njrat | 40707070b08ed22f176b00c8b79e5d4933b1f57f14d2c23025218fc57c0d2fa7

General

Target

40707070b08ed22f176b00c8b79e5d4933b1f57f14d2c23025218fc57c0d2fa7N.exe
Size

23KB
MD5

bcf809aee24bc8d84b1613bd9a8dce70
SHA1

263d6290d18d8779295969c5ea4f31fd9d02b62d
SHA256

40707070b08ed22f176b00c8b79e5d4933b1f57f14d2c23025218fc57c0d2fa7
SHA512

75f2b6a52c9885bccafa53d787351254f6b4d9f3257b4afec796774ecb9c17b5107c3415d01d0926e2ec859aa64cc2e29ae650780d4ea42ea16170a75a148db7
SSDEEP

384:0oWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIt:j7O89p2rRpcnuz

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1196	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	40707070b08ed22f176b00c8b79e5d4933b1f57f14d2c23025218fc57c0d2fa7N.exe

Executes dropped EXE 1 IoCs

pid	Process
3272	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	40707070b08ed22f176b00c8b79e5d4933b1f57f14d2c23025218fc57c0d2fa7N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	3272	server.exe
Token: 33	3272	server.exe
Token: SeIncBasePriorityPrivilege	3272	server.exe
Token: 33	3272	server.exe
Token: SeIncBasePriorityPrivilege	3272	server.exe
Token: 33	3272	server.exe
Token: SeIncBasePriorityPrivilege	3272	server.exe
Token: 33	3272	server.exe
Token: SeIncBasePriorityPrivilege	3272	server.exe
Token: 33	3272	server.exe
Token: SeIncBasePriorityPrivilege	3272	server.exe
Token: 33	3272	server.exe
Token: SeIncBasePriorityPrivilege	3272	server.exe
Token: 33	3272	server.exe
Token: SeIncBasePriorityPrivilege	3272	server.exe
Token: 33	3272	server.exe
Token: SeIncBasePriorityPrivilege	3272	server.exe
Token: 33	3272	server.exe
Token: SeIncBasePriorityPrivilege	3272	server.exe
Token: 33	3272	server.exe
Token: SeIncBasePriorityPrivilege	3272	server.exe
Token: 33	3272	server.exe
Token: SeIncBasePriorityPrivilege	3272	server.exe
Token: 33	3272	server.exe
Token: SeIncBasePriorityPrivilege	3272	server.exe
Token: 33	3272	server.exe
Token: SeIncBasePriorityPrivilege	3272	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 3272	1652	40707070b08ed22f176b00c8b79e5d4933b1f57f14d2c23025218fc57c0d2fa7N.exe	91
PID 1652 wrote to memory of 3272	1652	40707070b08ed22f176b00c8b79e5d4933b1f57f14d2c23025218fc57c0d2fa7N.exe	91
PID 1652 wrote to memory of 3272	1652	40707070b08ed22f176b00c8b79e5d4933b1f57f14d2c23025218fc57c0d2fa7N.exe	91
PID 3272 wrote to memory of 1196	3272	server.exe	95
PID 3272 wrote to memory of 1196	3272	server.exe	95
PID 3272 wrote to memory of 1196	3272	server.exe	95

C:\Users\Admin\AppData\Local\Temp\40707070b08ed22f176b00c8b79e5d4933b1f57f14d2c23025218fc57c0d2fa7N.exe
"C:\Users\Admin\AppData\Local\Temp\40707070b08ed22f176b00c8b79e5d4933b1f57f14d2c23025218fc57c0d2fa7N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3272
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1196

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
23KB

MD5
bcf809aee24bc8d84b1613bd9a8dce70

SHA1
263d6290d18d8779295969c5ea4f31fd9d02b62d

SHA256
40707070b08ed22f176b00c8b79e5d4933b1f57f14d2c23025218fc57c0d2fa7

SHA512
75f2b6a52c9885bccafa53d787351254f6b4d9f3257b4afec796774ecb9c17b5107c3415d01d0926e2ec859aa64cc2e29ae650780d4ea42ea16170a75a148db7

Download Submit
memory/1652-0-0x0000000074DC2000-0x0000000074DC3000-memory.dmp

Filesize
4KB

Download
memory/1652-1-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/1652-2-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/1652-12-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/3272-13-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/3272-14-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/3272-15-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads