Analysis
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max time kernel
147s -
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, 16:34
Static task
static1
Behavioral task
behavioral1
Sample
37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe
Resource
win11-20240221-en
General
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Target
37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe
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Size
2.0MB
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MD5
2f2b5ff3c33c62109f96e65c1d7601b0
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SHA1
aa8cfcbacc165b941199a9d56045933af952f995
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SHA256
37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81
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SHA512
ce770de242104f4f2fe702724f684ee59973cea11e257d997c18eb9f04487b0a6be9843c7b53070243cc2f1dee2a0e540cf1e379b6548cf40cab74a6fbc967ea
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SSDEEP
49152:32m/hFz6e3Bw45KMgwkYfyZYOgzynV0NWp6V/VtqkOVH:mobVwpooYQKcpGahH
Malware Config
Extracted
socks5systemz
http://bxyszls.com/search/?q=67e28dd86b55fb7a410dae497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978a471ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c1ee929938
http://bxyszls.com/search/?q=67e28dd86b55fb7a410dae497c27d78406abdd88be4b12eab517aa5c96bd86e891804b875a8bbc896c58e713bc90c91c36b5281fc235a925ed3e07d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee94983acc689515
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral2/memory/948-66-0x00000000009F0000-0x0000000000A92000-memory.dmp family_socks5systemz behavioral2/memory/948-70-0x00000000009F0000-0x0000000000A92000-memory.dmp family_socks5systemz behavioral2/memory/948-79-0x00000000009F0000-0x0000000000A92000-memory.dmp family_socks5systemz behavioral2/memory/948-92-0x00000000009F0000-0x0000000000A92000-memory.dmp family_socks5systemz behavioral2/memory/948-93-0x00000000009F0000-0x0000000000A92000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 2396 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 3240 colorpicker.exe 948 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 2396 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.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 141.98.234.31 -
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 2320 wrote to memory of 2396 2320 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe 76 PID 2320 wrote to memory of 2396 2320 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe 76 PID 2320 wrote to memory of 2396 2320 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe 76 PID 2396 wrote to memory of 3240 2396 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 77 PID 2396 wrote to memory of 3240 2396 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 77 PID 2396 wrote to memory of 3240 2396 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 77 PID 2396 wrote to memory of 948 2396 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 78 PID 2396 wrote to memory of 948 2396 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 78 PID 2396 wrote to memory of 948 2396 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 78
Processes
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C:\Users\Admin\AppData\Local\Temp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe"C:\Users\Admin\AppData\Local\Temp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2320 -
C:\Users\Admin\AppData\Local\Temp\is-9VQMF.tmp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp"C:\Users\Admin\AppData\Local\Temp\is-9VQMF.tmp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp" /SL5="$6023C,1752368,54272,C:\Users\Admin\AppData\Local\Temp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2396 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:3240
-
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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:948
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.1MB
MD5c963718dcfbf0c912a40a46bafcbe6f1
SHA18633310a8cc797a59a63d8fd54456893402296f8
SHA2569cc03473e79df79135bfad64f51cc2ab03eeba069494045a91ddf0d2745345f6
SHA512f9191caf21877ed861ad09019abf50c591ad5bcb2a478e4518e3e7aa64af73373d46c81e8829e80ac8be78be47d4ea83ff1e420e59297d1cff1718c37ca35c65
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Filesize
1024KB
MD5527b8f06d6527ae5d62b4cb562b11508
SHA1534c14bb3eb12e148a89c26c4b01bc07bb5093b9
SHA2560c7b1da7c541bd425c204529c4647cfa0acd671759b3e5a02f62b5918f541746
SHA5126f2459004a4da877159f4d473626426625908ce9c60f0a0eba2814b3de6632c01d2250902ec78880fba45eadddc0e299a5fab8a85bcf192bebc6630294cc1a28
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Filesize
1.1MB
MD5097bda7cd7aaccd478c721fedefd0a73
SHA1a8cddf16fac8a777256e8cdb48bbed6fe06d936a
SHA2566063036eb4dcf8c518176c9bda36a8f7b8f4fa0e71031c5d4d6fbe6df125bde1
SHA512edd4e3fd7f71db1d75b260f043580082ba85d4bf676b626aff679c9a256bf2e353e2f609c0b351a331f6fba2187249bf9d4c111e20e538c996c1b022850b60fe
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-9VQMF.tmp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp
Filesize677KB
MD5d394fc26de69f06950dc1c71959b0261
SHA17c9448fc3582f19763eaa8e3c5383b7873aee017
SHA256405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a
SHA51263ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10