Analysis
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max time kernel
141s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
25/03/2024, 02:08
Static task
static1
Behavioral task
behavioral1
Sample
3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe
Resource
win10v2004-20231215-en
General
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Target
3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe
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Size
2.2MB
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MD5
664ad7eeb31c7658d3d88e2633b6b2a1
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SHA1
29a061044c69b18124d59b1bfba1140bf477df96
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SHA256
3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247
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SHA512
d786659eb2333e6f33e5187716ed6c6e38bb379a78e07fbb33af51a1469e2422adc93e06dafbcfe3fc29bcc6ee2024058bb50d419eb91f01ce16fb15233d69bc
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SSDEEP
49152:32oeqsP/sudBrbboZuydk12g3VEk0H4rAl2uiSHTZY9KWM:moPs3zdVSH+lVHe4El2uiSzZY9FM
Malware Config
Extracted
socks5systemz
http://bfdhuik.com/search/?q=67e28dd86e0bf32a420fa9187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a071ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ed909d39
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral2/memory/4152-65-0x0000000000730000-0x00000000007D2000-memory.dmp family_socks5systemz behavioral2/memory/4152-69-0x0000000000730000-0x00000000007D2000-memory.dmp family_socks5systemz behavioral2/memory/4152-78-0x0000000000730000-0x00000000007D2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Detects executables packed with VMProtect. 19 IoCs
resource yara_rule behavioral2/memory/832-39-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/832-43-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/832-40-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-46-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-49-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-53-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-54-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-57-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-60-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-63-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-68-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-74-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-77-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-81-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-84-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-87-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-90-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-94-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/4152-97-0x0000000000400000-0x0000000000643000-memory.dmp INDICATOR_EXE_Packed_VMProtect -
Executes dropped EXE 3 IoCs
pid Process 332 3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp 832 colorpicker32.exe 4152 colorpicker32.exe -
Loads dropped DLL 1 IoCs
pid Process 332 3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.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 3520 wrote to memory of 332 3520 3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe 85 PID 3520 wrote to memory of 332 3520 3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe 85 PID 3520 wrote to memory of 332 3520 3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe 85 PID 332 wrote to memory of 832 332 3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp 86 PID 332 wrote to memory of 832 332 3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp 86 PID 332 wrote to memory of 832 332 3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp 86 PID 332 wrote to memory of 4152 332 3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp 87 PID 332 wrote to memory of 4152 332 3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp 87 PID 332 wrote to memory of 4152 332 3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp 87
Processes
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C:\Users\Admin\AppData\Local\Temp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe"C:\Users\Admin\AppData\Local\Temp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3520 -
C:\Users\Admin\AppData\Local\Temp\is-CAE8A.tmp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp"C:\Users\Admin\AppData\Local\Temp\is-CAE8A.tmp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp" /SL5="$50060,1950155,54272,C:\Users\Admin\AppData\Local\Temp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:332 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i3⤵
- Executes dropped EXE
PID:832
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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:4152
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.2MB
MD56a5fac096c2b4232d43de7231986c4b0
SHA135b823459bdb0a31da727a671a7ed017ad821036
SHA256b61859123f2743a206f50fde171c985564a745f73e60888bfc67ce3a86892f89
SHA5121f3eb2b99e5daa99cf4ee7333f20770d521b0a6d1e8e96bf86be69b01bed4df3684df005943929fd21dabf2e27dea9ffdedcb556f701b1038709b34b2912692e
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-CAE8A.tmp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp
Filesize677KB
MD5bb16a1aed23a42be299fa83942dc45cc
SHA1eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba
SHA2562fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df
SHA512bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4