njrat | f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb

General

Target

f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb.exe
Size

296KB
MD5

866251c29ce220808c68710838c4ed0e
SHA1

c052f42097c404484219c2a8a7830d1c8d566161
SHA256

f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb
SHA512

befdad5d56f9f6f7de102df5e8be857b183142611a5419f8fbf00861e5faf3fbcb68aed03dc556c3255919dc5c200080144c6b51229c4c116e555f5f37f971cf
SSDEEP

768:+h6X/EWNG6+DG9PG1INeBU09m4ukw6nbi/bUibwp4JDeDYISywilKFtf5vLAY1RS:+hoEWHNeBU09kHsi/X7N6aRMj

Score

10^/10

njrat scammer discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

scammer

C2

oxy01.linkpc.net:1177

Mutex

08f4dc96bbb7af09d1a37fe35c75a42f

Attributes

reg_key
08f4dc96bbb7af09d1a37fe35c75a42f
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

Processes:

netsh.exe

pid process

4732 netsh.exe

pid	process
4732	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:

f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb.exe

Executes dropped EXE 1 IoCs

Processes:

explorer.exe

pid process

3176 explorer.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:

f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb.exeexplorer.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

Processes:

explorer.exe

pid	process
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe
3176	explorer.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

explorer.exe

description pid process

Token: SeDebugPrivilege 3176 explorer.exe

description	pid	process
Token: SeDebugPrivilege	3176	explorer.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb.exeexplorer.exe

description	pid	process	target process
PID 3656 wrote to memory of 3176	3656	f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb.exe	explorer.exe
PID 3656 wrote to memory of 3176	3656	f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb.exe	explorer.exe
PID 3656 wrote to memory of 3176	3656	f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb.exe	explorer.exe
PID 3176 wrote to memory of 4732	3176	explorer.exe	netsh.exe
PID 3176 wrote to memory of 4732	3176	explorer.exe	netsh.exe
PID 3176 wrote to memory of 4732	3176	explorer.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb.exe
"C:\Users\Admin\AppData\Local\Temp\f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3656
- C:\Users\Admin\AppData\Local\Temp\explorer.exe
  "C:\Users\Admin\AppData\Local\Temp\explorer.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3176
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\explorer.exe" "explorer.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:4732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

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

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

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\Local\Temp\explorer.exe

Filesize
296KB

MD5
866251c29ce220808c68710838c4ed0e

SHA1
c052f42097c404484219c2a8a7830d1c8d566161

SHA256
f655b29acc122c22ffd6dae267587ee9f14d4a639a3923f10fbc122ce51b97eb

SHA512
befdad5d56f9f6f7de102df5e8be857b183142611a5419f8fbf00861e5faf3fbcb68aed03dc556c3255919dc5c200080144c6b51229c4c116e555f5f37f971cf

Download Submit
memory/3176-25-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/3176-24-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/3176-23-0x0000000005190000-0x000000000519A000-memory.dmp

Filesize
40KB

Download
memory/3176-22-0x00000000051D0000-0x0000000005262000-memory.dmp

Filesize
584KB

Download
memory/3176-21-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/3176-20-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/3656-3-0x0000000005290000-0x00000000052B0000-memory.dmp

Filesize
128KB

Download
memory/3656-19-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/3656-6-0x0000000005A90000-0x0000000006034000-memory.dmp

Filesize
5.6MB

Download
memory/3656-5-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/3656-4-0x00000000052D0000-0x00000000052DE000-memory.dmp

Filesize
56KB

Download
memory/3656-0-0x000000007455E000-0x000000007455F000-memory.dmp

Filesize
4KB

Download
memory/3656-2-0x0000000005300000-0x000000000539C000-memory.dmp

Filesize
624KB

Download
memory/3656-1-0x00000000008F0000-0x0000000000940000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads