Analysis Overview
SHA256
8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b
Threat Level: Known bad
The file 8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b 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 WriteProcessMemory
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-10 20:25
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-10 20:25
Reported
2024-08-10 20:28
Platform
win7-20240708-en
Max time kernel
150s
Max time network
136s
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-LM9C4.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.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\Temp\is-LM9C4.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.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\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-LM9C4.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-LM9C4.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.tmp | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-LM9C4.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.exe
"C:\Users\Admin\AppData\Local\Temp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.exe"
C:\Users\Admin\AppData\Local\Temp\is-LM9C4.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.tmp
"C:\Users\Admin\AppData\Local\Temp\is-LM9C4.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.tmp" /SL5="$30144,4588230,54272,C:\Users\Admin\AppData\Local\Temp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.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 |
| RU | 152.89.198.214:53 | bbiirsn.com | udp |
| CH | 185.196.8.214:80 | bbiirsn.com | tcp |
Files
memory/2156-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2156-3-0x0000000000401000-0x000000000040B000-memory.dmp
\Users\Admin\AppData\Local\Temp\is-LM9C4.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.tmp
| MD5 | 85fc5b8836d8625fbfa40a092386e645 |
| SHA1 | a90bb83f5d8d024bb357a44682267a50406071d6 |
| SHA256 | 6dda4c9c34d1898b592ebeccee9f4b2a2bffefd68296da6310435e13fb63d950 |
| SHA512 | c50e53c2c695c7ba24b4cc2c2f958e1e9ce4eea9b541684ea41c7cae513919bb80171dcaaf1c18a8f37221737e6a1f8ba0881a224abd3dd09407d0c4edb96aae |
\Users\Admin\AppData\Local\Temp\is-R7VLH.tmp\_isetup\_shfoldr.dll
| MD5 | 92dc6ef532fbb4a5c3201469a5b5eb63 |
| SHA1 | 3e89ff837147c16b4e41c30d6c796374e0b8e62c |
| SHA256 | 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87 |
| SHA512 | 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3 |
memory/2684-15-0x0000000000400000-0x00000000004BD000-memory.dmp
\Users\Admin\AppData\Local\Temp\is-R7VLH.tmp\_isetup\_isdecmp.dll
| MD5 | a813d18268affd4763dde940246dc7e5 |
| SHA1 | c7366e1fd925c17cc6068001bd38eaef5b42852f |
| SHA256 | e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64 |
| SHA512 | b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4 |
\Users\Admin\AppData\Local\Temp\is-R7VLH.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
| MD5 | 2ff96fc8212a5ea6781036c03d92bf66 |
| SHA1 | cfd302f29766e9801b7e858d4257defc26e70de3 |
| SHA256 | 684ee3dbb9a2997433acaa9d878e5e48ad585f0ac0d19fbcb5ff05caf47e0087 |
| SHA512 | 26f4c894ef2dee24ccac4a535e05272ecec6a94249582514a5b19d69327b687305b224c092e4d9667e92f8979e213873b51e789413cf87935d84ed1eff3e6ab0 |
memory/2684-59-0x0000000004770000-0x0000000004BB4000-memory.dmp
memory/2876-60-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2876-61-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2876-64-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2744-66-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2156-68-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2684-69-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/2744-72-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2744-75-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2684-76-0x0000000004770000-0x0000000004BB4000-memory.dmp
memory/2744-77-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2744-82-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2744-85-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2744-88-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2744-89-0x0000000002440000-0x00000000024E2000-memory.dmp
memory/2744-93-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2744-98-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2744-101-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2744-103-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2744-105-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2744-110-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2744-114-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2744-115-0x0000000000400000-0x0000000000844000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-10 20:25
Reported
2024-08-10 20:28
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 |
Socks5Systemz
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-9BN1J.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.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 | 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\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\is-9BN1J.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.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 |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-9BN1J.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-9BN1J.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.tmp | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-9BN1J.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.exe
"C:\Users\Admin\AppData\Local\Temp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.exe"
C:\Users\Admin\AppData\Local\Temp\is-9BN1J.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.tmp
"C:\Users\Admin\AppData\Local\Temp\is-9BN1J.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.tmp" /SL5="$B01FE,4588230,54272,C:\Users\Admin\AppData\Local\Temp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.144.22.2.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 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.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 | 138.201.86.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
| HK | 141.98.234.31:53 | botlioi.com | udp |
| CH | 185.196.8.214:80 | botlioi.com | tcp |
| US | 8.8.8.8:53 | 31.234.98.141.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 214.8.196.185.in-addr.arpa | udp |
Files
memory/4936-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4936-2-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-9BN1J.tmp\8aff50e7ca55466a7adeeb48f973421fbbf98ec0d2c3e133325fffcef512033b.tmp
| MD5 | 85fc5b8836d8625fbfa40a092386e645 |
| SHA1 | a90bb83f5d8d024bb357a44682267a50406071d6 |
| SHA256 | 6dda4c9c34d1898b592ebeccee9f4b2a2bffefd68296da6310435e13fb63d950 |
| SHA512 | c50e53c2c695c7ba24b4cc2c2f958e1e9ce4eea9b541684ea41c7cae513919bb80171dcaaf1c18a8f37221737e6a1f8ba0881a224abd3dd09407d0c4edb96aae |
memory/4576-13-0x0000000000400000-0x00000000004BD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-48N8B.tmp\_isetup\_isdecmp.dll
| MD5 | a813d18268affd4763dde940246dc7e5 |
| SHA1 | c7366e1fd925c17cc6068001bd38eaef5b42852f |
| SHA256 | e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64 |
| SHA512 | b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4 |
C:\Users\Admin\AppData\Local\Temp\is-48N8B.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
| MD5 | 2ff96fc8212a5ea6781036c03d92bf66 |
| SHA1 | cfd302f29766e9801b7e858d4257defc26e70de3 |
| SHA256 | 684ee3dbb9a2997433acaa9d878e5e48ad585f0ac0d19fbcb5ff05caf47e0087 |
| SHA512 | 26f4c894ef2dee24ccac4a535e05272ecec6a94249582514a5b19d69327b687305b224c092e4d9667e92f8979e213873b51e789413cf87935d84ed1eff3e6ab0 |
memory/4640-58-0x0000000000400000-0x0000000000844000-memory.dmp
memory/4640-59-0x0000000000400000-0x0000000000844000-memory.dmp
memory/4640-62-0x0000000000400000-0x0000000000844000-memory.dmp
memory/4640-63-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-66-0x0000000000400000-0x0000000000844000-memory.dmp
memory/4936-67-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4576-68-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/2724-69-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-72-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-75-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-78-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-81-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-84-0x00000000009B0000-0x0000000000A52000-memory.dmp
memory/2724-88-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-91-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-94-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-97-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-100-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-103-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-106-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-110-0x0000000000400000-0x0000000000844000-memory.dmp
memory/2724-113-0x0000000000400000-0x0000000000844000-memory.dmp