Analysis Overview
SHA256
aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5
Threat Level: Known bad
The file aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5 was found to be: Known bad.
Malicious Activity Summary
Socks5Systemz
Detect Socks5Systemz Payload
Loads dropped DLL
Unexpected DNS network traffic destination
Executes dropped EXE
Checks installed software on the system
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of FindShellTrayWindow
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-10 23:32
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-10 23:32
Reported
2024-08-10 23:34
Platform
win10v2004-20240802-en
Max time kernel
142s
Max time network
125s
Command Line
Signatures
Detect Socks5Systemz Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Socks5Systemz
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2SHK7.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe | N/A |
Loads dropped DLL
Unexpected DNS network traffic destination
| Description | Indicator | Process | Target |
| Destination IP | 152.89.198.214 | N/A | N/A |
Checks installed software on the system
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\is-2SHK7.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2SHK7.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2SHK7.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2SHK7.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe
"C:\Users\Admin\AppData\Local\Temp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe"
C:\Users\Admin\AppData\Local\Temp\is-2SHK7.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp
"C:\Users\Admin\AppData\Local\Temp\is-2SHK7.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp" /SL5="$B0060,4598069,54272,C:\Users\Admin\AppData\Local\Temp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe"
C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
"C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -i
C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
"C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -s
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 64.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| RU | 152.89.198.214:53 | erfdzxd.ua | udp |
| CH | 185.196.8.214:80 | erfdzxd.ua | tcp |
| US | 8.8.8.8:53 | 214.198.89.152.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 214.8.196.185.in-addr.arpa | udp |
Files
memory/2128-1-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2128-2-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-2SHK7.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp
| MD5 | 85fc5b8836d8625fbfa40a092386e645 |
| SHA1 | a90bb83f5d8d024bb357a44682267a50406071d6 |
| SHA256 | 6dda4c9c34d1898b592ebeccee9f4b2a2bffefd68296da6310435e13fb63d950 |
| SHA512 | c50e53c2c695c7ba24b4cc2c2f958e1e9ce4eea9b541684ea41c7cae513919bb80171dcaaf1c18a8f37221737e6a1f8ba0881a224abd3dd09407d0c4edb96aae |
memory/4768-12-0x0000000000400000-0x00000000004BD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-FJDVD.tmp\_isetup\_isdecmp.dll
| MD5 | a813d18268affd4763dde940246dc7e5 |
| SHA1 | c7366e1fd925c17cc6068001bd38eaef5b42852f |
| SHA256 | e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64 |
| SHA512 | b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4 |
C:\Users\Admin\AppData\Local\Temp\is-FJDVD.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
| MD5 | 0376899342a3ef9ed26e272ead37a7a8 |
| SHA1 | 550ab1348064e0cb0cab20f248fe906ae34f6f1b |
| SHA256 | 3463b04592fed7490b962457eb70c633f6f868ad87ff6ad6f97a5e8ec3600c63 |
| SHA512 | 006011a20c9d1013dce320f67c007cb86668c3973c710b905c7466cf79198f67060a5340c891d0e0f731c004ec93aa0fd7f5293d707ff5541f0cf8b6a40daebf |
memory/216-59-0x0000000000400000-0x0000000000847000-memory.dmp
memory/216-61-0x0000000000400000-0x0000000000847000-memory.dmp
memory/216-62-0x0000000000400000-0x0000000000847000-memory.dmp
memory/216-58-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-65-0x0000000000400000-0x0000000000847000-memory.dmp
memory/2128-66-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4768-67-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/5040-68-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-71-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-74-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-77-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-80-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-83-0x0000000000950000-0x00000000009F2000-memory.dmp
memory/5040-87-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-90-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-93-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-96-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-99-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-102-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-105-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-109-0x0000000000400000-0x0000000000847000-memory.dmp
memory/5040-112-0x0000000000400000-0x0000000000847000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-10 23:32
Reported
2024-08-10 23:34
Platform
win11-20240802-en
Max time kernel
142s
Max time network
144s
Command Line
Signatures
Detect Socks5Systemz Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Socks5Systemz
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-7T6TF.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe | N/A |
Loads dropped DLL
Unexpected DNS network traffic destination
| Description | Indicator | Process | Target |
| Destination IP | 91.211.247.248 | N/A | N/A |
Checks installed software on the system
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\is-7T6TF.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-7T6TF.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-7T6TF.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-7T6TF.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe
"C:\Users\Admin\AppData\Local\Temp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe"
C:\Users\Admin\AppData\Local\Temp\is-7T6TF.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp
"C:\Users\Admin\AppData\Local\Temp\is-7T6TF.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp" /SL5="$502B6,4598069,54272,C:\Users\Admin\AppData\Local\Temp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe"
C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
"C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -i
C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
"C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -s
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| LT | 91.211.247.248:53 | ddufcdu.info | udp |
| CH | 185.196.8.214:80 | ddufcdu.info | tcp |
Files
memory/2776-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2776-2-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-7T6TF.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp
| MD5 | 85fc5b8836d8625fbfa40a092386e645 |
| SHA1 | a90bb83f5d8d024bb357a44682267a50406071d6 |
| SHA256 | 6dda4c9c34d1898b592ebeccee9f4b2a2bffefd68296da6310435e13fb63d950 |
| SHA512 | c50e53c2c695c7ba24b4cc2c2f958e1e9ce4eea9b541684ea41c7cae513919bb80171dcaaf1c18a8f37221737e6a1f8ba0881a224abd3dd09407d0c4edb96aae |
memory/1484-13-0x0000000000400000-0x00000000004BD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-5DR4S.tmp\_isetup\_isdecmp.dll
| MD5 | a813d18268affd4763dde940246dc7e5 |
| SHA1 | c7366e1fd925c17cc6068001bd38eaef5b42852f |
| SHA256 | e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64 |
| SHA512 | b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4 |
C:\Users\Admin\AppData\Local\Temp\is-5DR4S.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
| MD5 | 0376899342a3ef9ed26e272ead37a7a8 |
| SHA1 | 550ab1348064e0cb0cab20f248fe906ae34f6f1b |
| SHA256 | 3463b04592fed7490b962457eb70c633f6f868ad87ff6ad6f97a5e8ec3600c63 |
| SHA512 | 006011a20c9d1013dce320f67c007cb86668c3973c710b905c7466cf79198f67060a5340c891d0e0f731c004ec93aa0fd7f5293d707ff5541f0cf8b6a40daebf |
memory/1920-58-0x0000000000400000-0x0000000000847000-memory.dmp
memory/1920-61-0x0000000000400000-0x0000000000847000-memory.dmp
memory/1920-62-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-65-0x0000000000400000-0x0000000000847000-memory.dmp
memory/2776-66-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1484-67-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/4348-68-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-71-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-72-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-75-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-78-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-81-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-84-0x0000000000C20000-0x0000000000CC2000-memory.dmp
memory/4348-87-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-92-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-95-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-98-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-101-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-104-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-107-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-111-0x0000000000400000-0x0000000000847000-memory.dmp
memory/4348-114-0x0000000000400000-0x0000000000847000-memory.dmp