njrat | f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e

General

Target

f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exe
Size

1.1MB
MD5

6d2b7843f0e9168704d4c71108cfdc50
SHA1

3fb8ed1bc9eb790af15c1f18486ac5461a44ed71
SHA256

f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e
SHA512

56622c990c77363bf709cba7684dd484fe96b24aa2f8f68828b494d556bb73d800955fc080a9d6e24d5f4c7f3c39a11d49d2870e1f0869a6912ef36fa67df0b0

Score

10^/10

njrat coder evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

coder

C2

81.61.77.92:5553

Mutex

890f73d3282170b26075ca7917951b6e

Attributes

reg_key
890f73d3282170b26075ca7917951b6e
splitter
|'|'|

Signatures

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

Processes:

Data.exe

pid process

2036 Data.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

896 netsh.exe

pid	process
2036	Data.exe

pid	process
896	netsh.exe

Drops startup file 2 IoCs

Processes:

Data.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\890f73d3282170b26075ca7917951b6e.exe	Data.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\890f73d3282170b26075ca7917951b6e.exe	Data.exe

Loads dropped DLL 1 IoCs

Processes:

f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exe

pid process

1700 f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Data.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\890f73d3282170b26075ca7917951b6e = "\"C:\\Users\\Admin\\AppData\\Roaming\\Data.exe\" .."	Data.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\890f73d3282170b26075ca7917951b6e = "\"C:\\Users\\Admin\\AppData\\Roaming\\Data.exe\" .."	Data.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 11 IoCs

Processes:

f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exeData.exe

pid	process
1700	f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exe
1700	f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exe
2036	Data.exe
2036	Data.exe
2036	Data.exe
2036	Data.exe
2036	Data.exe
2036	Data.exe
2036	Data.exe
2036	Data.exe
2036	Data.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:

Data.exe

description	pid	process
Token: SeDebugPrivilege	2036	Data.exe
Token: 33	2036	Data.exe
Token: SeIncBasePriorityPrivilege	2036	Data.exe
Token: 33	2036	Data.exe
Token: SeIncBasePriorityPrivilege	2036	Data.exe
Token: 33	2036	Data.exe
Token: SeIncBasePriorityPrivilege	2036	Data.exe
Token: 33	2036	Data.exe
Token: SeIncBasePriorityPrivilege	2036	Data.exe
Token: 33	2036	Data.exe
Token: SeIncBasePriorityPrivilege	2036	Data.exe
Token: 33	2036	Data.exe
Token: SeIncBasePriorityPrivilege	2036	Data.exe
Token: 33	2036	Data.exe
Token: SeIncBasePriorityPrivilege	2036	Data.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exeData.exe

pid process

1700 f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exe
2036 Data.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exeData.exe

description	pid	process	target process
PID 1700 wrote to memory of 2036	1700	f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exe	Data.exe
PID 1700 wrote to memory of 2036	1700	f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exe	Data.exe
PID 1700 wrote to memory of 2036	1700	f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exe	Data.exe
PID 1700 wrote to memory of 2036	1700	f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exe	Data.exe
PID 2036 wrote to memory of 896	2036	Data.exe	netsh.exe
PID 2036 wrote to memory of 896	2036	Data.exe	netsh.exe
PID 2036 wrote to memory of 896	2036	Data.exe	netsh.exe
PID 2036 wrote to memory of 896	2036	Data.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exe
"C:\Users\Admin\AppData\Local\Temp\f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1700

C:\Users\Admin\AppData\Roaming\Data.exe
"C:\Users\Admin\AppData\Roaming\Data.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2036

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Data.exe" "Data.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:896

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\Data.exe
Filesize
1.1MB

MD5
6d2b7843f0e9168704d4c71108cfdc50

SHA1
3fb8ed1bc9eb790af15c1f18486ac5461a44ed71

SHA256
f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e

SHA512
56622c990c77363bf709cba7684dd484fe96b24aa2f8f68828b494d556bb73d800955fc080a9d6e24d5f4c7f3c39a11d49d2870e1f0869a6912ef36fa67df0b0

Download Submit
\??\c:\users\admin\appdata\roaming\data.exe
Filesize
1.1MB

MD5
6d2b7843f0e9168704d4c71108cfdc50

SHA1
3fb8ed1bc9eb790af15c1f18486ac5461a44ed71

SHA256
f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e

SHA512
56622c990c77363bf709cba7684dd484fe96b24aa2f8f68828b494d556bb73d800955fc080a9d6e24d5f4c7f3c39a11d49d2870e1f0869a6912ef36fa67df0b0

Download Submit
\Users\Admin\AppData\Roaming\Data.exe
Filesize
1.1MB

MD5
6d2b7843f0e9168704d4c71108cfdc50

SHA1
3fb8ed1bc9eb790af15c1f18486ac5461a44ed71

SHA256
f2efdb91127d45b051573b56d5390401a0067eb015f2db95a65563dea235555e

SHA512
56622c990c77363bf709cba7684dd484fe96b24aa2f8f68828b494d556bb73d800955fc080a9d6e24d5f4c7f3c39a11d49d2870e1f0869a6912ef36fa67df0b0

Download Submit
memory/896-66-0x0000000000000000-mapping.dmp

Download
memory/1700-54-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/1700-55-0x00000000003D0000-0x000000000074E000-memory.dmp

Filesize
3.5MB

Download
memory/1700-56-0x00000000003D0000-0x000000000074E000-memory.dmp

Filesize
3.5MB

Download
memory/1700-57-0x0000000000390000-0x000000000039A000-memory.dmp

Filesize
40KB

Download
memory/1700-65-0x00000000003D0000-0x000000000074E000-memory.dmp

Filesize
3.5MB

Download
memory/2036-59-0x0000000000000000-mapping.dmp

Download
memory/2036-63-0x00000000010C0000-0x000000000143E000-memory.dmp

Filesize
3.5MB

Download
memory/2036-64-0x00000000010C0000-0x000000000143E000-memory.dmp

Filesize
3.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads