njrat | 38d5997bdfc0ee745efe26d526bea85eaf7997ec6cfd568b60e488eae4bcabc9

General

Target
479199de65a330af0c2fee7f229435e0N.exe
Size 116KB
Sample240802-dq8dssxelb
SHA256 38d5997bdfc0ee745efe26d526bea85eaf7997ec6cfd568b60e488eae4bcabc9
MD5 479199de65a330af0c2fee7f229435e0
SHA1 dae0702ad313618bda8186a4d3b40cec045d668c
SHA512 07c9d0f22a1c8ae572e4880ffb0ddd39371bd43f320a25efd1a1e278713db649bc7f71b079f419d032c5b91fb50e5f1b4a932043942601921cd4bdd37b618e9a
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDg:P5eznsjsguGDFqGZ2rDg
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
3920	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-1-5-21-2721909339-1374969515-2476821579-1000\Control Panel\International\Geo\Nation	479199de65a330af0c2fee7f229435e0N.exe

Executes dropped EXE 2 IoCs

pid	Process
1208	chargeable.exe
4048	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-1-5-21-2721909339-1374969515-2476821579-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\479199de65a330af0c2fee7f229435e0N.exe"	479199de65a330af0c2fee7f229435e0N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721909339-1374969515-2476821579-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	479199de65a330af0c2fee7f229435e0N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1208 set thread context of 4048	1208	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 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 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	479199de65a330af0c2fee7f229435e0N.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	4048	chargeable.exe
Token: 33	4048	chargeable.exe
Token: SeIncBasePriorityPrivilege	4048	chargeable.exe
Token: 33	4048	chargeable.exe
Token: SeIncBasePriorityPrivilege	4048	chargeable.exe
Token: 33	4048	chargeable.exe
Token: SeIncBasePriorityPrivilege	4048	chargeable.exe
Token: 33	4048	chargeable.exe
Token: SeIncBasePriorityPrivilege	4048	chargeable.exe
Token: 33	4048	chargeable.exe
Token: SeIncBasePriorityPrivilege	4048	chargeable.exe
Token: 33	4048	chargeable.exe
Token: SeIncBasePriorityPrivilege	4048	chargeable.exe
Token: 33	4048	chargeable.exe
Token: SeIncBasePriorityPrivilege	4048	chargeable.exe
Token: 33	4048	chargeable.exe
Token: SeIncBasePriorityPrivilege	4048	chargeable.exe
Token: 33	4048	chargeable.exe
Token: SeIncBasePriorityPrivilege	4048	chargeable.exe
Token: 33	4048	chargeable.exe
Token: SeIncBasePriorityPrivilege	4048	chargeable.exe
Token: 33	4048	chargeable.exe
Token: SeIncBasePriorityPrivilege	4048	chargeable.exe
Token: 33	4048	chargeable.exe
Token: SeIncBasePriorityPrivilege	4048	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 828 wrote to memory of 1208	828	479199de65a330af0c2fee7f229435e0N.exe	86
PID 828 wrote to memory of 1208	828	479199de65a330af0c2fee7f229435e0N.exe	86
PID 828 wrote to memory of 1208	828	479199de65a330af0c2fee7f229435e0N.exe	86
PID 1208 wrote to memory of 4048	1208	chargeable.exe	87
PID 1208 wrote to memory of 4048	1208	chargeable.exe	87
PID 1208 wrote to memory of 4048	1208	chargeable.exe	87
PID 1208 wrote to memory of 4048	1208	chargeable.exe	87
PID 1208 wrote to memory of 4048	1208	chargeable.exe	87
PID 1208 wrote to memory of 4048	1208	chargeable.exe	87
PID 1208 wrote to memory of 4048	1208	chargeable.exe	87
PID 1208 wrote to memory of 4048	1208	chargeable.exe	87
PID 4048 wrote to memory of 3920	4048	chargeable.exe	88
PID 4048 wrote to memory of 3920	4048	chargeable.exe	88
PID 4048 wrote to memory of 3920	4048	chargeable.exe	88

C:\Users\Admin\AppData\Local\Temp\479199de65a330af0c2fee7f229435e0N.exe
"C:\Users\Admin\AppData\Local\Temp\479199de65a330af0c2fee7f229435e0N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:828
- 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:1208
- - 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:4048
  - - 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:3920

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 116KB
SHA256 c70f5e793451970aacd23ef67ed17ca2ea07c17f7547c71538d2348a9ea5ebcb
MD5 c28197a672d9ff0b13efedcc84d9253e
SHA1 f3de0d2ec54b21e6ae91a8ed1abed5914c0ac1b0
SHA512 fb1c96630a48cbdce56078924899ec14dae7f977e08966e7ceaa43c58eae79c143d095ae03610fb878fe954dea762f8eb84a929cebd880327b89eed5d6df9c2b
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMD4:P5eznsjsguGDFqGZ2rD4
MD5 SHA1 SHA512 SSDEEP

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memory/828-0-0x00007FFAEDED0000-0x00007FFAEE0C5000-memory.dmp

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memory/828-15-0x00007FFAEDED0000-0x00007FFAEE0C5000-memory.dmp

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memory/1208-16-0x00007FFAEDED0000-0x00007FFAEE0C5000-memory.dmp

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memory/4048-17-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/4048-21-0x00007FFAEDED0000-0x00007FFAEE0C5000-memory.dmp

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memory/4048-22-0x00007FFAEDED0000-0x00007FFAEE0C5000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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