njrat | 3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860

General

Target
3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860.exe
Size 102KB
Sample201110-7b47kc6efj
SHA256 3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860
MD5 a00c8360d1b0547855d14b4dfb600f31
SHA1 aab9f66e546cc9cb6b3ca1c7b99f1d22568ef180
SHA512 22b87ab25f4c3742913af78e6fe9f0814a047f4a343c7872d4f2a630cd36d28ed34a9507b51b1850142ac92ecee156499c2fe4d3bdc813c66e6f7e09660a5408
MD5 SHA1 SHA512

Score

10^/10

njrat neuf evasion persistence 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

Executes dropped EXE 2 IoCs

pid	Process
884	chargeable.exe
568	chargeable.exe

Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

Loads dropped DLL 2 IoCs

pid	Process
684	3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860.exe
684	3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860.exe"	3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 884 set thread context of 568	884	chargeable.exe	30

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	568	chargeable.exe
Token: 33	568	chargeable.exe
Token: SeIncBasePriorityPrivilege	568	chargeable.exe
Token: 33	568	chargeable.exe
Token: SeIncBasePriorityPrivilege	568	chargeable.exe
Token: 33	568	chargeable.exe
Token: SeIncBasePriorityPrivilege	568	chargeable.exe
Token: 33	568	chargeable.exe
Token: SeIncBasePriorityPrivilege	568	chargeable.exe
Token: 33	568	chargeable.exe
Token: SeIncBasePriorityPrivilege	568	chargeable.exe
Token: 33	568	chargeable.exe
Token: SeIncBasePriorityPrivilege	568	chargeable.exe
Token: 33	568	chargeable.exe
Token: SeIncBasePriorityPrivilege	568	chargeable.exe
Token: 33	568	chargeable.exe
Token: SeIncBasePriorityPrivilege	568	chargeable.exe
Token: 33	568	chargeable.exe
Token: SeIncBasePriorityPrivilege	568	chargeable.exe
Token: 33	568	chargeable.exe
Token: SeIncBasePriorityPrivilege	568	chargeable.exe
Token: 33	568	chargeable.exe
Token: SeIncBasePriorityPrivilege	568	chargeable.exe
Token: 33	568	chargeable.exe
Token: SeIncBasePriorityPrivilege	568	chargeable.exe
Token: 33	568	chargeable.exe
Token: SeIncBasePriorityPrivilege	568	chargeable.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 684 wrote to memory of 884	684	3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860.exe	29
PID 684 wrote to memory of 884	684	3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860.exe	29
PID 684 wrote to memory of 884	684	3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860.exe	29
PID 684 wrote to memory of 884	684	3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860.exe	29
PID 884 wrote to memory of 568	884	chargeable.exe	30
PID 884 wrote to memory of 568	884	chargeable.exe	30
PID 884 wrote to memory of 568	884	chargeable.exe	30
PID 884 wrote to memory of 568	884	chargeable.exe	30
PID 884 wrote to memory of 568	884	chargeable.exe	30
PID 884 wrote to memory of 568	884	chargeable.exe	30
PID 884 wrote to memory of 568	884	chargeable.exe	30
PID 884 wrote to memory of 568	884	chargeable.exe	30
PID 884 wrote to memory of 568	884	chargeable.exe	30
PID 568 wrote to memory of 1724	568	chargeable.exe	31
PID 568 wrote to memory of 1724	568	chargeable.exe	31
PID 568 wrote to memory of 1724	568	chargeable.exe	31
PID 568 wrote to memory of 1724	568	chargeable.exe	31

C:\Users\Admin\AppData\Local\Temp\3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860.exe
"C:\Users\Admin\AppData\Local\Temp\3ac6101bf9cabe27660ef1e55682d73fdfda003da84bcfcb86e40828383b4860.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:684
- 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:884
- - 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:568
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
      4⤵
      PID:1724

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/568-5-0x0000000000400000-0x000000000040C000-memory.dmp

Download

memory/568-8-0x0000000000400000-0x000000000040C000-memory.dmp

Download

memory/568-9-0x0000000000400000-0x000000000040C000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads