njrat | 9f85eb5b1e7b261c9a7a1cd793badff334e84942ed652f09a0fc7d83008fe621

General

Target

c5e2d8b234f4c2b2db29eba11e18a75c.exe
Size

388KB
MD5

c5e2d8b234f4c2b2db29eba11e18a75c
SHA1

6c88462bf8c577b1a6fc304f2724491736b56be5
SHA256

9f85eb5b1e7b261c9a7a1cd793badff334e84942ed652f09a0fc7d83008fe621
SHA512

dab93f487e09c14aaed8f32814d94dfbac9fa9e1d076d730337ab3379058b0bdd012a86219146010e6060eab77b654a8815208a0d027e1cbb3b25b62876f5fa7

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

karamnaser321.ddns.net:1177

Mutex

0518517d1f621a093c3997945c521862

Attributes

reg_key
0518517d1f621a093c3997945c521862
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 2 IoCs

Processes:

LocalHqxEsTdCwp.exeserver.exe

pid process

1780 LocalHqxEsTdCwp.exe
1676 server.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
1780	LocalHqxEsTdCwp.exe
1676	server.exe

Drops startup file 2 IoCs

Processes:

server.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0518517d1f621a093c3997945c521862.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0518517d1f621a093c3997945c521862.exe	server.exe

Loads dropped DLL 1 IoCs

Processes:

LocalHqxEsTdCwp.exe

pid process

1780 LocalHqxEsTdCwp.exe

pid	process
1780	LocalHqxEsTdCwp.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\0518517d1f621a093c3997945c521862 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\0518517d1f621a093c3997945c521862 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description ioc process

File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Office loads VBA resources, possible macro or embedded object present

description	ioc	process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

736 WINWORD.EXE

pid	process
736	WINWORD.EXE

Suspicious use of AdjustPrivilegeToken 29 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe
Token: 33	1676	server.exe
Token: SeIncBasePriorityPrivilege	1676	server.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

736 WINWORD.EXE
736 WINWORD.EXE

pid	process
736	WINWORD.EXE
736	WINWORD.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

c5e2d8b234f4c2b2db29eba11e18a75c.exeLocalHqxEsTdCwp.exeWINWORD.EXEserver.exe

description	pid	process	target process
PID 1836 wrote to memory of 1780	1836	c5e2d8b234f4c2b2db29eba11e18a75c.exe	LocalHqxEsTdCwp.exe
PID 1836 wrote to memory of 1780	1836	c5e2d8b234f4c2b2db29eba11e18a75c.exe	LocalHqxEsTdCwp.exe
PID 1836 wrote to memory of 1780	1836	c5e2d8b234f4c2b2db29eba11e18a75c.exe	LocalHqxEsTdCwp.exe
PID 1836 wrote to memory of 1780	1836	c5e2d8b234f4c2b2db29eba11e18a75c.exe	LocalHqxEsTdCwp.exe
PID 1836 wrote to memory of 736	1836	c5e2d8b234f4c2b2db29eba11e18a75c.exe	WINWORD.EXE
PID 1836 wrote to memory of 736	1836	c5e2d8b234f4c2b2db29eba11e18a75c.exe	WINWORD.EXE
PID 1836 wrote to memory of 736	1836	c5e2d8b234f4c2b2db29eba11e18a75c.exe	WINWORD.EXE
PID 1836 wrote to memory of 736	1836	c5e2d8b234f4c2b2db29eba11e18a75c.exe	WINWORD.EXE
PID 1780 wrote to memory of 1676	1780	LocalHqxEsTdCwp.exe	server.exe
PID 1780 wrote to memory of 1676	1780	LocalHqxEsTdCwp.exe	server.exe
PID 1780 wrote to memory of 1676	1780	LocalHqxEsTdCwp.exe	server.exe
PID 1780 wrote to memory of 1676	1780	LocalHqxEsTdCwp.exe	server.exe
PID 736 wrote to memory of 780	736	WINWORD.EXE	splwow64.exe
PID 736 wrote to memory of 780	736	WINWORD.EXE	splwow64.exe
PID 736 wrote to memory of 780	736	WINWORD.EXE	splwow64.exe
PID 736 wrote to memory of 780	736	WINWORD.EXE	splwow64.exe
PID 1676 wrote to memory of 436	1676	server.exe	netsh.exe
PID 1676 wrote to memory of 436	1676	server.exe	netsh.exe
PID 1676 wrote to memory of 436	1676	server.exe	netsh.exe
PID 1676 wrote to memory of 436	1676	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\c5e2d8b234f4c2b2db29eba11e18a75c.exe
"C:\Users\Admin\AppData\Local\Temp\c5e2d8b234f4c2b2db29eba11e18a75c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1836

