Analysis Overview
SHA256
5bf8102edefe3e55a0e33207fdbf359f71477f70856745bc4e626cc72d498cd6
Threat Level: Known bad
The file 1240-55-0x0000000000370000-0x0000000000382000-memory.dmp was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Asyncrat family
Async RAT payload
Async RAT payload
Checks computer location settings
Executes dropped EXE
Enumerates physical storage devices
Unsigned PE
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Delays execution with timeout.exe
Uses Task Scheduler COM API
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-05-05 01:29
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
2023-05-05 01:29
Reported
2023-05-05 01:32
Platform
win7-20230220-en
Max time kernel
38s
Max time network
143s
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\microsafte.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\1240-55-0x0000000000370000-0x0000000000382000-memory.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\1240-55-0x0000000000370000-0x0000000000382000-memory.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\microsafte.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\1240-55-0x0000000000370000-0x0000000000382000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\1240-55-0x0000000000370000-0x0000000000382000-memory.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn 1240-55-0x0000000000370000-0x0000000000382000-memory /tr '"C:\Users\Admin\AppData\Roaming\microsafte.exe"' & exit
C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp45F7.tmp.bat""
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /ru system /rl highest /tn 1240-55-0x0000000000370000-0x0000000000382000-memory /tr '"C:\Users\Admin\AppData\Roaming\microsafte.exe"'
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\microsafte.exe
"C:\Users\Admin\AppData\Roaming\microsafte.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | seznam.zapto.org | udp |
| NL | 91.109.178.2:6606 | seznam.zapto.org | tcp |
Files
memory/2016-54-0x0000000001080000-0x0000000001092000-memory.dmp
memory/2016-55-0x000000001B0E0000-0x000000001B160000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp45F7.tmp.bat
| MD5 | f1379a15061e6b5df40db3da283bff5b |
| SHA1 | 51ac1db18747ada4cdef9ffe38ed1af4a4133671 |
| SHA256 | 34f58e05abbda98901492e9153408bf3996c024d3b2eb3a4262d64a207332fdb |
| SHA512 | 71265fce9479f8206683249c4e9af66e765f0ebf0ee67fb6f582e443f51d39b46944799bf9319dce8bef8ef299f3dbab6b15ad7e2add814a60a05ea9d969ec57 |
C:\Users\Admin\AppData\Local\Temp\tmp45F7.tmp.bat
| MD5 | f1379a15061e6b5df40db3da283bff5b |
| SHA1 | 51ac1db18747ada4cdef9ffe38ed1af4a4133671 |
| SHA256 | 34f58e05abbda98901492e9153408bf3996c024d3b2eb3a4262d64a207332fdb |
| SHA512 | 71265fce9479f8206683249c4e9af66e765f0ebf0ee67fb6f582e443f51d39b46944799bf9319dce8bef8ef299f3dbab6b15ad7e2add814a60a05ea9d969ec57 |
C:\Users\Admin\AppData\Roaming\microsafte.exe
| MD5 | 6ddcee176a864b67cd4cff577c28cdf1 |
| SHA1 | c69292e4ec9128ccc4de351f39a48d1bd3f439e6 |
| SHA256 | 5bf8102edefe3e55a0e33207fdbf359f71477f70856745bc4e626cc72d498cd6 |
| SHA512 | 3482d4da78c96ca3d404d97547ee21ff1651339bb5ae01f107399705f6a73bbd26e1f0a0761b0625427373cc688812e43483774a754c1f9a0bce9ff16e322ff4 |
C:\Users\Admin\AppData\Roaming\microsafte.exe
| MD5 | 6ddcee176a864b67cd4cff577c28cdf1 |
| SHA1 | c69292e4ec9128ccc4de351f39a48d1bd3f439e6 |
| SHA256 | 5bf8102edefe3e55a0e33207fdbf359f71477f70856745bc4e626cc72d498cd6 |
| SHA512 | 3482d4da78c96ca3d404d97547ee21ff1651339bb5ae01f107399705f6a73bbd26e1f0a0761b0625427373cc688812e43483774a754c1f9a0bce9ff16e322ff4 |
memory/1544-68-0x0000000000A50000-0x0000000000A62000-memory.dmp
memory/1544-69-0x000000001B1D0000-0x000000001B250000-memory.dmp
memory/1544-87-0x000000001B1D0000-0x000000001B250000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-05-05 01:29
Reported
2023-05-05 01:32
Platform
win10v2004-20230220-en
Max time kernel
135s
Max time network
153s
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\1240-55-0x0000000000370000-0x0000000000382000-memory.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\microsafte.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\1240-55-0x0000000000370000-0x0000000000382000-memory.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\microsafte.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\1240-55-0x0000000000370000-0x0000000000382000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\1240-55-0x0000000000370000-0x0000000000382000-memory.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn 1240-55-0x0000000000370000-0x0000000000382000-memory /tr '"C:\Users\Admin\AppData\Roaming\microsafte.exe"' & exit
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE004.tmp.bat""
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /ru system /rl highest /tn 1240-55-0x0000000000370000-0x0000000000382000-memory /tr '"C:\Users\Admin\AppData\Roaming\microsafte.exe"'
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\microsafte.exe
"C:\Users\Admin\AppData\Roaming\microsafte.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | seznam.zapto.org | udp |
| NL | 91.109.178.2:6606 | seznam.zapto.org | tcp |
| US | 8.8.8.8:53 | 2.178.109.91.in-addr.arpa | udp |
| US | 20.42.72.131:443 | tcp | |
| US | 40.125.122.176:443 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| NL | 173.223.113.164:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 204.79.197.203:80 | tcp | |
| US | 40.125.122.176:443 | tcp | |
| US | 8.8.8.8:53 | 64.13.109.52.in-addr.arpa | udp |
| US | 209.197.3.8:80 | tcp | |
| US | 40.125.122.176:443 | tcp | |
| US | 40.125.122.176:443 | tcp | |
| US | 40.125.122.176:443 | tcp | |
| US | 40.125.122.176:443 | tcp |
Files
memory/3476-133-0x0000000000BB0000-0x0000000000BC2000-memory.dmp
memory/3476-134-0x000000001C4B0000-0x000000001C4C0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpE004.tmp.bat
| MD5 | 4ac1dd2cc7b2bc47577cb14c9f733d6a |
| SHA1 | eeadef940caee9c16b93de6c4ce360524497e2b2 |
| SHA256 | b7fe65bd264f3f8ea4d9ce73040233efa7edb474f669bd44320a56b62b31a0bb |
| SHA512 | 5ade27ec7af9dc2246894dbd24fa27ab52517a669881e24a9ed56d50a4e9f553d67283e9a062181fcd4cdb0d47c870e773daa2c1277d70af1bef55c1a18b5378 |
C:\Users\Admin\AppData\Roaming\microsafte.exe
| MD5 | 6ddcee176a864b67cd4cff577c28cdf1 |
| SHA1 | c69292e4ec9128ccc4de351f39a48d1bd3f439e6 |
| SHA256 | 5bf8102edefe3e55a0e33207fdbf359f71477f70856745bc4e626cc72d498cd6 |
| SHA512 | 3482d4da78c96ca3d404d97547ee21ff1651339bb5ae01f107399705f6a73bbd26e1f0a0761b0625427373cc688812e43483774a754c1f9a0bce9ff16e322ff4 |
C:\Users\Admin\AppData\Roaming\microsafte.exe
| MD5 | 6ddcee176a864b67cd4cff577c28cdf1 |
| SHA1 | c69292e4ec9128ccc4de351f39a48d1bd3f439e6 |
| SHA256 | 5bf8102edefe3e55a0e33207fdbf359f71477f70856745bc4e626cc72d498cd6 |
| SHA512 | 3482d4da78c96ca3d404d97547ee21ff1651339bb5ae01f107399705f6a73bbd26e1f0a0761b0625427373cc688812e43483774a754c1f9a0bce9ff16e322ff4 |
memory/1156-143-0x000000001BFA0000-0x000000001BFB0000-memory.dmp
memory/1156-144-0x000000001BFA0000-0x000000001BFB0000-memory.dmp