njrat | 76354e50aa55b4a1efd83ea4f5bca558ce8a2b9c341c680c58f0b1a9b5760985

General

Target

JaffaCakes118_5538d02f060edbf52fcf38cd20a1c460.exe
Size

86KB
MD5

5538d02f060edbf52fcf38cd20a1c460
SHA1

f166ef7130760e02a62d19fba8e347324606354c
SHA256

76354e50aa55b4a1efd83ea4f5bca558ce8a2b9c341c680c58f0b1a9b5760985
SHA512

9fd315f1ce077993b6960decf6160a24f25a5805daaf550ed1ab2799bf73fe00945ffd03140088ad7e073e3893b5f45852e69f164bdf8b270c3d48936b803cfd
SSDEEP

1536:fgWyZQ/8z8F5PdH4CHvju769//4WDpQDDQFgUr1BY0gQLXCCuDqw3Mi69gNRcXTW:xyZQUz8F5VfrrVQPQFgUxO0xXCCumw3d

Score

10^/10

njrat flux evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Flux

C2

bnl-hacker.no-ip.biz:1177

Mutex

8b72dd1e0d0456eb0f83fda44e259b5e

Attributes

reg_key
8b72dd1e0d0456eb0f83fda44e259b5e
splitter
|'|'|

Signatures

Njrat family
njrat
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
2880	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2516	Flux.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\8b72dd1e0d0456eb0f83fda44e259b5e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Flux.exe\" .."	Flux.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8b72dd1e0d0456eb0f83fda44e259b5e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Flux.exe\" .."	Flux.exe

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\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe
Token: 33	2516	Flux.exe
Token: SeIncBasePriorityPrivilege	2516	Flux.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2516	2528	JaffaCakes118_5538d02f060edbf52fcf38cd20a1c460.exe	31
PID 2528 wrote to memory of 2516	2528	JaffaCakes118_5538d02f060edbf52fcf38cd20a1c460.exe	31
PID 2528 wrote to memory of 2516	2528	JaffaCakes118_5538d02f060edbf52fcf38cd20a1c460.exe	31
PID 2516 wrote to memory of 2880	2516	Flux.exe	32
PID 2516 wrote to memory of 2880	2516	Flux.exe	32
PID 2516 wrote to memory of 2880	2516	Flux.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5538d02f060edbf52fcf38cd20a1c460.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5538d02f060edbf52fcf38cd20a1c460.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Local\Temp\Flux.exe
  "C:\Users\Admin\AppData\Local\Temp\Flux.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Windows\system32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Flux.exe" "Flux.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:2880

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Flux.exe

Filesize
86KB

MD5
5538d02f060edbf52fcf38cd20a1c460

SHA1
f166ef7130760e02a62d19fba8e347324606354c

SHA256
76354e50aa55b4a1efd83ea4f5bca558ce8a2b9c341c680c58f0b1a9b5760985

SHA512
9fd315f1ce077993b6960decf6160a24f25a5805daaf550ed1ab2799bf73fe00945ffd03140088ad7e073e3893b5f45852e69f164bdf8b270c3d48936b803cfd

Download Submit
memory/2516-12-0x00000000012E0000-0x00000000012FC000-memory.dmp

Filesize
112KB

Download
memory/2516-14-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download
memory/2516-15-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download
memory/2528-0-0x000007FEF5B63000-0x000007FEF5B64000-memory.dmp

Filesize
4KB

Download
memory/2528-1-0x00000000013E0000-0x00000000013FC000-memory.dmp

Filesize
112KB

Download
memory/2528-2-0x00000000001C0000-0x00000000001CA000-memory.dmp

Filesize
40KB

Download
memory/2528-3-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download
memory/2528-4-0x00000000001E0000-0x00000000001EE000-memory.dmp

Filesize
56KB

Download
memory/2528-5-0x00000000001F0000-0x00000000001F8000-memory.dmp

Filesize
32KB

Download
memory/2528-6-0x0000000000200000-0x000000000020C000-memory.dmp

Filesize
48KB

Download
memory/2528-13-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads