Analysis Overview
SHA256
73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86
Threat Level: Known bad
The file 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86 was found to be: Known bad.
Malicious Activity Summary
Socks5Systemz
Detect Socks5Systemz Payload
Unexpected DNS network traffic destination
Executes dropped EXE
Loads dropped DLL
Checks installed software on the system
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-30 14:38
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-30 14:38
Reported
2024-05-30 14:41
Platform
win10v2004-20240508-en
Max time kernel
148s
Max time network
151s
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-D7KJL.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-D7KJL.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.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
Enumerates physical storage devices
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-D7KJL.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe
"C:\Users\Admin\AppData\Local\Temp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe"
C:\Users\Admin\AppData\Local\Temp\is-D7KJL.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp
"C:\Users\Admin\AppData\Local\Temp\is-D7KJL.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp" /SL5="$90066,4741370,54272,C:\Users\Admin\AppData\Local\Temp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe"
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.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 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.121:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| NL | 23.62.61.138:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 121.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.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 | 134.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| RU | 152.89.198.214:53 | ddltuik.info | udp |
| US | 8.8.8.8:53 | 214.198.89.152.in-addr.arpa | udp |
| BG | 79.110.49.184:80 | ddltuik.info | tcp |
| NL | 79.132.128.125:2023 | tcp | |
| US | 8.8.8.8:53 | 125.128.132.79.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 184.49.110.79.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.73.42.20.in-addr.arpa | udp |
Files
memory/4632-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4632-3-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-D7KJL.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp
| MD5 | 281b7192d7fae9f9f4f11ad30842bfaa |
| SHA1 | 35ca07cc4d95c2132eb31152974417ba96e51d43 |
| SHA256 | fca779fea2596da2a6f434cc9df9e6b44d1c176668b5c80bd76c00e91e478a4c |
| SHA512 | a63c9a298974c93dc4eb02e360d45db077f16a6921ac42bedb59a9fe46156fb50f46cb109d97ded3039300d3e38f4370bda0665b1013b3e662c6aec927635ef2 |
memory/1500-12-0x0000000000400000-0x00000000004BA000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-88T2F.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
| MD5 | 53eda1ebe9a77073ee7f0769f3065f63 |
| SHA1 | 7599a89cbb70b20eb1e37c3a89147d7667a93af0 |
| SHA256 | 60415657df6dacf7dcd2dd30096039baf2501cdbfc07610207315f27712c6d51 |
| SHA512 | a712a58591246f34b3a723e3848b012434631d1c732e82ef86a1e801af299f8f65e22458b29e0cd8a74b3dc46f4af359e4d5fdf44a2070e2f59d1a4fecc6ee67 |
memory/4276-59-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4276-63-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4276-60-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4276-65-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-68-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-69-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4632-70-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1500-71-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1692-72-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-75-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-76-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-79-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-82-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-85-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-88-0x00000000008A0000-0x0000000000942000-memory.dmp
memory/1692-90-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-96-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-99-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-102-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-105-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-108-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-111-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-112-0x00000000008A0000-0x0000000000942000-memory.dmp
memory/1692-113-0x00000000008A0000-0x0000000000942000-memory.dmp
memory/1692-117-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1692-120-0x0000000000400000-0x0000000000745000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-30 14:38
Reported
2024-05-30 14:41
Platform
win11-20240426-en
Max time kernel
141s
Max time network
150s
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-S0AFH.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-S0AFH.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.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
Enumerates physical storage devices
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-S0AFH.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe
"C:\Users\Admin\AppData\Local\Temp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe"
C:\Users\Admin\AppData\Local\Temp\is-S0AFH.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp
"C:\Users\Admin\AppData\Local\Temp\is-S0AFH.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp" /SL5="$50072,4741370,54272,C:\Users\Admin\AppData\Local\Temp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe"
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s
Network
| Country | Destination | Domain | Proto |
| RU | 152.89.198.214:53 | befibuu.com | udp |
| BG | 79.110.49.184:80 | befibuu.com | tcp |
| RO | 45.11.181.104:2023 | tcp | |
| US | 8.8.8.8:53 | 214.198.89.152.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 184.49.110.79.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.181.11.45.in-addr.arpa | udp |
Files
memory/2240-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2240-2-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-S0AFH.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp
| MD5 | 281b7192d7fae9f9f4f11ad30842bfaa |
| SHA1 | 35ca07cc4d95c2132eb31152974417ba96e51d43 |
| SHA256 | fca779fea2596da2a6f434cc9df9e6b44d1c176668b5c80bd76c00e91e478a4c |
| SHA512 | a63c9a298974c93dc4eb02e360d45db077f16a6921ac42bedb59a9fe46156fb50f46cb109d97ded3039300d3e38f4370bda0665b1013b3e662c6aec927635ef2 |
memory/3172-12-0x0000000000400000-0x00000000004BA000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-PGUMU.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
| MD5 | 53eda1ebe9a77073ee7f0769f3065f63 |
| SHA1 | 7599a89cbb70b20eb1e37c3a89147d7667a93af0 |
| SHA256 | 60415657df6dacf7dcd2dd30096039baf2501cdbfc07610207315f27712c6d51 |
| SHA512 | a712a58591246f34b3a723e3848b012434631d1c732e82ef86a1e801af299f8f65e22458b29e0cd8a74b3dc46f4af359e4d5fdf44a2070e2f59d1a4fecc6ee67 |
memory/3756-60-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3756-59-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3756-65-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3756-64-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-68-0x0000000000400000-0x0000000000745000-memory.dmp
memory/2240-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3172-70-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3512-71-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-74-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-77-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-80-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-83-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-84-0x0000000002510000-0x00000000025B2000-memory.dmp
memory/3512-89-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-94-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-97-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-100-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-103-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-106-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-109-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-110-0x0000000002510000-0x00000000025B2000-memory.dmp
memory/3512-111-0x0000000002510000-0x00000000025B2000-memory.dmp
memory/3512-115-0x0000000000400000-0x0000000000745000-memory.dmp
memory/3512-118-0x0000000000400000-0x0000000000745000-memory.dmp