C:\Users\Admin\AppData\LocalHqxEsTdCwp.exe
"C:\Users\Admin\AppData\LocalHqxEsTdCwp.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1780

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
3⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1676

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
4⤵
PID:436

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\LocalVhJPsrdoQS.docx"
2⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:736

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
3⤵
PID:780

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

2

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\LocalHqxEsTdCwp.exe
MD5
3c5d8b82a26ebfa52a7635f815315a71

SHA1
effa029f17398bee9a9229b4bba7ce42c968f194

SHA256
40e56583b337aa5a9cd070d40ac91ed2ec18ef8744a9bdc8cf2eb91d4a62019f

SHA512
db199a6a846dacec2cd49eebdc5b6b79e26fc8266f7a7b167968240b23fdac25e678352ca4c1c5cf2c52c3f6feb429504ef23cd967376e044c742ded44b623ee

Download Submit
C:\Users\Admin\AppData\LocalHqxEsTdCwp.exe
MD5
3c5d8b82a26ebfa52a7635f815315a71

SHA1
effa029f17398bee9a9229b4bba7ce42c968f194

SHA256
40e56583b337aa5a9cd070d40ac91ed2ec18ef8744a9bdc8cf2eb91d4a62019f

SHA512
db199a6a846dacec2cd49eebdc5b6b79e26fc8266f7a7b167968240b23fdac25e678352ca4c1c5cf2c52c3f6feb429504ef23cd967376e044c742ded44b623ee

Download Submit
C:\Users\Admin\AppData\LocalVhJPsrdoQS.docx
MD5
63c814344bb5edcac76c4f829c7f1dad

SHA1
77c3bd09de67bf2e0971a34a46a37cfc592ca5df

SHA256
ddfc3ed056efa3d87bd76e49647815c92d22af8a18d41161af7577b6e3681869

SHA512
58c4c6a616f1af40c52e131c5800adf58832eb975f17c291ae3d3c8826a02fe8e41492f5f0b91bdf0127994aa993d68eb766e0c486d8971b21c7b4ab8fa41de5

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
MD5
3c5d8b82a26ebfa52a7635f815315a71

SHA1
effa029f17398bee9a9229b4bba7ce42c968f194

SHA256
40e56583b337aa5a9cd070d40ac91ed2ec18ef8744a9bdc8cf2eb91d4a62019f

SHA512
db199a6a846dacec2cd49eebdc5b6b79e26fc8266f7a7b167968240b23fdac25e678352ca4c1c5cf2c52c3f6feb429504ef23cd967376e044c742ded44b623ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
MD5
3c5d8b82a26ebfa52a7635f815315a71

SHA1
effa029f17398bee9a9229b4bba7ce42c968f194

SHA256
40e56583b337aa5a9cd070d40ac91ed2ec18ef8744a9bdc8cf2eb91d4a62019f

SHA512
db199a6a846dacec2cd49eebdc5b6b79e26fc8266f7a7b167968240b23fdac25e678352ca4c1c5cf2c52c3f6feb429504ef23cd967376e044c742ded44b623ee

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe
MD5
3c5d8b82a26ebfa52a7635f815315a71

SHA1
effa029f17398bee9a9229b4bba7ce42c968f194

SHA256
40e56583b337aa5a9cd070d40ac91ed2ec18ef8744a9bdc8cf2eb91d4a62019f

SHA512
db199a6a846dacec2cd49eebdc5b6b79e26fc8266f7a7b167968240b23fdac25e678352ca4c1c5cf2c52c3f6feb429504ef23cd967376e044c742ded44b623ee

Download Submit
memory/316-13-0x000007FEF5CD0000-0x000007FEF5F4A000-memory.dmp

Filesize
2.5MB

Download
memory/436-16-0x0000000000000000-mapping.dmp

Download
memory/736-7-0x0000000000000000-mapping.dmp

Download
memory/736-14-0x0000000005F70000-0x0000000005F71000-memory.dmp

Filesize
4KB

Download
memory/780-15-0x0000000000000000-mapping.dmp

Download
memory/1676-10-0x0000000000000000-mapping.dmp

Download
memory/1780-4-0x0000000000000000-mapping.dmp

Download
memory/1836-3-0x000007FEF5F50000-0x000007FEF68ED000-memory.dmp

Filesize
9.6MB

Download
memory/1836-2-0x000007FEF5F50000-0x000007FEF68ED000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads