njrat | 206ca05ae854ab2d1615804d91d9a5e53f9a03a4995e09c1a23e26fbaf7b1dba

General

Target

JaffaCakes118_77dfba78123a5466ad8a933f51e0fda0.exe
Size

288KB
MD5

77dfba78123a5466ad8a933f51e0fda0
SHA1

ec0e88aa373dd1ad9a0e5669cb7824c47578b556
SHA256

206ca05ae854ab2d1615804d91d9a5e53f9a03a4995e09c1a23e26fbaf7b1dba
SHA512

cfd4c0f471eb5ffd70c499986f6b8ae4a2ebf1978066d7622cc58c58f313ae9480fec435d6a06f0418e7faa5196ab32b699a55dee015888097846e784f8d7320
SSDEEP

1536:Nq00woZx+IGIo1Rrn07UqbamIdDYBzTmzP1HUhGq:Nq0tPrn0wqbamlKV2

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
4028	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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_77dfba78123a5466ad8a933f51e0fda0.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7996705f82973919e824226316f902bf.exe	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7996705f82973919e824226316f902bf.exe	system.exe

Executes dropped EXE 1 IoCs

pid	Process
736	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7996705f82973919e824226316f902bf = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7996705f82973919e824226316f902bf = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\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	JaffaCakes118_77dfba78123a5466ad8a933f51e0fda0.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	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe
Token: 33	736	system.exe
Token: SeIncBasePriorityPrivilege	736	system.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 736	4816	JaffaCakes118_77dfba78123a5466ad8a933f51e0fda0.exe	84
PID 4816 wrote to memory of 736	4816	JaffaCakes118_77dfba78123a5466ad8a933f51e0fda0.exe	84
PID 4816 wrote to memory of 736	4816	JaffaCakes118_77dfba78123a5466ad8a933f51e0fda0.exe	84
PID 736 wrote to memory of 4028	736	system.exe	90
PID 736 wrote to memory of 4028	736	system.exe	90
PID 736 wrote to memory of 4028	736	system.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77dfba78123a5466ad8a933f51e0fda0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77dfba78123a5466ad8a933f51e0fda0.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Users\Admin\AppData\Local\Temp\system.exe
  "C:\Users\Admin\AppData\Local\Temp\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:736
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:4028

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\system.exe

Filesize
288KB

MD5
77dfba78123a5466ad8a933f51e0fda0

SHA1
ec0e88aa373dd1ad9a0e5669cb7824c47578b556

SHA256
206ca05ae854ab2d1615804d91d9a5e53f9a03a4995e09c1a23e26fbaf7b1dba

SHA512
cfd4c0f471eb5ffd70c499986f6b8ae4a2ebf1978066d7622cc58c58f313ae9480fec435d6a06f0418e7faa5196ab32b699a55dee015888097846e784f8d7320

Download Submit
memory/736-17-0x0000000074FC0000-0x0000000075571000-memory.dmp

Filesize
5.7MB

Download
memory/736-15-0x0000000074FC0000-0x0000000075571000-memory.dmp

Filesize
5.7MB

Download
memory/736-19-0x0000000074FC0000-0x0000000075571000-memory.dmp

Filesize
5.7MB

Download
memory/4816-0-0x0000000074FC2000-0x0000000074FC3000-memory.dmp

Filesize
4KB

Download
memory/4816-1-0x0000000074FC0000-0x0000000075571000-memory.dmp

Filesize
5.7MB

Download
memory/4816-2-0x0000000074FC0000-0x0000000075571000-memory.dmp

Filesize
5.7MB

Download
memory/4816-16-0x0000000074FC0000-0x0000000075571000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads