njrat | 45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97

General

Target
45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97.exe
Size 99KB
Sample201110-pbapka9apj
SHA256 45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97
MD5 a98c2865371f94d5f8482d6c21e85522
SHA1 1c34c168592dfa053d2991c64f9d101c43613db4
SHA512 c40b3679576c3906a4b1859594ae514f9535a2d936c3724d89c7514bb23bc244818a5edbbd03d047a166bcf2901d33acb7928d71064027ddb9c25563ff1387f1
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
1632	chargeable.exe
324	chargeable.exe

Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

Loads dropped DLL 2 IoCs

pid	Process
1664	45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97.exe
1664	45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97.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"	45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97.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\\45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97.exe"	45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1632 set thread context of 324	1632	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	324	chargeable.exe
Token: 33	324	chargeable.exe
Token: SeIncBasePriorityPrivilege	324	chargeable.exe
Token: 33	324	chargeable.exe
Token: SeIncBasePriorityPrivilege	324	chargeable.exe
Token: 33	324	chargeable.exe
Token: SeIncBasePriorityPrivilege	324	chargeable.exe
Token: 33	324	chargeable.exe
Token: SeIncBasePriorityPrivilege	324	chargeable.exe
Token: 33	324	chargeable.exe
Token: SeIncBasePriorityPrivilege	324	chargeable.exe
Token: 33	324	chargeable.exe
Token: SeIncBasePriorityPrivilege	324	chargeable.exe
Token: 33	324	chargeable.exe
Token: SeIncBasePriorityPrivilege	324	chargeable.exe
Token: 33	324	chargeable.exe
Token: SeIncBasePriorityPrivilege	324	chargeable.exe
Token: 33	324	chargeable.exe
Token: SeIncBasePriorityPrivilege	324	chargeable.exe
Token: 33	324	chargeable.exe
Token: SeIncBasePriorityPrivilege	324	chargeable.exe
Token: 33	324	chargeable.exe
Token: SeIncBasePriorityPrivilege	324	chargeable.exe
Token: 33	324	chargeable.exe
Token: SeIncBasePriorityPrivilege	324	chargeable.exe
Token: 33	324	chargeable.exe
Token: SeIncBasePriorityPrivilege	324	chargeable.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 1632	1664	45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97.exe	29
PID 1664 wrote to memory of 1632	1664	45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97.exe	29
PID 1664 wrote to memory of 1632	1664	45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97.exe	29
PID 1664 wrote to memory of 1632	1664	45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97.exe	29
PID 1632 wrote to memory of 324	1632	chargeable.exe	30
PID 1632 wrote to memory of 324	1632	chargeable.exe	30
PID 1632 wrote to memory of 324	1632	chargeable.exe	30
PID 1632 wrote to memory of 324	1632	chargeable.exe	30
PID 1632 wrote to memory of 324	1632	chargeable.exe	30
PID 1632 wrote to memory of 324	1632	chargeable.exe	30
PID 1632 wrote to memory of 324	1632	chargeable.exe	30
PID 1632 wrote to memory of 324	1632	chargeable.exe	30
PID 1632 wrote to memory of 324	1632	chargeable.exe	30
PID 324 wrote to memory of 1160	324	chargeable.exe	31
PID 324 wrote to memory of 1160	324	chargeable.exe	31
PID 324 wrote to memory of 1160	324	chargeable.exe	31
PID 324 wrote to memory of 1160	324	chargeable.exe	31

C:\Users\Admin\AppData\Local\Temp\45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97.exe
"C:\Users\Admin\AppData\Local\Temp\45e774876884d29f53659c6e2962858fcb70a77902e07e44ea2b30f8c65cbf97.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1664
- 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:1632
- - 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:324
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
      4⤵
      PID:1160

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/324-5-0x0000000000400000-0x000000000040C000-memory.dmp

Download

memory/324-8-0x0000000000400000-0x000000000040C000-memory.dmp

Download

memory/324-9-0x0000000000400000-0x000000000040C000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads