Analysis
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max time kernel
149s -
max time network
150s -
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, 11:56
Static task
static1
Behavioral task
behavioral1
Sample
81ff59064aee2985951585849fdb1e72.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
81ff59064aee2985951585849fdb1e72.exe
Resource
win10v2004-20240226-en
General
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Target
81ff59064aee2985951585849fdb1e72.exe
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Size
2.0MB
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MD5
81ff59064aee2985951585849fdb1e72
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SHA1
86e8537fdec1a12be3a79318ef37ac8137edcbea
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SHA256
6e8879c7cf7985de7664ac3d756fce01503d9d18fdef1bfdafd568a4cecde171
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SHA512
8e7dcea7445b2f9ffd11991f700036a28f24df3d4b27b252dad829d844fefc25afdd2ce0b7112c71255421b4776b07e388d0d2f413f1177c6222b55e1fe2269d
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SSDEEP
49152:32wTpneykPmxLYSeue04pW3bJr7yOtXXJBdb5v/gDe7D:mwTpnHJYSupW31KQXxF3gDc
Malware Config
Extracted
socks5systemz
http://ceedgfm.net/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe10c9ea95993c
http://ceedgfm.net/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12eab517aa5c96bd86ee96854f855a8bbc896c58e713bc90c91936b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee949b32c86f9511
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral2/memory/1788-69-0x0000000000760000-0x0000000000802000-memory.dmp family_socks5systemz behavioral2/memory/1788-68-0x0000000000760000-0x0000000000802000-memory.dmp family_socks5systemz behavioral2/memory/1788-80-0x0000000000760000-0x0000000000802000-memory.dmp family_socks5systemz behavioral2/memory/1788-93-0x0000000000760000-0x0000000000802000-memory.dmp family_socks5systemz behavioral2/memory/1788-94-0x0000000000760000-0x0000000000802000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 1076 81ff59064aee2985951585849fdb1e72.tmp 2396 colorpicker.exe 1788 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 1076 81ff59064aee2985951585849fdb1e72.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 45.155.250.90 -
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 2000 wrote to memory of 1076 2000 81ff59064aee2985951585849fdb1e72.exe 94 PID 2000 wrote to memory of 1076 2000 81ff59064aee2985951585849fdb1e72.exe 94 PID 2000 wrote to memory of 1076 2000 81ff59064aee2985951585849fdb1e72.exe 94 PID 1076 wrote to memory of 2396 1076 81ff59064aee2985951585849fdb1e72.tmp 97 PID 1076 wrote to memory of 2396 1076 81ff59064aee2985951585849fdb1e72.tmp 97 PID 1076 wrote to memory of 2396 1076 81ff59064aee2985951585849fdb1e72.tmp 97 PID 1076 wrote to memory of 1788 1076 81ff59064aee2985951585849fdb1e72.tmp 98 PID 1076 wrote to memory of 1788 1076 81ff59064aee2985951585849fdb1e72.tmp 98 PID 1076 wrote to memory of 1788 1076 81ff59064aee2985951585849fdb1e72.tmp 98
Processes
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C:\Users\Admin\AppData\Local\Temp\81ff59064aee2985951585849fdb1e72.exe"C:\Users\Admin\AppData\Local\Temp\81ff59064aee2985951585849fdb1e72.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2000 -
C:\Users\Admin\AppData\Local\Temp\is-1JDAG.tmp\81ff59064aee2985951585849fdb1e72.tmp"C:\Users\Admin\AppData\Local\Temp\is-1JDAG.tmp\81ff59064aee2985951585849fdb1e72.tmp" /SL5="$E004C,1696724,54272,C:\Users\Admin\AppData\Local\Temp\81ff59064aee2985951585849fdb1e72.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1076 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:2396
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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:1788
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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=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:81⤵PID:3252
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.0MB
MD57e7e6a14c9a33e1d872bdfcd6f01df79
SHA17e8e4ab16f34ca58187c6cc607c6762d575bf888
SHA256c2d9b32599563008ad23cc524da0dc03eeabd0f5c75ad92fbc7993531125639a
SHA512d6a68fa321637bdb596aafc92bbe5192e9a0bac2ebbb872fd551e01f2de939f9db2ca7765a124a864aaeb6613c7c86104111cfb0eeeab1be31adc323f328c668
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Filesize
981KB
MD584e4e2880829054564b300a8a7f2f436
SHA1f676dff6581aad74906f47e9518657167066aa99
SHA256fddc87f5fb6aa9d886f050ea19166d0e27a55a9a35cc210352920205ee72ca9c
SHA5121d0dce5975523c1c1aa5a05483bc2d6accb2c98bbc80e35640048419aedc89d5d99dc20c2f3c33a55922ed56648fc6d0182b950ea17c73975a138e2ae3595f0c
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Filesize
791KB
MD5a42d511329bb15ef8904bb288981c979
SHA1331c2e9e3eabf339ef89f62651458431f32b8edd
SHA256c2821e1ddf6f9954fb7438570c6fc935691fd9512f899e36bc4d543abc8d9b74
SHA512cce562ec346e634bfd2ee44a640d0753508e9ab6f39cf873e7c70704d160a64749ab6c728086259082458e86035a0ddb0bfad5c787e7772aa601c9679150de59
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Filesize
677KB
MD592f7775908bb12183914bb0753782913
SHA18d1091da36832942d48f2fe9a1a216fdd556b9c4
SHA256a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed
SHA5127e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63