njrat | e8aa1d569976cfe238848da7f84e6ecc042f7864d9de6533988d6777d334ade5

General

Target

S004-3664565-pdf.exe
Size

298KB
MD5

47dc4ca4a458ec3b47e4c73311f39b98
SHA1

0dd7495d2900aef8c03fe3e09eef0fa758619c9b
SHA256

e8aa1d569976cfe238848da7f84e6ecc042f7864d9de6533988d6777d334ade5
SHA512

7e0772feea9f8a7860be3b80625533ec93d7ec7e84b03b8c651d56e6b0e9983e967c2c30b80fcac79962053073adf74f127a91b68e2eb235224c4a429fe1c71b

Score

10^/10

njrat 2021$$$agilenet 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

1616 AddInProcess32.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
1616	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:

S004-3664565-pdf.exe

pid process

1608 S004-3664565-pdf.exe

pid	process
1608	S004-3664565-pdf.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral1/memory/1608-64-0x0000000000690000-0x00000000006B1000-memory.dmp	agile_net

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\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\0ef5de3f5b1fb89677ba03e41fa0a05a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\AddInProcess32.exe\" .."	AddInProcess32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\0ef5de3f5b1fb89677ba03e41fa0a05a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\AddInProcess32.exe\" .."	AddInProcess32.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

S004-3664565-pdf.exe

description pid process target process

PID 1608 set thread context of 1616 1608 S004-3664565-pdf.exe AddInProcess32.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

S004-3664565-pdf.exe

pid process

1608 S004-3664565-pdf.exe
1608 S004-3664565-pdf.exe

description	pid	process	target process
PID 1608 set thread context of 1616	1608	S004-3664565-pdf.exe	AddInProcess32.exe

pid	process
1608	S004-3664565-pdf.exe
1608	S004-3664565-pdf.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

S004-3664565-pdf.exeAddInProcess32.exe

description	pid	process
Token: SeDebugPrivilege	1608	S004-3664565-pdf.exe
Token: SeDebugPrivilege	1616	AddInProcess32.exe
Token: 33	1616	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1616	AddInProcess32.exe
Token: 33	1616	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1616	AddInProcess32.exe
Token: 33	1616	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1616	AddInProcess32.exe
Token: 33	1616	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1616	AddInProcess32.exe
Token: 33	1616	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1616	AddInProcess32.exe
Token: 33	1616	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1616	AddInProcess32.exe
Token: 33	1616	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1616	AddInProcess32.exe
Token: 33	1616	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1616	AddInProcess32.exe
Token: 33	1616	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1616	AddInProcess32.exe
Token: 33	1616	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1616	AddInProcess32.exe
Token: 33	1616	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	1616	AddInProcess32.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

S004-3664565-pdf.exeAddInProcess32.exe

description	pid	process	target process
PID 1608 wrote to memory of 1616	1608	S004-3664565-pdf.exe	AddInProcess32.exe
PID 1608 wrote to memory of 1616	1608	S004-3664565-pdf.exe	AddInProcess32.exe
PID 1608 wrote to memory of 1616	1608	S004-3664565-pdf.exe	AddInProcess32.exe
PID 1608 wrote to memory of 1616	1608	S004-3664565-pdf.exe	AddInProcess32.exe
PID 1608 wrote to memory of 1616	1608	S004-3664565-pdf.exe	AddInProcess32.exe
PID 1608 wrote to memory of 1616	1608	S004-3664565-pdf.exe	AddInProcess32.exe
PID 1608 wrote to memory of 1616	1608	S004-3664565-pdf.exe	AddInProcess32.exe
PID 1608 wrote to memory of 1616	1608	S004-3664565-pdf.exe	AddInProcess32.exe
PID 1616 wrote to memory of 1652	1616	AddInProcess32.exe	netsh.exe
PID 1616 wrote to memory of 1652	1616	AddInProcess32.exe	netsh.exe
PID 1616 wrote to memory of 1652	1616	AddInProcess32.exe	netsh.exe
PID 1616 wrote to memory of 1652	1616	AddInProcess32.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\S004-3664565-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\S004-3664565-pdf.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1608

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:1616

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe" "AddInProcess32.exe" ENABLE
3⤵
PID:1652

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

Replay Monitor

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Downloads

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

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
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

Download Submit
memory/1608-65-0x00000000048F1000-0x00000000048F2000-memory.dmp

Filesize
4KB

Download
memory/1608-66-0x00000000007A0000-0x00000000007AB000-memory.dmp

Filesize
44KB

Download
memory/1608-67-0x0000000000D00000-0x0000000000D01000-memory.dmp

Filesize
4KB

Download
memory/1608-60-0x0000000000F00000-0x0000000000F01000-memory.dmp

Filesize
4KB

Download
memory/1608-64-0x0000000000690000-0x00000000006B1000-memory.dmp

Filesize
132KB

Download
memory/1608-62-0x00000000048F0000-0x00000000048F1000-memory.dmp

Filesize
4KB

Download
memory/1616-69-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1616-70-0x000000000040747E-mapping.dmp

Download
memory/1616-73-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1616-77-0x0000000004E70000-0x0000000004E71000-memory.dmp

Filesize
4KB

Download
memory/1652-75-0x0000000000000000-mapping.dmp

Download
memory/1652-76-0x0000000075801000-0x0000000075803000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads