njrat | 00d1bc82bc637355be482a6cd2693df6710ba30868260b88dd3275cdd8696b51

Analysis

max time kernel
120s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-02-2025 01:43

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General

Target

00d1bc82bc637355be482a6cd2693df6710ba30868260b88dd3275cdd8696b51N.exe
Size

115KB
MD5

ae9bf5e79a480edb4bdabeef0a075810
SHA1

3e785040bc7ed878d818322581061bd20934b84c
SHA256

00d1bc82bc637355be482a6cd2693df6710ba30868260b88dd3275cdd8696b51
SHA512

1fa68d37a3d258bf4cc9bed0144492e501e12573616e22a8b4b36ef31abf1058ef33480264833728a371963d44f7c7f406eef22d102636687965cf416a0ba837
SSDEEP

3072:lHZ28rd2yNqfdcO6L0UQnICMce3SdJFhsz0HMib4:l1dZnQIEei3Fhsz0M

Score

10^/10

njrat hacked defense_evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

agdsagds.kro.kr:1111

Mutex

7bc5d4676f29fca15e68905e11aefcf9

Attributes

reg_key
7bc5d4676f29fca15e68905e11aefcf9
splitter
|'|'|

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2644	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7bc5d4676f29fca15e68905e11aefcf9.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7bc5d4676f29fca15e68905e11aefcf9.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
2796	server.exe

Loads dropped DLL 1 IoCs

pid	Process
2504	00d1bc82bc637355be482a6cd2693df6710ba30868260b88dd3275cdd8696b51N.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\7bc5d4676f29fca15e68905e11aefcf9 = "\"C:\\Users\\Admin\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7bc5d4676f29fca15e68905e11aefcf9 = "\"C:\\Users\\Admin\\server.exe\" .."	server.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 queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe
2796	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2796	server.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	server.exe
Token: 33	2796	server.exe
Token: SeIncBasePriorityPrivilege	2796	server.exe
Token: 33	2796	server.exe
Token: SeIncBasePriorityPrivilege	2796	server.exe
Token: 33	2796	server.exe
Token: SeIncBasePriorityPrivilege	2796	server.exe
Token: 33	2796	server.exe
Token: SeIncBasePriorityPrivilege	2796	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 2796	2504	00d1bc82bc637355be482a6cd2693df6710ba30868260b88dd3275cdd8696b51N.exe	31
PID 2504 wrote to memory of 2796	2504	00d1bc82bc637355be482a6cd2693df6710ba30868260b88dd3275cdd8696b51N.exe	31
PID 2504 wrote to memory of 2796	2504	00d1bc82bc637355be482a6cd2693df6710ba30868260b88dd3275cdd8696b51N.exe	31
PID 2796 wrote to memory of 2644	2796	server.exe	32
PID 2796 wrote to memory of 2644	2796	server.exe	32
PID 2796 wrote to memory of 2644	2796	server.exe	32

C:\Users\Admin\AppData\Local\Temp\00d1bc82bc637355be482a6cd2693df6710ba30868260b88dd3275cdd8696b51N.exe
"C:\Users\Admin\AppData\Local\Temp\00d1bc82bc637355be482a6cd2693df6710ba30868260b88dd3275cdd8696b51N.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Users\Admin\server.exe
  "C:\Users\Admin\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2796
- - C:\Windows\system32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:2644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\server.exe

Filesize
115KB

MD5
ae9bf5e79a480edb4bdabeef0a075810

SHA1
3e785040bc7ed878d818322581061bd20934b84c

SHA256
00d1bc82bc637355be482a6cd2693df6710ba30868260b88dd3275cdd8696b51

SHA512
1fa68d37a3d258bf4cc9bed0144492e501e12573616e22a8b4b36ef31abf1058ef33480264833728a371963d44f7c7f406eef22d102636687965cf416a0ba837

Download Submit
memory/2504-0-0x000007FEF569E000-0x000007FEF569F000-memory.dmp

Filesize
4KB

Download
memory/2504-1-0x000007FEF53E0000-0x000007FEF5D7D000-memory.dmp

Filesize
9.6MB

Download
memory/2504-2-0x000007FEF53E0000-0x000007FEF5D7D000-memory.dmp

Filesize
9.6MB

Download
memory/2504-3-0x0000000000300000-0x0000000000310000-memory.dmp

Filesize
64KB

Download
memory/2504-11-0x000007FEF53E0000-0x000007FEF5D7D000-memory.dmp

Filesize
9.6MB

Download
memory/2796-10-0x000007FEF53E0000-0x000007FEF5D7D000-memory.dmp

Filesize
9.6MB

Download
memory/2796-12-0x000007FEF53E0000-0x000007FEF5D7D000-memory.dmp

Filesize
9.6MB

Download
memory/2796-13-0x000007FEF53E0000-0x000007FEF5D7D000-memory.dmp

Filesize
9.6MB

Download