Analysis Overview
SHA256
0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a
Threat Level: Known bad
The file 0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a 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
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-03 04:08
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-03 04:08
Reported
2024-08-03 04:10
Platform
win7-20240704-en
Max time kernel
146s
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-PT8BC.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.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
Unexpected DNS network traffic destination
| Description | Indicator | Process | Target |
| Destination IP | 152.89.198.214 | N/A | N/A |
| 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\Temp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\is-PT8BC.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.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-PT8BC.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-PT8BC.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-PT8BC.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.exe
"C:\Users\Admin\AppData\Local\Temp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.exe"
C:\Users\Admin\AppData\Local\Temp\is-PT8BC.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp
"C:\Users\Admin\AppData\Local\Temp\is-PT8BC.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp" /SL5="$400F8,3759147,54272,C:\Users\Admin\AppData\Local\Temp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.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 |
| RU | 152.89.198.214:53 | erguegh.ua | udp |
| RU | 152.89.198.214:53 | erguegh.ua | udp |
Files
memory/2388-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/2388-0-0x0000000000400000-0x0000000000414000-memory.dmp
\Users\Admin\AppData\Local\Temp\is-PT8BC.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp
| MD5 | 849bb5c3439284a175f581ec281ca92e |
| SHA1 | 8bd0737eac1a74de4d62d66911ca7ed9f61cbc0f |
| SHA256 | 33a8f60e50240aecdbedc45922032025376ecccc0c1acbd44c82f12985e82206 |
| SHA512 | ac7bd629b6ed2595c6af4ef0737d7d801c8c35ebb4638ec2c19569511157a1543a6fa91d1a15708810865ece1cfb27367480754a7debf716d322d1eb59c5f625 |
memory/2188-18-0x0000000000400000-0x00000000004BD000-memory.dmp
\Users\Admin\AppData\Local\Temp\is-RA5BO.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
\Users\Admin\AppData\Local\Temp\is-RA5BO.tmp\_isetup\_shfoldr.dll
| MD5 | 92dc6ef532fbb4a5c3201469a5b5eb63 |
| SHA1 | 3e89ff837147c16b4e41c30d6c796374e0b8e62c |
| SHA256 | 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87 |
| SHA512 | 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3 |
\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe
| MD5 | 7a498a1353864e6c8dbb8823947f552d |
| SHA1 | 34474e1a9a42f3957ddff34cc1f5b127d5795eaa |
| SHA256 | 20c9db025e28991da1d849ab68d1932c6027f6568e32d8fa13d484e4c5236cdf |
| SHA512 | 4b700290a77c5fcfe2058397310658afcbc16b1a35784f54f1ad52ee667fb68ec15726c70928a00b7afb1bf8d96a184b875899cd736837fc9bf170f15e6596a3 |
memory/2788-57-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2188-56-0x0000000004FA0000-0x0000000005420000-memory.dmp
memory/2788-58-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2788-61-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2768-63-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2388-65-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2188-66-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/2768-69-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2188-70-0x0000000004FA0000-0x0000000005420000-memory.dmp
memory/2768-73-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2768-75-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2768-79-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2768-82-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2768-85-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2768-86-0x00000000023C0000-0x0000000002462000-memory.dmp
memory/2768-90-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2768-95-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2768-98-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2768-101-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2768-102-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2768-107-0x0000000000400000-0x0000000000880000-memory.dmp
memory/2768-110-0x0000000000400000-0x0000000000880000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-03 04:08
Reported
2024-08-03 04:10
Platform
win10v2004-20240802-en
Max time kernel
149s
Max time network
151s
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-O0EJ3.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.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-O0EJ3.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp | N/A |
Unexpected DNS network traffic destination
| Description | Indicator | Process | Target |
| Destination IP | 152.89.198.214 | N/A | N/A |
| Destination IP | 152.89.198.214 | N/A | N/A |
| 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\AC3Filter\ac3filter32_64.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\is-O0EJ3.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp | 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-O0EJ3.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-O0EJ3.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-O0EJ3.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.exe
"C:\Users\Admin\AppData\Local\Temp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.exe"
C:\Users\Admin\AppData\Local\Temp\is-O0EJ3.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp
"C:\Users\Admin\AppData\Local\Temp\is-O0EJ3.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp" /SL5="$6023E,3759147,54272,C:\Users\Admin\AppData\Local\Temp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.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 | 71.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| RU | 152.89.198.214:53 | dtbbygv.info | udp |
| US | 8.8.8.8:53 | 214.198.89.152.in-addr.arpa | udp |
| RU | 152.89.198.214:53 | dtbbygv.info | udp |
| LT | 91.211.247.248:53 | dtbbygv.info | udp |
| CH | 185.196.8.214:80 | dtbbygv.info | tcp |
| US | 8.8.8.8:53 | 248.247.211.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 214.8.196.185.in-addr.arpa | udp |
Files
memory/4144-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4144-2-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-O0EJ3.tmp\0b73b6a445183fb265e533d811bebf9285d4618166b01f7d8f63dcc51aa93f8a.tmp
| MD5 | 849bb5c3439284a175f581ec281ca92e |
| SHA1 | 8bd0737eac1a74de4d62d66911ca7ed9f61cbc0f |
| SHA256 | 33a8f60e50240aecdbedc45922032025376ecccc0c1acbd44c82f12985e82206 |
| SHA512 | ac7bd629b6ed2595c6af4ef0737d7d801c8c35ebb4638ec2c19569511157a1543a6fa91d1a15708810865ece1cfb27367480754a7debf716d322d1eb59c5f625 |
memory/4468-13-0x0000000000400000-0x00000000004BD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-3REU3.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
C:\Users\Admin\AppData\Local\AC3Filter\ac3filter32_64.exe
| MD5 | 7a498a1353864e6c8dbb8823947f552d |
| SHA1 | 34474e1a9a42f3957ddff34cc1f5b127d5795eaa |
| SHA256 | 20c9db025e28991da1d849ab68d1932c6027f6568e32d8fa13d484e4c5236cdf |
| SHA512 | 4b700290a77c5fcfe2058397310658afcbc16b1a35784f54f1ad52ee667fb68ec15726c70928a00b7afb1bf8d96a184b875899cd736837fc9bf170f15e6596a3 |
memory/1440-52-0x0000000000400000-0x0000000000880000-memory.dmp
memory/1440-53-0x0000000000400000-0x0000000000880000-memory.dmp
memory/1440-55-0x0000000000400000-0x0000000000880000-memory.dmp
memory/1440-57-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4144-60-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4468-61-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/4252-62-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4252-65-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4252-68-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4252-71-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4252-74-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4252-77-0x0000000000AC0000-0x0000000000B62000-memory.dmp
memory/4252-79-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4252-84-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4252-87-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4252-90-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4252-93-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4252-96-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4252-99-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4252-102-0x0000000000400000-0x0000000000880000-memory.dmp
memory/4252-105-0x0000000000400000-0x0000000000880000-memory.dmp