njrat | 460fb7232f1dda47da898fb997c6fdcd395a78b3125081594fc8ba191069330a

General

Target
b33b77db7af483e856c92a3359cf68e8_JaffaCakes118.exe
Size 51KB
Sample240616-ndxfwa1elf
SHA256 460fb7232f1dda47da898fb997c6fdcd395a78b3125081594fc8ba191069330a
MD5 b33b77db7af483e856c92a3359cf68e8
SHA1 98e47a7962df77d8909640c801a0d7795ea3e929
SHA512 59e7636dcf4ce51952ad0294fd9eae160da62fc93ee063cda5b59122655b3eae3955b73767fec20bf091a66b2236ef2ca843acd04c75ced9982804cf368590c6
SSDEEP 768:R+82p9M5i1Yfeulgq7eEs2i3lkoa7Ujc4aU1C3gPVsg47Lo6fB8:R+823R1YBgqXkcO+wY8
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
4992	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-1-5-21-2080292272-204036150-2159171770-1000\Control Panel\International\Geo\Nation	b33b77db7af483e856c92a3359cf68e8_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1804	server.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-1-5-21-2080292272-204036150-2159171770-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\a261eb25275a83af3ee1207ac774ee89 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\a261eb25275a83af3ee1207ac774ee89 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.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	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe
Token: 33	1804	server.exe
Token: SeIncBasePriorityPrivilege	1804	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4828 wrote to memory of 1804	4828	b33b77db7af483e856c92a3359cf68e8_JaffaCakes118.exe	88
PID 4828 wrote to memory of 1804	4828	b33b77db7af483e856c92a3359cf68e8_JaffaCakes118.exe	88
PID 4828 wrote to memory of 1804	4828	b33b77db7af483e856c92a3359cf68e8_JaffaCakes118.exe	88
PID 1804 wrote to memory of 4992	1804	server.exe	89
PID 1804 wrote to memory of 4992	1804	server.exe	89
PID 1804 wrote to memory of 4992	1804	server.exe	89

C:\Users\Admin\AppData\Local\Temp\b33b77db7af483e856c92a3359cf68e8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b33b77db7af483e856c92a3359cf68e8_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4828
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1804
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4992

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

server.exe

Path C:\Users\Admin\AppData\Local\Temp\server.exe
Size 51KB
SHA256 460fb7232f1dda47da898fb997c6fdcd395a78b3125081594fc8ba191069330a
MD5 b33b77db7af483e856c92a3359cf68e8
SHA1 98e47a7962df77d8909640c801a0d7795ea3e929
SHA512 59e7636dcf4ce51952ad0294fd9eae160da62fc93ee063cda5b59122655b3eae3955b73767fec20bf091a66b2236ef2ca843acd04c75ced9982804cf368590c6
SSDEEP 768:R+82p9M5i1Yfeulgq7eEs2i3lkoa7Ujc4aU1C3gPVsg47Lo6fB8:R+823R1YBgqXkcO+wY8
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1804-12-0x0000000075290000-0x0000000075841000-memory.dmp

Download

memory/1804-14-0x0000000075290000-0x0000000075841000-memory.dmp

Download

memory/1804-15-0x0000000075290000-0x0000000075841000-memory.dmp

Download

memory/4828-0-0x0000000075292000-0x0000000075293000-memory.dmp

Download

memory/4828-1-0x0000000075290000-0x0000000075841000-memory.dmp

Download

memory/4828-2-0x0000000075290000-0x0000000075841000-memory.dmp

Download

memory/4828-13-0x0000000075290000-0x0000000075841000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads