Analysis
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max time kernel
144s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
25/03/2024, 01:41
Static task
static1
Behavioral task
behavioral1
Sample
76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe
Resource
win10v2004-20240226-en
General
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Target
76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe
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Size
2.2MB
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MD5
49fe4735e75193274cde5a90dca8d507
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SHA1
4e8a3bb2b436e7e638795f5a1616bedae717ac84
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SHA256
76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1
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SHA512
68cf27357218af330befadeb22c6b97d2020e5a49a66a9e6c80c3615cefba15478195d99657e22ea835cf083914dad3bf23664f9126f2b0139222dbe7f901a37
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SSDEEP
49152:32EhCr4Pj565Uc1zixnsx0UbwXAkcHeKf/+lAyJqM:mEl6CnxyF2A3Hei+l1JqM
Malware Config
Extracted
socks5systemz
http://bfgrmey.com/search/?q=67e28dd86b5ea42a430af91a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c646db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ef9c9d3c
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral2/memory/1392-65-0x0000000000880000-0x0000000000922000-memory.dmp family_socks5systemz behavioral2/memory/1392-69-0x0000000000880000-0x0000000000922000-memory.dmp family_socks5systemz behavioral2/memory/1392-78-0x0000000000880000-0x0000000000922000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 3096 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 1780 colorpicker32.exe 1392 colorpicker32.exe -
Loads dropped DLL 1 IoCs
pid Process 3096 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.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 4292 wrote to memory of 3096 4292 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe 90 PID 4292 wrote to memory of 3096 4292 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe 90 PID 4292 wrote to memory of 3096 4292 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe 90 PID 3096 wrote to memory of 1780 3096 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 93 PID 3096 wrote to memory of 1780 3096 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 93 PID 3096 wrote to memory of 1780 3096 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 93 PID 3096 wrote to memory of 1392 3096 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 95 PID 3096 wrote to memory of 1392 3096 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 95 PID 3096 wrote to memory of 1392 3096 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 95
Processes
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C:\Users\Admin\AppData\Local\Temp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe"C:\Users\Admin\AppData\Local\Temp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4292 -
C:\Users\Admin\AppData\Local\Temp\is-HC40J.tmp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp"C:\Users\Admin\AppData\Local\Temp\is-HC40J.tmp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp" /SL5="$12004C,1963376,54272,C:\Users\Admin\AppData\Local\Temp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3096 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i3⤵
- Executes dropped EXE
PID:1780
-
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C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s3⤵
- Executes dropped EXE
PID:1392
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.2MB
MD5d673fc73e6c80bd052d4011784c56c9a
SHA18e043078c2a4ec36f876c9250aa90eb9cc525944
SHA25618b0ca673a0c396acbe28a1c7b4fefde2e51aa7126f52000bf74d3bd93377113
SHA5120a7f2ddb026f362bb4aaf7cdc4569646b39698768f0046a04f05c91157034142d27238d20dde17cdb0f4644acc3fc3a7ad9fd564f48e10840bd3ba0b800d7e3f
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Filesize
1.1MB
MD5eba5119c12beb2d043b23f079854ad0f
SHA17c75c786e470b090c0361c7fbdbb0a9373083114
SHA256d9c15de7e066f36fb5301ebe27f5150d7624fbaaac0179f04aa527a4f61e2a5a
SHA512366ea929c1a2f21bcdf18544cae72790df333bfdef6d9c3092b828e9199fa1ec8819eb319fb4fb1c119d41530135fb4c35f88a9a3126242595dfe59a8364738c
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Filesize
1.5MB
MD54b8e7057fadaa253c955679006516394
SHA15167a514fb663088a407d75ce6bde5fa4de207b5
SHA256522aba332bd519b9815331ca34cce047bcf07aed49c86d6b4a36acac35905d6e
SHA5122cfa1163c20d8296f2e7c06af33d586b44ba59da4e52416887a90ec37e64f184260fa0fec4e57e0e984993eec441be7eee25e2d9a2d52ae3d3af58eeed709798
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C:\Users\Admin\AppData\Local\Temp\is-HC40J.tmp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp
Filesize677KB
MD5bb16a1aed23a42be299fa83942dc45cc
SHA1eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba
SHA2562fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df
SHA512bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63