njrat | 3933f1e8608aa3b1fd14fbae2a92a2270c57ea643214c5595a467d18cb40cd3a

General

Target

3933f1e8608aa3b1fd14fbae2a92a2270c57ea643214c5595a467d18cb40cd3aN.exe
Size

80KB
MD5

41c5fbab311f1f91acf6d663a92a38a0
SHA1

3c0faf99d61fa5b5635562c249ff14642d287da7
SHA256

3933f1e8608aa3b1fd14fbae2a92a2270c57ea643214c5595a467d18cb40cd3a
SHA512

69e19c245aeb05fa78ae5ef701dbb9b0c99769e3c096348fd1d1b4c0bd2ead0bdc52d7bdce83e67e5d5f1adec48089890252d6249e9378848b1e06eb6849d85e
SSDEEP

1536:eV0OMHYAwoDfsP0cTVrWDGu4eeGWQX17S38Mdb:c0OiDorOp4ee+Ml

Score

10^/10

njrat hacked evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

skandar001007.ddns.net:1101

Mutex

5c41cf8b7fd17bab9bf957c2625a7998

Attributes

reg_key
5c41cf8b7fd17bab9bf957c2625a7998
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
1960	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	580.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5c41cf8b7fd17bab9bf957c2625a7998.exe	skan.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5c41cf8b7fd17bab9bf957c2625a7998.exe	skan.exe

Executes dropped EXE 2 IoCs

pid	Process
3724	580.exe
1216	skan.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\5c41cf8b7fd17bab9bf957c2625a7998 = "\"C:\\Users\\Admin\\AppData\\Roaming\\skan.exe\" .."	skan.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5c41cf8b7fd17bab9bf957c2625a7998 = "\"C:\\Users\\Admin\\AppData\\Roaming\\skan.exe\" .."	skan.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 opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	1216	skan.exe
Token: 33	1216	skan.exe
Token: SeIncBasePriorityPrivilege	1216	skan.exe
Token: 33	1216	skan.exe
Token: SeIncBasePriorityPrivilege	1216	skan.exe
Token: 33	1216	skan.exe
Token: SeIncBasePriorityPrivilege	1216	skan.exe
Token: 33	1216	skan.exe
Token: SeIncBasePriorityPrivilege	1216	skan.exe
Token: 33	1216	skan.exe
Token: SeIncBasePriorityPrivilege	1216	skan.exe
Token: 33	1216	skan.exe
Token: SeIncBasePriorityPrivilege	1216	skan.exe
Token: 33	1216	skan.exe
Token: SeIncBasePriorityPrivilege	1216	skan.exe
Token: 33	1216	skan.exe
Token: SeIncBasePriorityPrivilege	1216	skan.exe
Token: 33	1216	skan.exe
Token: SeIncBasePriorityPrivilege	1216	skan.exe
Token: 33	1216	skan.exe
Token: SeIncBasePriorityPrivilege	1216	skan.exe
Token: 33	1216	skan.exe
Token: SeIncBasePriorityPrivilege	1216	skan.exe
Token: 33	1216	skan.exe
Token: SeIncBasePriorityPrivilege	1216	skan.exe
Token: 33	1216	skan.exe
Token: SeIncBasePriorityPrivilege	1216	skan.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3668 wrote to memory of 3724	3668	3933f1e8608aa3b1fd14fbae2a92a2270c57ea643214c5595a467d18cb40cd3aN.exe	83
PID 3668 wrote to memory of 3724	3668	3933f1e8608aa3b1fd14fbae2a92a2270c57ea643214c5595a467d18cb40cd3aN.exe	83
PID 3724 wrote to memory of 1216	3724	580.exe	84
PID 3724 wrote to memory of 1216	3724	580.exe	84
PID 1216 wrote to memory of 1960	1216	skan.exe	90
PID 1216 wrote to memory of 1960	1216	skan.exe	90

C:\Users\Admin\AppData\Local\Temp\3933f1e8608aa3b1fd14fbae2a92a2270c57ea643214c5595a467d18cb40cd3aN.exe
"C:\Users\Admin\AppData\Local\Temp\3933f1e8608aa3b1fd14fbae2a92a2270c57ea643214c5595a467d18cb40cd3aN.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3668
- C:\Users\Admin\AppData\Local\Temp\580.exe
  C:\Users\Admin\AppData\Local\Temp\580.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3724
- - C:\Users\Admin\AppData\Roaming\skan.exe
    "C:\Users\Admin\AppData\Roaming\skan.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1216
  - - C:\Windows\SYSTEM32\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\skan.exe" "skan.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      PID:1960

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\580.exe

Filesize
33KB

MD5
c62c5e248e213d91288f4001ed176661

SHA1
ff089bc99f52dd67f51567a07a89214a157293d1

SHA256
83175db32d50749270cfe3ca3c102c07062f2e33c9a12fbc944b331c92c19a53

SHA512
a26fc307d474e44679bb50cfef4216d6512900c753426f6b77d2908ef95cfee9c704bc36c05c6cd6cd8dab044edd7ae702ea26026edf33ed4b0cb09a9fc5beb9

Download Submit
memory/1216-33-0x00007FF855C80000-0x00007FF856741000-memory.dmp

Filesize
10.8MB

Download
memory/1216-30-0x00007FF855C80000-0x00007FF856741000-memory.dmp

Filesize
10.8MB

Download
memory/3668-0-0x00007FF8578F5000-0x00007FF8578F6000-memory.dmp

Filesize
4KB

Download
memory/3668-1-0x000000001BDC0000-0x000000001BE66000-memory.dmp

Filesize
664KB

Download
memory/3668-2-0x00007FF857640000-0x00007FF857FE1000-memory.dmp

Filesize
9.6MB

Download
memory/3668-7-0x00007FF857640000-0x00007FF857FE1000-memory.dmp

Filesize
9.6MB

Download
memory/3668-25-0x00007FF857640000-0x00007FF857FE1000-memory.dmp

Filesize
9.6MB

Download
memory/3724-14-0x0000000001210000-0x000000000121C000-memory.dmp

Filesize
48KB

Download
memory/3724-13-0x0000000001200000-0x000000000120A000-memory.dmp

Filesize
40KB

Download
memory/3724-12-0x00000000011F0000-0x00000000011FC000-memory.dmp

Filesize
48KB

Download
memory/3724-11-0x00000000011D0000-0x00000000011DC000-memory.dmp

Filesize
48KB

Download
memory/3724-15-0x00007FF855C80000-0x00007FF856741000-memory.dmp

Filesize
10.8MB

Download
memory/3724-10-0x00000000011C0000-0x00000000011CA000-memory.dmp

Filesize
40KB

Download
memory/3724-9-0x00000000009F0000-0x00000000009FE000-memory.dmp

Filesize
56KB

Download
memory/3724-31-0x00007FF855C80000-0x00007FF856741000-memory.dmp

Filesize
10.8MB

Download
memory/3724-8-0x00007FF855C83000-0x00007FF855C85000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads