Analysis
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max time kernel
144s -
max time network
143s -
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, 12:37
Static task
static1
Behavioral task
behavioral1
Sample
aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral2
Sample
aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.exe
Resource
win11-20240802-en
General
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Target
aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.exe
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Size
3.4MB
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MD5
aeee9e2312f78fb246028f593bb46d09
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SHA1
999c39634579881adb75b2ac4680b565f1583172
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SHA256
aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e
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SHA512
4be53fefc17ca4114c63aadea30004a7cfad11a505dba023729a1b59702a4e89cb9ab007120124829f63c3c72f2cd2d58cfef112735ba6fd3765cc8243f79df2
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SSDEEP
98304:N3ZfwBuCvbqC0i9hjr2xL7rA86di+c37dh:ZZfOuCtdjqPA5ErL
Malware Config
Signatures
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Detect Socks5Systemz Payload 1 IoCs
resource yara_rule behavioral2/memory/5608-79-0x0000000000A50000-0x0000000000AF2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 2924 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp 2804 xulplayer32.exe 5608 xulplayer32.exe -
Loads dropped DLL 1 IoCs
pid Process 2924 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.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 xulplayer32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language xulplayer32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2924 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp 2924 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2924 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4712 wrote to memory of 2924 4712 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.exe 81 PID 4712 wrote to memory of 2924 4712 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.exe 81 PID 4712 wrote to memory of 2924 4712 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.exe 81 PID 2924 wrote to memory of 2804 2924 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp 83 PID 2924 wrote to memory of 2804 2924 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp 83 PID 2924 wrote to memory of 2804 2924 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp 83 PID 2924 wrote to memory of 5608 2924 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp 84 PID 2924 wrote to memory of 5608 2924 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp 84 PID 2924 wrote to memory of 5608 2924 aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp 84
Processes
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C:\Users\Admin\AppData\Local\Temp\aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.exe"C:\Users\Admin\AppData\Local\Temp\aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4712 -
C:\Users\Admin\AppData\Local\Temp\is-6T9LV.tmp\aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp"C:\Users\Admin\AppData\Local\Temp\is-6T9LV.tmp\aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp" /SL5="$13022C,3310936,54272,C:\Users\Admin\AppData\Local\Temp\aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.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:2924 -
C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32.exe"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2804
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C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32.exe"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5608
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\is-6T9LV.tmp\aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp
Filesize692KB
MD54a034cc8809b92775041cc5a46c52ab0
SHA13f2c748bf00a2aa6f3a86c6dfd8a3d667007a54d
SHA2564dfae16c80e15d6e45b60b5b847e1a641af184e3e06727fc3406355de9227e60
SHA512e1d4c9bff206800681a17b4487978a290d365a6593678741b6924394217bc352f1132add01e8e90b9b1b78f1f3bd606c2ff51955c8673503c5e28fb04afc71f6
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
3.1MB
MD5417ddf93714ba30253af108796907a18
SHA14e9c6c65ff0294eb4a3c68ecbc245cd3fda1e15f
SHA256a8037cc1f34a5f69fd5afce05634245e3bd6cd05dd750dcc40a25a721579b2a6
SHA5126e204ccb061b87e041789ce12f4cfe9143f42f4c222c6c64efb8da13330dd651b69ce0fbfde3c942e7c3a5d43c27369319f1f495e24f61adb6975afb7ca8f5f7