njrat | 1bee518bb41dcf11db3ebd4e4b0c85484da5758e8e3c4d17c63abc1f8855fbcd

General

Target
1bee518bb41dcf11db3ebd4e4b0c85484da5758e8e3c4d17c63abc1f8855fbcd.exe
Size 23KB
Sample240605-bht54aad55
SHA256 1bee518bb41dcf11db3ebd4e4b0c85484da5758e8e3c4d17c63abc1f8855fbcd
MD5 f4f265d3adef9c2bea8dec7c53fb2fdd
SHA1 21fd9d211449edb4c39039c20b9a5063dc0e0d85
SHA512 2b263e3f1a84fda0ea77fb75988d7f6a5aa57fdaf5e76251ff1f5408f6e199f4cbfcc2232bec6bb9774b1abc45171c998d985054c75d1cf6d7a86ff0a1d617bf
SSDEEP 384:UzerxMCQmreJsg/5ZuSppqwpng6tgL29LCBPZVmRvR6JZlbw8hqIusZzZlZy:/xq71jBLbRpcnuiy
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
3348	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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	1bee518bb41dcf11db3ebd4e4b0c85484da5758e8e3c4d17c63abc1f8855fbcd.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6860b5a0f36cf90fa5634655f6f48db7.exe	System.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6860b5a0f36cf90fa5634655f6f48db7.exe	System.exe

Executes dropped EXE 1 IoCs

pid	Process
1720	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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6860b5a0f36cf90fa5634655f6f48db7 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System.exe\" .."	System.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\6860b5a0f36cf90fa5634655f6f48db7 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System.exe\" .."	System.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	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe
Token: 33	1720	System.exe
Token: SeIncBasePriorityPrivilege	1720	System.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 1720	4888	1bee518bb41dcf11db3ebd4e4b0c85484da5758e8e3c4d17c63abc1f8855fbcd.exe	93
PID 4888 wrote to memory of 1720	4888	1bee518bb41dcf11db3ebd4e4b0c85484da5758e8e3c4d17c63abc1f8855fbcd.exe	93
PID 4888 wrote to memory of 1720	4888	1bee518bb41dcf11db3ebd4e4b0c85484da5758e8e3c4d17c63abc1f8855fbcd.exe	93
PID 1720 wrote to memory of 3348	1720	System.exe	97
PID 1720 wrote to memory of 3348	1720	System.exe	97
PID 1720 wrote to memory of 3348	1720	System.exe	97

C:\Users\Admin\AppData\Local\Temp\1bee518bb41dcf11db3ebd4e4b0c85484da5758e8e3c4d17c63abc1f8855fbcd.exe
"C:\Users\Admin\AppData\Local\Temp\1bee518bb41dcf11db3ebd4e4b0c85484da5758e8e3c4d17c63abc1f8855fbcd.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Users\Admin\AppData\Roaming\System.exe
  "C:\Users\Admin\AppData\Roaming\System.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1720
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\System.exe" "System.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:3348

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

Replay Monitor

Loading Replay Monitor...

Downloads

System.exe

Path C:\Users\Admin\AppData\Roaming\System.exe
Size 23KB
SHA256 1bee518bb41dcf11db3ebd4e4b0c85484da5758e8e3c4d17c63abc1f8855fbcd
MD5 f4f265d3adef9c2bea8dec7c53fb2fdd
SHA1 21fd9d211449edb4c39039c20b9a5063dc0e0d85
SHA512 2b263e3f1a84fda0ea77fb75988d7f6a5aa57fdaf5e76251ff1f5408f6e199f4cbfcc2232bec6bb9774b1abc45171c998d985054c75d1cf6d7a86ff0a1d617bf
SSDEEP 384:UzerxMCQmreJsg/5ZuSppqwpng6tgL29LCBPZVmRvR6JZlbw8hqIusZzZlZy:/xq71jBLbRpcnuiy
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1720-12-0x00000000753E0000-0x0000000075991000-memory.dmp

Download

memory/1720-14-0x00000000753E0000-0x0000000075991000-memory.dmp

Download

memory/1720-16-0x00000000753E0000-0x0000000075991000-memory.dmp

Download

memory/4888-0-0x00000000753E2000-0x00000000753E3000-memory.dmp

Download

memory/4888-1-0x00000000753E0000-0x0000000075991000-memory.dmp

Download

memory/4888-2-0x00000000753E0000-0x0000000075991000-memory.dmp

Download

memory/4888-13-0x00000000753E0000-0x0000000075991000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads