njrat | bd4385c18ee587c229bd5c250ff74359536706964c98f987ff7059ad7b4bd58e

General

Target

bd4385c18ee587c229bd5c250ff74359536706964c98f987ff7059ad7b4bd58eN.exe
Size

23KB
MD5

9daa216644e4f0c4b6f890218128aeb0
SHA1

c1cae19312598b6449cfb2f682b3437e53f33a46
SHA256

bd4385c18ee587c229bd5c250ff74359536706964c98f987ff7059ad7b4bd58e
SHA512

0f12a8aa090d5676f6b8033075453181fa95f299432e0e05b759406cdeb101aa47604aaf6a513641576f9abbabf62b009cf5190e3ff9f4e3a07f61d8e8ea7409
SSDEEP

384:UoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIy:D7O89p2rRpcnuA

Score

10^/10

njrat discovery evasion persistence privilege_escalation 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
4468	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	bd4385c18ee587c229bd5c250ff74359536706964c98f987ff7059ad7b4bd58eN.exe

Executes dropped EXE 1 IoCs

pid	Process
3896	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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"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

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	bd4385c18ee587c229bd5c250ff74359536706964c98f987ff7059ad7b4bd58eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	3896	server.exe
Token: 33	3896	server.exe
Token: SeIncBasePriorityPrivilege	3896	server.exe
Token: 33	3896	server.exe
Token: SeIncBasePriorityPrivilege	3896	server.exe
Token: 33	3896	server.exe
Token: SeIncBasePriorityPrivilege	3896	server.exe
Token: 33	3896	server.exe
Token: SeIncBasePriorityPrivilege	3896	server.exe
Token: 33	3896	server.exe
Token: SeIncBasePriorityPrivilege	3896	server.exe
Token: 33	3896	server.exe
Token: SeIncBasePriorityPrivilege	3896	server.exe
Token: 33	3896	server.exe
Token: SeIncBasePriorityPrivilege	3896	server.exe
Token: 33	3896	server.exe
Token: SeIncBasePriorityPrivilege	3896	server.exe
Token: 33	3896	server.exe
Token: SeIncBasePriorityPrivilege	3896	server.exe
Token: 33	3896	server.exe
Token: SeIncBasePriorityPrivilege	3896	server.exe
Token: 33	3896	server.exe
Token: SeIncBasePriorityPrivilege	3896	server.exe
Token: 33	3896	server.exe
Token: SeIncBasePriorityPrivilege	3896	server.exe
Token: 33	3896	server.exe
Token: SeIncBasePriorityPrivilege	3896	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4552 wrote to memory of 3896	4552	bd4385c18ee587c229bd5c250ff74359536706964c98f987ff7059ad7b4bd58eN.exe	92
PID 4552 wrote to memory of 3896	4552	bd4385c18ee587c229bd5c250ff74359536706964c98f987ff7059ad7b4bd58eN.exe	92
PID 4552 wrote to memory of 3896	4552	bd4385c18ee587c229bd5c250ff74359536706964c98f987ff7059ad7b4bd58eN.exe	92
PID 3896 wrote to memory of 4468	3896	server.exe	95
PID 3896 wrote to memory of 4468	3896	server.exe	95
PID 3896 wrote to memory of 4468	3896	server.exe	95

C:\Users\Admin\AppData\Local\Temp\bd4385c18ee587c229bd5c250ff74359536706964c98f987ff7059ad7b4bd58eN.exe
"C:\Users\Admin\AppData\Local\Temp\bd4385c18ee587c229bd5c250ff74359536706964c98f987ff7059ad7b4bd58eN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4552
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3896
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:4468

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\server.exe

Filesize
23KB

MD5
9daa216644e4f0c4b6f890218128aeb0

SHA1
c1cae19312598b6449cfb2f682b3437e53f33a46

SHA256
bd4385c18ee587c229bd5c250ff74359536706964c98f987ff7059ad7b4bd58e

SHA512
0f12a8aa090d5676f6b8033075453181fa95f299432e0e05b759406cdeb101aa47604aaf6a513641576f9abbabf62b009cf5190e3ff9f4e3a07f61d8e8ea7409

Download Submit
memory/3896-13-0x0000000074CF0000-0x00000000752A1000-memory.dmp

Filesize
5.7MB

Download
memory/3896-15-0x0000000074CF0000-0x00000000752A1000-memory.dmp

Filesize
5.7MB

Download
memory/3896-14-0x0000000074CF0000-0x00000000752A1000-memory.dmp

Filesize
5.7MB

Download
memory/3896-16-0x0000000074CF0000-0x00000000752A1000-memory.dmp

Filesize
5.7MB

Download
memory/4552-0-0x0000000074CF2000-0x0000000074CF3000-memory.dmp

Filesize
4KB

Download
memory/4552-1-0x0000000074CF0000-0x00000000752A1000-memory.dmp

Filesize
5.7MB

Download
memory/4552-2-0x0000000074CF0000-0x00000000752A1000-memory.dmp

Filesize
5.7MB

Download
memory/4552-12-0x0000000074CF0000-0x00000000752A1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads