Analysis
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max time kernel
152s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
24/03/2024, 15:00
Static task
static1
Behavioral task
behavioral1
Sample
74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe
Resource
win11-20240221-en
General
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Target
74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe
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Size
2.2MB
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MD5
8e91ce989f6f12b5296b9f7aa6bd3860
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SHA1
716c12298bbda1ac368709cc7b6c31833d485976
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SHA256
74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91
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SHA512
3fbc6636d3eb723155cb45f8548163d00271733769d6854bd3773406c1acda7253ba07112fd670c72dc48671a671026fe0b3c626f9f1612fb8b9a27e7848018d
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SSDEEP
49152:32Skfob75L4zrxDpnl+GyL+OYthd1QdNdyvYDCo+jzVeFZDhdI:mSUob14zr1N8BL+OGhUyvY16UnDhdI
Malware Config
Extracted
socks5systemz
http://beeabez.com/search/?q=67e28dd86e58a42e450ca94d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f671ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c9ed909a3a
http://beeabez.com/search/?q=67e28dd86e58a42e450ca94d7c27d78406abdd88be4b12eab517aa5c96bd86e9948e4d865a8bbc896c58e713bc90c91b36b5281fc235a925ed3e55d6bd974a95129070b611e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee949832cf6a9617
Signatures
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Detect Socks5Systemz Payload 4 IoCs
resource yara_rule behavioral1/memory/3816-68-0x00000000008C0000-0x0000000000962000-memory.dmp family_socks5systemz behavioral1/memory/3816-78-0x00000000008C0000-0x0000000000962000-memory.dmp family_socks5systemz behavioral1/memory/3816-91-0x00000000008C0000-0x0000000000962000-memory.dmp family_socks5systemz behavioral1/memory/3816-92-0x00000000008C0000-0x0000000000962000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 316 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 4708 sitefreeedition.exe 3816 sitefreeedition.exe -
Loads dropped DLL 1 IoCs
pid Process 316 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.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 4140 wrote to memory of 316 4140 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe 93 PID 4140 wrote to memory of 316 4140 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe 93 PID 4140 wrote to memory of 316 4140 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe 93 PID 316 wrote to memory of 4708 316 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 94 PID 316 wrote to memory of 4708 316 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 94 PID 316 wrote to memory of 4708 316 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 94 PID 316 wrote to memory of 3816 316 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 96 PID 316 wrote to memory of 3816 316 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 96 PID 316 wrote to memory of 3816 316 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 96
Processes
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C:\Users\Admin\AppData\Local\Temp\74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe"C:\Users\Admin\AppData\Local\Temp\74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4140 -
C:\Users\Admin\AppData\Local\Temp\is-4B4O9.tmp\74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp"C:\Users\Admin\AppData\Local\Temp\is-4B4O9.tmp\74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp" /SL5="$70064,1927047,54272,C:\Users\Admin\AppData\Local\Temp\74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:316 -
C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -i3⤵
- Executes dropped EXE
PID:4708
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C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -s3⤵
- Executes dropped EXE
PID:3816
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.2MB
MD5b347167a660c271a5e46da17b4d2ed2e
SHA11b924c44838230a69a108bb3ca5da4569f44d94b
SHA2562a65cae99af2cc9ecb0bad0276a5c5063c837546723dad07f28457a127949211
SHA5120c8145f72a34a7e9f0739b7541ecf3722cf4fc01ec615dfd988e3ef409b2a4e7360ca8da874701c3fea26aba35339e49595d338c8eff66664bcb0479469999e6
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Filesize
2.0MB
MD5c1888076b9d1fcb3fbea22c7ae9c4efa
SHA168cffdd86f24c026347f1954bcdeb25070dbf332
SHA2564578f40c62734e6f65d1463dd632bb51b01fe3ef19941ee504454085096f3429
SHA512a81793e23b80d30f6be5983fa7870a1e848dfc4b46ee9287d702c8b695fc5b50a1f8b8dabc71e84f03945faa9818410f6d48315cb2ec0afc0c46ccc632d6d50d
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Filesize
896KB
MD52976e79d536cd5ad67b1964672932e27
SHA162a76042d5c9d43e88d8b529a26e40a6b3a93913
SHA25622197ebaa9577382c2b27fe6aae89cd7c28204fe874ade90320baee6d286c6ff
SHA5124d51950a18619d3ad9c43b7e50bef1c62c9e8234bd7c8a58ef8d097f1fc399277a03047e09ae8fc69ecb0e96eb5b227515bd72de35542240b9db061e229f43e6
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C:\Users\Admin\AppData\Local\Temp\is-4B4O9.tmp\74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp
Filesize677KB
MD55a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1fe86894c4757c144449bc744649b7fb9e03346f1
SHA256d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63