njrat | 0c6b8ea1283b7357cfef654f2a8c2fa5d601f3f46b41cc7ada7f11f4cee2cd99

General

Target

JaffaCakes118_6ee288c4a829c27e75cf09b40d7aefc0.exe
Size

235KB
MD5

6ee288c4a829c27e75cf09b40d7aefc0
SHA1

7fb6fda4c02140f227f05f56dd945cbaa36a1f07
SHA256

0c6b8ea1283b7357cfef654f2a8c2fa5d601f3f46b41cc7ada7f11f4cee2cd99
SHA512

369d5b240f49fa79f940af9f987d7087a2bd363144292ed37bb6b5c4c612f98c4fe6e317f2e561d3565b35eb53196cca95718c07da70594bafe1286fdcd3480c
SSDEEP

6144:hBLL/nAL2GhNchlnvV9dxLo6RDtNaYCdS:7L+2iNEv/dC6RDtNal8

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
1716	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6ee288c4a829c27e75cf09b40d7aefc0.exe

Deletes itself 1 IoCs

pid	Process
432	System.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe	JaffaCakes118_6ee288c4a829c27e75cf09b40d7aefc0.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe	JaffaCakes118_6ee288c4a829c27e75cf09b40d7aefc0.exe

Executes dropped EXE 1 IoCs

pid	Process
432	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 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6ee288c4a829c27e75cf09b40d7aefc0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	432	System.exe
Token: 33	432	System.exe
Token: SeIncBasePriorityPrivilege	432	System.exe
Token: 33	432	System.exe
Token: SeIncBasePriorityPrivilege	432	System.exe
Token: 33	432	System.exe
Token: SeIncBasePriorityPrivilege	432	System.exe
Token: 33	432	System.exe
Token: SeIncBasePriorityPrivilege	432	System.exe
Token: 33	432	System.exe
Token: SeIncBasePriorityPrivilege	432	System.exe
Token: 33	432	System.exe
Token: SeIncBasePriorityPrivilege	432	System.exe
Token: 33	432	System.exe
Token: SeIncBasePriorityPrivilege	432	System.exe
Token: 33	432	System.exe
Token: SeIncBasePriorityPrivilege	432	System.exe
Token: 33	432	System.exe
Token: SeIncBasePriorityPrivilege	432	System.exe
Token: 33	432	System.exe
Token: SeIncBasePriorityPrivilege	432	System.exe
Token: 33	432	System.exe
Token: SeIncBasePriorityPrivilege	432	System.exe
Token: 33	432	System.exe
Token: SeIncBasePriorityPrivilege	432	System.exe
Token: 33	432	System.exe
Token: SeIncBasePriorityPrivilege	432	System.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3240	JaffaCakes118_6ee288c4a829c27e75cf09b40d7aefc0.exe
3240	JaffaCakes118_6ee288c4a829c27e75cf09b40d7aefc0.exe
432	System.exe
432	System.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3240 wrote to memory of 432	3240	JaffaCakes118_6ee288c4a829c27e75cf09b40d7aefc0.exe	85
PID 3240 wrote to memory of 432	3240	JaffaCakes118_6ee288c4a829c27e75cf09b40d7aefc0.exe	85
PID 3240 wrote to memory of 432	3240	JaffaCakes118_6ee288c4a829c27e75cf09b40d7aefc0.exe	85
PID 432 wrote to memory of 1716	432	System.exe	103
PID 432 wrote to memory of 1716	432	System.exe	103
PID 432 wrote to memory of 1716	432	System.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee288c4a829c27e75cf09b40d7aefc0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee288c4a829c27e75cf09b40d7aefc0.exe"
1⤵
- Checks computer location settings
- Drops startup file
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3240
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:432
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe" "System.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

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

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

1

T1562.004

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\melt.txt

Filesize
84B

MD5
db3249df86d23ae549de95c34e35a3ee

SHA1
48adc927778d71b5ff5c3575ca9c4a7a44fcdeb1

SHA256
287398d0bc5ecd5d5a1a3950b6915e9a88e7e68005c1415352299efad4feb632

SHA512
e9bd5a55ccfd4905f3f3ccb33a16c1936ccd15f5c7c6659e622c03571852d763395efc8cf2828eff5e4a4f4565c785888d1e85376ab35d7d92d65e69190108f2

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe

Filesize
235KB

MD5
6ee288c4a829c27e75cf09b40d7aefc0

SHA1
7fb6fda4c02140f227f05f56dd945cbaa36a1f07

SHA256
0c6b8ea1283b7357cfef654f2a8c2fa5d601f3f46b41cc7ada7f11f4cee2cd99

SHA512
369d5b240f49fa79f940af9f987d7087a2bd363144292ed37bb6b5c4c612f98c4fe6e317f2e561d3565b35eb53196cca95718c07da70594bafe1286fdcd3480c

Download Submit
memory/432-30-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/432-27-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/432-24-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/432-25-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/432-34-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/432-33-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/432-31-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/432-28-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/432-26-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/432-23-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/432-35-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/432-29-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-4-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-22-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-3-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-2-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-0-0x0000000074B12000-0x0000000074B13000-memory.dmp

Filesize
4KB

Download
memory/3240-8-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-1-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-7-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-6-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/3240-5-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads