njrat | cd55badf449d1d701c631d75846ac6928c285397223da050912190aa6d642619

General

Target
2735603595461beb3a3aad862b5f29dd_JaffaCakes118.exe
Size 23KB
Sample240508-3fjp5ade3v
SHA256 cd55badf449d1d701c631d75846ac6928c285397223da050912190aa6d642619
MD5 2735603595461beb3a3aad862b5f29dd
SHA1 16732384fed57d8833bbff49bf82a79e6d69a820
SHA512 d4c3b45f15391398b377b6051ae2916c2a84018e1c08d7ff5bccc94bec828db8c690d5789cf06883e9a81d8db6c9c79466c609f684b5500f76710ea7ac837aba
SSDEEP 384:ozc6ze6e1PAhJVzC3tC1im/BsTx465gZ0rap9HBmRvR6JZlbw8hqIusZzZPO:o5e9EJLN/ERpcnuZ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat evasion persistence 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
1304	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-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	2735603595461beb3a3aad862b5f29dd_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b025b1b10bc4e43a3ce4c8c9561b9557.exe	Trojan.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b025b1b10bc4e43a3ce4c8c9561b9557.exe	Trojan.exe

Executes dropped EXE 1 IoCs

pid	Process
2316	Trojan.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-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b025b1b10bc4e43a3ce4c8c9561b9557 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Trojan.exe\" .."	Trojan.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\b025b1b10bc4e43a3ce4c8c9561b9557 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Trojan.exe\" .."	Trojan.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe
Token: 33	2316	Trojan.exe
Token: SeIncBasePriorityPrivilege	2316	Trojan.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 2316	4884	2735603595461beb3a3aad862b5f29dd_JaffaCakes118.exe	89
PID 4884 wrote to memory of 2316	4884	2735603595461beb3a3aad862b5f29dd_JaffaCakes118.exe	89
PID 4884 wrote to memory of 2316	4884	2735603595461beb3a3aad862b5f29dd_JaffaCakes118.exe	89
PID 2316 wrote to memory of 1304	2316	Trojan.exe	92
PID 2316 wrote to memory of 1304	2316	Trojan.exe	92
PID 2316 wrote to memory of 1304	2316	Trojan.exe	92

C:\Users\Admin\AppData\Local\Temp\2735603595461beb3a3aad862b5f29dd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2735603595461beb3a3aad862b5f29dd_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Users\Admin\AppData\Roaming\Trojan.exe
  "C:\Users\Admin\AppData\Roaming\Trojan.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2316
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Trojan.exe" "Trojan.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1304

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

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

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Trojan.exe

Path C:\Users\Admin\AppData\Roaming\Trojan.exe
Size 23KB
SHA256 cd55badf449d1d701c631d75846ac6928c285397223da050912190aa6d642619
MD5 2735603595461beb3a3aad862b5f29dd
SHA1 16732384fed57d8833bbff49bf82a79e6d69a820
SHA512 d4c3b45f15391398b377b6051ae2916c2a84018e1c08d7ff5bccc94bec828db8c690d5789cf06883e9a81d8db6c9c79466c609f684b5500f76710ea7ac837aba
SSDEEP 384:ozc6ze6e1PAhJVzC3tC1im/BsTx465gZ0rap9HBmRvR6JZlbw8hqIusZzZPO:o5e9EJLN/ERpcnuZ
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2316-13-0x0000000074A90000-0x0000000075041000-memory.dmp

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memory/2316-14-0x0000000074A90000-0x0000000075041000-memory.dmp

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memory/2316-16-0x0000000074A90000-0x0000000075041000-memory.dmp

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memory/4884-0-0x0000000074A92000-0x0000000074A93000-memory.dmp

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memory/4884-1-0x0000000074A90000-0x0000000075041000-memory.dmp

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memory/4884-2-0x0000000074A90000-0x0000000075041000-memory.dmp

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memory/4884-12-0x0000000074A90000-0x0000000075041000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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