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Analysis
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max time kernel
147s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
23/05/2024, 19:42
Static task
static1
Behavioral task
behavioral1
Sample
ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.exe
Resource
win11-20240426-en
General
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Target
ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.exe
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Size
4.5MB
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MD5
452df1ddf452db76265d93eee3c5a524
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SHA1
d0d52b1c09509e4481f40ae479f3a65e34689fe9
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SHA256
ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9
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SHA512
86a7778cb03bf3f483f0c70742b2869c746bc574e516fe9f56b858447d24f5751c8080eb4fa15ae758e477f5e98fdd83c0a1c844f7b6f7dca5b4215e53ca23e0
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SSDEEP
98304:m/ByB4CMftNn9wc74TIi3CwP43ngSA6WA52I1Aro9mVq8NAQNt/DF9R:HqfDn9374TN37tRDA5A898NhhR
Malware Config
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral2/memory/1644-87-0x0000000000990000-0x0000000000A32000-memory.dmp family_socks5systemz behavioral2/memory/1644-111-0x0000000000990000-0x0000000000A32000-memory.dmp family_socks5systemz behavioral2/memory/1644-112-0x0000000000990000-0x0000000000A32000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4628 ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.tmp 3200 cybersoundaudiodirector.exe 1644 cybersoundaudiodirector.exe -
Loads dropped DLL 1 IoCs
pid Process 4628 ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4628 ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3108 wrote to memory of 4628 3108 ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.exe 78 PID 3108 wrote to memory of 4628 3108 ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.exe 78 PID 3108 wrote to memory of 4628 3108 ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.exe 78 PID 4628 wrote to memory of 3200 4628 ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.tmp 79 PID 4628 wrote to memory of 3200 4628 ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.tmp 79 PID 4628 wrote to memory of 3200 4628 ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.tmp 79 PID 4628 wrote to memory of 1644 4628 ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.tmp 80 PID 4628 wrote to memory of 1644 4628 ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.tmp 80 PID 4628 wrote to memory of 1644 4628 ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.tmp 80
Processes
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C:\Users\Admin\AppData\Local\Temp\ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.exe"C:\Users\Admin\AppData\Local\Temp\ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3108 -
C:\Users\Admin\AppData\Local\Temp\is-AIBUQ.tmp\ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.tmp"C:\Users\Admin\AppData\Local\Temp\is-AIBUQ.tmp\ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.tmp" /SL5="$4020E,4458175,54272,C:\Users\Admin\AppData\Local\Temp\ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4628 -
C:\Users\Admin\AppData\Local\CyberSound AudioDirector\cybersoundaudiodirector.exe"C:\Users\Admin\AppData\Local\CyberSound AudioDirector\cybersoundaudiodirector.exe" -i3⤵
- Executes dropped EXE
PID:3200
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C:\Users\Admin\AppData\Local\CyberSound AudioDirector\cybersoundaudiodirector.exe"C:\Users\Admin\AppData\Local\CyberSound AudioDirector\cybersoundaudiodirector.exe" -s3⤵
- Executes dropped EXE
PID:1644
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.5MB
MD50c1b7352c43e558562ee7dd2c85108a4
SHA1399b714f784a97c8ce935c0905384b627a3c6016
SHA256cc719dd2c39a09f7f621585d9c5e84a011d40bcd9d8a3a4a26d2b4d7490b7612
SHA5128e05837505c80147c972a3fea9d0edf3c514d46b7ec9d8a4e740892a5d1269aae945c5d6606be311f702efc1579c80eebb487b0c93c31f2459e54b913b24bea3
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C:\Users\Admin\AppData\Local\Temp\is-AIBUQ.tmp\ab118b0a037d05ca37539e71ccd4502f2635785f949808ea8f04f2232720edb9.tmp
Filesize680KB
MD59a66562af1741b32df6da2623d7c5495
SHA1817eb882a12486fe41c650afc3e032f31006c53d
SHA2560f4986165bde4f9ed80bb873e8c398c817140b12685d6cd81cd1723100ebe0c7
SHA51292b996173f843c9cf1dcc16f3e3715478905bd9d9ff35c7472b8575eb87baa779d60a363f8da09070c9df2872947de60487040a1f2034681a13796462af2450c
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63