njrat | 1ae11a30e1d4021c5335ded1f2b25ed86834b20bc38b334fe897ab16fc15224c

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
20/05/2024, 23:11

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General

Target
05b296b871b9960925421fb5bae54f1e.exe
Size 113KB
Sample240520-259geabc2v
SHA256 1ae11a30e1d4021c5335ded1f2b25ed86834b20bc38b334fe897ab16fc15224c
MD5 05b296b871b9960925421fb5bae54f1e
SHA1 650e461dd26fc76086dc4826ff1a48d7628a1fe1
SHA512 3c74705a4bb4818718855ddb80a9775598e23717887fa252b63f82e411317f12c269d204dc0ef849a4f55be484942015ae869f0074842338794c7409c19ca713
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuM/:P5eznsjsguGDFqGZ2r/
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat neuf evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

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
2992	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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	05b296b871b9960925421fb5bae54f1e.exe

Executes dropped EXE 2 IoCs

pid	Process
3760	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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	05b296b871b9960925421fb5bae54f1e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\05b296b871b9960925421fb5bae54f1e.exe"	05b296b871b9960925421fb5bae54f1e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3760 set thread context of 4048	3760	chargeable.exe	96

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 33 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
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 2284 wrote to memory of 3760	2284	05b296b871b9960925421fb5bae54f1e.exe	94
PID 2284 wrote to memory of 3760	2284	05b296b871b9960925421fb5bae54f1e.exe	94
PID 2284 wrote to memory of 3760	2284	05b296b871b9960925421fb5bae54f1e.exe	94
PID 3760 wrote to memory of 4048	3760	chargeable.exe	96
PID 3760 wrote to memory of 4048	3760	chargeable.exe	96
PID 3760 wrote to memory of 4048	3760	chargeable.exe	96
PID 3760 wrote to memory of 4048	3760	chargeable.exe	96
PID 3760 wrote to memory of 4048	3760	chargeable.exe	96
PID 3760 wrote to memory of 4048	3760	chargeable.exe	96
PID 3760 wrote to memory of 4048	3760	chargeable.exe	96
PID 3760 wrote to memory of 4048	3760	chargeable.exe	96
PID 4048 wrote to memory of 2992	4048	chargeable.exe	97
PID 4048 wrote to memory of 2992	4048	chargeable.exe	97
PID 4048 wrote to memory of 2992	4048	chargeable.exe	97

C:\Users\Admin\AppData\Local\Temp\05b296b871b9960925421fb5bae54f1e.exe
"C:\Users\Admin\AppData\Local\Temp\05b296b871b9960925421fb5bae54f1e.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2284
- C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
  "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3760
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    - 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
      PID:2992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

chargeable.exe

Path C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
Size 113KB
SHA256 8e152e6f6bfd1229f000e94dd1d7ac6fdb0586f23690dbe99ad960872af3968d
MD5 bd35b4555875e7b1e74d34ad59b2742b
SHA1 290215700a899256c445b505d149a2ca25199c83
SHA512 8fcc9847e82c8463c95dd878dc46775abe9b098ed7d09990721a762266bb63e75f89b31efd0f2f52aaece5f51106a6a1c44b1d78852864af5a4ea0a2f12e0841
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMd:P5eznsjsguGDFqGZ2rd
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2284-0-0x0000000074842000-0x0000000074843000-memory.dmp

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memory/2284-1-0x0000000074840000-0x0000000074DF1000-memory.dmp

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memory/2284-2-0x0000000074840000-0x0000000074DF1000-memory.dmp

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memory/2284-17-0x0000000074840000-0x0000000074DF1000-memory.dmp

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memory/3760-18-0x0000000074840000-0x0000000074DF1000-memory.dmp

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memory/3760-19-0x0000000074840000-0x0000000074DF1000-memory.dmp

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memory/3760-23-0x0000000074840000-0x0000000074DF1000-memory.dmp

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memory/4048-20-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/4048-24-0x0000000074840000-0x0000000074DF1000-memory.dmp

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memory/4048-25-0x0000000074840000-0x0000000074DF1000-memory.dmp

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memory/4048-26-0x0000000074840000-0x0000000074DF1000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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