Analysis
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max time kernel
147s -
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, 12:15
Static task
static1
Behavioral task
behavioral1
Sample
5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.exe
Resource
win11-20240221-en
General
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Target
5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.exe
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Size
2.0MB
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MD5
ded765bc5ba4afdd70cdca87b06e031f
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SHA1
e422aec0d328480a4de087d57eb4c4ff5d4aba5e
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SHA256
5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2
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SHA512
3abeab5b8268a885ed4b86a5dd7dbc83cfa4d4e53473c55fb92f7347e9732f108fdfcec3b8f1d3a1153c96dd44cd25224df343ded65ba54da603bdd5093bbfb8
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SSDEEP
49152:32qrMGcmhsZWMZA9wvRXHURUwDbNVrhs2zFb+Z90se7D:m6V0WMZXXiFbjrhs21w9bc
Malware Config
Extracted
socks5systemz
http://dixrnua.info/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe10c9e994933e
http://dixrnua.info/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12eab517aa5c96bd86ee96854f855a8bbc896c58e713bc90c91936b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee949b32cb6e9f13
Signatures
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Detect Socks5Systemz Payload 4 IoCs
resource yara_rule behavioral1/memory/3548-67-0x00000000008B0000-0x0000000000952000-memory.dmp family_socks5systemz behavioral1/memory/3548-79-0x00000000008B0000-0x0000000000952000-memory.dmp family_socks5systemz behavioral1/memory/3548-90-0x00000000008B0000-0x0000000000952000-memory.dmp family_socks5systemz behavioral1/memory/3548-91-0x00000000008B0000-0x0000000000952000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 844 5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.tmp 4600 colorpicker.exe 3548 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 844 5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.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 4236 wrote to memory of 844 4236 5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.exe 95 PID 4236 wrote to memory of 844 4236 5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.exe 95 PID 4236 wrote to memory of 844 4236 5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.exe 95 PID 844 wrote to memory of 4600 844 5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.tmp 98 PID 844 wrote to memory of 4600 844 5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.tmp 98 PID 844 wrote to memory of 4600 844 5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.tmp 98 PID 844 wrote to memory of 3548 844 5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.tmp 100 PID 844 wrote to memory of 3548 844 5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.tmp 100 PID 844 wrote to memory of 3548 844 5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.tmp 100
Processes
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C:\Users\Admin\AppData\Local\Temp\5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.exe"C:\Users\Admin\AppData\Local\Temp\5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4236 -
C:\Users\Admin\AppData\Local\Temp\is-UB8J3.tmp\5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.tmp"C:\Users\Admin\AppData\Local\Temp\is-UB8J3.tmp\5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.tmp" /SL5="$50222,1769802,54272,C:\Users\Admin\AppData\Local\Temp\5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:844 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:4600
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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:3548
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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=1028 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:81⤵PID:4836
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
886KB
MD5134bf2c35436cda9247ec2b92dcc1ea8
SHA1a375d0b80ce52ddaed9686a812a39905a110d51e
SHA256bf16475425daee7dcfc416a89de65edb51e464df3df2f8432c5828ad36d780e7
SHA5124aaa2013bead9df467b2e0dcc9225de16fca4e6356facc9db87c0a5aec6e37214b7ebd297e05e9032c5536dbbb88c2bfb46e6a33ec59ec8b14dd02d8270b3aca
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Filesize
2.1MB
MD5a689446e3c009a816949c13a4369ef96
SHA19da43499c84cb0e5fb3fdc2d9c5862dbc7c30071
SHA2568c605cb6c45bc30ca483ad375e31dafe212c9543a8f3ce27e4c93d0961758345
SHA512d4fce27bdcf05afec2e572639e87b86226e457f4aebe11886ae44df111087a75eae5a986aca964bef2070c2b4eda146ab1f8b7ad3c0883b54fe226f4dfc9935c
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-UB8J3.tmp\5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.tmp
Filesize677KB
MD592f7775908bb12183914bb0753782913
SHA18d1091da36832942d48f2fe9a1a216fdd556b9c4
SHA256a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed
SHA5127e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39