Analysis
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max time kernel
141s -
max time network
131s -
platform
windows11-21h2_x64 -
resource
win11-20240802-en -
resource tags
arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system -
submitted
11/08/2024, 23:53
Static task
static1
Behavioral task
behavioral1
Sample
03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral2
Sample
03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.exe
Resource
win11-20240802-en
General
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Target
03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.exe
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Size
4.0MB
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MD5
17edde52232e2a177085a54c374f9316
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SHA1
58cae2aa8770fb99b80e59858513d1e4cfeab082
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SHA256
03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed
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SHA512
94a6ac98fec5429e230c4e9de490887df490842bc32e74e66696cd72db9b06182637a82d1170d1edd43f4bd33db71b17871048ea8981524292bd37a2720c98bc
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SSDEEP
98304:NjztowQcdjrZtmMx80vQbAW3k/lTkRJ0ZvGNRB+XDoeVMPrXdX:xztfptmMUbA7lCEWvRPrXV
Malware Config
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral2/memory/4688-81-0x0000000002640000-0x00000000026E2000-memory.dmp family_socks5systemz behavioral2/memory/4688-106-0x0000000002640000-0x00000000026E2000-memory.dmp family_socks5systemz behavioral2/memory/4688-107-0x0000000002640000-0x00000000026E2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 1908 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp 3456 xulplayer32_64.exe 4688 xulplayer32_64.exe -
Loads dropped DLL 3 IoCs
pid Process 1908 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp 1908 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp 1908 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 45.155.250.90 -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language xulplayer32_64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language xulplayer32_64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1908 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp 1908 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1908 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2656 wrote to memory of 1908 2656 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.exe 80 PID 2656 wrote to memory of 1908 2656 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.exe 80 PID 2656 wrote to memory of 1908 2656 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.exe 80 PID 1908 wrote to memory of 3456 1908 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp 82 PID 1908 wrote to memory of 3456 1908 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp 82 PID 1908 wrote to memory of 3456 1908 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp 82 PID 1908 wrote to memory of 4688 1908 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp 83 PID 1908 wrote to memory of 4688 1908 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp 83 PID 1908 wrote to memory of 4688 1908 03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp 83
Processes
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C:\Users\Admin\AppData\Local\Temp\03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.exe"C:\Users\Admin\AppData\Local\Temp\03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656 -
C:\Users\Admin\AppData\Local\Temp\is-K2KF5.tmp\03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp"C:\Users\Admin\AppData\Local\Temp\is-K2KF5.tmp\03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp" /SL5="$802B2,3918803,54272,C:\Users\Admin\AppData\Local\Temp\03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1908 -
C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3456
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C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4688
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
13KB
MD5a813d18268affd4763dde940246dc7e5
SHA1c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4
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C:\Users\Admin\AppData\Local\Temp\is-K2KF5.tmp\03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp
Filesize692KB
MD500f15ee57af82fc40ac1ec609d1810a4
SHA16abfae4f73ade5af54d267c02389daf49abd6a51
SHA25620fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847
SHA512f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c
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Filesize
3.3MB
MD526c70e0585ff2d9033c45dfbea69e48e
SHA1709389e97c110965afa91e1b953c41320dc373ff
SHA256cfd651986d920a82ff8e3588e5ef80febefeed33abf701401234d0f8cca62fbc
SHA5129a56c2c1792814c6f23511038e0f8c18d6572bc60559f336ef0875f13b4adab7bb32f6cda3cbe043d24523b57589f10f46d0a64f472622897440b92e4b4375aa