Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
23/03/2024, 15:16
Static task
static1
Behavioral task
behavioral1
Sample
8d2f10057105ec032c4aab9f1d3b7a25.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
8d2f10057105ec032c4aab9f1d3b7a25.exe
Resource
win10v2004-20240226-en
General
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Target
8d2f10057105ec032c4aab9f1d3b7a25.exe
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Size
2.0MB
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MD5
8d2f10057105ec032c4aab9f1d3b7a25
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SHA1
b8023025f8021b52ce3b2498c15babbdacc29de1
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SHA256
4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55
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SHA512
cc7bd42fc34b7d330ebbe63fede57e9d35d2629374cd2bc19cbb7c92fec3973ad67701069e5e9178da8fa521784d6d40239ef02b6c4ce71aaa7da8e4675186fb
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SSDEEP
49152:32rWdv1Gfzcw/B4PdlcDK+hagJbUaSbT/wbNeSy1oyrcjxM8RH:mrhzcuBAYe+kgJYfwbNZMoMixzRH
Malware Config
Extracted
socks5systemz
http://ckmivjp.net/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c0e8959933
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral2/memory/4864-68-0x00000000008D0000-0x0000000000972000-memory.dmp family_socks5systemz behavioral2/memory/4864-69-0x00000000008D0000-0x0000000000972000-memory.dmp family_socks5systemz behavioral2/memory/4864-81-0x00000000008D0000-0x0000000000972000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 820 8d2f10057105ec032c4aab9f1d3b7a25.tmp 3952 colorpicker.exe 4864 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 820 8d2f10057105ec032c4aab9f1d3b7a25.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 9 IoCs
description pid Process procid_target PID 3852 wrote to memory of 820 3852 8d2f10057105ec032c4aab9f1d3b7a25.exe 94 PID 3852 wrote to memory of 820 3852 8d2f10057105ec032c4aab9f1d3b7a25.exe 94 PID 3852 wrote to memory of 820 3852 8d2f10057105ec032c4aab9f1d3b7a25.exe 94 PID 820 wrote to memory of 3952 820 8d2f10057105ec032c4aab9f1d3b7a25.tmp 100 PID 820 wrote to memory of 3952 820 8d2f10057105ec032c4aab9f1d3b7a25.tmp 100 PID 820 wrote to memory of 3952 820 8d2f10057105ec032c4aab9f1d3b7a25.tmp 100 PID 820 wrote to memory of 4864 820 8d2f10057105ec032c4aab9f1d3b7a25.tmp 102 PID 820 wrote to memory of 4864 820 8d2f10057105ec032c4aab9f1d3b7a25.tmp 102 PID 820 wrote to memory of 4864 820 8d2f10057105ec032c4aab9f1d3b7a25.tmp 102
Processes
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C:\Users\Admin\AppData\Local\Temp\8d2f10057105ec032c4aab9f1d3b7a25.exe"C:\Users\Admin\AppData\Local\Temp\8d2f10057105ec032c4aab9f1d3b7a25.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3852 -
C:\Users\Admin\AppData\Local\Temp\is-3150R.tmp\8d2f10057105ec032c4aab9f1d3b7a25.tmp"C:\Users\Admin\AppData\Local\Temp\is-3150R.tmp\8d2f10057105ec032c4aab9f1d3b7a25.tmp" /SL5="$C003C,1741795,54272,C:\Users\Admin\AppData\Local\Temp\8d2f10057105ec032c4aab9f1d3b7a25.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:820 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:3952
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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:4864
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4456 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:81⤵PID:2524
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.0MB
MD5027a5dd229bede5d7943a7a83a50287b
SHA1b93bd15e0d23a5b9d69f18b243f0b24868f219f8
SHA25668c369695c29dd90a03c9fbb6d82d6dc70e3e770441bb21f7c10428ce6bfaf53
SHA512fbcec0e4b177a5f7ec84b716e040240fd81522e2fac1c860b7e2e8b120719a3592d788410037b54d44c3bddfeaee19781a06987e97628ab8445fb270904aa5fc
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Filesize
677KB
MD5d394fc26de69f06950dc1c71959b0261
SHA17c9448fc3582f19763eaa8e3c5383b7873aee017
SHA256405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a
SHA51263ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63