njrat | c42fbc81025b131b0f046e3e6de102f417e0a719966f893d550b771f6e7d0a26

General

Target

c42fbc81025b131b0f046e3e6de102f417e0a719966f893d550b771f6e7d0a26.exe
Size

524KB
MD5

854dd559296301a24dd94ed9e04255e3
SHA1

35308b49108320da886ac8ea6e52b654f596d482
SHA256

c42fbc81025b131b0f046e3e6de102f417e0a719966f893d550b771f6e7d0a26
SHA512

a3bc9c2d129297dcb8e52575c6cf83d868088e0c2120b7ee50b89d14124eb2c0dee00d58502ddad0fffc7a181273fecde0fcb4af14b7dfd5c277076e781ce3c7
SSDEEP

6144:vBjKtt8sieagnL5eVhPVm+hNr+FT56xnTWyl4BK7RBm26jyzaJ/34B26CX2//GKl:vd2t8QagVeLPVlhNq156lIEg6ZCX2//x

Score

10^/10

njrat 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
2588	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\62d1b41e3c9d1786634c63165669b7a9.exe	system32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\62d1b41e3c9d1786634c63165669b7a9.exe	system32.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	system32.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\62d1b41e3c9d1786634c63165669b7a9 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system32.exe\" .."	system32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\62d1b41e3c9d1786634c63165669b7a9 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system32.exe\" .."	system32.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\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
2840	c42fbc81025b131b0f046e3e6de102f417e0a719966f893d550b771f6e7d0a26.exe
2840	c42fbc81025b131b0f046e3e6de102f417e0a719966f893d550b771f6e7d0a26.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe
2856	system32.exe

Suspicious use of AdjustPrivilegeToken 28 IoCs

description	pid	Process
Token: SeDebugPrivilege	2840	c42fbc81025b131b0f046e3e6de102f417e0a719966f893d550b771f6e7d0a26.exe
Token: SeDebugPrivilege	2856	system32.exe
Token: 33	2856	system32.exe
Token: SeIncBasePriorityPrivilege	2856	system32.exe
Token: 33	2856	system32.exe
Token: SeIncBasePriorityPrivilege	2856	system32.exe
Token: 33	2856	system32.exe
Token: SeIncBasePriorityPrivilege	2856	system32.exe
Token: 33	2856	system32.exe
Token: SeIncBasePriorityPrivilege	2856	system32.exe
Token: 33	2856	system32.exe
Token: SeIncBasePriorityPrivilege	2856	system32.exe
Token: 33	2856	system32.exe
Token: SeIncBasePriorityPrivilege	2856	system32.exe
Token: 33	2856	system32.exe
Token: SeIncBasePriorityPrivilege	2856	system32.exe
Token: 33	2856	system32.exe
Token: SeIncBasePriorityPrivilege	2856	system32.exe
Token: 33	2856	system32.exe
Token: SeIncBasePriorityPrivilege	2856	system32.exe
Token: 33	2856	system32.exe
Token: SeIncBasePriorityPrivilege	2856	system32.exe
Token: 33	2856	system32.exe
Token: SeIncBasePriorityPrivilege	2856	system32.exe
Token: 33	2856	system32.exe
Token: SeIncBasePriorityPrivilege	2856	system32.exe
Token: 33	2856	system32.exe
Token: SeIncBasePriorityPrivilege	2856	system32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2856	2840	c42fbc81025b131b0f046e3e6de102f417e0a719966f893d550b771f6e7d0a26.exe	30
PID 2840 wrote to memory of 2856	2840	c42fbc81025b131b0f046e3e6de102f417e0a719966f893d550b771f6e7d0a26.exe	30
PID 2840 wrote to memory of 2856	2840	c42fbc81025b131b0f046e3e6de102f417e0a719966f893d550b771f6e7d0a26.exe	30
PID 2856 wrote to memory of 2588	2856	system32.exe	31
PID 2856 wrote to memory of 2588	2856	system32.exe	31
PID 2856 wrote to memory of 2588	2856	system32.exe	31

C:\Users\Admin\AppData\Local\Temp\c42fbc81025b131b0f046e3e6de102f417e0a719966f893d550b771f6e7d0a26.exe
"C:\Users\Admin\AppData\Local\Temp\c42fbc81025b131b0f046e3e6de102f417e0a719966f893d550b771f6e7d0a26.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Users\Admin\AppData\Local\Temp\system32.exe
  "C:\Users\Admin\AppData\Local\Temp\system32.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2856
- - C:\Windows\system32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system32.exe" "system32.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:2588

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\system32.exe

Filesize
524KB

MD5
854dd559296301a24dd94ed9e04255e3

SHA1
35308b49108320da886ac8ea6e52b654f596d482

SHA256
c42fbc81025b131b0f046e3e6de102f417e0a719966f893d550b771f6e7d0a26

SHA512
a3bc9c2d129297dcb8e52575c6cf83d868088e0c2120b7ee50b89d14124eb2c0dee00d58502ddad0fffc7a181273fecde0fcb4af14b7dfd5c277076e781ce3c7

Download Submit
memory/2840-4-0x0000000001270000-0x0000000001300000-memory.dmp

Filesize
576KB

Download
memory/2840-3-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

Filesize
9.6MB

Download
memory/2840-2-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

Filesize
9.6MB

Download
memory/2840-1-0x0000000000B60000-0x0000000000BD6000-memory.dmp

Filesize
472KB

Download
memory/2840-0-0x000007FEF5A9E000-0x000007FEF5A9F000-memory.dmp

Filesize
4KB

Download
memory/2840-12-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

Filesize
9.6MB

Download
memory/2856-13-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

Filesize
9.6MB

Download
memory/2856-14-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

Filesize
9.6MB

Download
memory/2856-15-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

Filesize
9.6MB

Download
memory/2856-17-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads