njrat | b8d9fff131b329d08ac333e0472509a19623c3a01843383e09aaedeedb334334

General

Target

b8d9fff131b329d08ac333e0472509a19623c3a01843383e09aaedeedb334334.exe
Size

111KB
MD5

08e5e8abc78ae9c65e9423f2d212a538
SHA1

3d951951e2f7ded54db416894b68a9db8af7cb19
SHA256

b8d9fff131b329d08ac333e0472509a19623c3a01843383e09aaedeedb334334
SHA512

0630023c3a5ffe868e24e522c98aa1df95b8a9b80d1faf2394157d2b7bf0bbbb040f67838ed52f5a523c7628fd91f07a311321eda6d37449e0c50d3ae96f998a
SSDEEP

3072:HhjMnMkVMjkHOU4c2CYdFOjPkgPWpwkx1lFA:tKPOJc2CuOD3PWBlF

Score

10^/10

njrat hacked evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

booom.no-ip.biz:1177

Mutex

ad8ed9cf4a23a6f00a8fcff639a08b21

Attributes

reg_key
ad8ed9cf4a23a6f00a8fcff639a08b21
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
1072	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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	b8d9fff131b329d08ac333e0472509a19623c3a01843383e09aaedeedb334334.exe

Executes dropped EXE 1 IoCs

pid	Process
404	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\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ad8ed9cf4a23a6f00a8fcff639a08b21 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ad8ed9cf4a23a6f00a8fcff639a08b21 = "\"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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe
Token: 33	404	server.exe
Token: SeIncBasePriorityPrivilege	404	server.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4876 wrote to memory of 404	4876	b8d9fff131b329d08ac333e0472509a19623c3a01843383e09aaedeedb334334.exe	82
PID 4876 wrote to memory of 404	4876	b8d9fff131b329d08ac333e0472509a19623c3a01843383e09aaedeedb334334.exe	82
PID 404 wrote to memory of 1072	404	server.exe	83
PID 404 wrote to memory of 1072	404	server.exe	83

C:\Users\Admin\AppData\Local\Temp\b8d9fff131b329d08ac333e0472509a19623c3a01843383e09aaedeedb334334.exe
"C:\Users\Admin\AppData\Local\Temp\b8d9fff131b329d08ac333e0472509a19623c3a01843383e09aaedeedb334334.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4876
- 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
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:404
- - C:\Windows\SYSTEM32\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
    PID:1072

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
111KB

MD5
08e5e8abc78ae9c65e9423f2d212a538

SHA1
3d951951e2f7ded54db416894b68a9db8af7cb19

SHA256
b8d9fff131b329d08ac333e0472509a19623c3a01843383e09aaedeedb334334

SHA512
0630023c3a5ffe868e24e522c98aa1df95b8a9b80d1faf2394157d2b7bf0bbbb040f67838ed52f5a523c7628fd91f07a311321eda6d37449e0c50d3ae96f998a

Download Submit
memory/404-33-0x00007FFDB5760000-0x00007FFDB6101000-memory.dmp

Filesize
9.6MB

Download
memory/404-32-0x0000000001560000-0x0000000001568000-memory.dmp

Filesize
32KB

Download
memory/404-31-0x000000001D380000-0x000000001D41C000-memory.dmp

Filesize
624KB

Download
memory/404-30-0x00007FFDB5760000-0x00007FFDB6101000-memory.dmp

Filesize
9.6MB

Download
memory/404-28-0x00007FFDB5760000-0x00007FFDB6101000-memory.dmp

Filesize
9.6MB

Download
memory/4876-13-0x000000001C190000-0x000000001C19A000-memory.dmp

Filesize
40KB

Download
memory/4876-8-0x0000000001930000-0x000000000193E000-memory.dmp

Filesize
56KB

Download
memory/4876-11-0x000000001C070000-0x000000001C07C000-memory.dmp

Filesize
48KB

Download
memory/4876-14-0x000000001C1A0000-0x000000001C1AC000-memory.dmp

Filesize
48KB

Download
memory/4876-0-0x00007FFDB5A15000-0x00007FFDB5A16000-memory.dmp

Filesize
4KB

Download
memory/4876-15-0x000000001D3D0000-0x000000001D476000-memory.dmp

Filesize
664KB

Download
memory/4876-12-0x000000001C180000-0x000000001C18C000-memory.dmp

Filesize
48KB

Download
memory/4876-10-0x000000001BF80000-0x000000001BF8C000-memory.dmp

Filesize
48KB

Download
memory/4876-9-0x0000000001950000-0x000000000195E000-memory.dmp

Filesize
56KB

Download
memory/4876-7-0x00000000018A0000-0x00000000018AE000-memory.dmp

Filesize
56KB

Download
memory/4876-6-0x000000001CA30000-0x000000001CEFE000-memory.dmp

Filesize
4.8MB

Download
memory/4876-5-0x000000001C420000-0x000000001C556000-memory.dmp

Filesize
1.2MB

Download
memory/4876-4-0x0000000001890000-0x00000000018A0000-memory.dmp

Filesize
64KB

Download
memory/4876-29-0x00007FFDB5760000-0x00007FFDB6101000-memory.dmp

Filesize
9.6MB

Download
memory/4876-3-0x00007FFDB5760000-0x00007FFDB6101000-memory.dmp

Filesize
9.6MB

Download
memory/4876-2-0x0000000001880000-0x000000000188E000-memory.dmp

Filesize
56KB

Download
memory/4876-1-0x00007FFDB5760000-0x00007FFDB6101000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads