njrat | 91aeac27a8ca345eaa6926aecaf8868888d5b14e1164b54d3c57fec6aedef22e

General

Target

ff70095137235f6ca0adde65cf76d52b_JaffaCakes118.exe
Size

25KB
MD5

ff70095137235f6ca0adde65cf76d52b
SHA1

6d58603b98c1e5ff21a65c8db1d9a76363c37b26
SHA256

91aeac27a8ca345eaa6926aecaf8868888d5b14e1164b54d3c57fec6aedef22e
SHA512

4a526b173eb3b78580962be6c11792b8fc84a2d9fcc5d680b9ab92f5c00c65f0ca307f2c878778194e80b30683c3f738ff5e12e8cab5d6aeeacefc3535f626aa
SSDEEP

384:bc6CqbFYh3odrVCGiHssDB4b6i6fgpEupNXRmRvR6JZlbw8hqIusZzZ2KXNek+vD:AIU0tw3RpcnuW

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
2320	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	ff70095137235f6ca0adde65cf76d52b_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3b0993c80a0a836b6ed4d0b2940db392.exe	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3b0993c80a0a836b6ed4d0b2940db392.exe	system.exe

Executes dropped EXE 1 IoCs

pid	Process
4880	system.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\3b0993c80a0a836b6ed4d0b2940db392 = "\"C:\\Users\\Admin\\AppData\\Roaming\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\3b0993c80a0a836b6ed4d0b2940db392 = "\"C:\\Users\\Admin\\AppData\\Roaming\\system.exe\" .."	system.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	ff70095137235f6ca0adde65cf76d52b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe
Token: 33	4880	system.exe
Token: SeIncBasePriorityPrivilege	4880	system.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4916 wrote to memory of 4880	4916	ff70095137235f6ca0adde65cf76d52b_JaffaCakes118.exe	84
PID 4916 wrote to memory of 4880	4916	ff70095137235f6ca0adde65cf76d52b_JaffaCakes118.exe	84
PID 4916 wrote to memory of 4880	4916	ff70095137235f6ca0adde65cf76d52b_JaffaCakes118.exe	84
PID 4880 wrote to memory of 2320	4880	system.exe	90
PID 4880 wrote to memory of 2320	4880	system.exe	90
PID 4880 wrote to memory of 2320	4880	system.exe	90

C:\Users\Admin\AppData\Local\Temp\ff70095137235f6ca0adde65cf76d52b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ff70095137235f6ca0adde65cf76d52b_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4916
- C:\Users\Admin\AppData\Roaming\system.exe
  "C:\Users\Admin\AppData\Roaming\system.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4880
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\system.exe" "system.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2320

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\Roaming\system.exe

Filesize
25KB

MD5
ff70095137235f6ca0adde65cf76d52b

SHA1
6d58603b98c1e5ff21a65c8db1d9a76363c37b26

SHA256
91aeac27a8ca345eaa6926aecaf8868888d5b14e1164b54d3c57fec6aedef22e

SHA512
4a526b173eb3b78580962be6c11792b8fc84a2d9fcc5d680b9ab92f5c00c65f0ca307f2c878778194e80b30683c3f738ff5e12e8cab5d6aeeacefc3535f626aa

Download Submit
memory/4880-13-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/4880-14-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/4880-16-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/4916-0-0x0000000074912000-0x0000000074913000-memory.dmp

Filesize
4KB

Download
memory/4916-1-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/4916-2-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download
memory/4916-12-0x0000000074910000-0x0000000074EC1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads