Analysis
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max time kernel
144s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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://bfwqbdi.com/search/?q=67e28dd86a5ef62a130aa5197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c646db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668dfc11c9e89c
Signatures
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Detect Socks5Systemz Payload 2 IoCs
resource yara_rule behavioral1/memory/2584-74-0x0000000002310000-0x00000000023B2000-memory.dmp family_socks5systemz behavioral1/memory/2584-85-0x0000000002310000-0x00000000023B2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 1676 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 2156 colorpicker32.exe 2584 colorpicker32.exe -
Loads dropped DLL 5 IoCs
pid Process 1996 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe 1676 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 1676 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 1676 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 1676 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 91.211.247.248 -
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 15 IoCs
description pid Process procid_target PID 1996 wrote to memory of 1676 1996 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe 28 PID 1996 wrote to memory of 1676 1996 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe 28 PID 1996 wrote to memory of 1676 1996 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe 28 PID 1996 wrote to memory of 1676 1996 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe 28 PID 1996 wrote to memory of 1676 1996 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe 28 PID 1996 wrote to memory of 1676 1996 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe 28 PID 1996 wrote to memory of 1676 1996 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe 28 PID 1676 wrote to memory of 2156 1676 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 29 PID 1676 wrote to memory of 2156 1676 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 29 PID 1676 wrote to memory of 2156 1676 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 29 PID 1676 wrote to memory of 2156 1676 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 29 PID 1676 wrote to memory of 2584 1676 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 30 PID 1676 wrote to memory of 2584 1676 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 30 PID 1676 wrote to memory of 2584 1676 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 30 PID 1676 wrote to memory of 2584 1676 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp 30
Processes
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C:\Users\Admin\AppData\Local\Temp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe"C:\Users\Admin\AppData\Local\Temp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Users\Admin\AppData\Local\Temp\is-V86BT.tmp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp"C:\Users\Admin\AppData\Local\Temp\is-V86BT.tmp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp" /SL5="$400F4,1963376,54272,C:\Users\Admin\AppData\Local\Temp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1676 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i3⤵
- Executes dropped EXE
PID:2156
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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:2584
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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
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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\Users\Admin\AppData\Local\Temp\is-V86BT.tmp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp
Filesize677KB
MD5bb16a1aed23a42be299fa83942dc45cc
SHA1eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba
SHA2562fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df
SHA512bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4