njrat | 41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b

General

Target
41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b.exe
Size 98KB
Sample201109-cdfpqs2j4n
SHA256 41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b
MD5 f794d8a8fafb2c7e68da1961030b2fbc
SHA1 ab5531bc63c65d3cefa98b407221b655dd48a90e
SHA512 7bb6cfe50e6a6e4c082823c50ca2407be2a360a0e1df0f4bbd6c5518dfaf14b5f8b66a7576c43f2005b629bd13fa835137458a6ca89f71bd72458ae1c3db3832
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
1140	chargeable.exe
316	chargeable.exe

Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

Loads dropped DLL 2 IoCs

pid	Process
760	41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b.exe
760	41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b.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"	41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b.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\\41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b.exe"	41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1140 set thread context of 316	1140	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 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe
Token: 33	316	chargeable.exe
Token: SeIncBasePriorityPrivilege	316	chargeable.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 760 wrote to memory of 1140	760	41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b.exe	29
PID 760 wrote to memory of 1140	760	41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b.exe	29
PID 760 wrote to memory of 1140	760	41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b.exe	29
PID 760 wrote to memory of 1140	760	41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b.exe	29
PID 1140 wrote to memory of 316	1140	chargeable.exe	30
PID 1140 wrote to memory of 316	1140	chargeable.exe	30
PID 1140 wrote to memory of 316	1140	chargeable.exe	30
PID 1140 wrote to memory of 316	1140	chargeable.exe	30
PID 1140 wrote to memory of 316	1140	chargeable.exe	30
PID 1140 wrote to memory of 316	1140	chargeable.exe	30
PID 1140 wrote to memory of 316	1140	chargeable.exe	30
PID 1140 wrote to memory of 316	1140	chargeable.exe	30
PID 1140 wrote to memory of 316	1140	chargeable.exe	30
PID 316 wrote to memory of 560	316	chargeable.exe	31
PID 316 wrote to memory of 560	316	chargeable.exe	31
PID 316 wrote to memory of 560	316	chargeable.exe	31
PID 316 wrote to memory of 560	316	chargeable.exe	31

C:\Users\Admin\AppData\Local\Temp\41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b.exe
"C:\Users\Admin\AppData\Local\Temp\41372f3f369d6be620fd69cb01d60a6fd28c9094e6ce647a0abe941f4b79010b.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:760
- 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:1140
- - 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:316
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
      4⤵
      PID:560

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/316-5-0x0000000000400000-0x000000000040C000-memory.dmp

Download

memory/316-8-0x0000000000400000-0x000000000040C000-memory.dmp

Download

memory/316-9-0x0000000000400000-0x000000000040C000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads