njrat | 1e0d019421d4ff252ecef39984f7e65475b78dcfb24bbfef83579e86ce0dc23d

General

Target

3bd5f723cd50d790a31f7a7854597438.exe
Size

14.6MB
MD5

3bd5f723cd50d790a31f7a7854597438
SHA1

c0223ba8beadb32eadb6778929c69e3ffb7173f8
SHA256

1e0d019421d4ff252ecef39984f7e65475b78dcfb24bbfef83579e86ce0dc23d
SHA512

21ef897fa72ea9c45adbda395d121f48f29311a6b0994c26f6d46043b02e9b4441919c018a3c47469d593d63acdbec5445ae88d5e05f4ef80cd62861d228d8e4
SSDEEP

196608:izm4LCplt2cxLJKDY/Xk8+z3fA+j+9UNV7EZIHGaFUlWhR+ZU/TvvTTFyAUh+S:WzKlt2ctBUH+9UNlst2oWhRd3fFycS

Score

10^/10

njrat pro-system discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Pro-SYstem

C2

x555hd.ddns.net:555

Mutex

9e82a5ccaed752a57fda004b4018de61

Attributes

reg_key
9e82a5ccaed752a57fda004b4018de61
splitter
|'|'|

Signatures

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
3024	netsh.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	3bd5f723cd50d790a31f7a7854597438.exe
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	Tempdll.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9e82a5ccaed752a57fda004b4018de61.exe	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9e82a5ccaed752a57fda004b4018de61.exe	system.exe

Executes dropped EXE 3 IoCs

pid	Process
432	TempWaircut.exe
8	Tempdll.exe
3528	system.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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9e82a5ccaed752a57fda004b4018de61 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9e82a5ccaed752a57fda004b4018de61 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.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

System Location Discovery: System Language Discovery 1 TTPs 1 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	TempWaircut.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe
Token: 33	3528	system.exe
Token: SeIncBasePriorityPrivilege	3528	system.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1416 wrote to memory of 432	1416	3bd5f723cd50d790a31f7a7854597438.exe	82
PID 1416 wrote to memory of 432	1416	3bd5f723cd50d790a31f7a7854597438.exe	82
PID 1416 wrote to memory of 432	1416	3bd5f723cd50d790a31f7a7854597438.exe	82
PID 1416 wrote to memory of 8	1416	3bd5f723cd50d790a31f7a7854597438.exe	83
PID 1416 wrote to memory of 8	1416	3bd5f723cd50d790a31f7a7854597438.exe	83
PID 8 wrote to memory of 3528	8	Tempdll.exe	84
PID 8 wrote to memory of 3528	8	Tempdll.exe	84
PID 3528 wrote to memory of 3024	3528	system.exe	90
PID 3528 wrote to memory of 3024	3528	system.exe	90

C:\Users\Admin\AppData\Local\Temp\3bd5f723cd50d790a31f7a7854597438.exe
"C:\Users\Admin\AppData\Local\Temp\3bd5f723cd50d790a31f7a7854597438.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1416
- C:\Users\Admin\AppData\Local\TempWaircut.exe
  "C:\Users\Admin\AppData\Local\TempWaircut.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:432
- C:\Users\Admin\AppData\Local\Tempdll.exe
  "C:\Users\Admin\AppData\Local\Tempdll.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:8
- - C:\Users\Admin\AppData\Local\Temp\system.exe
    "C:\Users\Admin\AppData\Local\Temp\system.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3528
  - - C:\Windows\SYSTEM32\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      PID:3024

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\TempWaircut.exe

Filesize
1.7MB

MD5
9d11a8641aae3c20c2f39c89e75798ab

SHA1
67c22959a14eb6aa8ab21dd030811d791bc22c37

SHA256
600986e9892988ba772ce853c559fb7c28186e84422af9aed53f2327f5ff45de

SHA512
f6739302bc2693797e25698e92824ab038df7908ad2a6ff27d5cf63aa550676bd94391f8daaf13913b8ebb225ebbebfbfb209a5e5071dbc6b7947dc7349fad38

Download Submit
C:\Users\Admin\AppData\Local\Tempdll.exe

Filesize
12.8MB

MD5
9d6ebd112a00820fe5e69d310f3e1cac

SHA1
6e1b620b911e120393332b53744bf79d5ba078ff

SHA256
e8caf237b229f1361ea8719c0b75318e39a52e2f4bf0c27f83695b00d0a6a8ef

SHA512
5c5935d0733735f6ca00dc72c8b3688e24c55ee6d7c51da838ed3c99a2c05d9366145bbebb567092e2912ecc32d8627c434f06b52af0fa3d4735d8e1ee937e5b

Download Submit
memory/8-58-0x00007FFDEB740000-0x00007FFDEC0E1000-memory.dmp

Filesize
9.6MB

Download
memory/8-36-0x0000000002400000-0x000000000240C000-memory.dmp

Filesize
48KB

Download
memory/8-35-0x00007FFDEB740000-0x00007FFDEC0E1000-memory.dmp

Filesize
9.6MB

Download
memory/8-34-0x00007FFDEB740000-0x00007FFDEC0E1000-memory.dmp

Filesize
9.6MB

Download
memory/8-33-0x00007FFDEB9F5000-0x00007FFDEB9F6000-memory.dmp

Filesize
4KB

Download
memory/432-41-0x00000000052D0000-0x00000000052DA000-memory.dmp

Filesize
40KB

Download
memory/432-43-0x00000000055A0000-0x00000000055C2000-memory.dmp

Filesize
136KB

Download
memory/432-59-0x0000000074E0E000-0x0000000074E0F000-memory.dmp

Filesize
4KB

Download
memory/432-20-0x0000000074E0E000-0x0000000074E0F000-memory.dmp

Filesize
4KB

Download
memory/432-42-0x0000000005350000-0x00000000053A6000-memory.dmp

Filesize
344KB

Download
memory/432-30-0x00000000003E0000-0x000000000059E000-memory.dmp

Filesize
1.7MB

Download
memory/432-40-0x000000000A6E0000-0x000000000A772000-memory.dmp

Filesize
584KB

Download
memory/432-39-0x000000000AC90000-0x000000000B234000-memory.dmp

Filesize
5.6MB

Download
memory/432-38-0x000000000A640000-0x000000000A6DC000-memory.dmp

Filesize
624KB

Download
memory/432-37-0x00000000073D0000-0x0000000007596000-memory.dmp

Filesize
1.8MB

Download
memory/1416-2-0x00007FFDEB740000-0x00007FFDEC0E1000-memory.dmp

Filesize
9.6MB

Download
memory/1416-3-0x000000001CAF0000-0x000000001CFBE000-memory.dmp

Filesize
4.8MB

Download
memory/1416-4-0x000000001D060000-0x000000001D0FC000-memory.dmp

Filesize
624KB

Download
memory/1416-5-0x0000000001B30000-0x0000000001B38000-memory.dmp

Filesize
32KB

Download
memory/1416-0-0x00007FFDEB9F5000-0x00007FFDEB9F6000-memory.dmp

Filesize
4KB

Download
memory/1416-6-0x000000001D160000-0x000000001D1AC000-memory.dmp

Filesize
304KB

Download
memory/1416-9-0x00007FFDEB740000-0x00007FFDEC0E1000-memory.dmp

Filesize
9.6MB

Download
memory/1416-44-0x00007FFDEB9F5000-0x00007FFDEB9F6000-memory.dmp

Filesize
4KB

Download
memory/1416-45-0x00007FFDEB740000-0x00007FFDEC0E1000-memory.dmp

Filesize
9.6MB

Download
memory/1416-1-0x000000001C570000-0x000000001C616000-memory.dmp

Filesize
664KB

Download
memory/1416-7-0x00007FFDEB740000-0x00007FFDEC0E1000-memory.dmp

Filesize
9.6MB

Download
memory/3528-64-0x000000001D7C0000-0x000000001D822000-memory.dmp

Filesize
392KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads