Analysis Overview
SHA256
51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc
Threat Level: Known bad
The file 51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc was found to be: Known bad.
Malicious Activity Summary
Detect Socks5Systemz Payload
Socks5Systemz
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 behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-04 12:07
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-04 12:07
Reported
2024-08-04 12:09
Platform
win10v2004-20240802-en
Max time kernel
143s
Max time network
130s
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-M89F4.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-M89F4.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.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\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\is-M89F4.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-M89F4.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-M89F4.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-M89F4.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.exe
"C:\Users\Admin\AppData\Local\Temp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.exe"
C:\Users\Admin\AppData\Local\Temp\is-M89F4.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp
"C:\Users\Admin\AppData\Local\Temp\is-M89F4.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp" /SL5="$70210,3476524,54272,C:\Users\Admin\AppData\Local\Temp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.exe"
C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe
"C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe" -i
C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe
"C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe" -s
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4336,i,8293235976513689021,7261015831736501466,262144 --variations-seed-version --mojo-platform-channel-handle=1904 /prefetch:8
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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| HK | 141.98.234.31:53 | dtalcub.info | udp |
| US | 8.8.8.8:53 | 31.234.98.141.in-addr.arpa | udp |
| CH | 185.196.8.214:80 | dtalcub.info | tcp |
| US | 8.8.8.8:53 | 214.8.196.185.in-addr.arpa | udp |
| NL | 89.105.201.183:2023 | tcp | |
| US | 8.8.8.8:53 | 183.201.105.89.in-addr.arpa | udp |
Files
memory/1900-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1900-2-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-M89F4.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp
| MD5 | 389209b27cb27183ccb7cc1a1bf4a6f1 |
| SHA1 | 4ee1ed088549b034080a2223a3118e5ed09f0e40 |
| SHA256 | 1d47cc604d5d25213daeaec3072a1d35cd167e354acb18a925d1e88c87196654 |
| SHA512 | 17a87b242b0241b6a0fd707eab0f50fe869aad23e26aa64c63963c892b70484e5fa9c5b8ce313106f15ee8798387db5abdbcd1e3060ed4fa84da1c9ce4960a56 |
memory/5004-13-0x0000000000400000-0x00000000004BD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-H9HTU.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe
| MD5 | 64e42bf693e7188b1fafdbfc477d574e |
| SHA1 | 7dcbb6d56bf4d71bc49360e98b1f10673fd0796d |
| SHA256 | efce0b3184e216d49090f962d413f3446c58f2a6fcd328cf8b5c18141f58f5ab |
| SHA512 | d8f0968c73ca2f365cb847909dc491483fa1ebc66a42fbbd62cdc3205514776cae794f8b7a39313e6de52a9f9a1d6b4cf0091c855794af317c9484663d4f3934 |
memory/4640-52-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4640-53-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4640-55-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-59-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/1900-60-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5004-61-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/4468-62-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-65-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-68-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-71-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-74-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-77-0x0000000002520000-0x00000000025C2000-memory.dmp
memory/4468-79-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-84-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-87-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-90-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-93-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-96-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-99-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-100-0x0000000002520000-0x00000000025C2000-memory.dmp
memory/4468-101-0x0000000002520000-0x00000000025C2000-memory.dmp
memory/4468-105-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4468-108-0x0000000000400000-0x00000000006C5000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-04 12:07
Reported
2024-08-04 12:09
Platform
win11-20240802-en
Max time kernel
142s
Max time network
130s
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-O01FH.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-O01FH.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp | N/A |
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\Temp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\is-O01FH.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-O01FH.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-O01FH.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-O01FH.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.exe
"C:\Users\Admin\AppData\Local\Temp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.exe"
C:\Users\Admin\AppData\Local\Temp\is-O01FH.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp
"C:\Users\Admin\AppData\Local\Temp\is-O01FH.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp" /SL5="$5020A,3476524,54272,C:\Users\Admin\AppData\Local\Temp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.exe"
C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe
"C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe" -i
C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe
"C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe" -s
Network
| Country | Destination | Domain | Proto |
| US | 52.111.227.11:443 | tcp | |
| RU | 152.89.198.214:53 | dlnwqke.info | udp |
| CH | 185.196.8.214:80 | dlnwqke.info | tcp |
| NL | 45.156.23.96:2023 | tcp | |
| US | 8.8.8.8:53 | 96.23.156.45.in-addr.arpa | udp |
Files
memory/5936-1-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5936-2-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-O01FH.tmp\51b2cfa5d0606a22eaea0cc0d63573a689475fbeb5e6736dd8a189b4563b22cc.tmp
| MD5 | 389209b27cb27183ccb7cc1a1bf4a6f1 |
| SHA1 | 4ee1ed088549b034080a2223a3118e5ed09f0e40 |
| SHA256 | 1d47cc604d5d25213daeaec3072a1d35cd167e354acb18a925d1e88c87196654 |
| SHA512 | 17a87b242b0241b6a0fd707eab0f50fe869aad23e26aa64c63963c892b70484e5fa9c5b8ce313106f15ee8798387db5abdbcd1e3060ed4fa84da1c9ce4960a56 |
memory/2324-16-0x0000000000400000-0x00000000004BD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-KKPMN.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe
| MD5 | 64e42bf693e7188b1fafdbfc477d574e |
| SHA1 | 7dcbb6d56bf4d71bc49360e98b1f10673fd0796d |
| SHA256 | efce0b3184e216d49090f962d413f3446c58f2a6fcd328cf8b5c18141f58f5ab |
| SHA512 | d8f0968c73ca2f365cb847909dc491483fa1ebc66a42fbbd62cdc3205514776cae794f8b7a39313e6de52a9f9a1d6b4cf0091c855794af317c9484663d4f3934 |
memory/4360-52-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4360-55-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4360-53-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4360-57-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-60-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/5936-61-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2324-62-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/3316-63-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-66-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-67-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-70-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-73-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-76-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-79-0x0000000000AE0000-0x0000000000B82000-memory.dmp
memory/3316-82-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-87-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-90-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-93-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-96-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-99-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-102-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-103-0x0000000000AE0000-0x0000000000B82000-memory.dmp
memory/3316-104-0x0000000000AE0000-0x0000000000B82000-memory.dmp
memory/3316-108-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3316-111-0x0000000000400000-0x00000000006C5000-memory.dmp