njrat | 50d9e490042d226bfaeef0b39c7903d4e166803fd743f6e6a7a6c2aaadfd933c

Analysis

max time kernel
149s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-09-2024 23:55

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General

Target

Rekt/Rekt/33333333333.exe
Size

5.6MB
MD5

054bf72f469f8ab9aa22bbd0ad61921a
SHA1

e676cc65e9610c628cbd3a542f5f4c6e58132146
SHA256

bbd286a15e181385091572031936857e40217bfc8e0e0ae1ca9f5ac8aa2614e8
SHA512

1b735b8a2b00efb816249ba83c9d1f6d63423e21ff32310eab6b7351da99324c659646166e21636305e2509dc3be2813c1c4329e05d4b26bdbb5d5965c1b1e7b
SSDEEP

98304:Jz14DaUCyCWUartDr8Jmk4mUJF24dl8asICU/pw7r+UNgDHmsE2V02S4h:H4fwert/3JmscksINK7r+U6zmTu

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

godsechf.chickenkiller.com:5556

Mutex

e197faddd5376f8214ee6bd8f0245c39

Attributes

reg_key
e197faddd5376f8214ee6bd8f0245c39
splitter
|'|'|

Signatures

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
2696	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
1984	p3gfme3b.exe
2992	umjsidpe.exe

Loads dropped DLL 7 IoCs

pid	Process
2340	33333333333.exe
2340	33333333333.exe
824	WerFault.exe
824	WerFault.exe
824	WerFault.exe
824	WerFault.exe
824	WerFault.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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
824	1984	WerFault.exe	30

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	33333333333.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	umjsidpe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	p3gfme3b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe
Token: 33	2992	umjsidpe.exe
Token: SeIncBasePriorityPrivilege	2992	umjsidpe.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 1984	2340	33333333333.exe	30
PID 2340 wrote to memory of 1984	2340	33333333333.exe	30
PID 2340 wrote to memory of 1984	2340	33333333333.exe	30
PID 2340 wrote to memory of 1984	2340	33333333333.exe	30
PID 2340 wrote to memory of 2992	2340	33333333333.exe	31
PID 2340 wrote to memory of 2992	2340	33333333333.exe	31
PID 2340 wrote to memory of 2992	2340	33333333333.exe	31
PID 2340 wrote to memory of 2992	2340	33333333333.exe	31
PID 1984 wrote to memory of 824	1984	p3gfme3b.exe	33
PID 1984 wrote to memory of 824	1984	p3gfme3b.exe	33
PID 1984 wrote to memory of 824	1984	p3gfme3b.exe	33
PID 1984 wrote to memory of 824	1984	p3gfme3b.exe	33
PID 2992 wrote to memory of 2696	2992	umjsidpe.exe	34
PID 2992 wrote to memory of 2696	2992	umjsidpe.exe	34
PID 2992 wrote to memory of 2696	2992	umjsidpe.exe	34
PID 2992 wrote to memory of 2696	2992	umjsidpe.exe	34

C:\Users\Admin\AppData\Local\Temp\Rekt\Rekt\33333333333.exe
"C:\Users\Admin\AppData\Local\Temp\Rekt\Rekt\33333333333.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\p3gfme3b.exe
  "C:\Users\Admin\AppData\Local\Temp\p3gfme3b.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1984
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1984 -s 540
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:824
- C:\Users\Admin\AppData\Local\Temp\umjsidpe.exe
  "C:\Users\Admin\AppData\Local\Temp\umjsidpe.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2992
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\umjsidpe.exe" "umjsidpe.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2696

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

\Users\Admin\AppData\Local\Temp\p3gfme3b.exe

Filesize
5.6MB

MD5
5f550a12065b23d985fec1f32c6f78a2

SHA1
2092caac12f23081a89d6aed70722606ab32fcee

SHA256
6692e62af43ebdba8e2fa35aa2a4bb0faf43658a1ba6892d6afd7a7d9ac550ba

SHA512
93cd04a3b1fcb44b1fda84a0dc87049ce4d57df1876754bb968cd18ba36264da97b0c2e7bc19969d4dd5c28a578f9f65086b9e844d53c6f591f5632af07c15f5

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

Filesize
23KB

MD5
3bde29a049e0cff5daf73679f8f66130

SHA1
654b0bddaca82e7cc5a6d8f218738cc1cc818647

SHA256
4adff9119d079e3bedf5c25851865667d22db9331207c55dad7abae3804afd67

SHA512
dfb36abbbfe92930a1ab86a8eeadd6802c40a9b8f5620e0b9a825c18bf02ca33325a5a13a35d39665eeae08a8a57e116008fd8331dc17973e98348864767e606

Download Submit
memory/1984-20-0x0000000000FC0000-0x000000000155E000-memory.dmp

Filesize
5.6MB

Download
memory/1984-21-0x00000000724C0000-0x0000000072540000-memory.dmp

Filesize
512KB

Download
memory/2340-0-0x0000000074841000-0x0000000074842000-memory.dmp

Filesize
4KB

Download
memory/2340-1-0x0000000074840000-0x0000000074DEB000-memory.dmp

Filesize
5.7MB

Download
memory/2340-2-0x0000000074840000-0x0000000074DEB000-memory.dmp

Filesize
5.7MB

Download
memory/2340-17-0x0000000074840000-0x0000000074DEB000-memory.dmp

Filesize
5.7MB

Download
memory/2992-18-0x0000000074840000-0x0000000074DEB000-memory.dmp

Filesize
5.7MB

Download
memory/2992-19-0x0000000074840000-0x0000000074DEB000-memory.dmp

Filesize
5.7MB

Download
memory/2992-27-0x0000000074840000-0x0000000074DEB000-memory.dmp

Filesize
5.7MB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads