njrat | fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03

General

Target

fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe
Size

1.2MB
MD5

1d0533150b9b44246d4431607b3871ab
SHA1

73e34d8ab2f51edd471b06c3e2ad17c29701536a
SHA256

fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03
SHA512

a658d2f0768a94c632bb7bb1202584d27ff1bd5db94f8c3cf25f059803c01b3ed49c0ca4db326016a149723034a9bd56531072db2f0203c054d7e28d0ca277da
SSDEEP

24576:eAHnh+eWsN3skA4RV1Hom2KXMmHaW7aWvCaFg5a7PCmWX95u:Jh+ZkldoPK8YaW7CaZ7IHu

Score

10^/10

njrat redlanhopto discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

redlanhopto

C2

redlan.hopto.org:5553

Mutex

d25d360449d7bab3069e1b77b3a914a3

Attributes

reg_key
d25d360449d7bab3069e1b77b3a914a3
splitter
|'|'|

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

pid	Process
2988	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2920	data.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x000900000001755b-14.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2064 set thread context of 800	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	31

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 5 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	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	data.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2760	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe
2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe
2920	data.exe
2920	data.exe

Suspicious use of AdjustPrivilegeToken 21 IoCs

description	pid	Process
Token: SeDebugPrivilege	800	RegAsm.exe
Token: 33	800	RegAsm.exe
Token: SeIncBasePriorityPrivilege	800	RegAsm.exe
Token: 33	800	RegAsm.exe
Token: SeIncBasePriorityPrivilege	800	RegAsm.exe
Token: 33	800	RegAsm.exe
Token: SeIncBasePriorityPrivilege	800	RegAsm.exe
Token: 33	800	RegAsm.exe
Token: SeIncBasePriorityPrivilege	800	RegAsm.exe
Token: 33	800	RegAsm.exe
Token: SeIncBasePriorityPrivilege	800	RegAsm.exe
Token: 33	800	RegAsm.exe
Token: SeIncBasePriorityPrivilege	800	RegAsm.exe
Token: 33	800	RegAsm.exe
Token: SeIncBasePriorityPrivilege	800	RegAsm.exe
Token: 33	800	RegAsm.exe
Token: SeIncBasePriorityPrivilege	800	RegAsm.exe
Token: 33	800	RegAsm.exe
Token: SeIncBasePriorityPrivilege	800	RegAsm.exe
Token: 33	800	RegAsm.exe
Token: SeIncBasePriorityPrivilege	800	RegAsm.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe
2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe
2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe
2920	data.exe
2920	data.exe
2920	data.exe

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe
2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe
2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe
2920	data.exe
2920	data.exe
2920	data.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 800	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	31
PID 2064 wrote to memory of 800	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	31
PID 2064 wrote to memory of 800	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	31
PID 2064 wrote to memory of 800	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	31
PID 2064 wrote to memory of 800	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	31
PID 2064 wrote to memory of 800	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	31
PID 2064 wrote to memory of 800	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	31
PID 2064 wrote to memory of 800	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	31
PID 2064 wrote to memory of 800	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	31
PID 800 wrote to memory of 2988	800	RegAsm.exe	32
PID 800 wrote to memory of 2988	800	RegAsm.exe	32
PID 800 wrote to memory of 2988	800	RegAsm.exe	32
PID 800 wrote to memory of 2988	800	RegAsm.exe	32
PID 2064 wrote to memory of 2760	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	35
PID 2064 wrote to memory of 2760	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	35
PID 2064 wrote to memory of 2760	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	35
PID 2064 wrote to memory of 2760	2064	fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe	35
PID 1140 wrote to memory of 2920	1140	taskeng.exe	38
PID 1140 wrote to memory of 2920	1140	taskeng.exe	38
PID 1140 wrote to memory of 2920	1140	taskeng.exe	38
PID 1140 wrote to memory of 2920	1140	taskeng.exe	38

C:\Users\Admin\AppData\Local\Temp\fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe
"C:\Users\Admin\AppData\Local\Temp\fbfdfa9de3a80cc647a1173b193cbe3e7e2c56088c7e5fda2b75b2561eeebe03.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:800
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2988
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn igfxHK /tr "C:\Users\Admin\AppData\Roaming\chkdsk\data.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2760

C:\Windows\system32\taskeng.exe
taskeng.exe {BEA82E65-6E48-40C9-95E8-CC3EF6304F6B} S-1-5-21-1163522206-1469769407-485553996-1000:PJCSDMRP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1140
- C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
  C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

1

T1562.004

Credential Access

Discovery

System Information Discovery

1

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\Roaming\chkdsk\data.exe

Filesize
1.2MB

MD5
ddd9c8202be80b1158cacb004601fd05

SHA1
bf396f31f9159f569f2df3a8bab943d96c733dfc

SHA256
dc47ff92b623abd116bffad26f6ef5ac72aa7cdf96c93c33e738a66232eaefa0

SHA512
f8fb2259756cc27992c00d550b0120cd3d4344b70ecf272d6f4e8ca826d3d5900a7f2e6ed45537b18fdb2f4c026e86cee884557627f0eb8cc140968be1a07f9a

Download Submit
memory/800-2-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/800-9-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/800-8-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/800-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/800-1-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/800-10-0x0000000073D92000-0x0000000073D94000-memory.dmp

Filesize
8KB

Download
memory/800-11-0x0000000073D92000-0x0000000073D94000-memory.dmp

Filesize
8KB

Download
memory/2064-0-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads