njrat | 5cdc56dfe73c53516cb619f44147b0f8535ab68575a8071008ad59599d5c1cb6

Analysis

max time kernel
10s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
07-12-2024 13:25

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General

Target

SharkHack.exe
Size

3.9MB
MD5

1132637cde57bdbd23fd05694713fb94
SHA1

1625fe2acadbc9c8a400c69e1ca7e8afd97b56eb
SHA256

5cdc56dfe73c53516cb619f44147b0f8535ab68575a8071008ad59599d5c1cb6
SHA512

65bd5fdb631b33964038b972d71a4d17fa8290b3a2052fd88097e66e7a3af6fa0a7f8e1cde0ebe5867c6b5e8e923f1f6143f6f9d2dc4a0770fb785238d1f130f
SSDEEP

49152:SFnCO88whwjbAlR/6QhDEvebZVLRbjgQjzK5ppnrLn6XBSOvdsW:9hTbDzhfgQSp9LSBnvdsW

Score

10^/10

njrat discovery trojan

Malware Config

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
4056	SharkHack1.exe
5008	virus.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	virus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TASKKILL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TASKKILL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SharkHack.exe

Kills process with taskkill 2 IoCs

evasion

pid	Process
1608	TASKKILL.exe
236	TASKKILL.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe
5008	virus.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5008	virus.exe
Token: SeDebugPrivilege	236	TASKKILL.exe
Token: SeDebugPrivilege	1608	TASKKILL.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 4056	1900	SharkHack.exe	77
PID 1900 wrote to memory of 4056	1900	SharkHack.exe	77
PID 1900 wrote to memory of 5008	1900	SharkHack.exe	78
PID 1900 wrote to memory of 5008	1900	SharkHack.exe	78
PID 1900 wrote to memory of 5008	1900	SharkHack.exe	78
PID 5008 wrote to memory of 236	5008	virus.exe	79
PID 5008 wrote to memory of 236	5008	virus.exe	79
PID 5008 wrote to memory of 236	5008	virus.exe	79
PID 5008 wrote to memory of 1608	5008	virus.exe	80
PID 5008 wrote to memory of 1608	5008	virus.exe	80
PID 5008 wrote to memory of 1608	5008	virus.exe	80

C:\Users\Admin\AppData\Local\Temp\SharkHack.exe
"C:\Users\Admin\AppData\Local\Temp\SharkHack.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Users\Admin\AppData\Local\Temp\SharkHack1.exe
  "C:\Users\Admin\AppData\Local\Temp\SharkHack1.exe"
  2⤵
  - Executes dropped EXE
  PID:4056
- C:\Users\Admin\AppData\Local\Temp\virus.exe
  "C:\Users\Admin\AppData\Local\Temp\virus.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5008
- - C:\Windows\SysWOW64\TASKKILL.exe
    TASKKILL /F /IM wscript.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:236
- - C:\Windows\SysWOW64\TASKKILL.exe
    TASKKILL /F /IM cmd.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Local\Temp\SharkHack1.exe

Filesize
3.8MB

MD5
7751bb858985d66226a941ace018c503

SHA1
362db42327e8d1816ad81d5a091cefca22369905

SHA256
e657bb5a0896c58b62b928e59f68273182ee37105fb1068687dde462193e7fe4

SHA512
0bb79e1bf67853ef5138ede1d90080181432b77ba02577d186013524ad5b1fc269e0a796bc367706a309bb4217881312c94afaac6c7ce6b4013af18d438e0d87

Download Submit
C:\Users\Admin\AppData\Local\Temp\virus.exe

Filesize
65KB

MD5
fc84d53be6875a39382eea9adb353c67

SHA1
a96e17f51749b8fd32d913bf925e733149628c43

SHA256
7a65e04266f22e0d68e02c6b557d22ba08c3b89d64eb5296a91e2c45e72e4203

SHA512
2b63bf65d9aa0922a163c4aaf0d8751d366020661695a255d78b8988e55308f0f0eac75c1781f878ae57c10b1bb1eb42b18559a8c85a464effcfab14c65ac8b1

Download Submit
memory/1900-16-0x0000000000400000-0x00000000007E5000-memory.dmp

Filesize
3.9MB

Download
memory/5008-17-0x0000000074AA1000-0x0000000074AA2000-memory.dmp

Filesize
4KB

Download
memory/5008-18-0x0000000074AA0000-0x0000000075051000-memory.dmp

Filesize
5.7MB

Download
memory/5008-19-0x0000000074AA0000-0x0000000075051000-memory.dmp

Filesize
5.7MB

Download
memory/5008-20-0x0000000074AA0000-0x0000000075051000-memory.dmp

Filesize
5.7MB

Download