Analysis Overview
SHA256
10e012b7d6d88eba23bc9ba0ae4ee9cb299a1f688fb8ccac9c1f03319e0a7575
Threat Level: Known bad
The file tmp was found to be: Known bad.
Malicious Activity Summary
Njrat family
njRAT/Bladabindi
Disables Task Manager via registry modification
Modifies Windows Firewall
Drops startup file
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Drops autorun.inf file
Drops file in System32 directory
Drops file in Program Files directory
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-02 03:19
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-02 03:19
Reported
2024-03-02 03:22
Platform
win7-20240221-en
Max time kernel
150s
Max time network
147s
Command Line
Signatures
njRAT/Bladabindi
Disables Task Manager via registry modification
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8176ddd3532710782091cb4edeb4cd62Windows Update.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8176ddd3532710782091cb4edeb4cd62Windows Update.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
Drops autorun.inf file
| Description | Indicator | Process | Target |
| File created | C:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File opened for modification | C:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File created | F:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File opened for modification | F:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\Explower.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\Explower.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Explower.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File created | C:\Program Files (x86)\Explower.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
C:\Windows\SysWOW64\netsh.exe
netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn StUpdate /tr C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
C:\Windows\system32\taskeng.exe
taskeng.exe {BDF63E79-9063-457B-A699-D2F2CC917A2E} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
Network
| Country | Destination | Domain | Proto |
| DE | 45.142.182.104:4568 | tcp |
Files
memory/2172-0-0x0000000074000000-0x00000000745AB000-memory.dmp
memory/2172-2-0x0000000002150000-0x0000000002190000-memory.dmp
memory/2172-1-0x0000000074000000-0x00000000745AB000-memory.dmp
\Users\Admin\AppData\Local\Temp\server.exe
| MD5 | 701061274a68a71561cf2ec0a1332635 |
| SHA1 | f83da28647230602bb88461341a052bef651cbd5 |
| SHA256 | 10e012b7d6d88eba23bc9ba0ae4ee9cb299a1f688fb8ccac9c1f03319e0a7575 |
| SHA512 | ed5fc6fe6b82fefeb943c1cb20fdac7e01d43784a3cbd4fe88f7ea5cebe014609585ee354b3382ed822969f8ba453b9fa8b197acd2f110a664e6ff65e1412d7f |
memory/2172-14-0x0000000074000000-0x00000000745AB000-memory.dmp
memory/2992-15-0x0000000074000000-0x00000000745AB000-memory.dmp
memory/2992-16-0x00000000002D0000-0x0000000000310000-memory.dmp
memory/2992-17-0x0000000074000000-0x00000000745AB000-memory.dmp
C:\Users\Admin\AppData\Roaming\app
| MD5 | 931db99e42055249760280846b3d667a |
| SHA1 | 9e0e0cea04560fcbf4ded54640a65a6987943672 |
| SHA256 | 2a6b5dd5f6530a184eba6f0cced2c935751cf2c27fc3ab2e7124e76a249fdee6 |
| SHA512 | 66471125ec18e0573e51decaf82bd7e1c792bad12ee0d98697a0870d1ddc670a6407912a648f44d5500ee543f37180ddf8825c86c8f990c2f8305620cf1ea6e0 |
memory/1636-57-0x0000000074000000-0x00000000745AB000-memory.dmp
memory/1636-60-0x0000000074000000-0x00000000745AB000-memory.dmp
memory/2992-61-0x0000000074000000-0x00000000745AB000-memory.dmp
memory/2992-62-0x00000000002D0000-0x0000000000310000-memory.dmp
memory/2136-67-0x0000000074000000-0x00000000745AB000-memory.dmp
memory/2136-70-0x0000000074000000-0x00000000745AB000-memory.dmp
memory/1960-75-0x0000000074000000-0x00000000745AB000-memory.dmp
memory/1960-78-0x0000000074000000-0x00000000745AB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-02 03:19
Reported
2024-03-02 03:22
Platform
win10v2004-20240226-en
Max time kernel
150s
Max time network
149s
Command Line
Signatures
njRAT/Bladabindi
Disables Task Manager via registry modification
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8176ddd3532710782091cb4edeb4cd62Windows Update.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8176ddd3532710782091cb4edeb4cd62Windows Update.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\StUpdate.exe | N/A |
Drops autorun.inf file
| Description | Indicator | Process | Target |
| File created | C:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File opened for modification | C:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File created | F:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File opened for modification | F:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\Explower.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\Explower.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\Explower.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Explower.exe | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
C:\Windows\SysWOW64\netsh.exe
netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn StUpdate /tr C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
C:\Users\Admin\AppData\Local\Temp\StUpdate.exe
C:\Users\Admin\AppData\Local\Temp/StUpdate.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 73.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| DE | 45.142.182.104:4568 | tcp | |
| US | 8.8.8.8:53 | 104.182.142.45.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.microsoft.com | udp |
| GB | 92.123.241.137:80 | www.microsoft.com | tcp |
| GB | 92.123.241.137:80 | www.microsoft.com | tcp |
| US | 8.8.8.8:53 | 137.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
Files
memory/2312-0-0x00000000751F0000-0x00000000757A1000-memory.dmp
memory/2312-1-0x0000000001260000-0x0000000001270000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\server.exe
| MD5 | 701061274a68a71561cf2ec0a1332635 |
| SHA1 | f83da28647230602bb88461341a052bef651cbd5 |
| SHA256 | 10e012b7d6d88eba23bc9ba0ae4ee9cb299a1f688fb8ccac9c1f03319e0a7575 |
| SHA512 | ed5fc6fe6b82fefeb943c1cb20fdac7e01d43784a3cbd4fe88f7ea5cebe014609585ee354b3382ed822969f8ba453b9fa8b197acd2f110a664e6ff65e1412d7f |
memory/2312-12-0x00000000751F0000-0x00000000757A1000-memory.dmp
memory/3768-13-0x00000000751F0000-0x00000000757A1000-memory.dmp
memory/3768-14-0x00000000018C0000-0x00000000018D0000-memory.dmp
memory/3768-15-0x00000000751F0000-0x00000000757A1000-memory.dmp
C:\Users\Admin\AppData\Roaming\app
| MD5 | 931db99e42055249760280846b3d667a |
| SHA1 | 9e0e0cea04560fcbf4ded54640a65a6987943672 |
| SHA256 | 2a6b5dd5f6530a184eba6f0cced2c935751cf2c27fc3ab2e7124e76a249fdee6 |
| SHA512 | 66471125ec18e0573e51decaf82bd7e1c792bad12ee0d98697a0870d1ddc670a6407912a648f44d5500ee543f37180ddf8825c86c8f990c2f8305620cf1ea6e0 |
memory/2844-52-0x00000000751F0000-0x00000000757A1000-memory.dmp
memory/2844-53-0x00000000012B0000-0x00000000012C0000-memory.dmp
memory/2844-57-0x00000000751F0000-0x00000000757A1000-memory.dmp
memory/3768-58-0x00000000751F0000-0x00000000757A1000-memory.dmp
memory/3768-59-0x00000000751F0000-0x00000000757A1000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\StUpdate.exe.log
| MD5 | 661cab77d3b907e8057f2e689e995af3 |
| SHA1 | 5d1a0ee9c5ee7a7a90d56d00c10dc0e679bee01c |
| SHA256 | 8f27f95ad7c09f2e05d7960e78ef8cd935c1262e9657883a75d70dcb877592d2 |
| SHA512 | 2523b316bd79fed0e9b3d73f46959f3dfe270cf950f34bd9d49fe4113a2ae46d0cd00224d848bc40c0d8c55449e2dccc4b4278ba4809c0ca9ede1ac75673fc67 |
memory/3108-62-0x00000000751F0000-0x00000000757A1000-memory.dmp
memory/3108-63-0x00000000014A0000-0x00000000014B0000-memory.dmp
memory/3108-66-0x00000000751F0000-0x00000000757A1000-memory.dmp
memory/3652-68-0x00000000751F0000-0x00000000757A1000-memory.dmp
memory/3652-69-0x0000000001820000-0x0000000001830000-memory.dmp
memory/3652-70-0x00000000751F0000-0x00000000757A1000-memory.dmp
memory/3652-73-0x00000000751F0000-0x00000000757A1000-memory.dmp