njrat | e890608a4cc37e0c648574caa821053c427732ba0afc2eaf432b635709d0d791

Analysis

max time kernel
149s
max time network
145s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
05-01-2025 18:26

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General

Target

JaffaCakes118_b68bfc79f67b93e3db137eb63f31071e.exe
Size

37KB
MD5

b68bfc79f67b93e3db137eb63f31071e
SHA1

e6252d84c7135bd5749529cb1f412aa2768a6203
SHA256

e890608a4cc37e0c648574caa821053c427732ba0afc2eaf432b635709d0d791
SHA512

8990b22c7e23db28d9217f7be96cad890bbd0ad1b32ae98e4b5810c2ad7ae84df46c124423b0cc9d6c92436fbd424e5b3b2444d2275a3b1f5b3059ce90b16ebc
SSDEEP

384:sk7pyEithPJWtckUy8fFMfPke9PEJYrAF+rMRTyN/0L+EcoinblneHQM3epzXQN5:T+zkX8fFME4EurM+rMRa8NuCBt

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

185.11.83.58:8080

Mutex

42884113853c24691f6976d8ae78b82d

Attributes

reg_key
42884113853c24691f6976d8ae78b82d
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
2488	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2104	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
2188	JaffaCakes118_b68bfc79f67b93e3db137eb63f31071e.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\42884113853c24691f6976d8ae78b82d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\42884113853c24691f6976d8ae78b82d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .."	svchost.exe

Drops autorun.inf file 1 TTPs 5 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File created	C:\autorun.inf	svchost.exe
File opened for modification	C:\autorun.inf	svchost.exe
File created	D:\autorun.inf	svchost.exe
File created	F:\autorun.inf	svchost.exe
File opened for modification	F:\autorun.inf	svchost.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\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b68bfc79f67b93e3db137eb63f31071e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2808	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2104	svchost.exe
2104	svchost.exe
2104	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2104	svchost.exe

Suspicious use of AdjustPrivilegeToken 36 IoCs

description	pid	Process
Token: SeDebugPrivilege	2104	svchost.exe
Token: SeDebugPrivilege	2808	taskkill.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe
Token: 33	2104	svchost.exe
Token: SeIncBasePriorityPrivilege	2104	svchost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 2104	2188	JaffaCakes118_b68bfc79f67b93e3db137eb63f31071e.exe	31
PID 2188 wrote to memory of 2104	2188	JaffaCakes118_b68bfc79f67b93e3db137eb63f31071e.exe	31
PID 2188 wrote to memory of 2104	2188	JaffaCakes118_b68bfc79f67b93e3db137eb63f31071e.exe	31
PID 2188 wrote to memory of 2104	2188	JaffaCakes118_b68bfc79f67b93e3db137eb63f31071e.exe	31
PID 2104 wrote to memory of 2488	2104	svchost.exe	32
PID 2104 wrote to memory of 2488	2104	svchost.exe	32
PID 2104 wrote to memory of 2488	2104	svchost.exe	32
PID 2104 wrote to memory of 2488	2104	svchost.exe	32
PID 2104 wrote to memory of 2808	2104	svchost.exe	33
PID 2104 wrote to memory of 2808	2104	svchost.exe	33
PID 2104 wrote to memory of 2808	2104	svchost.exe	33
PID 2104 wrote to memory of 2808	2104	svchost.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b68bfc79f67b93e3db137eb63f31071e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b68bfc79f67b93e3db137eb63f31071e.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops autorun.inf file
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2104
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2488
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /F /IM Explorer.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

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

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

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

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
37KB

MD5
b68bfc79f67b93e3db137eb63f31071e

SHA1
e6252d84c7135bd5749529cb1f412aa2768a6203

SHA256
e890608a4cc37e0c648574caa821053c427732ba0afc2eaf432b635709d0d791

SHA512
8990b22c7e23db28d9217f7be96cad890bbd0ad1b32ae98e4b5810c2ad7ae84df46c124423b0cc9d6c92436fbd424e5b3b2444d2275a3b1f5b3059ce90b16ebc

Download Submit
memory/2104-10-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2104-13-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2104-22-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2104-23-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2104-24-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2188-0-0x00000000748D1000-0x00000000748D2000-memory.dmp

Filesize
4KB

Download
memory/2188-1-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2188-2-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2188-11-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2188-12-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download