Analysis
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max time kernel
141s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
23/03/2024, 13:19
Static task
static1
Behavioral task
behavioral1
Sample
cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.exe
Resource
win11-20240221-en
General
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Target
cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.exe
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Size
2.0MB
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MD5
acb4ff970a6f5a421f388d8db9ef27a5
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SHA1
d66686a615df8a8a6f8f36400c13fdc9f55dbb0c
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SHA256
cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be
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SHA512
2ab6226fc9ce4cea1376692377483642d5a9e83f0e2becf3ca5d81116b3bb8b62263a9c38521de9b79c4921718885a09070ef6e2d21ed2f2cb253a1e1f482bca
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SSDEEP
49152:32SwGJoA887GzJVZ3qTC4SdEdosi9psTJiP9Pe7D:m9A887cJn3oCnEmsisTYc
Malware Config
Extracted
socks5systemz
http://boilyji.com/search/?q=67e28dd8655ba479120da84d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978a071ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c0ef959b3d
http://boilyji.com/search/?q=67e28dd8655ba479120da84d7c27d78406abdd88be4b12eab517aa5c96bd86e590864496148ab2865b77f80ebad9c70f7cb63037ed2ab423a4654383ba915d911ec07bb606a0708727e40ea678c45abbe74ffb0e2807e12571c17f3e83fe16c1ee979a3bcd6e90
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral1/memory/3280-65-0x00000000008D0000-0x0000000000972000-memory.dmp family_socks5systemz behavioral1/memory/3280-69-0x00000000008D0000-0x0000000000972000-memory.dmp family_socks5systemz behavioral1/memory/3280-78-0x00000000008D0000-0x0000000000972000-memory.dmp family_socks5systemz behavioral1/memory/3280-91-0x00000000008D0000-0x0000000000972000-memory.dmp family_socks5systemz behavioral1/memory/3280-92-0x00000000008D0000-0x0000000000972000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4876 cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.tmp 3660 colorpicker.exe 3280 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 4876 cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.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 1176 wrote to memory of 4876 1176 cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.exe 89 PID 1176 wrote to memory of 4876 1176 cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.exe 89 PID 1176 wrote to memory of 4876 1176 cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.exe 89 PID 4876 wrote to memory of 3660 4876 cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.tmp 93 PID 4876 wrote to memory of 3660 4876 cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.tmp 93 PID 4876 wrote to memory of 3660 4876 cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.tmp 93 PID 4876 wrote to memory of 3280 4876 cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.tmp 94 PID 4876 wrote to memory of 3280 4876 cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.tmp 94 PID 4876 wrote to memory of 3280 4876 cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.tmp 94
Processes
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C:\Users\Admin\AppData\Local\Temp\cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.exe"C:\Users\Admin\AppData\Local\Temp\cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1176 -
C:\Users\Admin\AppData\Local\Temp\is-791QL.tmp\cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.tmp"C:\Users\Admin\AppData\Local\Temp\is-791QL.tmp\cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.tmp" /SL5="$C006C,1756126,54272,C:\Users\Admin\AppData\Local\Temp\cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4876 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:3660
-
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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:3280
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
220KB
MD5eb2a1704a27d69722596d71a61fd070c
SHA171bb555c6071c882fd8e3e93d9be848bf8e57b3c
SHA256baa1e1ecf3dc88cd2804cd0076d829578db5acb72da93c14939fab3fb064d83c
SHA512533daec59bd9586fe7f8e08dc38a03fad37c8f081d855d8a8f5adefec4f618b7fef1eaae8fd8fccc2ac56df5dbd78e0354e977e64ff96e0a7b6cf1ddcb588252
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Filesize
2.0MB
MD5c79648f3750d1cefcdb36833c743d263
SHA1894203940c5346ae015be20e017dee9b409ddaf5
SHA25689af231d1c627b6bede896ef3eb73d8bc48e4a9e37accb71b7f6723a3fe5953b
SHA512052ca6068b18f2d7fcdedcfe01021ce480987c8bf09cda91abb719c9647314c276380563ab1b3fba9cf635499e17eed26c75b7c80bdd59f2ca2c7626c3dd9cf8
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-791QL.tmp\cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.tmp
Filesize677KB
MD592f7775908bb12183914bb0753782913
SHA18d1091da36832942d48f2fe9a1a216fdd556b9c4
SHA256a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed
SHA5127e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39