Analysis Overview
SHA256
2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70
Threat Level: Known bad
The file NEAS.2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70.exe was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Asyncrat family
Async RAT payload
Async RAT payload
Executes dropped EXE
Checks computer location settings
Enumerates physical storage devices
Unsigned PE
Uses Task Scheduler COM API
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-11-15 16:37
Signatures
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Asyncrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-11-15 16:37
Reported
2023-11-15 16:40
Platform
win7-20231025-en
Max time kernel
148s
Max time network
160s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\KDFManager.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\NEAS.2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\NEAS.2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\NEAS.2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\KDFManager.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\NEAS.2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "KDFManager" /tr '"C:\Users\Admin\AppData\Roaming\KDFManager.exe"' & exit
C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp6E0F.tmp.bat""
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "KDFManager" /tr '"C:\Users\Admin\AppData\Roaming\KDFManager.exe"'
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\KDFManager.exe
"C:\Users\Admin\AppData\Roaming\KDFManager.exe"
Network
| Country | Destination | Domain | Proto |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp |
Files
memory/2136-0-0x0000000000290000-0x00000000002A6000-memory.dmp
memory/2136-1-0x000007FEF5CA0000-0x000007FEF668C000-memory.dmp
memory/2136-2-0x000000001B060000-0x000000001B0E0000-memory.dmp
memory/2136-3-0x0000000077A20000-0x0000000077BC9000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp6E0F.tmp.bat
| MD5 | f5f3fbe565bcf372a7cf93e0e9afd1ad |
| SHA1 | f3e1523f3d951319cebc998ad0f9a3b456f87ccf |
| SHA256 | 706839335cdd9a4b7cd7290b872918139584292f37073cf9925679a24b18f704 |
| SHA512 | b997d41321edbd1ee7d9c0086531eaae022e8a197c34a41ba27f633869f83e1a96b5e50868530a68c96412a6763cbee5ec7faf96939c25b2d79177799b3b8605 |
C:\Users\Admin\AppData\Local\Temp\tmp6E0F.tmp.bat
| MD5 | f5f3fbe565bcf372a7cf93e0e9afd1ad |
| SHA1 | f3e1523f3d951319cebc998ad0f9a3b456f87ccf |
| SHA256 | 706839335cdd9a4b7cd7290b872918139584292f37073cf9925679a24b18f704 |
| SHA512 | b997d41321edbd1ee7d9c0086531eaae022e8a197c34a41ba27f633869f83e1a96b5e50868530a68c96412a6763cbee5ec7faf96939c25b2d79177799b3b8605 |
memory/2136-13-0x0000000077A20000-0x0000000077BC9000-memory.dmp
memory/2136-12-0x000007FEF5CA0000-0x000007FEF668C000-memory.dmp
C:\Users\Admin\AppData\Roaming\KDFManager.exe
| MD5 | 9c65c31fa60a7490db9ac229f88aeaec |
| SHA1 | 1165267dfffa7ac1443002fb331fd573d34132ae |
| SHA256 | 2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70 |
| SHA512 | f18cde1280543d32b442df89edb53420b5b40e1075cd3001bfe255557d9fe70670467e3005e68dc9e4bd0a2835a99bb7850eb4eefc866bb2bdd6dd177292eb61 |
C:\Users\Admin\AppData\Roaming\KDFManager.exe
| MD5 | 9c65c31fa60a7490db9ac229f88aeaec |
| SHA1 | 1165267dfffa7ac1443002fb331fd573d34132ae |
| SHA256 | 2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70 |
| SHA512 | f18cde1280543d32b442df89edb53420b5b40e1075cd3001bfe255557d9fe70670467e3005e68dc9e4bd0a2835a99bb7850eb4eefc866bb2bdd6dd177292eb61 |
memory/2608-18-0x0000000000B60000-0x0000000000B76000-memory.dmp
memory/2608-19-0x000007FEF52B0000-0x000007FEF5C9C000-memory.dmp
memory/2608-20-0x000000001A9F0000-0x000000001AA70000-memory.dmp
memory/2608-21-0x0000000077A20000-0x0000000077BC9000-memory.dmp
memory/2608-22-0x000007FEF52B0000-0x000007FEF5C9C000-memory.dmp
memory/2608-23-0x000000001A9F0000-0x000000001AA70000-memory.dmp
memory/2608-24-0x0000000077A20000-0x0000000077BC9000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-11-15 16:37
Reported
2023-11-15 16:40
Platform
win10v2004-20231023-en
Max time kernel
150s
Max time network
154s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\NEAS.2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\KDFManager.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\NEAS.2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\KDFManager.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\NEAS.2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "KDFManager" /tr '"C:\Users\Admin\AppData\Roaming\KDFManager.exe"' & exit
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpEB98.tmp.bat""
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "KDFManager" /tr '"C:\Users\Admin\AppData\Roaming\KDFManager.exe"'
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\KDFManager.exe
"C:\Users\Admin\AppData\Roaming\KDFManager.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.78.101.95.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.14.97.104.in-addr.arpa | udp |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 142.202.188.173:9953 | tcp | |
| US | 8.8.8.8:53 | 254.43.238.8.in-addr.arpa | udp |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp | |
| US | 8.8.8.8:53 | 10.73.50.20.in-addr.arpa | udp |
| US | 142.202.188.173:9953 | tcp | |
| US | 142.202.188.173:9953 | tcp |
Files
memory/4772-0-0x0000000000900000-0x0000000000916000-memory.dmp
memory/4772-1-0x00007FFE6FF40000-0x00007FFE70A01000-memory.dmp
memory/4772-2-0x000000001B700000-0x000000001B710000-memory.dmp
memory/4772-7-0x00007FFE8DDB0000-0x00007FFE8DFA5000-memory.dmp
memory/4772-8-0x00007FFE6FF40000-0x00007FFE70A01000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpEB98.tmp.bat
| MD5 | ad6edcab391ae9397b0408137d00e762 |
| SHA1 | 38c7d33de6d04a405f32b3c805594f05208e332a |
| SHA256 | 9ed994d6e4dbf1c632753cce6337ff4a42d2b8374a08fb12a94bc827fc9c68d4 |
| SHA512 | 9e22f5263bfe851610a0c46a55476cfed38a763fb06626eb094235382655f52aa6b606c064706949bd7a3ac38e9fd1ce99f5f9c9aaef3758669ff6bc0d077f75 |
C:\Users\Admin\AppData\Roaming\KDFManager.exe
| MD5 | 9c65c31fa60a7490db9ac229f88aeaec |
| SHA1 | 1165267dfffa7ac1443002fb331fd573d34132ae |
| SHA256 | 2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70 |
| SHA512 | f18cde1280543d32b442df89edb53420b5b40e1075cd3001bfe255557d9fe70670467e3005e68dc9e4bd0a2835a99bb7850eb4eefc866bb2bdd6dd177292eb61 |
C:\Users\Admin\AppData\Roaming\KDFManager.exe
| MD5 | 9c65c31fa60a7490db9ac229f88aeaec |
| SHA1 | 1165267dfffa7ac1443002fb331fd573d34132ae |
| SHA256 | 2a318235a7908da2cfacd1711becc3c0da7a23359a98628f6d1fe14a7dd97b70 |
| SHA512 | f18cde1280543d32b442df89edb53420b5b40e1075cd3001bfe255557d9fe70670467e3005e68dc9e4bd0a2835a99bb7850eb4eefc866bb2bdd6dd177292eb61 |
memory/4788-13-0x00007FFE6EFD0000-0x00007FFE6FA91000-memory.dmp
memory/4788-14-0x000000001B950000-0x000000001B960000-memory.dmp
memory/4788-15-0x00007FFE6EFD0000-0x00007FFE6FA91000-memory.dmp
memory/4788-16-0x000000001B950000-0x000000001B960000-memory.dmp