njrat | e3628c6c6461b4df628ab0d7c8977d109d5906aec469ec8d1dec8372c956862a

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 03:35

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General

Target

JaffaCakes118_e3628c6c6461b4df628ab0d7c8977d109d5906aec469ec8d1dec8372c956862a.exe
Size

93KB
MD5

943ad62c5ce7252307522fba42ac0ad0
SHA1

3ab8fe8d2b082f5009f8e735e6cef24f70c81414
SHA256

e3628c6c6461b4df628ab0d7c8977d109d5906aec469ec8d1dec8372c956862a
SHA512

d831ac60fd9a62122f7021da8b8c9d9f305cfe9a4a0c08b9b0c6ec930bc22a41ce632c3b58cf3238876fb5d2152ad2ec8a272a6e9fb9145adc410a0416100114
SSDEEP

1536:xUIs5p8k2HGjTpL5HoTjEwzGi1dDkDEgS:xUgk2HGjtL5IYi1dK9

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

hakim32.ddns.net:2000

127.0.0.1:58905

Mutex

52b910a105f9b42a0c58d241595617ce

Attributes

reg_key
52b910a105f9b42a0c58d241595617ce
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
2800	netsh.exe

Drops startup file 4 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\52b910a105f9b42a0c58d241595617ceWindows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\52b910a105f9b42a0c58d241595617ceWindows Update.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
2332	server.exe

Loads dropped DLL 2 IoCs

pid	Process
1968	JaffaCakes118_e3628c6c6461b4df628ab0d7c8977d109d5906aec469ec8d1dec8372c956862a.exe
1968	JaffaCakes118_e3628c6c6461b4df628ab0d7c8977d109d5906aec469ec8d1dec8372c956862a.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 3 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_e3628c6c6461b4df628ab0d7c8977d109d5906aec469ec8d1dec8372c956862a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2332	server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2332	1968	JaffaCakes118_e3628c6c6461b4df628ab0d7c8977d109d5906aec469ec8d1dec8372c956862a.exe	30
PID 1968 wrote to memory of 2332	1968	JaffaCakes118_e3628c6c6461b4df628ab0d7c8977d109d5906aec469ec8d1dec8372c956862a.exe	30
PID 1968 wrote to memory of 2332	1968	JaffaCakes118_e3628c6c6461b4df628ab0d7c8977d109d5906aec469ec8d1dec8372c956862a.exe	30
PID 1968 wrote to memory of 2332	1968	JaffaCakes118_e3628c6c6461b4df628ab0d7c8977d109d5906aec469ec8d1dec8372c956862a.exe	30
PID 2332 wrote to memory of 2800	2332	server.exe	31
PID 2332 wrote to memory of 2800	2332	server.exe	31
PID 2332 wrote to memory of 2800	2332	server.exe	31
PID 2332 wrote to memory of 2800	2332	server.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e3628c6c6461b4df628ab0d7c8977d109d5906aec469ec8d1dec8372c956862a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e3628c6c6461b4df628ab0d7c8977d109d5906aec469ec8d1dec8372c956862a.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2332
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

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

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\app

Filesize
5B

MD5
112317d572ce0538d2d1b20d7f32170e

SHA1
c7f3714c4806b907bcff7f79aa1d1c9373b77d1e

SHA256
fd9e9a8be71786826787d6eb9aa28371d09b0515ddf0c19b082fe7bac57a88a9

SHA512
265dbebc83c74dc97770e650580b0321144990d133403bab2bc1de4618cde63dfd4fedfa56b5e4e259b510585db0f7a59042c356356c56bea3ac861d4be5337f

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe

Filesize
93KB

MD5
943ad62c5ce7252307522fba42ac0ad0

SHA1
3ab8fe8d2b082f5009f8e735e6cef24f70c81414

SHA256
e3628c6c6461b4df628ab0d7c8977d109d5906aec469ec8d1dec8372c956862a

SHA512
d831ac60fd9a62122f7021da8b8c9d9f305cfe9a4a0c08b9b0c6ec930bc22a41ce632c3b58cf3238876fb5d2152ad2ec8a272a6e9fb9145adc410a0416100114

Download Submit
memory/1968-0-0x0000000075001000-0x0000000075002000-memory.dmp

Filesize
4KB

Download
memory/1968-1-0x0000000075000000-0x00000000755AB000-memory.dmp

Filesize
5.7MB

Download
memory/1968-2-0x0000000075000000-0x00000000755AB000-memory.dmp

Filesize
5.7MB

Download
memory/1968-14-0x0000000075000000-0x00000000755AB000-memory.dmp

Filesize
5.7MB

Download
memory/2332-15-0x0000000075000000-0x00000000755AB000-memory.dmp

Filesize
5.7MB

Download
memory/2332-16-0x0000000075000000-0x00000000755AB000-memory.dmp

Filesize
5.7MB

Download
memory/2332-26-0x0000000075000000-0x00000000755AB000-memory.dmp

Filesize
5.7MB

Download