Analysis Overview
SHA256
c83bb3ba68f3f4fde63abea1a95a89566c4a8b75bac40d47b8733a1dac0d1658
Threat Level: Known bad
The file service.exe was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Async RAT payload
Sets file to hidden
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Checks computer location settings
Drops startup file
Legitimate hosting services abused for malware hosting/C2
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Modifies registry class
Views/modifies file attributes
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-03-17 06:18
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-03-17 06:18
Reported
2023-03-17 06:21
Platform
win7-20230220-en
Max time kernel
27s
Max time network
30s
Command Line
Signatures
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1972 wrote to memory of 528 | N/A | C:\Users\Admin\AppData\Local\Temp\service.exe | C:\Windows\SysWOW64\WScript.exe |
| PID 1972 wrote to memory of 528 | N/A | C:\Users\Admin\AppData\Local\Temp\service.exe | C:\Windows\SysWOW64\WScript.exe |
| PID 1972 wrote to memory of 528 | N/A | C:\Users\Admin\AppData\Local\Temp\service.exe | C:\Windows\SysWOW64\WScript.exe |
| PID 1972 wrote to memory of 528 | N/A | C:\Users\Admin\AppData\Local\Temp\service.exe | C:\Windows\SysWOW64\WScript.exe |
| PID 528 wrote to memory of 1204 | N/A | C:\Windows\SysWOW64\WScript.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe |
| PID 528 wrote to memory of 1204 | N/A | C:\Windows\SysWOW64\WScript.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe |
| PID 528 wrote to memory of 1204 | N/A | C:\Windows\SysWOW64\WScript.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe |
| PID 528 wrote to memory of 1204 | N/A | C:\Windows\SysWOW64\WScript.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\service.exe
"C:\Users\Admin\AppData\Local\Temp\service.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\RarSFX0\config.vbs"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Unrestricted -nologo -command .\service.ps1
Network
Files
C:\Users\Admin\AppData\Local\Temp\RarSFX0\config.vbs
| MD5 | a5871da9a2df94e7f9e631b8d88db6f2 |
| SHA1 | 0fe4a2d4ee43f0ddd04fdf6fcf18ea157f197b6b |
| SHA256 | c3da432bc28fc4cd5346b0b1350217dbc1fb5939dd3436a1a1415d5f5a4c821d |
| SHA512 | 4c31e60bd2d823eec6f3c83973b0845c104632006877e3960ff3c7abc69b05f41d09a2dcede557d642b5e74a128800dfd543f2f88026a1400172ec4ea850084c |
memory/1204-63-0x0000000002630000-0x0000000002670000-memory.dmp
memory/1204-64-0x0000000002630000-0x0000000002670000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\RarSFX0\service.ps1
| MD5 | 8a97b217587bf21df5b6be29428a1251 |
| SHA1 | 33bc1ad54acc40f29d1b09767811c4a9f779f9a5 |
| SHA256 | ac975c8129b58f138e0f9880d5d63e6ca9e350c875e09a6dd5c16b40eaa9ea0d |
| SHA512 | 944c4fbbb3e92afad4cb4fc9f675cbe0b12ff3ef371fa1a5acdffb8489d7c7dde6e2cb8c2a1e194db9eba8e7c74db82b91ceaa40bc3f189924adaeae01cc2409 |
Analysis: behavioral2
Detonation Overview
Submitted
2023-03-17 06:18
Reported
2023-03-17 06:21
Platform
win10v2004-20230220-en
Max time kernel
149s
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 |
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
Downloads MZ/PE file
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | 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\service.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\WScript.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp7DD6.exe | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp7DD6.exe | C:\Windows\SysWOW64\attrib.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp7DD6.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\service.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\service.exe
"C:\Users\Admin\AppData\Local\Temp\service.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\RarSFX0\config.vbs"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Unrestricted -nologo -command .\service.ps1
C:\Windows\SysWOW64\attrib.exe
"C:\Windows\System32\attrib.exe" +s +h .\\tmp7DD6.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp7DD6.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp7DD6.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 126.135.241.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.38.195.152.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 123.108.74.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 172.67.34.170:443 | pastebin.com | tcp |
| US | 8.8.8.8:53 | cdn-145.anonfiles.com | udp |
| SE | 195.96.151.38:443 | cdn-145.anonfiles.com | tcp |
| US | 8.8.8.8:53 | 170.34.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 38.151.96.195.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 20.42.73.26:443 | tcp | |
| US | 172.67.34.170:443 | pastebin.com | tcp |
| US | 52.152.110.14:443 | tcp | |
| NL | 173.223.113.164:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 204.79.197.203:80 | api.msn.com | tcp |
| US | 52.152.110.14:443 | tcp | |
| US | 8.8.8.8:53 | 86.8.109.52.in-addr.arpa | udp |
| US | 209.197.3.8:80 | tcp | |
| US | 8.8.8.8:53 | 199.176.139.52.in-addr.arpa | udp |
| US | 52.152.110.14:443 | tcp | |
| US | 52.152.110.14:443 | tcp | |
| US | 8.8.8.8:53 | 177.238.32.23.in-addr.arpa | udp |
| US | 52.152.110.14:443 | tcp | |
| US | 52.152.110.14:443 | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\RarSFX0\config.vbs
| MD5 | a5871da9a2df94e7f9e631b8d88db6f2 |
| SHA1 | 0fe4a2d4ee43f0ddd04fdf6fcf18ea157f197b6b |
| SHA256 | c3da432bc28fc4cd5346b0b1350217dbc1fb5939dd3436a1a1415d5f5a4c821d |
| SHA512 | 4c31e60bd2d823eec6f3c83973b0845c104632006877e3960ff3c7abc69b05f41d09a2dcede557d642b5e74a128800dfd543f2f88026a1400172ec4ea850084c |
memory/4696-140-0x00000000048A0000-0x00000000048D6000-memory.dmp
memory/4696-141-0x0000000002490000-0x00000000024A0000-memory.dmp
memory/4696-142-0x0000000002490000-0x00000000024A0000-memory.dmp
memory/4696-143-0x0000000004F10000-0x0000000005538000-memory.dmp
memory/4696-144-0x0000000005570000-0x0000000005592000-memory.dmp
memory/4696-145-0x0000000005710000-0x0000000005776000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qqoifdut.ijp.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/4696-146-0x00000000057F0000-0x0000000005856000-memory.dmp
memory/4696-156-0x0000000005DF0000-0x0000000005E0E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\RarSFX0\service.ps1
| MD5 | 8a97b217587bf21df5b6be29428a1251 |
| SHA1 | 33bc1ad54acc40f29d1b09767811c4a9f779f9a5 |
| SHA256 | ac975c8129b58f138e0f9880d5d63e6ca9e350c875e09a6dd5c16b40eaa9ea0d |
| SHA512 | 944c4fbbb3e92afad4cb4fc9f675cbe0b12ff3ef371fa1a5acdffb8489d7c7dde6e2cb8c2a1e194db9eba8e7c74db82b91ceaa40bc3f189924adaeae01cc2409 |
memory/4696-158-0x0000000002490000-0x00000000024A0000-memory.dmp
memory/4696-159-0x0000000006DC0000-0x0000000006E56000-memory.dmp
memory/4696-160-0x0000000006330000-0x000000000634A000-memory.dmp
memory/4696-161-0x0000000006380000-0x00000000063A2000-memory.dmp
memory/4696-162-0x0000000007410000-0x00000000079B4000-memory.dmp
memory/4696-163-0x0000000008040000-0x00000000086BA000-memory.dmp
memory/4696-164-0x0000000007130000-0x0000000007162000-memory.dmp
memory/4696-165-0x0000000002490000-0x00000000024A0000-memory.dmp
memory/4696-166-0x0000000002490000-0x00000000024A0000-memory.dmp
memory/4696-167-0x000000006F180000-0x000000006F1CC000-memory.dmp
memory/4696-177-0x0000000007E40000-0x0000000007E5E000-memory.dmp
memory/4696-178-0x0000000007F60000-0x0000000007F6A000-memory.dmp
memory/4696-179-0x000000007FD00000-0x000000007FD10000-memory.dmp
memory/4696-180-0x0000000007FA0000-0x0000000007FAE000-memory.dmp
memory/4696-181-0x0000000008000000-0x000000000801A000-memory.dmp
memory/4696-182-0x0000000007FF0000-0x0000000007FF8000-memory.dmp
memory/4696-183-0x0000000002490000-0x00000000024A0000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp7DD6.exe
| MD5 | fa378b2bb6985eec44142dca9f381985 |
| SHA1 | 5b6614fcfc131772ab7d8e9df13b84a9c8b8aec0 |
| SHA256 | 07280cbf4815aba1b1841d4eeb86df01483c240301006c4f1d566e152e1ad783 |
| SHA512 | 117dbd8efaedec137667fd6cd64db0ad2d1396118aeb29fcbf2e7876c4f68d085ccfe5526f586aedbd5e22d4f4e986ff1660b182e6f375d46cd900efe57cc0fa |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp7DD6.exe
| MD5 | fa378b2bb6985eec44142dca9f381985 |
| SHA1 | 5b6614fcfc131772ab7d8e9df13b84a9c8b8aec0 |
| SHA256 | 07280cbf4815aba1b1841d4eeb86df01483c240301006c4f1d566e152e1ad783 |
| SHA512 | 117dbd8efaedec137667fd6cd64db0ad2d1396118aeb29fcbf2e7876c4f68d085ccfe5526f586aedbd5e22d4f4e986ff1660b182e6f375d46cd900efe57cc0fa |
memory/652-187-0x0000000000E00000-0x0000000000E12000-memory.dmp
memory/652-190-0x0000000005770000-0x0000000005780000-memory.dmp
memory/652-191-0x0000000005770000-0x0000000005780000-memory.dmp