njrat | 7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265

General

Target

7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265.exe
Size

930KB
MD5

8c991614d64dd76549a06d317f582435
SHA1

8070436cbcb78cc90455477778d2d6a4c49abb65
SHA256

7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265
SHA512

69616aa5a34cc10a71d3d3398c9b9f9fd59e411d95bd5a6eb7ddc63abeec51c2cd15c83605d00c75e9d13c25b86274f747230c6c684db17844cd121f1f3615c6
SSDEEP

24576:lyx6q7OtSIZM98utO/MMEApCahAtcg6Zld6BbfZG:Ax17tUMO/MMtlA+Zz65fZG

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

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
2112	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:

tournour.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	tournour.exe

Drops startup file 2 IoCs

Processes:

svchost.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ba4c12bee3027d94da5c81db2d196bfd.exe	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ba4c12bee3027d94da5c81db2d196bfd.exe	svchost.exe

Executes dropped EXE 3 IoCs

Processes:

tournour.exesvchost.exeOBOXCL~1.EXE

pid	Process
2264	tournour.exe
4376	svchost.exe
2752	OBOXCL~1.EXE

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265.exesvchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ba4c12bee3027d94da5c81db2d196bfd = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ba4c12bee3027d94da5c81db2d196bfd = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .."	svchost.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

tournour.exe

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	tournour.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	tournour.exe

Drops file in Windows directory 3 IoCs

Processes:

tournour.exe

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	tournour.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	tournour.exe
File opened for modification	C:\Windows\assembly	tournour.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\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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:

7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265.exeOBOXCL~1.EXE

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OBOXCL~1.EXE

Suspicious behavior: EnumeratesProcesses 36 IoCs

Processes:

svchost.exe

pid	Process
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

tournour.exesvchost.exe

description	pid	Process
Token: SeDebugPrivilege	2264	tournour.exe
Token: 33	2264	tournour.exe
Token: SeIncBasePriorityPrivilege	2264	tournour.exe
Token: SeDebugPrivilege	4376	svchost.exe
Token: 33	4376	svchost.exe
Token: SeIncBasePriorityPrivilege	4376	svchost.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

OBOXCL~1.EXE

pid	Process
2752	OBOXCL~1.EXE
2752	OBOXCL~1.EXE

Suspicious use of SendNotifyMessage 2 IoCs

Processes:

OBOXCL~1.EXE

pid	Process
2752	OBOXCL~1.EXE
2752	OBOXCL~1.EXE

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265.exetournour.exesvchost.exe

description	pid	Process	procid_target
PID 5100 wrote to memory of 2264	5100	7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265.exe	82
PID 5100 wrote to memory of 2264	5100	7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265.exe	82
PID 2264 wrote to memory of 4376	2264	tournour.exe	83
PID 2264 wrote to memory of 4376	2264	tournour.exe	83
PID 4376 wrote to memory of 2112	4376	svchost.exe	84
PID 4376 wrote to memory of 2112	4376	svchost.exe	84
PID 5100 wrote to memory of 2752	5100	7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265.exe	86
PID 5100 wrote to memory of 2752	5100	7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265.exe	86
PID 5100 wrote to memory of 2752	5100	7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265.exe	86

C:\Users\Admin\AppData\Local\Temp\7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265.exe
"C:\Users\Admin\AppData\Local\Temp\7d94e771fc58a9d7f9a9b851c49bd7c013db08d083837a586af6089ab4246265.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5100
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tournour.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tournour.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Users\Admin\AppData\Local\Temp\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4376
  - - C:\Windows\SYSTEM32\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      PID:2112
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\OBOXCL~1.EXE
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\OBOXCL~1.EXE
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2752

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\OBOXCL~1.EXE

Filesize
1.8MB

MD5
19c5f2529928354f11d85cbadb7b1241

SHA1
369de9fd7a522d5f95b98c1a1d17d98c36d806e3

SHA256
ea513d83410e658ff98696f6127cc695260ed87d2dc9243c5a4257fdc236ab1b

SHA512
a2eb4caa3741798b371bdaeb17cfdc07fc0272016ec2a8d8de2a31a8c1d8b10763c66630c81fd107f39b2974fca9adfedb253669bf39781ee0928b9d7cb54548

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tournour.exe

Filesize
192KB

MD5
9fe2c5c40cfa595dc7654c60ef18f8ae

SHA1
866a066b6655e7d20c4a769ca1454f20dac95c4a

SHA256
39748fe2be41922a654fbbaf81d4f012410f8eff5366ae7c4ff0af69e8caea3d

SHA512
43c23e7663ca1316469dc70ab8622dc1bf78e4f021847dc965bfe7acccb96ea269dd4bcee7bfa28249bf3a434114f6b8d0a5f94bb459b90a7abe81028d61a56a

Download Submit
memory/2264-14-0x0000000000A40000-0x0000000000A50000-memory.dmp

Filesize
64KB

Download
memory/2264-18-0x000000001C250000-0x000000001C25E000-memory.dmp

Filesize
56KB

Download
memory/2264-10-0x000000001BC60000-0x000000001BCFC000-memory.dmp

Filesize
624KB

Download
memory/2264-11-0x00007FF9DB9D0000-0x00007FF9DC371000-memory.dmp

Filesize
9.6MB

Download
memory/2264-12-0x00007FF9DB9D0000-0x00007FF9DC371000-memory.dmp

Filesize
9.6MB

Download
memory/2264-13-0x00007FF9DB9D0000-0x00007FF9DC371000-memory.dmp

Filesize
9.6MB

Download
memory/2264-8-0x00007FF9DB9D0000-0x00007FF9DC371000-memory.dmp

Filesize
9.6MB

Download
memory/2264-9-0x000000001B6F0000-0x000000001BBBE000-memory.dmp

Filesize
4.8MB

Download
memory/2264-19-0x000000001C400000-0x000000001C4A6000-memory.dmp

Filesize
664KB

Download
memory/2264-17-0x000000001B200000-0x000000001B20A000-memory.dmp

Filesize
40KB

Download
memory/2264-21-0x00007FF9DB9D0000-0x00007FF9DC371000-memory.dmp

Filesize
9.6MB

Download
memory/2264-33-0x00007FF9DB9D0000-0x00007FF9DC371000-memory.dmp

Filesize
9.6MB

Download
memory/2264-34-0x00007FF9DB9D0000-0x00007FF9DC371000-memory.dmp

Filesize
9.6MB

Download
memory/2264-7-0x00007FF9DBC85000-0x00007FF9DBC86000-memory.dmp

Filesize
4KB

Download
memory/2752-40-0x0000000000400000-0x00000000005D1000-memory.dmp

Filesize
1.8MB

Download
memory/4376-39-0x000000001BC70000-0x000000001BC78000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads