njrat | d3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e

General

Target

d3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e.exe
Size

23KB
MD5

5fc97f4e662c95d521e576872990ae2b
SHA1

88fe5b8f0ee16a272f2f6b9593ca20d813e5ca89
SHA256

d3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e
SHA512

128db76db5f33563f917cdc15b44c5991faec03564a877a9a748444f52bb48fb7c9f08480d5fbfcefe0e0a9f8db3c1d36e10ef2a0b4c034a976485898a530075
SSDEEP

384:MoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI2:77O89p2rRpcnuA

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

Processes:

netsh.exe

pid process

4324 netsh.exe

pid	process
4324	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

Processes:

d3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	d3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e.exe

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

2256 server.exe

pid	process
2256	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\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

Processes:

netsh.exe

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

Processes:

netsh.exed3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e.exeserver.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe
Token: 33	2256	server.exe
Token: SeIncBasePriorityPrivilege	2256	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e.exeserver.exe

description	pid	process	target process
PID 1868 wrote to memory of 2256	1868	d3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e.exe	server.exe
PID 1868 wrote to memory of 2256	1868	d3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e.exe	server.exe
PID 1868 wrote to memory of 2256	1868	d3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e.exe	server.exe
PID 2256 wrote to memory of 4324	2256	server.exe	netsh.exe
PID 2256 wrote to memory of 4324	2256	server.exe	netsh.exe
PID 2256 wrote to memory of 4324	2256	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\d3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e.exe
"C:\Users\Admin\AppData\Local\Temp\d3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1868
- 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:2256
- - 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:4324

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
5fc97f4e662c95d521e576872990ae2b

SHA1
88fe5b8f0ee16a272f2f6b9593ca20d813e5ca89

SHA256
d3bcacc33faa92fb3005ca90c4eb3632ba77815b3c1fc5646425cba23cec905e

SHA512
128db76db5f33563f917cdc15b44c5991faec03564a877a9a748444f52bb48fb7c9f08480d5fbfcefe0e0a9f8db3c1d36e10ef2a0b4c034a976485898a530075

Download Submit
memory/1868-0-0x0000000075392000-0x0000000075393000-memory.dmp

Filesize
4KB

Download
memory/1868-1-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/1868-2-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/1868-12-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/2256-13-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/2256-14-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/2256-15-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/2256-16-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/2256-17-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads