Analysis Overview
SHA256
be067c2c7c5a474442339d8adc999a0a288d56890d9781e88f536b6183cd398c
Threat Level: Known bad
The file service.exe was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Async RAT payload
Blocklisted process makes network request
Downloads MZ/PE file
Sets file to hidden
Drops startup file
Executes dropped EXE
Checks computer location settings
Legitimate hosting services abused for malware hosting/C2
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-03-17 06:22
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-03-17 06:22
Reported
2023-03-17 06:25
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
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 | e04e55d2e6cc3d920631fdc5d6dcc1ce |
| SHA1 | 2c4dbcff71f8678623a7c197440ec281804dc5a5 |
| SHA256 | f641a99ec7e549970c81d724766f2a60ff031a5ec92aa6fc84228c82eeb4b4eb |
| SHA512 | 9511fe4dc599187f4539b8cda476550c54e86cbfcaca339a5db12e980ec322bf488d7458bf76089aa1d845f164f7ddb8adea017923d9a4930b9e821b7a4ae998 |
C:\Users\Admin\AppData\Local\Temp\RarSFX0\service.ps1
| MD5 | 8a97b217587bf21df5b6be29428a1251 |
| SHA1 | 33bc1ad54acc40f29d1b09767811c4a9f779f9a5 |
| SHA256 | ac975c8129b58f138e0f9880d5d63e6ca9e350c875e09a6dd5c16b40eaa9ea0d |
| SHA512 | 944c4fbbb3e92afad4cb4fc9f675cbe0b12ff3ef371fa1a5acdffb8489d7c7dde6e2cb8c2a1e194db9eba8e7c74db82b91ceaa40bc3f189924adaeae01cc2409 |
memory/376-64-0x0000000002890000-0x00000000028D0000-memory.dmp
memory/376-65-0x0000000002890000-0x00000000028D0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-03-17 06:22
Reported
2023-03-17 06:25
Platform
win10v2004-20230220-en
Max time kernel
148s
Max time network
150s
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-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\service.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\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\tmp1DD4.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\tmp1DD4.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\tmp1DD4.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-1-5-21-2275444769-3691835758-4097679484-1000_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 .\\tmp1DD4.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp1DD4.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp1DD4.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.38.195.152.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.232.18.117.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.81.184.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 39.146.190.20.in-addr.arpa | udp |
| US | 209.197.3.8:80 | tcp | |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 104.20.68.143:443 | 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 | 143.68.20.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 38.151.96.195.in-addr.arpa | udp |
| US | 104.20.68.143:443 | pastebin.com | tcp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 52.152.108.96:443 | tcp | |
| US | 20.42.65.90:443 | tcp | |
| US | 8.8.8.8:53 | 177.238.32.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.36.159.162.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 62.13.109.52.in-addr.arpa | udp |
| US | 209.197.3.8:80 | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\RarSFX0\config.vbs
| MD5 | e04e55d2e6cc3d920631fdc5d6dcc1ce |
| SHA1 | 2c4dbcff71f8678623a7c197440ec281804dc5a5 |
| SHA256 | f641a99ec7e549970c81d724766f2a60ff031a5ec92aa6fc84228c82eeb4b4eb |
| SHA512 | 9511fe4dc599187f4539b8cda476550c54e86cbfcaca339a5db12e980ec322bf488d7458bf76089aa1d845f164f7ddb8adea017923d9a4930b9e821b7a4ae998 |
memory/3852-141-0x0000000004920000-0x0000000004930000-memory.dmp
memory/3852-140-0x00000000048D0000-0x0000000004906000-memory.dmp
memory/3852-142-0x0000000004F60000-0x0000000005588000-memory.dmp
memory/3852-143-0x0000000004F00000-0x0000000004F22000-memory.dmp
memory/3852-144-0x0000000005800000-0x0000000005866000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eugyxmb2.z0t.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/3852-150-0x0000000005870000-0x00000000058D6000-memory.dmp
memory/3852-155-0x0000000004920000-0x0000000004930000-memory.dmp
memory/3852-156-0x0000000005F40000-0x0000000005F5E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\RarSFX0\service.ps1
| MD5 | 8a97b217587bf21df5b6be29428a1251 |
| SHA1 | 33bc1ad54acc40f29d1b09767811c4a9f779f9a5 |
| SHA256 | ac975c8129b58f138e0f9880d5d63e6ca9e350c875e09a6dd5c16b40eaa9ea0d |
| SHA512 | 944c4fbbb3e92afad4cb4fc9f675cbe0b12ff3ef371fa1a5acdffb8489d7c7dde6e2cb8c2a1e194db9eba8e7c74db82b91ceaa40bc3f189924adaeae01cc2409 |
memory/3852-158-0x0000000006EF0000-0x0000000006F86000-memory.dmp
memory/3852-159-0x0000000006490000-0x00000000064AA000-memory.dmp
memory/3852-160-0x00000000064E0000-0x0000000006502000-memory.dmp
memory/3852-161-0x0000000007540000-0x0000000007AE4000-memory.dmp
memory/3852-162-0x0000000004920000-0x0000000004930000-memory.dmp
memory/3852-163-0x0000000008170000-0x00000000087EA000-memory.dmp
memory/3852-164-0x0000000007270000-0x00000000072A2000-memory.dmp
memory/3852-165-0x000000006F2C0000-0x000000006F30C000-memory.dmp
memory/3852-175-0x0000000008000000-0x000000000801E000-memory.dmp
memory/3852-176-0x0000000008120000-0x000000000812A000-memory.dmp
memory/3852-177-0x000000007FDB0000-0x000000007FDC0000-memory.dmp
memory/3852-178-0x0000000004920000-0x0000000004930000-memory.dmp
memory/3852-179-0x0000000008930000-0x000000000893E000-memory.dmp
memory/3852-180-0x0000000008990000-0x00000000089AA000-memory.dmp
memory/3852-181-0x0000000008980000-0x0000000008988000-memory.dmp
memory/3852-182-0x0000000004920000-0x0000000004930000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp1DD4.exe
| MD5 | fa378b2bb6985eec44142dca9f381985 |
| SHA1 | 5b6614fcfc131772ab7d8e9df13b84a9c8b8aec0 |
| SHA256 | 07280cbf4815aba1b1841d4eeb86df01483c240301006c4f1d566e152e1ad783 |
| SHA512 | 117dbd8efaedec137667fd6cd64db0ad2d1396118aeb29fcbf2e7876c4f68d085ccfe5526f586aedbd5e22d4f4e986ff1660b182e6f375d46cd900efe57cc0fa |
memory/3852-185-0x0000000004920000-0x0000000004930000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp1DD4.exe
| MD5 | fa378b2bb6985eec44142dca9f381985 |
| SHA1 | 5b6614fcfc131772ab7d8e9df13b84a9c8b8aec0 |
| SHA256 | 07280cbf4815aba1b1841d4eeb86df01483c240301006c4f1d566e152e1ad783 |
| SHA512 | 117dbd8efaedec137667fd6cd64db0ad2d1396118aeb29fcbf2e7876c4f68d085ccfe5526f586aedbd5e22d4f4e986ff1660b182e6f375d46cd900efe57cc0fa |
memory/5032-187-0x0000000000570000-0x0000000000582000-memory.dmp
memory/5032-190-0x0000000004E80000-0x0000000004E90000-memory.dmp
memory/5032-191-0x0000000004E80000-0x0000000004E90000-memory.dmp