njrat | f7f241394b49e87736ac0d4eb5998ef6d42b375e9e64b470b364213c88311e58

General

Target

f7f241394b49e87736ac0d4eb5998ef6d42b375e9e64b470b364213c88311e58.exe
Size

219KB
MD5

82c872fe6cbbbec5da19a2f97d0f2741
SHA1

5cbfc12a9513e4a7a87c16df7e0d8b61c5e4a071
SHA256

f7f241394b49e87736ac0d4eb5998ef6d42b375e9e64b470b364213c88311e58
SHA512

99332f03923ddc20827b63f29d2b6ad9d1ab07e9e72a056452d2d982514202d5e603967b1f7d942a494add24c884c57ffa3a895587300a57ccd24837d3a43345
SSDEEP

6144:eV8xLIQ/j6TIZNhGWaOF33OWSkqBvc1xLn:OoMHUHKOxO+cvc1x

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:

922.exesystemBL.exe

pid process

852 922.exe
544 systemBL.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1592 netsh.exe

pid	process
852	922.exe
544	systemBL.exe

pid	process
1592	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:

922.exe

pid process

852 922.exe

pid	process
852	922.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-1-5-21-3406023954-474543476-3319432036-1000\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 19 IoCs

Processes:

systemBL.exe

description	pid	process
Token: SeDebugPrivilege	544	systemBL.exe
Token: 33	544	systemBL.exe
Token: SeIncBasePriorityPrivilege	544	systemBL.exe
Token: 33	544	systemBL.exe
Token: SeIncBasePriorityPrivilege	544	systemBL.exe
Token: 33	544	systemBL.exe
Token: SeIncBasePriorityPrivilege	544	systemBL.exe
Token: 33	544	systemBL.exe
Token: SeIncBasePriorityPrivilege	544	systemBL.exe
Token: 33	544	systemBL.exe
Token: SeIncBasePriorityPrivilege	544	systemBL.exe
Token: 33	544	systemBL.exe
Token: SeIncBasePriorityPrivilege	544	systemBL.exe
Token: 33	544	systemBL.exe
Token: SeIncBasePriorityPrivilege	544	systemBL.exe
Token: 33	544	systemBL.exe
Token: SeIncBasePriorityPrivilege	544	systemBL.exe
Token: 33	544	systemBL.exe
Token: SeIncBasePriorityPrivilege	544	systemBL.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

f7f241394b49e87736ac0d4eb5998ef6d42b375e9e64b470b364213c88311e58.exe922.exesystemBL.exe

description	pid	process	target process
PID 1232 wrote to memory of 852	1232	f7f241394b49e87736ac0d4eb5998ef6d42b375e9e64b470b364213c88311e58.exe	922.exe
PID 1232 wrote to memory of 852	1232	f7f241394b49e87736ac0d4eb5998ef6d42b375e9e64b470b364213c88311e58.exe	922.exe
PID 1232 wrote to memory of 852	1232	f7f241394b49e87736ac0d4eb5998ef6d42b375e9e64b470b364213c88311e58.exe	922.exe
PID 1232 wrote to memory of 852	1232	f7f241394b49e87736ac0d4eb5998ef6d42b375e9e64b470b364213c88311e58.exe	922.exe
PID 852 wrote to memory of 544	852	922.exe	systemBL.exe
PID 852 wrote to memory of 544	852	922.exe	systemBL.exe
PID 852 wrote to memory of 544	852	922.exe	systemBL.exe
PID 852 wrote to memory of 544	852	922.exe	systemBL.exe
PID 544 wrote to memory of 1592	544	systemBL.exe	netsh.exe
PID 544 wrote to memory of 1592	544	systemBL.exe	netsh.exe
PID 544 wrote to memory of 1592	544	systemBL.exe	netsh.exe
PID 544 wrote to memory of 1592	544	systemBL.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\f7f241394b49e87736ac0d4eb5998ef6d42b375e9e64b470b364213c88311e58.exe
"C:\Users\Admin\AppData\Local\Temp\f7f241394b49e87736ac0d4eb5998ef6d42b375e9e64b470b364213c88311e58.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\AppData\Local\Temp\922.exe
  C:\Users\Admin\AppData\Local\Temp\922.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:852
- - 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:544
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\systemBL.exe" "systemBL.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      PID:1592

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\922.exe

Filesize
23KB

MD5
9c480814d52d00cddc8a228e3a700175

SHA1
e7c78acef70734e8555bbf136cfd2b864ec8f2bf

SHA256
d4b79df1194c74f4d7b4d9abfaa78e316835a596881e7145cbaecc197fa2847c

SHA512
1e732e2a537ba952febf5be039db77f024afced0886d17fb009098ba730976a1efb03edfa415e730d876bd746778524e76dd31e52786c81fd505c47b83d2a202

Download Submit
C:\Users\Admin\AppData\Local\Temp\922.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/544-61-0x0000000000000000-mapping.dmp

Download
memory/544-66-0x0000000074870000-0x0000000074E1B000-memory.dmp

Filesize
5.7MB

Download
memory/544-68-0x0000000074870000-0x0000000074E1B000-memory.dmp

Filesize
5.7MB

Download
memory/852-58-0x0000000075C31000-0x0000000075C33000-memory.dmp

Filesize
8KB

Download
memory/852-59-0x0000000074870000-0x0000000074E1B000-memory.dmp

Filesize
5.7MB

Download
memory/852-55-0x0000000000000000-mapping.dmp

Download
memory/852-65-0x0000000074870000-0x0000000074E1B000-memory.dmp

Filesize
5.7MB

Download
memory/1232-54-0x0000000000870000-0x00000000008AE000-memory.dmp

Filesize
248KB

Download
memory/1592-67-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads