njrat | d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71

General

Target

d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe
Size

8.7MB
MD5

b8dea12b18abb8055590537ebce7e3b7
SHA1

9718e3a3d458aee5c658918481ad0c5eeefa1ff2
SHA256

d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71
SHA512

d19b2cf6643dc6e30024a4024120645f1ecc03e9c9c757466fb3dcdb0fde9b0ad88b7100b334a86c7145eebfcc6a58b78978f1ee6b02c96e7e13e4f4cc9be97e
SSDEEP

196608:hCbGPZmVfjsCbGPZmVfjiCbGPZmVfjsCbGPZmVfj2CbGPZmVfjsCbGPZmVfjiCb0:0GmVNGmVrGmVNGmVnGmVNGmVrGmVNGmQ

Score

10^/10

njrat jjj defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

jjj

C2

youri.mooo.com:1605

Mutex

e936a10f968ac948cd351c9629dbd36d

Attributes

reg_key
e936a10f968ac948cd351c9629dbd36d
splitter
|'|'|

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3992	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-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
5008	winmgr107.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-1-5-21-308834014-1004923324-1191300197-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2 = "C:\\ProgramData\\winmgr107.exe"	d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2 = "C:\\ProgramData\\winmgr107.exe"	winmgr107.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0008000000024273-9.dat	autoit_exe
behavioral2/files/0x000700000002426b-11.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5008 set thread context of 5464	5008	winmgr107.exe	100

Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 2 IoCs

When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

defense_evasion

SIP and Trust Provider Hijacking

T1553.003

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe:Zone.Identifier:$DATA	d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe
File created	C:\ProgramData\winmgr107.exe:Zone.Identifier:$DATA	winmgr107.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\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 8 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NOTEPAD.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winmgr107.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000_Classes\Local Settings	cmd.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe:Zone.Identifier:$DATA	d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe
File created	C:\ProgramData\winmgr107.exe:Zone.Identifier:$DATA	winmgr107.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3816	schtasks.exe
5184	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1940	d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe
1940	d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe
5008	winmgr107.exe
5008	winmgr107.exe
5008	winmgr107.exe
5008	winmgr107.exe
5008	winmgr107.exe
5008	winmgr107.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2516	1940	d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe	95
PID 1940 wrote to memory of 2516	1940	d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe	95
PID 1940 wrote to memory of 2516	1940	d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe	95
PID 2516 wrote to memory of 3220	2516	cmd.exe	97
PID 2516 wrote to memory of 3220	2516	cmd.exe	97
PID 2516 wrote to memory of 3220	2516	cmd.exe	97
PID 1940 wrote to memory of 5008	1940	d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe	98
PID 1940 wrote to memory of 5008	1940	d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe	98
PID 1940 wrote to memory of 5008	1940	d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe	98
PID 5008 wrote to memory of 5464	5008	winmgr107.exe	100
PID 5008 wrote to memory of 5464	5008	winmgr107.exe	100
PID 5008 wrote to memory of 5464	5008	winmgr107.exe	100
PID 5008 wrote to memory of 5464	5008	winmgr107.exe	100
PID 5008 wrote to memory of 5464	5008	winmgr107.exe	100
PID 5008 wrote to memory of 3816	5008	winmgr107.exe	101
PID 5008 wrote to memory of 3816	5008	winmgr107.exe	101
PID 5008 wrote to memory of 3816	5008	winmgr107.exe	101
PID 5008 wrote to memory of 5184	5008	winmgr107.exe	103
PID 5008 wrote to memory of 5184	5008	winmgr107.exe	103
PID 5008 wrote to memory of 5184	5008	winmgr107.exe	103
PID 5464 wrote to memory of 3992	5464	RegAsm.exe	105
PID 5464 wrote to memory of 3992	5464	RegAsm.exe	105
PID 5464 wrote to memory of 3992	5464	RegAsm.exe	105

C:\Users\Admin\AppData\Local\Temp\d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe
"C:\Users\Admin\AppData\Local\Temp\d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe"
1⤵
- Adds Run key to start application
- Subvert Trust Controls: Mark-of-the-Web Bypass
- System Location Discovery: System Language Discovery
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c start C:\PROGRA~3\D1605A~1.TXT
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Windows\SysWOW64\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\PROGRA~3\d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe.txt
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3220
- C:\ProgramData\winmgr107.exe
  C:\ProgramData\winmgr107.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Subvert Trust Controls: Mark-of-the-Web Bypass
  - System Location Discovery: System Language Discovery
  - NTFS ADS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:5008
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    0
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5464
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:3992
- - C:\Windows\SysWOW64\schtasks.exe
    C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3816
- - C:\Windows\SysWOW64\schtasks.exe
    C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5184

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Subvert Trust Controls

1

T1553

SIP and Trust Provider Hijacking

1

T1553.003

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:\PROGRA~3\d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe.txt

Filesize
992B

MD5
c8cf7247d4cfc99a7582a42d13df4c08

SHA1
317f5588af0b3b6374c436fb00084c522fd78a83

SHA256
78bd99781e971622f1573bccf2ae9cdd7a7498cf81c1875afc65913e1083b1d0

SHA512
5dd86b7ba388e5d2ad61b1c69589f42c36eec23a04b3cece0941133e0cf0e8a6f1f3aa2242d87af72db725b4b96032dadae72b3be98af3cfce5786ad8c08c357

Download Submit
C:\ProgramData\winmgr107.exe

Filesize
8.7MB

MD5
8e0a3b87db7c26744cb7c7b9c770d655

SHA1
5e8b97eb3278181f85ee0f5306343259713c8e37

SHA256
516f47ef732c198e39170f4cc9a2f382081f1834a56a951f8b84252c3456ea85

SHA512
18bb9028b8061327c35d4c895c24295bd4c2232d6012ac3a64b71ef29c743a3d78dcdce9f0cacbeaf29bc5a00d62e49039995f1de9da70bb92b2e51fe35174bc

Download Submit
C:\Users\Admin\AppData\Local\Temp\d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71.exe

Filesize
8.7MB

MD5
b8dea12b18abb8055590537ebce7e3b7

SHA1
9718e3a3d458aee5c658918481ad0c5eeefa1ff2

SHA256
d1605a7295c689f1f4edd9eb1f8451b929d59e50208c5e32139d0095fd5edc71

SHA512
d19b2cf6643dc6e30024a4024120645f1ecc03e9c9c757466fb3dcdb0fde9b0ad88b7100b334a86c7145eebfcc6a58b78978f1ee6b02c96e7e13e4f4cc9be97e

Download Submit
memory/5464-15-0x0000000001170000-0x000000000117C000-memory.dmp

Filesize
48KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads