Analysis
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max time kernel
146s -
max time network
150s -
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, 13:21
Static task
static1
Behavioral task
behavioral1
Sample
8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.exe
Resource
win11-20240221-en
General
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Target
8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.exe
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Size
2.2MB
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MD5
25cb7192c8f7a3bfec2a4817f8552ca7
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SHA1
cc221059563e9e8025805a42a9a46154feedd55d
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SHA256
8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4
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SHA512
fafea40044db5c00ae813ed91da0aeb40eb35602dc4265a5a0d50f95c13cfe878d079e45f42c1eb533dc366f88576f00ab539122783aece8c46b338ef458687f
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SSDEEP
49152:32mFbq6TKK/DUgI/Guo+HoJ7P7Ea2ieZl53e7D:m+b1TKqqGXkopP2iex3c
Malware Config
Extracted
socks5systemz
http://bxtsbvh.com/search/?q=67e28dd83d54f12b140cff197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c0ef949238
http://bxtsbvh.com/search/?q=67e28dd83d54f12b140cff197c27d78406abdd88be4b12eab517aa5c96bd86ec9c8f44805a8bbc896c58e713bc90c91836b5281fc235a925ed3e01d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee94983bcd6e9e15
Signatures
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Detect Socks5Systemz Payload 4 IoCs
resource yara_rule behavioral2/memory/1628-66-0x00000000009D0000-0x0000000000A72000-memory.dmp family_socks5systemz behavioral2/memory/1628-76-0x00000000009D0000-0x0000000000A72000-memory.dmp family_socks5systemz behavioral2/memory/1628-89-0x00000000009D0000-0x0000000000A72000-memory.dmp family_socks5systemz behavioral2/memory/1628-90-0x00000000009D0000-0x0000000000A72000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 824 8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.tmp 2864 colorpicker.exe 1628 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 824 8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.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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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 3404 wrote to memory of 824 3404 8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.exe 81 PID 3404 wrote to memory of 824 3404 8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.exe 81 PID 3404 wrote to memory of 824 3404 8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.exe 81 PID 824 wrote to memory of 2864 824 8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.tmp 82 PID 824 wrote to memory of 2864 824 8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.tmp 82 PID 824 wrote to memory of 2864 824 8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.tmp 82 PID 824 wrote to memory of 1628 824 8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.tmp 83 PID 824 wrote to memory of 1628 824 8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.tmp 83 PID 824 wrote to memory of 1628 824 8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.tmp 83
Processes
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C:\Users\Admin\AppData\Local\Temp\8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.exe"C:\Users\Admin\AppData\Local\Temp\8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3404 -
C:\Users\Admin\AppData\Local\Temp\is-B4HHJ.tmp\8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.tmp"C:\Users\Admin\AppData\Local\Temp\is-B4HHJ.tmp\8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.tmp" /SL5="$800D8,1960984,54272,C:\Users\Admin\AppData\Local\Temp\8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:824 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:2864
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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:1628
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.2MB
MD521fd5e2dba33cafdfc9574a3eb37aac5
SHA1ac88f469467f09dc782024e5a6c78bdda925563a
SHA256f338953864a2015f9d3a1a9543dd321c9fbc81123f8c3f303a741bef11ff60e7
SHA512430f4ad309d8e42c5e7e31d5eb555db1dfcf4dc00d4398104ffce23c39a91340f360071bf138fe79e0385bc0cd2e29de89166f3d67fa8deb9bf11f08f65a998a
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C:\Users\Admin\AppData\Local\Temp\is-B4HHJ.tmp\8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.tmp
Filesize677KB
MD592f7775908bb12183914bb0753782913
SHA18d1091da36832942d48f2fe9a1a216fdd556b9c4
SHA256a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed
SHA5127e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63