Analysis
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max time kernel
141s -
max time network
126s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
23/03/2024, 14:53
Static task
static1
Behavioral task
behavioral1
Sample
4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral2
Sample
4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.exe
Resource
win11-20240221-en
General
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Target
4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.exe
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Size
2.0MB
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MD5
8d2f10057105ec032c4aab9f1d3b7a25
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SHA1
b8023025f8021b52ce3b2498c15babbdacc29de1
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SHA256
4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55
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SHA512
cc7bd42fc34b7d330ebbe63fede57e9d35d2629374cd2bc19cbb7c92fec3973ad67701069e5e9178da8fa521784d6d40239ef02b6c4ce71aaa7da8e4675186fb
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SSDEEP
49152:32rWdv1Gfzcw/B4PdlcDK+hagJbUaSbT/wbNeSy1oyrcjxM8RH:mrhzcuBAYe+kgJYfwbNZMoMixzRH
Malware Config
Extracted
socks5systemz
http://bbnhbsi.com/search/?q=67e28dd86a5ca17c4108f81b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f571ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c0ea93933f
http://bbnhbsi.com/search/?q=67e28dd86a5ca17c4108f81b7c27d78406abdd88be4b12eab517aa5c96bd86ec908048865a8bbc896c58e713bc90c91836b5281fc235a925ed3e56d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee94983bc8699f12
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral2/memory/4020-65-0x00000000009A0000-0x0000000000A42000-memory.dmp family_socks5systemz behavioral2/memory/4020-69-0x00000000009A0000-0x0000000000A42000-memory.dmp family_socks5systemz behavioral2/memory/4020-78-0x00000000009A0000-0x0000000000A42000-memory.dmp family_socks5systemz behavioral2/memory/4020-91-0x00000000009A0000-0x0000000000A42000-memory.dmp family_socks5systemz behavioral2/memory/4020-92-0x00000000009A0000-0x0000000000A42000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 3472 4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.tmp 2136 colorpicker.exe 4020 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 3472 4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.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 152.89.198.214 -
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 WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1528 wrote to memory of 3472 1528 4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.exe 77 PID 1528 wrote to memory of 3472 1528 4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.exe 77 PID 1528 wrote to memory of 3472 1528 4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.exe 77 PID 3472 wrote to memory of 2136 3472 4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.tmp 78 PID 3472 wrote to memory of 2136 3472 4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.tmp 78 PID 3472 wrote to memory of 2136 3472 4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.tmp 78 PID 3472 wrote to memory of 4020 3472 4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.tmp 79 PID 3472 wrote to memory of 4020 3472 4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.tmp 79 PID 3472 wrote to memory of 4020 3472 4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.tmp 79
Processes
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C:\Users\Admin\AppData\Local\Temp\4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.exe"C:\Users\Admin\AppData\Local\Temp\4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1528 -
C:\Users\Admin\AppData\Local\Temp\is-8D1NS.tmp\4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.tmp"C:\Users\Admin\AppData\Local\Temp\is-8D1NS.tmp\4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.tmp" /SL5="$B0056,1741795,54272,C:\Users\Admin\AppData\Local\Temp\4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3472 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:2136
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C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s3⤵
- Executes dropped EXE
PID:4020
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.0MB
MD5027a5dd229bede5d7943a7a83a50287b
SHA1b93bd15e0d23a5b9d69f18b243f0b24868f219f8
SHA25668c369695c29dd90a03c9fbb6d82d6dc70e3e770441bb21f7c10428ce6bfaf53
SHA512fbcec0e4b177a5f7ec84b716e040240fd81522e2fac1c860b7e2e8b120719a3592d788410037b54d44c3bddfeaee19781a06987e97628ab8445fb270904aa5fc
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C:\Users\Admin\AppData\Local\Temp\is-8D1NS.tmp\4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.tmp
Filesize677KB
MD5d394fc26de69f06950dc1c71959b0261
SHA17c9448fc3582f19763eaa8e3c5383b7873aee017
SHA256405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a
SHA51263ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63