njrat | 4b1cbc04c8e1b83928148304d772cbf7c55b7aaedf520720b2bf2a6a77fd34a3

General

Target

OrderRequest29032021_BituChemLtd.exe
Size

363KB
MD5

5668a086e3c47ec9cdb8c02b36fd3395
SHA1

263b69b49ad9ab8237f706f91f42ff889d939f61
SHA256

4b1cbc04c8e1b83928148304d772cbf7c55b7aaedf520720b2bf2a6a77fd34a3
SHA512

12d8b17d413cbe4fd3853f548db9984175c0d90385b2ea6b9b6ba37672ae90f31f44f33ac242654e144a54806eab08ce6b43da7581b6daf5e6a2e3decfa41c7e

Score

10^/10

njrat 2021$$$evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

2021$$$

C2

194.5.98.210:4040

Mutex

0ef5de3f5b1fb89677ba03e41fa0a05a

Attributes

reg_key
0ef5de3f5b1fb89677ba03e41fa0a05a
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

AddInProcess32.exe

pid process

1016 AddInProcess32.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
1016	AddInProcess32.exe

Drops startup file 2 IoCs

Processes:

AddInProcess32.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0ef5de3f5b1fb89677ba03e41fa0a05a.exe	AddInProcess32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0ef5de3f5b1fb89677ba03e41fa0a05a.exe	AddInProcess32.exe

Loads dropped DLL 1 IoCs

Processes:

OrderRequest29032021_BituChemLtd.exe

pid process

1728 OrderRequest29032021_BituChemLtd.exe

pid	process
1728	OrderRequest29032021_BituChemLtd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

AddInProcess32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\0ef5de3f5b1fb89677ba03e41fa0a05a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\AddInProcess32.exe\" .."	AddInProcess32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\0ef5de3f5b1fb89677ba03e41fa0a05a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\AddInProcess32.exe\" .."	AddInProcess32.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

OrderRequest29032021_BituChemLtd.exe

description pid process target process

PID 1728 set thread context of 1016 1728 OrderRequest29032021_BituChemLtd.exe AddInProcess32.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

OrderRequest29032021_BituChemLtd.exe

pid process

1728 OrderRequest29032021_BituChemLtd.exe
1728 OrderRequest29032021_BituChemLtd.exe

description	pid	process	target process
PID 1728 set thread context of 1016	1728	OrderRequest29032021_BituChemLtd.exe	AddInProcess32.exe

pid	process
1728	OrderRequest29032021_BituChemLtd.exe
1728	OrderRequest29032021_BituChemLtd.exe

Suspicious use of AdjustPrivilegeToken 26 IoCs

Processes:

OrderRequest29032021_BituChemLtd.exeAddInProcess32.exe

description	pid	process
Token: SeDebugPrivilege	1728	OrderRequest29032021_BituChemLtd.exe
Token: SeDebugPrivilege	1016	AddInProcess32.exe
Token: 33	1016	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1016	AddInProcess32.exe
Token: 33	1016	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1016	AddInProcess32.exe
Token: 33	1016	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1016	AddInProcess32.exe
Token: 33	1016	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1016	AddInProcess32.exe
Token: 33	1016	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1016	AddInProcess32.exe
Token: 33	1016	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1016	AddInProcess32.exe
Token: 33	1016	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1016	AddInProcess32.exe
Token: 33	1016	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1016	AddInProcess32.exe
Token: 33	1016	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1016	AddInProcess32.exe
Token: 33	1016	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1016	AddInProcess32.exe
Token: 33	1016	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1016	AddInProcess32.exe
Token: 33	1016	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1016	AddInProcess32.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

OrderRequest29032021_BituChemLtd.exeAddInProcess32.exe

description	pid	process	target process
PID 1728 wrote to memory of 1016	1728	OrderRequest29032021_BituChemLtd.exe	AddInProcess32.exe
PID 1728 wrote to memory of 1016	1728	OrderRequest29032021_BituChemLtd.exe	AddInProcess32.exe
PID 1728 wrote to memory of 1016	1728	OrderRequest29032021_BituChemLtd.exe	AddInProcess32.exe
PID 1728 wrote to memory of 1016	1728	OrderRequest29032021_BituChemLtd.exe	AddInProcess32.exe
PID 1728 wrote to memory of 1016	1728	OrderRequest29032021_BituChemLtd.exe	AddInProcess32.exe
PID 1728 wrote to memory of 1016	1728	OrderRequest29032021_BituChemLtd.exe	AddInProcess32.exe
PID 1728 wrote to memory of 1016	1728	OrderRequest29032021_BituChemLtd.exe	AddInProcess32.exe
PID 1728 wrote to memory of 1016	1728	OrderRequest29032021_BituChemLtd.exe	AddInProcess32.exe
PID 1016 wrote to memory of 776	1016	AddInProcess32.exe	netsh.exe
PID 1016 wrote to memory of 776	1016	AddInProcess32.exe	netsh.exe
PID 1016 wrote to memory of 776	1016	AddInProcess32.exe	netsh.exe
PID 1016 wrote to memory of 776	1016	AddInProcess32.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\OrderRequest29032021_BituChemLtd.exe
"C:\Users\Admin\AppData\Local\Temp\OrderRequest29032021_BituChemLtd.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1728

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1016

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe" "AddInProcess32.exe" ENABLE
3⤵
PID:776

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

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C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

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memory/776-20-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/776-19-0x0000000000000000-mapping.dmp

Download
memory/1016-12-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1016-13-0x000000000040747E-mapping.dmp

Download
memory/1016-16-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/1016-17-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1016-21-0x0000000004D80000-0x0000000004D81000-memory.dmp

Filesize
4KB

Download
memory/1728-9-0x00000000007A0000-0x00000000007A1000-memory.dmp

Filesize
4KB

Download
memory/1728-11-0x00000000003B1000-0x00000000003B2000-memory.dmp

Filesize
4KB

Download
memory/1728-2-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/1728-8-0x0000000000780000-0x000000000078B000-memory.dmp

Filesize
44KB

Download
memory/1728-7-0x0000000004C90000-0x0000000004CBF000-memory.dmp

Filesize
188KB

Download
memory/1728-5-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/1728-3-0x0000000000810000-0x0000000000811000-memory.dmp

Filesize
4KB

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads