Analysis
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max time kernel
141s -
max time network
128s -
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, 21:46
Static task
static1
Behavioral task
behavioral1
Sample
238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral2
Sample
238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.exe
Resource
win11-20240802-en
General
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Target
238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.exe
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Size
4.2MB
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MD5
a5ad3ecd27b44ace6331d0f2ef24e82b
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SHA1
5886701906bdbb80ddb239bd8a525f60d15d6582
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SHA256
238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540
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SHA512
629cf976574aeb82e7c09e59c162c39ed0bf83954dad585b755e3f1a8864d1122d4539d63a536551047f426a2013636de9bc51f79137a3109c099ecb294b72c3
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SSDEEP
98304:NdhBCGKiWTRD9fZLK4jIKAf2aTiEus/U/OdX:bhBCOop9hvjCuaT6sMOV
Malware Config
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral2/memory/1160-84-0x0000000000AB0000-0x0000000000B52000-memory.dmp family_socks5systemz behavioral2/memory/1160-108-0x0000000000AB0000-0x0000000000B52000-memory.dmp family_socks5systemz behavioral2/memory/1160-109-0x0000000000AB0000-0x0000000000B52000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4332 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp 4136 xulplayer32_64.exe 1160 xulplayer32_64.exe -
Loads dropped DLL 3 IoCs
pid Process 4332 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp 4332 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp 4332 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.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 91.211.247.248 -
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 xulplayer32_64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language xulplayer32_64.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4332 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp 4332 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4332 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1952 wrote to memory of 4332 1952 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.exe 78 PID 1952 wrote to memory of 4332 1952 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.exe 78 PID 1952 wrote to memory of 4332 1952 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.exe 78 PID 4332 wrote to memory of 4136 4332 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp 79 PID 4332 wrote to memory of 4136 4332 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp 79 PID 4332 wrote to memory of 4136 4332 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp 79 PID 4332 wrote to memory of 1160 4332 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp 80 PID 4332 wrote to memory of 1160 4332 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp 80 PID 4332 wrote to memory of 1160 4332 238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp 80
Processes
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C:\Users\Admin\AppData\Local\Temp\238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.exe"C:\Users\Admin\AppData\Local\Temp\238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Users\Admin\AppData\Local\Temp\is-M40N6.tmp\238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp"C:\Users\Admin\AppData\Local\Temp\is-M40N6.tmp\238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp" /SL5="$60102,4102327,54272,C:\Users\Admin\AppData\Local\Temp\238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.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:4332 -
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:4136
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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:1160
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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-M40N6.tmp\238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp
Filesize692KB
MD500f15ee57af82fc40ac1ec609d1810a4
SHA16abfae4f73ade5af54d267c02389daf49abd6a51
SHA25620fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847
SHA512f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c
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Filesize
3.5MB
MD5126da95d5b058cdc8cfc5178f7a3a85f
SHA14ca6728214dea16427ea6ba446813531b3a66eee
SHA256f329de6e3b2598a2d504eb4b84eab83aeb216f987b518195cbb2b679634b14d5
SHA51262027637e0ff9facd9658ac3e3353944852b142ed1970782f6b72f955c536ac69d11a3d73d3fa025f840df9207eae30aeba14ae65db89dfc5df4955fa4e598c8