921da5a2603cdc0101794.exe	systemBL.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dc57475995c921da5a2603cdc0101794.exe	systemBL.exe

Loads dropped DLL 1 IoCs

Processes:

758.exe

pid process

1760 758.exe

pid	process
1760	758.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

systemBL.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\dc57475995c921da5a2603cdc0101794 = "\"C:\\Users\\Admin\\AppData\\Roaming\\systemBL.exe\" .."	systemBL.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\dc57475995c921da5a2603cdc0101794 = "\"C:\\Users\\Admin\\AppData\\Roaming\\systemBL.exe\" .."	systemBL.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 15 IoCs

Processes:

systemBL.exe

description	pid	process
Token: SeDebugPrivilege	1344	systemBL.exe
Token: 33	1344	systemBL.exe
Token: SeIncBasePriorityPrivilege	1344	systemBL.exe
Token: 33	1344	systemBL.exe
Token: SeIncBasePriorityPrivilege	1344	systemBL.exe
Token: 33	1344	systemBL.exe
Token: SeIncBasePriorityPrivilege	1344	systemBL.exe
Token: 33	1344	systemBL.exe
Token: SeIncBasePriorityPrivilege	1344	systemBL.exe
Token: 33	1344	systemBL.exe
Token: SeIncBasePriorityPrivilege	1344	systemBL.exe
Token: 33	1344	systemBL.exe
Token: SeIncBasePriorityPrivilege	1344	systemBL.exe
Token: 33	1344	systemBL.exe
Token: SeIncBasePriorityPrivilege	1344	systemBL.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

aa81950bda657f43ecc174b1b0d1a10f3739fced1ab6c113dcf2a881cc55b027.exe758.exesystemBL.exe

description	pid	process	target process
PID 1756 wrote to memory of 1760	1756	aa81950bda657f43ecc174b1b0d1a10f3739fced1ab6c113dcf2a881cc55b027.exe	758.exe
PID 1756 wrote to memory of 1760	1756	aa81950bda657f43ecc174b1b0d1a10f3739fced1ab6c113dcf2a881cc55b027.exe	758.exe
PID 1756 wrote to memory of 1760	1756	aa81950bda657f43ecc174b1b0d1a10f3739fced1ab6c113dcf2a881cc55b027.exe	758.exe
PID 1756 wrote to memory of 1760	1756	aa81950bda657f43ecc174b1b0d1a10f3739fced1ab6c113dcf2a881cc55b027.exe	758.exe
PID 1760 wrote to memory of 1344	1760	758.exe	systemBL.exe
PID 1760 wrote to memory of 1344	1760	758.exe	systemBL.exe
PID 1760 wrote to memory of 1344	1760	758.exe	systemBL.exe
PID 1760 wrote to memory of 1344	1760	758.exe	systemBL.exe
PID 1344 wrote to memory of 1572	1344	systemBL.exe	netsh.exe
PID 1344 wrote to memory of 1572	1344	systemBL.exe	netsh.exe
PID 1344 wrote to memory of 1572	1344	systemBL.exe	netsh.exe
PID 1344 wrote to memory of 1572	1344	systemBL.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\aa81950bda657f43ecc174b1b0d1a10f3739fced1ab6c113dcf2a881cc55b027.exe
"C:\Users\Admin\AppData\Local\Temp\aa81950bda657f43ecc174b1b0d1a10f3739fced1ab6c113dcf2a881cc55b027.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1756

C:\Users\Admin\AppData\Local\Temp\758.exe
C:\Users\Admin\AppData\Local\Temp\758.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1760

C:\Users\Admin\AppData\Roaming\systemBL.exe
"C:\Users\Admin\AppData\Roaming\systemBL.exe"
3⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1344

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\systemBL.exe" "systemBL.exe" ENABLE
4⤵
- Modifies Windows Firewall
PID:1572

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\758.exe

Filesize
23KB

MD5
9c480814d52d00cddc8a228e3a700175

SHA1
e7c78acef70734e8555bbf136cfd2b864ec8f2bf

SHA256
d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c

SHA512
1e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202

Download Submit
C:\Users\Admin\AppData\Local\Temp\758.exe

Filesize
23KB

MD5
9c480814d52d00cddc8a228e3a700175

SHA1
e7c78acef70734e8555bbf136cfd2b864ec8f2bf

SHA256
d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c

SHA512
1e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202

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

Filesize
23KB

MD5
9c480814d52d00cddc8a228e3a700175

SHA1
e7c78acef70734e8555bbf136cfd2b864ec8f2bf

SHA256
d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c

SHA512
1e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202

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

Filesize
23KB

MD5
9c480814d52d00cddc8a228e3a700175

SHA1
e7c78acef70734e8555bbf136cfd2b864ec8f2bf

SHA256
d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c

SHA512
1e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202

Download Submit
\Users\Admin\AppData\Roaming\systemBL.exe

Filesize
23KB

MD5
9c480814d52d00cddc8a228e3a700175

SHA1
e7c78acef70734e8555bbf136cfd2b864ec8f2bf

SHA256
d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c

SHA512
1e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202

Download Submit
memory/1344-61-0x0000000000000000-mapping.dmp

Download
memory/1344-66-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/1344-67-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/1572-68-0x0000000000000000-mapping.dmp

Download
memory/1756-54-0x00000000001B0000-0x00000000001EE000-memory.dmp

Filesize
248KB

Download
memory/1760-58-0x0000000076171000-0x0000000076173000-memory.dmp

Filesize
8KB

Download
memory/1760-59-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/1760-55-0x0000000000000000-mapping.dmp

Download
memory/1760-65-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads