njrat | b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb

General

Target

b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb.exe
Size

23KB
MD5

62613fd09b9acaba8a27dd636fbfcd86
SHA1

1c3a7ef93cea4d7d3829f2f35ffb5ba60f64266a
SHA256

b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb
SHA512

23a21797c1a6a108373fb96006679e394a32e5a0e91062abe8127bbf69827415c341056455537d0a334ef7849e972a0130b300a11bffa8f79a1ad226dc69d8f5

Score

10^/10

njrat got em evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Got em

C2

drontchanging-24954.portmap.io:24954

Mutex

0f4e54c4009d96e7c18f12042dfb80d6

Attributes

reg_key
0f4e54c4009d96e7c18f12042dfb80d6
splitter
|'|'|

Signatures

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

Processes:

windows.exe

pid process

1396 windows.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
1396	windows.exe

Drops startup file 2 IoCs

Processes:

windows.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0f4e54c4009d96e7c18f12042dfb80d6.exe	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0f4e54c4009d96e7c18f12042dfb80d6.exe	windows.exe

Loads dropped DLL 1 IoCs

Processes:

b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb.exe

pid process

284 b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb.exe

pid	process
284	b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

windows.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\0f4e54c4009d96e7c18f12042dfb80d6 = "\"C:\\Users\\Admin\\AppData\\Roaming\\windows.exe\" .."	windows.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\0f4e54c4009d96e7c18f12042dfb80d6 = "\"C:\\Users\\Admin\\AppData\\Roaming\\windows.exe\" .."	windows.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 15 IoCs

Processes:

windows.exe

description	pid	process
Token: SeDebugPrivilege	1396	windows.exe
Token: 33	1396	windows.exe
Token: SeIncBasePriorityPrivilege	1396	windows.exe
Token: 33	1396	windows.exe
Token: SeIncBasePriorityPrivilege	1396	windows.exe
Token: 33	1396	windows.exe
Token: SeIncBasePriorityPrivilege	1396	windows.exe
Token: 33	1396	windows.exe
Token: SeIncBasePriorityPrivilege	1396	windows.exe
Token: 33	1396	windows.exe
Token: SeIncBasePriorityPrivilege	1396	windows.exe
Token: 33	1396	windows.exe
Token: SeIncBasePriorityPrivilege	1396	windows.exe
Token: 33	1396	windows.exe
Token: SeIncBasePriorityPrivilege	1396	windows.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb.exewindows.exe

description	pid	process	target process
PID 284 wrote to memory of 1396	284	b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb.exe	windows.exe
PID 284 wrote to memory of 1396	284	b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb.exe	windows.exe
PID 284 wrote to memory of 1396	284	b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb.exe	windows.exe
PID 284 wrote to memory of 1396	284	b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb.exe	windows.exe
PID 1396 wrote to memory of 1744	1396	windows.exe	netsh.exe
PID 1396 wrote to memory of 1744	1396	windows.exe	netsh.exe
PID 1396 wrote to memory of 1744	1396	windows.exe	netsh.exe
PID 1396 wrote to memory of 1744	1396	windows.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb.exe
"C:\Users\Admin\AppData\Local\Temp\b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:284

C:\Users\Admin\AppData\Roaming\windows.exe
"C:\Users\Admin\AppData\Roaming\windows.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1396

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\windows.exe" "windows.exe" ENABLE
3⤵
PID:1744

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\windows.exe
Filesize
23KB

MD5
62613fd09b9acaba8a27dd636fbfcd86

SHA1
1c3a7ef93cea4d7d3829f2f35ffb5ba60f64266a

SHA256
b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb

SHA512
23a21797c1a6a108373fb96006679e394a32e5a0e91062abe8127bbf69827415c341056455537d0a334ef7849e972a0130b300a11bffa8f79a1ad226dc69d8f5

Download Submit
C:\Users\Admin\AppData\Roaming\windows.exe
Filesize
23KB

MD5
62613fd09b9acaba8a27dd636fbfcd86

SHA1
1c3a7ef93cea4d7d3829f2f35ffb5ba60f64266a

SHA256
b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb

SHA512
23a21797c1a6a108373fb96006679e394a32e5a0e91062abe8127bbf69827415c341056455537d0a334ef7849e972a0130b300a11bffa8f79a1ad226dc69d8f5

Download Submit
\Users\Admin\AppData\Roaming\windows.exe
Filesize
23KB

MD5
62613fd09b9acaba8a27dd636fbfcd86

SHA1
1c3a7ef93cea4d7d3829f2f35ffb5ba60f64266a

SHA256
b2d8f78612e7a3ec0f5aacaafa031904368b19899eeac158ed93a00bbdc243cb

SHA512
23a21797c1a6a108373fb96006679e394a32e5a0e91062abe8127bbf69827415c341056455537d0a334ef7849e972a0130b300a11bffa8f79a1ad226dc69d8f5

Download Submit
memory/284-54-0x00000000763E1000-0x00000000763E3000-memory.dmp

Filesize
8KB

Download
memory/284-55-0x0000000074660000-0x0000000074C0B000-memory.dmp

Filesize
5.7MB

Download
memory/1396-57-0x0000000000000000-mapping.dmp

Download
memory/1396-61-0x0000000074660000-0x0000000074C0B000-memory.dmp

Filesize
5.7MB

Download
memory/1744-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads