njrat | dcabd39d5ccdeb0d94dc2072903f270aa5d68dacc3d4149a9d8e6b90e8396e55

General

Target

e4845dcb52a3c7f7a8d483d73ff03510N.exe
Size

23KB
MD5

e4845dcb52a3c7f7a8d483d73ff03510
SHA1

0aa86ab7e571598dc2498ab1136ade10788b05c1
SHA256

dcabd39d5ccdeb0d94dc2072903f270aa5d68dacc3d4149a9d8e6b90e8396e55
SHA512

2737fe0cc58357bcf408ea3de1b54286a46d56666114a30772e574d2711090495d7f29fc6e3587d4102328a6d73cb68fd20c4667e5f06708f5f9fca282cdb9d2
SSDEEP

384:TPoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZKW:To7O89p2rRpcnu6

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Signatures

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
1696	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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	e4845dcb52a3c7f7a8d483d73ff03510N.exe

Executes dropped EXE 1 IoCs

pid	Process
1520	serve2r.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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\71d4a517242481fcbbd31dd50ae04a6b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\serve2r.exe\" .."	serve2r.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\71d4a517242481fcbbd31dd50ae04a6b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\serve2r.exe\" .."	serve2r.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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	e4845dcb52a3c7f7a8d483d73ff03510N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	serve2r.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	1520	serve2r.exe
Token: 33	1520	serve2r.exe
Token: SeIncBasePriorityPrivilege	1520	serve2r.exe
Token: 33	1520	serve2r.exe
Token: SeIncBasePriorityPrivilege	1520	serve2r.exe
Token: 33	1520	serve2r.exe
Token: SeIncBasePriorityPrivilege	1520	serve2r.exe
Token: 33	1520	serve2r.exe
Token: SeIncBasePriorityPrivilege	1520	serve2r.exe
Token: 33	1520	serve2r.exe
Token: SeIncBasePriorityPrivilege	1520	serve2r.exe
Token: 33	1520	serve2r.exe
Token: SeIncBasePriorityPrivilege	1520	serve2r.exe
Token: 33	1520	serve2r.exe
Token: SeIncBasePriorityPrivilege	1520	serve2r.exe
Token: 33	1520	serve2r.exe
Token: SeIncBasePriorityPrivilege	1520	serve2r.exe
Token: 33	1520	serve2r.exe
Token: SeIncBasePriorityPrivilege	1520	serve2r.exe
Token: 33	1520	serve2r.exe
Token: SeIncBasePriorityPrivilege	1520	serve2r.exe
Token: 33	1520	serve2r.exe
Token: SeIncBasePriorityPrivilege	1520	serve2r.exe
Token: 33	1520	serve2r.exe
Token: SeIncBasePriorityPrivilege	1520	serve2r.exe
Token: 33	1520	serve2r.exe
Token: SeIncBasePriorityPrivilege	1520	serve2r.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4980 wrote to memory of 1520	4980	e4845dcb52a3c7f7a8d483d73ff03510N.exe	92
PID 4980 wrote to memory of 1520	4980	e4845dcb52a3c7f7a8d483d73ff03510N.exe	92
PID 4980 wrote to memory of 1520	4980	e4845dcb52a3c7f7a8d483d73ff03510N.exe	92
PID 1520 wrote to memory of 1696	1520	serve2r.exe	95
PID 1520 wrote to memory of 1696	1520	serve2r.exe	95
PID 1520 wrote to memory of 1696	1520	serve2r.exe	95

C:\Users\Admin\AppData\Local\Temp\e4845dcb52a3c7f7a8d483d73ff03510N.exe
"C:\Users\Admin\AppData\Local\Temp\e4845dcb52a3c7f7a8d483d73ff03510N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4980
- C:\Users\Admin\AppData\Local\Temp\serve2r.exe
  "C:\Users\Admin\AppData\Local\Temp\serve2r.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:1520
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\serve2r.exe" "serve2r.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1696

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\serve2r.exe

Filesize
23KB

MD5
e4845dcb52a3c7f7a8d483d73ff03510

SHA1
0aa86ab7e571598dc2498ab1136ade10788b05c1

SHA256
dcabd39d5ccdeb0d94dc2072903f270aa5d68dacc3d4149a9d8e6b90e8396e55

SHA512
2737fe0cc58357bcf408ea3de1b54286a46d56666114a30772e574d2711090495d7f29fc6e3587d4102328a6d73cb68fd20c4667e5f06708f5f9fca282cdb9d2

Download Submit
memory/1520-12-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/1520-14-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/1520-15-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/4980-0-0x0000000075262000-0x0000000075263000-memory.dmp

Filesize
4KB

Download
memory/4980-1-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/4980-2-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download
memory/4980-13-0x0000000075260000-0x0000000075811000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads