njrat | 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935

General

Target

9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
Size

1.2MB
MD5

89f61f4ce69f8aa2d6b5a71314fe8ee0
SHA1

ac1805406e02bbba5ed1af845633e12d44e431bf
SHA256

9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935
SHA512

f357e39f8af319778af221408c19846be878906d0400a709de4174b2566118207fd551566ba46ad40272cbb49f58336599b214e47c8133f39e64611407bd1dc5
SSDEEP

24576:eAHnh+eWsN3skA4RV1Hom2KXMmHaW7aWvCaFg5a7PCmWX95h:Jh+ZkldoPK8YaW7CaZ7IHh

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
3336	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe

Executes dropped EXE 1 IoCs

pid	Process
4824	data.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0011000000023ca0-14.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1216 set thread context of 3168	1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	89

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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.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
112	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
4824	data.exe
4824	data.exe
4824	data.exe
4824	data.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

description	pid	Process
Token: SeDebugPrivilege	3168	RegAsm.exe
Token: 33	3168	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3168	RegAsm.exe
Token: 33	3168	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3168	RegAsm.exe
Token: 33	3168	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3168	RegAsm.exe
Token: 33	3168	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3168	RegAsm.exe
Token: 33	3168	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3168	RegAsm.exe
Token: 33	3168	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3168	RegAsm.exe
Token: 33	3168	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3168	RegAsm.exe
Token: 33	3168	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3168	RegAsm.exe
Token: 33	3168	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3168	RegAsm.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
4824	data.exe
4824	data.exe
4824	data.exe

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
4824	data.exe
4824	data.exe
4824	data.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1216 wrote to memory of 3168	1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	89
PID 1216 wrote to memory of 3168	1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	89
PID 1216 wrote to memory of 3168	1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	89
PID 1216 wrote to memory of 3168	1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	89
PID 1216 wrote to memory of 3168	1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	89
PID 3168 wrote to memory of 3336	3168	RegAsm.exe	96
PID 3168 wrote to memory of 3336	3168	RegAsm.exe	96
PID 3168 wrote to memory of 3336	3168	RegAsm.exe	96
PID 1216 wrote to memory of 112	1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	105
PID 1216 wrote to memory of 112	1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	105
PID 1216 wrote to memory of 112	1216	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	105

C:\Users\Admin\AppData\Local\Temp\9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
"C:\Users\Admin\AppData\Local\Temp\9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe"
1⤵
- Checks computer location settings
- 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:1216
- 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:3168
- - 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:3336
- 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:112

C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4824

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

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\Roaming\chkdsk\data.exe

Filesize
1.2MB

MD5
cc05424a6aaa3bbabf1e862196d7a633

SHA1
4dff9ba70b8ecca6c9655bbbfdcc2b803fe7a413

SHA256
25196ae829db7e3ed79f18b5f4825af78631279d71c754c02668cb4d34b43bc9

SHA512
d560cb8198139c10c8a4d852cd2900dfa569a8d5f3ce9186aab1715b8fc215c9f9787ef4620144fea69e003d3171ad9252d20babad0c2566890a44a4dd556ce2

Download Submit
memory/1216-0-0x00000000040D0000-0x00000000040D1000-memory.dmp

Filesize
4KB

Download
memory/3168-1-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3168-6-0x0000000073B52000-0x0000000073B53000-memory.dmp

Filesize
4KB

Download
memory/3168-7-0x0000000073B50000-0x0000000074101000-memory.dmp

Filesize
5.7MB

Download
memory/3168-8-0x0000000073B50000-0x0000000074101000-memory.dmp

Filesize
5.7MB

Download
memory/3168-9-0x0000000073B52000-0x0000000073B53000-memory.dmp

Filesize
4KB

Download
memory/3168-10-0x0000000073B50000-0x0000000074101000-memory.dmp

Filesize
5.7MB

Download
memory/3168-11-0x0000000073B50000-0x0000000074101000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads