Analysis
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max time kernel
145s -
max time network
148s -
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, 05:28
Static task
static1
Behavioral task
behavioral1
Sample
dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral2
Sample
dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe
Resource
win11-20240802-en
General
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Target
dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe
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Size
3.8MB
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MD5
29cbf8f374f4c0f73e452762a441f3ba
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SHA1
09b1c07cca00bc366b4c04fbcdcc618adc7f1326
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SHA256
dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662
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SHA512
98819171427e40c3daf80a282975e405243ec2ae0e9b308b4e4773e4ce9f6c8f19ca652dd63d8a2f6651acfc1430189e1cac26ce5316cc3319cafd13d2cd0888
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SSDEEP
49152:1v7c6K9KMyjXS5YYOZDg45sXV6G8oaKk2P2nmeYUSUobedhkoHHOo/ureI9QSKNo:NIUhLYj45k5RQyvcLWT9srCUAEdf4
Malware Config
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral2/memory/3208-80-0x0000000000A10000-0x0000000000AB2000-memory.dmp family_socks5systemz behavioral2/memory/3208-103-0x0000000000A10000-0x0000000000AB2000-memory.dmp family_socks5systemz behavioral2/memory/3208-104-0x0000000000A10000-0x0000000000AB2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4784 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp 4048 xulplayer.exe 3208 xulplayer.exe -
Loads dropped DLL 1 IoCs
pid Process 4784 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.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 xulplayer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language xulplayer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4784 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp 4784 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4784 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1648 wrote to memory of 4784 1648 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe 78 PID 1648 wrote to memory of 4784 1648 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe 78 PID 1648 wrote to memory of 4784 1648 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe 78 PID 4784 wrote to memory of 4048 4784 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp 79 PID 4784 wrote to memory of 4048 4784 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp 79 PID 4784 wrote to memory of 4048 4784 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp 79 PID 4784 wrote to memory of 3208 4784 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp 80 PID 4784 wrote to memory of 3208 4784 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp 80 PID 4784 wrote to memory of 3208 4784 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp 80
Processes
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C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe"C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1648 -
C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp"C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp" /SL5="$602DE,3721583,54272,C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.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:4784 -
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:4048
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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:3208
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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-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp
Filesize692KB
MD55e86b0ec372d2fc1fd230de780e7e967
SHA1b4f60e0014da39c3e7a443deaaaf086aa01f7139
SHA256e8cdcf3e17f27f736c3a131ea7510764087d28909effa27f03de54746452956f
SHA512759f5874ac78a3d630350bbf22a1393cfe41d0914d43452292bce139b6063c045f0f7582aefa197c8c9e37f1bf4e3dd84ce5f5b792bdbabd5e62c419d1b4541d
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Filesize
4.1MB
MD50f8756b14690ceb6a9f3095dbef3d703
SHA16b58c27a523847790b1431602504d02fb0fc3db7
SHA256a7d66fb58147e7b2ce5287e9ce2ba71e9fdbaaa003bf5cc697a8a01109dd43bc
SHA512c416605b87727c36b67f9883be89e6a51153c20a5fa7003392291de47eab2111928970f6ffbf72f182607b17d919fa016d7dfcb8fb0bf850c603338b233b176c