Analysis
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max time kernel
145s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
11/08/2024, 09:24
Static task
static1
Behavioral task
behavioral1
Sample
a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral2
Sample
a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.exe
Resource
win11-20240802-en
General
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Target
a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.exe
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Size
3.6MB
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MD5
21a10c67389b1574b38032e56c41427a
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SHA1
cb09bf7fd110a0dc8233d7c357e9d9ec88b43a96
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SHA256
a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43
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SHA512
76cb3a1a96a9182f9ad83f7016a8e705e3cc7b326c0d741e3b4050111e96dbbe42c0517b4d0d91e4743de5982988d0656ba6f5548c14ec5106940b3297ed569a
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SSDEEP
98304:N7s7N2zcpBoX3JeeRinc5y2Gy7duOfi1nJdRR:ZIpBoXZeJnOyR6nfi1nJd
Malware Config
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral1/memory/312-77-0x0000000002690000-0x0000000002732000-memory.dmp family_socks5systemz behavioral1/memory/312-101-0x0000000002690000-0x0000000002732000-memory.dmp family_socks5systemz behavioral1/memory/312-102-0x0000000002690000-0x0000000002732000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 552 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp 4184 xulplayer.exe 312 xulplayer.exe -
Loads dropped DLL 1 IoCs
pid Process 552 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.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 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language xulplayer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language xulplayer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 552 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp 552 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 552 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2912 wrote to memory of 552 2912 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.exe 85 PID 2912 wrote to memory of 552 2912 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.exe 85 PID 2912 wrote to memory of 552 2912 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.exe 85 PID 552 wrote to memory of 4184 552 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp 88 PID 552 wrote to memory of 4184 552 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp 88 PID 552 wrote to memory of 4184 552 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp 88 PID 552 wrote to memory of 312 552 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp 89 PID 552 wrote to memory of 312 552 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp 89 PID 552 wrote to memory of 312 552 a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp 89
Processes
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C:\Users\Admin\AppData\Local\Temp\a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.exe"C:\Users\Admin\AppData\Local\Temp\a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912 -
C:\Users\Admin\AppData\Local\Temp\is-Q47QU.tmp\a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp"C:\Users\Admin\AppData\Local\Temp\is-Q47QU.tmp\a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp" /SL5="$7026E,3548736,54272,C:\Users\Admin\AppData\Local\Temp\a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.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:552 -
C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4184
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C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:312
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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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C:\Users\Admin\AppData\Local\Temp\is-Q47QU.tmp\a711a5191fd1bbbef8e72ffa7bb8682c149b99305d6a797746d06ca56a19eb43.tmp
Filesize692KB
MD5d541b0e8d95d631badc9ff20ed59afdd
SHA1617063202f52daa60cb4a04f505418b2e4778d18
SHA2569450c883637e2515bfd934548aa48e6be252bf2ec7527e60f21ff3cb6a40afad
SHA512edeaf7d0c0d6ec805f446f87684b18b5d9fbbd25af506824127e781c231d08357b0fc53dc2c103e89c170c00df6644d635ea0776cdb2b780ecc027e183bf9b6c
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Filesize
3.9MB
MD5c5df4bd13553cc8a838a865351694225
SHA19e58e047defde20084d3de6017e9491b3fa9c847
SHA2561b1af5dc6a41c08cbf9670da851c53d588df0904c2a580474a712c5389484184
SHA5122ac7b31a2154d7e3af11fd715f3609d687e3cb440938c66d2f175fa26d5da745e09d2d6fe471a8bad179321b963c44eeff7f5ad9d6598320edf3373ef5c839a9