Analysis
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max time kernel
149s -
max time network
148s -
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, 16:01
Static task
static1
Behavioral task
behavioral1
Sample
a43170914d691e584583b0e1023f7d29.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
a43170914d691e584583b0e1023f7d29.exe
Resource
win10v2004-20240226-en
General
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Target
a43170914d691e584583b0e1023f7d29.exe
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Size
2.2MB
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MD5
a43170914d691e584583b0e1023f7d29
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SHA1
2a814e366e3d6eb503f0eb398496f7e01470d6d2
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SHA256
25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3
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SHA512
de188e27905264204e5371fc92b512b4053fe7dc6b05e5659ca93d47a5f986ece802352e14f41488dc2bc01b95876619186a90b4f7009509c1f0d4fa76ecded9
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SSDEEP
49152:3260I7BCcfemAVm2VrO5jTzyXyOBuY7hIqrmmA/VzmgH:m6lCcfDAxOlTeXRR7hIqrUV1H
Malware Config
Extracted
socks5systemz
http://bfxkvgm.com/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c0e6929f3b
Signatures
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Detect Socks5Systemz Payload 2 IoCs
resource yara_rule behavioral2/memory/3392-69-0x0000000000830000-0x00000000008D2000-memory.dmp family_socks5systemz behavioral2/memory/3392-80-0x0000000000830000-0x00000000008D2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4816 a43170914d691e584583b0e1023f7d29.tmp 2324 colorpicker.exe 3392 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 4816 a43170914d691e584583b0e1023f7d29.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 456 wrote to memory of 4816 456 a43170914d691e584583b0e1023f7d29.exe 96 PID 456 wrote to memory of 4816 456 a43170914d691e584583b0e1023f7d29.exe 96 PID 456 wrote to memory of 4816 456 a43170914d691e584583b0e1023f7d29.exe 96 PID 4816 wrote to memory of 2324 4816 a43170914d691e584583b0e1023f7d29.tmp 98 PID 4816 wrote to memory of 2324 4816 a43170914d691e584583b0e1023f7d29.tmp 98 PID 4816 wrote to memory of 2324 4816 a43170914d691e584583b0e1023f7d29.tmp 98 PID 4816 wrote to memory of 3392 4816 a43170914d691e584583b0e1023f7d29.tmp 99 PID 4816 wrote to memory of 3392 4816 a43170914d691e584583b0e1023f7d29.tmp 99 PID 4816 wrote to memory of 3392 4816 a43170914d691e584583b0e1023f7d29.tmp 99
Processes
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C:\Users\Admin\AppData\Local\Temp\a43170914d691e584583b0e1023f7d29.exe"C:\Users\Admin\AppData\Local\Temp\a43170914d691e584583b0e1023f7d29.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:456 -
C:\Users\Admin\AppData\Local\Temp\is-9A0LE.tmp\a43170914d691e584583b0e1023f7d29.tmp"C:\Users\Admin\AppData\Local\Temp\is-9A0LE.tmp\a43170914d691e584583b0e1023f7d29.tmp" /SL5="$501D2,1970008,54272,C:\Users\Admin\AppData\Local\Temp\a43170914d691e584583b0e1023f7d29.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4816 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:2324
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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:3392
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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=4584 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:81⤵PID:3216
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.2MB
MD5ca07d355c80b303ac9edbf3d9b5492f3
SHA1f09e8e52c3bb53e20f1623321ef2e0da693ebe85
SHA256d144face050d52cf3beba96a24ff6bc79f01a621ee19801dbea49079fee42da8
SHA5128961bc69e102623303d9cd943b9f2df32d8597958a0e3e51a41a84421de1c8037fd9a5e32f86a429f4ec551fcdd9a9b8d1b034a2644d3031abf8b1b5c9e5efdc
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Filesize
1.5MB
MD5511482177f3a6d0a0b00589a703f3496
SHA18c697322ae4428e7eb5f576eb1fc7f8632e94658
SHA25633b715a17806b790fadce6dca4c85a0421031e6e4aa19ee671d71c8e4ea2444f
SHA512dd25ec70b745d7850dd0e262e5e684ea8e3e818d042793cb9944fbc13c56ced0863793461189fa2e4753144bd657ab42cfd2511b039c967e409d344a6a09929d
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
677KB
MD5d394fc26de69f06950dc1c71959b0261
SHA17c9448fc3582f19763eaa8e3c5383b7873aee017
SHA256405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a
SHA51263ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10