Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
12/08/2024, 00:22
Static task
static1
Behavioral task
behavioral1
Sample
ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral2
Sample
ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.exe
Resource
win11-20240802-en
General
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Target
ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.exe
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Size
4.2MB
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MD5
160114a920a57d94e72bec263d148e31
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SHA1
f9f5b716c60fc58860b5e277bf45a1e6db1696ed
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SHA256
ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375
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SHA512
4210915d9d982b165a7307a78f29619f68ced17d4b4cc2e2b282c202e46ace59e0882927b9ed54f6543fbc8f78e7b3a62817e18023ba41026998ac00e0cdbf36
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SSDEEP
98304:NoS0ynlNKBUU+JDU2nuNt013kszpB2ahv2dX:WCnTRP801nn52V
Malware Config
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral1/memory/3288-84-0x0000000002580000-0x0000000002622000-memory.dmp family_socks5systemz behavioral1/memory/3288-107-0x0000000002580000-0x0000000002622000-memory.dmp family_socks5systemz behavioral1/memory/3288-108-0x0000000002580000-0x0000000002622000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4028 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp 1456 xulplayer32_64.exe 3288 xulplayer32_64.exe -
Loads dropped DLL 3 IoCs
pid Process 4028 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp 4028 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp 4028 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.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 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.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 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4028 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp 4028 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4028 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3788 wrote to memory of 4028 3788 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.exe 84 PID 3788 wrote to memory of 4028 3788 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.exe 84 PID 3788 wrote to memory of 4028 3788 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.exe 84 PID 4028 wrote to memory of 1456 4028 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp 88 PID 4028 wrote to memory of 1456 4028 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp 88 PID 4028 wrote to memory of 1456 4028 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp 88 PID 4028 wrote to memory of 3288 4028 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp 89 PID 4028 wrote to memory of 3288 4028 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp 89 PID 4028 wrote to memory of 3288 4028 ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp 89
Processes
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C:\Users\Admin\AppData\Local\Temp\ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.exe"C:\Users\Admin\AppData\Local\Temp\ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3788 -
C:\Users\Admin\AppData\Local\Temp\is-OL5G4.tmp\ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp"C:\Users\Admin\AppData\Local\Temp\is-OL5G4.tmp\ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp" /SL5="$50216,4080798,54272,C:\Users\Admin\AppData\Local\Temp\ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.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:4028 -
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:1456
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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:3288
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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-OL5G4.tmp\ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp
Filesize692KB
MD500f15ee57af82fc40ac1ec609d1810a4
SHA16abfae4f73ade5af54d267c02389daf49abd6a51
SHA25620fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847
SHA512f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c
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Filesize
3.5MB
MD5f1dacff0b177e27bbce3a3da80ae5a66
SHA1eb9aac1538cb2320ec19ee1b0cb6d6d4d46cff2e
SHA256665c2718f0231eefd6201c21a474e6d7e8824dbcc1ab841e5d667f934dcc6ea9
SHA5125af242c7fb5ca26ae34980cbb4f5ead3e5e70e2b126f8794daf079d85cb8a7b7ca4fd9c68b0f2b8492a5cd5194efee4c225dc95a818c0c29bf433aaf2f571a27