njrat | b31e0e70f51bf59853e9b443f54320245a8b142ed01f5b323567e4ff75597dc8

General

Target

a3c7eabd9cfb545adb2731670d97fe9ec7d8afe29db7f7a31827bdc13e0e4a85.exe
Size

42KB
MD5

25a9a70e860bdd43873f8423b2573785
SHA1

0eea71569c308368f8f424ef48b67da8a352a7ba
SHA256

a3c7eabd9cfb545adb2731670d97fe9ec7d8afe29db7f7a31827bdc13e0e4a85
SHA512

cc8228c6c78db64286132c90cac8148eee2a4c534bb50cf89e02a1909f8ef389dc5c196f739225d221593a2407dc28889074411939f337cdf27e9763e13cd3db
SSDEEP

768:zb6BvdySY94ns6gWLr+naiEeOnhpP7MnpVICSGLRUaN4FOdTCcUgKw:zb6BFU94rGLohpPQnLILGLR74uCcUgK

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

824 netsh.exe

pid	process
824	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:

a3c7eabd9cfb545adb2731670d97fe9ec7d8afe29db7f7a31827bdc13e0e4a85.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	a3c7eabd9cfb545adb2731670d97fe9ec7d8afe29db7f7a31827bdc13e0e4a85.exe

Drops startup file 2 IoCs

Processes:

msgedge.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5068c4162623ac26e655305f35864a96.exe	msgedge.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5068c4162623ac26e655305f35864a96.exe	msgedge.exe

Executes dropped EXE 1 IoCs

Processes:

msgedge.exe

pid process

4928 msgedge.exe

pid	process
4928	msgedge.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

msgedge.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5068c4162623ac26e655305f35864a96 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\msgedge.exe\" .."	msgedge.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\5068c4162623ac26e655305f35864a96 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\msgedge.exe\" .."	msgedge.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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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:

a3c7eabd9cfb545adb2731670d97fe9ec7d8afe29db7f7a31827bdc13e0e4a85.exemsgedge.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a3c7eabd9cfb545adb2731670d97fe9ec7d8afe29db7f7a31827bdc13e0e4a85.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msgedge.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

Processes:

msgedge.exe

description	pid	process
Token: SeDebugPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe
Token: 33	4928	msgedge.exe
Token: SeIncBasePriorityPrivilege	4928	msgedge.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a3c7eabd9cfb545adb2731670d97fe9ec7d8afe29db7f7a31827bdc13e0e4a85.exemsgedge.exe

description	pid	process	target process
PID 3932 wrote to memory of 4928	3932	a3c7eabd9cfb545adb2731670d97fe9ec7d8afe29db7f7a31827bdc13e0e4a85.exe	msgedge.exe
PID 3932 wrote to memory of 4928	3932	a3c7eabd9cfb545adb2731670d97fe9ec7d8afe29db7f7a31827bdc13e0e4a85.exe	msgedge.exe
PID 3932 wrote to memory of 4928	3932	a3c7eabd9cfb545adb2731670d97fe9ec7d8afe29db7f7a31827bdc13e0e4a85.exe	msgedge.exe
PID 4928 wrote to memory of 824	4928	msgedge.exe	netsh.exe
PID 4928 wrote to memory of 824	4928	msgedge.exe	netsh.exe
PID 4928 wrote to memory of 824	4928	msgedge.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\a3c7eabd9cfb545adb2731670d97fe9ec7d8afe29db7f7a31827bdc13e0e4a85.exe
"C:\Users\Admin\AppData\Local\Temp\a3c7eabd9cfb545adb2731670d97fe9ec7d8afe29db7f7a31827bdc13e0e4a85.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Users\Admin\AppData\Local\Temp\msgedge.exe
  "C:\Users\Admin\AppData\Local\Temp\msgedge.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4928
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\msgedge.exe" "msgedge.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:824

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\msgedge.exe

Filesize
42KB

MD5
25a9a70e860bdd43873f8423b2573785

SHA1
0eea71569c308368f8f424ef48b67da8a352a7ba

SHA256
a3c7eabd9cfb545adb2731670d97fe9ec7d8afe29db7f7a31827bdc13e0e4a85

SHA512
cc8228c6c78db64286132c90cac8148eee2a4c534bb50cf89e02a1909f8ef389dc5c196f739225d221593a2407dc28889074411939f337cdf27e9763e13cd3db

Download Submit
memory/3932-0-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

Filesize
4KB

Download
memory/3932-1-0x0000000000EC0000-0x0000000000ED0000-memory.dmp

Filesize
64KB

Download
memory/3932-2-0x00000000030C0000-0x00000000030D6000-memory.dmp

Filesize
88KB

Download
memory/3932-3-0x0000000007C60000-0x0000000007CFC000-memory.dmp

Filesize
624KB

Download
memory/3932-4-0x00000000082B0000-0x0000000008854000-memory.dmp

Filesize
5.6MB

Download
memory/3932-5-0x0000000005720000-0x0000000005726000-memory.dmp

Filesize
24KB

Download
memory/3932-17-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

Filesize
4KB

Download
memory/4928-16-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/4928-15-0x00000000028D0000-0x00000000028E6000-memory.dmp

Filesize
88KB

Download
memory/4928-19-0x0000000005210000-0x00000000052A2000-memory.dmp

Filesize
584KB

Download
memory/4928-20-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/4928-21-0x00000000051D0000-0x00000000051DA000-memory.dmp

Filesize
40KB

Download
memory/4928-22-0x0000000005430000-0x0000000005496000-memory.dmp

Filesize
408KB

Download
memory/4928-23-0x0000000005D80000-0x0000000005D98000-memory.dmp

Filesize
96KB

Download
memory/4928-24-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download
memory/4928-25-0x0000000074D00000-0x00000000754B0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads