Analysis Overview
SHA256
35b46563f4d1ef02e7e2a315df8bbf0f8c2e49803856af0cf1418ea19fba58cf
Threat Level: Known bad
The file start.bat was found to be: Known bad.
Malicious Activity Summary
njRAT/Bladabindi
Njrat family
Remcos
Modifies Windows Firewall
Executes dropped EXE
Checks computer location settings
Drops startup file
Loads dropped DLL
Drops autorun.inf file
Drops file in System32 directory
Drops file in Program Files directory
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Runs ping.exe
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-26 18:22
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-26 18:22
Reported
2024-01-26 18:25
Platform
win7-20231129-en
Max time kernel
134s
Max time network
142s
Command Line
Signatures
Remcos
njRAT/Bladabindi
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| 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\60742add55fe12a61a5fe6a3cf32e5c0Windows 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\60742add55fe12a61a5fe6a3cf32e5c0Windows 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 |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | N/A |
Drops autorun.inf file
| Description | Indicator | Process | Target |
| File opened for modification | F:\autorun.inf | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
| 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 |
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
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.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
| Description | Indicator | Process | Target |
| PID 2088 wrote to memory of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | C:\Users\Admin\AppData\Local\Temp\server.exe |
| PID 2088 wrote to memory of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | C:\Users\Admin\AppData\Local\Temp\server.exe |
| PID 2088 wrote to memory of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | C:\Users\Admin\AppData\Local\Temp\server.exe |
| PID 2088 wrote to memory of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | C:\Users\Admin\AppData\Local\Temp\server.exe |
| PID 3056 wrote to memory of 2736 | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 3056 wrote to memory of 2736 | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 3056 wrote to memory of 2736 | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 3056 wrote to memory of 2736 | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\start.exe
"C:\Users\Admin\AppData\Local\Temp\start.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:\Users\Admin\AppData\Local\Temp\tmp312E.tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp312E.tmp.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
C:\Windows\SysWOW64\PING.EXE
PING 127.0.0.1 -n 2
C:\Users\Admin\AppData\Local\Temp\Sczbl.bat
"C:\Users\Admin\AppData\Local\Temp\Sczbl.bat"
C:\Users\Admin\AppData\Local\Temp\Gebrrr.exe
"C:\Users\Admin\AppData\Local\Temp\Gebrrr.exe"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\remcos\remcos.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | dead-reviewer.gl.at.ply.gg | udp |
| US | 147.185.221.17:60161 | dead-reviewer.gl.at.ply.gg | tcp |
| US | 147.185.221.17:60161 | dead-reviewer.gl.at.ply.gg | tcp |
| US | 147.185.221.17:60161 | dead-reviewer.gl.at.ply.gg | tcp |
| US | 147.185.221.17:60161 | dead-reviewer.gl.at.ply.gg | tcp |
| US | 147.185.221.17:60161 | dead-reviewer.gl.at.ply.gg | tcp |
Files
memory/2088-0-0x0000000074CB0000-0x000000007525B000-memory.dmp
memory/2088-1-0x0000000074CB0000-0x000000007525B000-memory.dmp
memory/2088-2-0x00000000006E0000-0x0000000000720000-memory.dmp
\Users\Admin\AppData\Local\Temp\server.exe
| MD5 | 937286297fbc003e6a69fdc0f02ce8b0 |
| SHA1 | 2ebd595bbb357264649f17f8b066941f05befefb |
| SHA256 | 35b46563f4d1ef02e7e2a315df8bbf0f8c2e49803856af0cf1418ea19fba58cf |
| SHA512 | 9c26792ef5102c7215afae12264e2eca6c2a0f9ed67d9b84918b720f4ca81b5fa2cdb59a28f4089e25abb93243a3d90e98d45dda9862286e2e074708eaf405f4 |
memory/3056-15-0x0000000074CB0000-0x000000007525B000-memory.dmp
memory/3056-16-0x00000000006D0000-0x0000000000710000-memory.dmp
memory/2088-14-0x0000000074CB0000-0x000000007525B000-memory.dmp
C:\Users\Admin\AppData\Roaming\app
| MD5 | 5014379cf5fa31db8a73d68d6353a145 |
| SHA1 | 2a1a5138e8c9e7547caae1c9fb223afbf714ed00 |
| SHA256 | 538b830838cbf62e6ce267b48e2eb165030686e5b6317f0b1e9205a3e08c73b8 |
| SHA512 | 5091a16ef7730449601a70b5ef5512a93c98c76beb8cfee1adc9d39780c49b1d712e764720b04e44e18c7b08633c5d453793462c18dc6bef14d82bf69892e18f |
memory/3056-17-0x0000000074CB0000-0x000000007525B000-memory.dmp
memory/3056-56-0x00000000006D0000-0x0000000000710000-memory.dmp
memory/3056-55-0x0000000074CB0000-0x000000007525B000-memory.dmp
memory/3056-57-0x0000000074CB0000-0x000000007525B000-memory.dmp
\Users\Admin\AppData\Local\Temp\tmp312E.tmp.exe
| MD5 | 81933ce5ca9beb8efb6c431bc6505361 |
| SHA1 | 7f88cc2b8e40a2f485f9062fc8bba4ac2793c20a |
| SHA256 | ae4803897d99ebbce5ef7bb65155c70aa8496188c769f9b5829aee8d62ec8d82 |
| SHA512 | debad62cb7928bafc1aebf84933fe64afe7dfea06ef01588509ec7b4283a4a07eed584f40e28e40c626295c3b357b469397a664e65b90cf04d530531daddd4a8 |
memory/2324-64-0x0000000000980000-0x00000000009AA000-memory.dmp
memory/2324-65-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp
memory/2324-66-0x000000001A970000-0x000000001A9F0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Sczbl.bat
| MD5 | a2678bbd0eace916ffeb692085da3ce3 |
| SHA1 | 4962672978e14a77eddc7992296faa88f68cfc0e |
| SHA256 | 0d1e495ca174082e5f51835d1fab22a9a664e83dd06cbd6670617cbb1c30a456 |
| SHA512 | 8f773d8bf5389953d886074f9da65e7114479d05e63f1f60da66db89381e06d5c9e8780d03131d89ffe01c1be5daf5c020fa201ded7048d70c15f9261752d861 |
memory/1268-96-0x0000000074CB0000-0x000000007525B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\install.bat
| MD5 | 76c1687d97dfdbcea62ef1490bec5001 |
| SHA1 | 5f4d1aeafa7d840cde67b76f97416dd68efd1bed |
| SHA256 | 79f04ea049979ffd2232c459fdd57fae97a5255aea9b4a2c7dce7ead856f37a4 |
| SHA512 | da250f0628632a644f159d818a82a8b9cca8224e46843bddbe0f6f9c32a2d04f7736a620af49ab6d77616317ca7d68285e60043965fe86c03d940835bd30a925 |
memory/1268-95-0x0000000000450000-0x0000000000490000-memory.dmp
memory/2324-87-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp
memory/1268-86-0x0000000074CB0000-0x000000007525B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Gebrrr.exe
| MD5 | f5b9830d4d8d3e46ac5cf7c0203cecf7 |
| SHA1 | 0fee86b7327672435801d5da3c453326398fb1c9 |
| SHA256 | 9b9b86d55832e34a68a293d5ec6deb8a8835d45410e28969cb60856351c834b6 |
| SHA512 | e343de8d73437acdce8eb1f5149e4e6cb1e700eaad51f7ef219b6bb4117b1b8aacf7f6290c9dd4b41c18103ee29ee65b010af1a53f5db73b66ca911c760462aa |
memory/1268-100-0x0000000074CB0000-0x000000007525B000-memory.dmp
memory/1504-105-0x0000000000400000-0x0000000000417000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-26 18:22
Reported
2024-01-26 18:25
Platform
win10v2004-20231222-en
Max time kernel
150s
Max time network
135s
Command Line
Signatures
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| 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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\start.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\60742add55fe12a61a5fe6a3cf32e5c0Windows 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\60742add55fe12a61a5fe6a3cf32e5c0Windows 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 |
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
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
| Description | Indicator | Process | Target |
| PID 1776 wrote to memory of 2072 | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | C:\Users\Admin\AppData\Local\Temp\server.exe |
| PID 1776 wrote to memory of 2072 | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | C:\Users\Admin\AppData\Local\Temp\server.exe |
| PID 1776 wrote to memory of 2072 | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | C:\Users\Admin\AppData\Local\Temp\server.exe |
| PID 2072 wrote to memory of 4064 | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 2072 wrote to memory of 4064 | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | C:\Windows\SysWOW64\netsh.exe |
| PID 2072 wrote to memory of 4064 | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | C:\Windows\SysWOW64\netsh.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\start.exe
"C:\Users\Admin\AppData\Local\Temp\start.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
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | dead-reviewer.gl.at.ply.gg | udp |
| US | 147.185.221.17:60161 | dead-reviewer.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 17.221.185.147.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 147.185.221.17:60161 | dead-reviewer.gl.at.ply.gg | tcp |
| US | 147.185.221.17:60161 | dead-reviewer.gl.at.ply.gg | tcp |
| US | 147.185.221.17:60161 | dead-reviewer.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 147.185.221.17:60161 | dead-reviewer.gl.at.ply.gg | tcp |
| 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 |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
Files
memory/1776-0-0x0000000075500000-0x0000000075AB1000-memory.dmp
memory/1776-2-0x00000000019B0000-0x00000000019C0000-memory.dmp
memory/1776-1-0x0000000075500000-0x0000000075AB1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\server.exe
| MD5 | 937286297fbc003e6a69fdc0f02ce8b0 |
| SHA1 | 2ebd595bbb357264649f17f8b066941f05befefb |
| SHA256 | 35b46563f4d1ef02e7e2a315df8bbf0f8c2e49803856af0cf1418ea19fba58cf |
| SHA512 | 9c26792ef5102c7215afae12264e2eca6c2a0f9ed67d9b84918b720f4ca81b5fa2cdb59a28f4089e25abb93243a3d90e98d45dda9862286e2e074708eaf405f4 |
memory/1776-13-0x0000000075500000-0x0000000075AB1000-memory.dmp
memory/2072-14-0x0000000075500000-0x0000000075AB1000-memory.dmp
memory/2072-15-0x0000000075500000-0x0000000075AB1000-memory.dmp
C:\Users\Admin\AppData\Roaming\app
| MD5 | 5014379cf5fa31db8a73d68d6353a145 |
| SHA1 | 2a1a5138e8c9e7547caae1c9fb223afbf714ed00 |
| SHA256 | 538b830838cbf62e6ce267b48e2eb165030686e5b6317f0b1e9205a3e08c73b8 |
| SHA512 | 5091a16ef7730449601a70b5ef5512a93c98c76beb8cfee1adc9d39780c49b1d712e764720b04e44e18c7b08633c5d453793462c18dc6bef14d82bf69892e18f |
memory/2072-53-0x00000000005D0000-0x00000000005E0000-memory.dmp
memory/2072-54-0x0000000075500000-0x0000000075AB1000-memory.dmp
memory/2072-55-0x00000000005D0000-0x00000000005E0000-memory.dmp
memory/2072-56-0x00000000005D0000-0x00000000005E0000-memory.dmp