njrat | 7b92a7744d821aa93f8e4f3df04755c8d616b010a46707a0bc3a4c00a6629a24

General

Target
33734f7579db90acf14dc3b02021fb10N.exe
Size 117KB
Sample240801-dplteayenm
SHA256 7b92a7744d821aa93f8e4f3df04755c8d616b010a46707a0bc3a4c00a6629a24
MD5 33734f7579db90acf14dc3b02021fb10
SHA1 10c7b0d27bef3acf898c4a371db06f2ce5084266
SHA512 51f57a61e34b1d2d19ff18e05653002d5711ed9012a6831340f93c814cb468a63a542c6b46016058c693dd0336d9245c9af95e3aa77e96ed44b0ac7cf8c04eb3
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLx:P5eznsjsguGDFqGZ2rDLx
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat neuf discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes

reg_key
e1a87040f2026369a233f9ae76301b7b
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
2188	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-1-5-21-2951562807-3718269429-4208157415-1000\Control Panel\International\Geo\Nation	33734f7579db90acf14dc3b02021fb10N.exe

Executes dropped EXE 3 IoCs

pid	Process
4680	chargeable.exe
5012	chargeable.exe
2944	chargeable.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-1-5-21-2951562807-3718269429-4208157415-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	33734f7579db90acf14dc3b02021fb10N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2951562807-3718269429-4208157415-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\33734f7579db90acf14dc3b02021fb10N.exe"	33734f7579db90acf14dc3b02021fb10N.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4680 set thread context of 5012	4680	chargeable.exe	88
PID 4680 set thread context of 2944	4680	chargeable.exe	87

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\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3916	2944	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 4 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	33734f7579db90acf14dc3b02021fb10N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	5012	chargeable.exe
Token: 33	5012	chargeable.exe
Token: SeIncBasePriorityPrivilege	5012	chargeable.exe
Token: 33	5012	chargeable.exe
Token: SeIncBasePriorityPrivilege	5012	chargeable.exe
Token: 33	5012	chargeable.exe
Token: SeIncBasePriorityPrivilege	5012	chargeable.exe
Token: 33	5012	chargeable.exe
Token: SeIncBasePriorityPrivilege	5012	chargeable.exe
Token: 33	5012	chargeable.exe
Token: SeIncBasePriorityPrivilege	5012	chargeable.exe
Token: 33	5012	chargeable.exe
Token: SeIncBasePriorityPrivilege	5012	chargeable.exe
Token: 33	5012	chargeable.exe
Token: SeIncBasePriorityPrivilege	5012	chargeable.exe
Token: 33	5012	chargeable.exe
Token: SeIncBasePriorityPrivilege	5012	chargeable.exe
Token: 33	5012	chargeable.exe
Token: SeIncBasePriorityPrivilege	5012	chargeable.exe
Token: 33	5012	chargeable.exe
Token: SeIncBasePriorityPrivilege	5012	chargeable.exe
Token: 33	5012	chargeable.exe
Token: SeIncBasePriorityPrivilege	5012	chargeable.exe
Token: 33	5012	chargeable.exe
Token: SeIncBasePriorityPrivilege	5012	chargeable.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 3420 wrote to memory of 4680	3420	33734f7579db90acf14dc3b02021fb10N.exe	86
PID 3420 wrote to memory of 4680	3420	33734f7579db90acf14dc3b02021fb10N.exe	86
PID 3420 wrote to memory of 4680	3420	33734f7579db90acf14dc3b02021fb10N.exe	86
PID 4680 wrote to memory of 2944	4680	chargeable.exe	87
PID 4680 wrote to memory of 2944	4680	chargeable.exe	87
PID 4680 wrote to memory of 2944	4680	chargeable.exe	87
PID 4680 wrote to memory of 5012	4680	chargeable.exe	88
PID 4680 wrote to memory of 5012	4680	chargeable.exe	88
PID 4680 wrote to memory of 5012	4680	chargeable.exe	88
PID 4680 wrote to memory of 5012	4680	chargeable.exe	88
PID 4680 wrote to memory of 5012	4680	chargeable.exe	88
PID 4680 wrote to memory of 5012	4680	chargeable.exe	88
PID 4680 wrote to memory of 5012	4680	chargeable.exe	88
PID 4680 wrote to memory of 5012	4680	chargeable.exe	88
PID 4680 wrote to memory of 2944	4680	chargeable.exe	87
PID 4680 wrote to memory of 2944	4680	chargeable.exe	87
PID 4680 wrote to memory of 2944	4680	chargeable.exe	87
PID 4680 wrote to memory of 2944	4680	chargeable.exe	87
PID 4680 wrote to memory of 2944	4680	chargeable.exe	87
PID 5012 wrote to memory of 2188	5012	chargeable.exe	92
PID 5012 wrote to memory of 2188	5012	chargeable.exe	92
PID 5012 wrote to memory of 2188	5012	chargeable.exe	92

C:\Users\Admin\AppData\Local\Temp\33734f7579db90acf14dc3b02021fb10N.exe
"C:\Users\Admin\AppData\Local\Temp\33734f7579db90acf14dc3b02021fb10N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
  "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4680
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    PID:2944
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2944 -s 80
      4⤵
      Program crash
      PID:3916
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:5012
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:2188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2944 -ip 2944
1⤵
PID:940

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

chargeable.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log
Size 400B
SHA256 c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd
MD5 0a9b4592cd49c3c21f6767c2dabda92f
SHA1 f534297527ae5ccc0ecb2221ddeb8e58daeb8b74
SHA512 6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307
MD5 SHA1 SHA512

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chargeable.exe

Path C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
Size 117KB
SHA256 141a4605fefbb136b15aafae03b7aff7c49913be297c77fe37db53124b082044
MD5 e1058853f16f04219f217e57e5d73ed7
SHA1 b12444dd5b893f39c6d17f0f1562bc65a5b4963d
SHA512 d6570bb1fddaf030e08de3e4d65232e1010744d6ff4102a65c67d2593d6fd318d108ec8ff5ef4406713de33ac073ec3dbff85fbd3fef875148e2db62ade1163b
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLW:P5eznsjsguGDFqGZ2rDLW
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/3420-0-0x00007FFFA0CF0000-0x00007FFFA0EE5000-memory.dmp

Download

memory/3420-15-0x00007FFFA0CF0000-0x00007FFFA0EE5000-memory.dmp

Download

memory/4680-16-0x00007FFFA0CF0000-0x00007FFFA0EE5000-memory.dmp

Download

memory/5012-17-0x0000000000400000-0x000000000040C000-memory.dmp

Download

memory/5012-23-0x00007FFFA0CF0000-0x00007FFFA0EE5000-memory.dmp

Download

memory/5012-24-0x00007FFFA0CF0000-0x00007FFFA0EE5000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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