Analysis Overview
SHA256
54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926
Threat Level: Known bad
The file 54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926 was found to be: Known bad.
Malicious Activity Summary
Detect Socks5Systemz Payload
Socks5Systemz
Executes dropped EXE
Loads dropped DLL
Unexpected DNS network traffic destination
Checks installed software on the system
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious use of FindShellTrayWindow
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-03 00:31
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-03 00:31
Reported
2024-08-03 00:33
Platform
win10v2004-20240802-en
Max time kernel
143s
Max time network
128s
Command Line
Signatures
Detect Socks5Systemz 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 |
Socks5Systemz
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp | N/A |
Unexpected DNS network traffic destination
| Description | Indicator | Process | Target |
| Destination IP | 141.98.234.31 | 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\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.exe
"C:\Users\Admin\AppData\Local\Temp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.exe"
C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp
"C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp" /SL5="$7005A,3980347,54272,C:\Users\Admin\AppData\Local\Temp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.exe"
C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe
"C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe" -i
C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe
"C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe" -s
Network
| Country | Destination | Domain | Proto |
| 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 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.140.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| HK | 141.98.234.31:53 | eznnwmi.ua | udp |
| CH | 185.196.8.214:80 | eznnwmi.ua | tcp |
| NL | 45.156.23.96:2023 | tcp | |
| US | 8.8.8.8:53 | 214.8.196.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.234.98.141.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 96.23.156.45.in-addr.arpa | udp |
Files
memory/1224-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1224-2-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp
| MD5 | 849bb5c3439284a175f581ec281ca92e |
| SHA1 | 8bd0737eac1a74de4d62d66911ca7ed9f61cbc0f |
| SHA256 | 33a8f60e50240aecdbedc45922032025376ecccc0c1acbd44c82f12985e82206 |
| SHA512 | ac7bd629b6ed2595c6af4ef0737d7d801c8c35ebb4638ec2c19569511157a1543a6fa91d1a15708810865ece1cfb27367480754a7debf716d322d1eb59c5f625 |
memory/1468-13-0x0000000000400000-0x00000000004BD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-V7K1M.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe
| MD5 | 7b8d8edb2ea6f085c3f7fd8f205d1977 |
| SHA1 | 39d411ef00df5ba7795796f06b6971961d1e9220 |
| SHA256 | 3b045b1123c3ae4c103217f218f1f218a21ed7e0a118616d8374738c970c31cf |
| SHA512 | 42b235b2b9ec77be8d47414b8cd69e51c264bfaa88258be3a14e98eab17c0e18217a07816f706b0a7cf82f0a77fc58507c75e8470054dbe3cc085a2e39a9ce84 |
memory/1028-51-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/1028-53-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/1028-57-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/1028-56-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-59-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/1224-61-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1468-62-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/640-63-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-66-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-69-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-72-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-75-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-78-0x0000000000CA0000-0x0000000000D42000-memory.dmp
memory/640-80-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-85-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-88-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-91-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-94-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-97-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-100-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-101-0x0000000000CA0000-0x0000000000D42000-memory.dmp
memory/640-102-0x0000000000CA0000-0x0000000000D42000-memory.dmp
memory/640-106-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/640-109-0x0000000000400000-0x00000000008B2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-03 00:31
Reported
2024-08-03 00:33
Platform
win11-20240802-en
Max time kernel
147s
Max time network
150s
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-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp | N/A |
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-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.exe
"C:\Users\Admin\AppData\Local\Temp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.exe"
C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp
"C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp" /SL5="$6005C,3980347,54272,C:\Users\Admin\AppData\Local\Temp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.exe"
C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe
"C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe" -i
C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe
"C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe" -s
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 71.159.190.20.in-addr.arpa | udp |
| LT | 91.211.247.248:53 | bhngwru.com | udp |
| CH | 185.196.8.214:80 | bhngwru.com | tcp |
Files
memory/976-1-0x0000000000400000-0x0000000000414000-memory.dmp
memory/976-2-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-46BIS.tmp\54a5a788f5f9943f4734b0cf9e499d6d6cf9c0ba0df3c63a8eec9195431b2926.tmp
| MD5 | 849bb5c3439284a175f581ec281ca92e |
| SHA1 | 8bd0737eac1a74de4d62d66911ca7ed9f61cbc0f |
| SHA256 | 33a8f60e50240aecdbedc45922032025376ecccc0c1acbd44c82f12985e82206 |
| SHA512 | ac7bd629b6ed2595c6af4ef0737d7d801c8c35ebb4638ec2c19569511157a1543a6fa91d1a15708810865ece1cfb27367480754a7debf716d322d1eb59c5f625 |
memory/4744-12-0x0000000000400000-0x00000000004BD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-1MVQ9.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe
| MD5 | 7b8d8edb2ea6f085c3f7fd8f205d1977 |
| SHA1 | 39d411ef00df5ba7795796f06b6971961d1e9220 |
| SHA256 | 3b045b1123c3ae4c103217f218f1f218a21ed7e0a118616d8374738c970c31cf |
| SHA512 | 42b235b2b9ec77be8d47414b8cd69e51c264bfaa88258be3a14e98eab17c0e18217a07816f706b0a7cf82f0a77fc58507c75e8470054dbe3cc085a2e39a9ce84 |
memory/1092-53-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/1092-52-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/1092-56-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/1092-57-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-60-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-61-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/976-62-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4744-63-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/2884-64-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/1092-67-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-68-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-69-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-72-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-75-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-78-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-81-0x0000000000C60000-0x0000000000D02000-memory.dmp
memory/2884-84-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-89-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-92-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-95-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-98-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-101-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-104-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-108-0x0000000000400000-0x00000000008B2000-memory.dmp
memory/2884-111-0x0000000000400000-0x00000000008B2000-memory.dmp