njrat | f77ca04e76cd8ba8993380854f00ec0c577acec3e9af43ef84359e117b95a9b5

General

Target

JaffaCakes118_68355cc0f110c2bc9ec7e0a10fcf6e00.exe
Size

23KB
MD5

68355cc0f110c2bc9ec7e0a10fcf6e00
SHA1

79cd92523fb48060b1a26285fa1f1b0627c43036
SHA256

f77ca04e76cd8ba8993380854f00ec0c577acec3e9af43ef84359e117b95a9b5
SHA512

651ec0861f3b56594cacace7591393fcd676a96bbde36617cd445bf22b802ae941aa1e1c13819a9435d5f6f8c028e3d531ac1064ddcef1b71f686ead47b5c1ba
SSDEEP

384:5TTSLV/+D2sic6qfw38JeiWawJ3fw6FgzeAhEcRtmRvR6JZlbw8hqIusZzZMy:Q9GJic6qd1WEIRpcnuo

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
1688	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_68355cc0f110c2bc9ec7e0a10fcf6e00.exe

Executes dropped EXE 1 IoCs

pid	Process
4832	skype.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	JaffaCakes118_68355cc0f110c2bc9ec7e0a10fcf6e00.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skype.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe
Token: 33	4832	skype.exe
Token: SeIncBasePriorityPrivilege	4832	skype.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 4832	4512	JaffaCakes118_68355cc0f110c2bc9ec7e0a10fcf6e00.exe	84
PID 4512 wrote to memory of 4832	4512	JaffaCakes118_68355cc0f110c2bc9ec7e0a10fcf6e00.exe	84
PID 4512 wrote to memory of 4832	4512	JaffaCakes118_68355cc0f110c2bc9ec7e0a10fcf6e00.exe	84
PID 4832 wrote to memory of 1688	4832	skype.exe	85
PID 4832 wrote to memory of 1688	4832	skype.exe	85
PID 4832 wrote to memory of 1688	4832	skype.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68355cc0f110c2bc9ec7e0a10fcf6e00.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68355cc0f110c2bc9ec7e0a10fcf6e00.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4512
- C:\Users\Admin\AppData\Roaming\skype.exe
  "C:\Users\Admin\AppData\Roaming\skype.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4832
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\skype.exe" "skype.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1688

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\Roaming\skype.exe

Filesize
23KB

MD5
68355cc0f110c2bc9ec7e0a10fcf6e00

SHA1
79cd92523fb48060b1a26285fa1f1b0627c43036

SHA256
f77ca04e76cd8ba8993380854f00ec0c577acec3e9af43ef84359e117b95a9b5

SHA512
651ec0861f3b56594cacace7591393fcd676a96bbde36617cd445bf22b802ae941aa1e1c13819a9435d5f6f8c028e3d531ac1064ddcef1b71f686ead47b5c1ba

Download Submit
memory/4512-0-0x00000000748C2000-0x00000000748C3000-memory.dmp

Filesize
4KB

Download
memory/4512-1-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/4512-2-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/4512-13-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/4832-12-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/4832-14-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/4832-15-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads