Analysis
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max time kernel
150s -
max time network
152s -
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, 18:06
Static task
static1
Behavioral task
behavioral1
Sample
420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe
Resource
win11-20240221-en
General
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Target
420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe
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Size
2.2MB
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MD5
1173ceb0939e0575c60732e4aecb58f8
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SHA1
9c738c31a31a4f715db32f0cb36270c86746a96f
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SHA256
420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa
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SHA512
404240f6bb7bc682266976732f82b49685372b0434239c65f9cdde07ec9c94588cbfe1f285125d50e69e6b1677a3de8e0e28d1fd688496ab85730fe701832590
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SSDEEP
49152:32xqqtMJ6tJU4WOFxH+QcjW8zpCweqrVbXZRiWN0I:mxqMX64WWxeQMzpC/qr97yI
Malware Config
Extracted
socks5systemz
http://ejqgktz.ua/search/?q=67e28dd86b5ea42a430af91a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c0ec939d32
http://ejqgktz.ua/search/?q=67e28dd86b5ea42a430af91a7c27d78406abdd88be4b12eab517aa5c96bd86eb97854b815a8bbc896c58e713bc90c91936b5281fc235a925ed3e04d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee94993bce69911f
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral1/memory/1436-64-0x00000000007E0000-0x0000000000882000-memory.dmp family_socks5systemz behavioral1/memory/1436-69-0x00000000007E0000-0x0000000000882000-memory.dmp family_socks5systemz behavioral1/memory/1436-78-0x00000000007E0000-0x0000000000882000-memory.dmp family_socks5systemz behavioral1/memory/1436-91-0x00000000007E0000-0x0000000000882000-memory.dmp family_socks5systemz behavioral1/memory/1436-92-0x00000000007E0000-0x0000000000882000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 2808 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp 452 sitefreeedition.exe 1436 sitefreeedition.exe -
Loads dropped DLL 1 IoCs
pid Process 2808 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.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 152.89.198.214 -
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 1028 wrote to memory of 2808 1028 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe 88 PID 1028 wrote to memory of 2808 1028 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe 88 PID 1028 wrote to memory of 2808 1028 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe 88 PID 2808 wrote to memory of 452 2808 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp 92 PID 2808 wrote to memory of 452 2808 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp 92 PID 2808 wrote to memory of 452 2808 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp 92 PID 2808 wrote to memory of 1436 2808 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp 93 PID 2808 wrote to memory of 1436 2808 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp 93 PID 2808 wrote to memory of 1436 2808 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp 93
Processes
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C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe"C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1028 -
C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp"C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp" /SL5="$12004C,1922762,54272,C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2808 -
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:452
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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:1436
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.2MB
MD556f29e096c37c2f0ff17b240d9cd4ea5
SHA1bc7135675d0d7062153a301496b0e56e99d704dd
SHA256afe43fe927976a2f9cda295af17b504fa33a55278e8b8b191d1f38a8f5b74d40
SHA512012e0c525e1c3d4c2673fe86b7cb5d0261b3fcd60c09119879d39566307c7905b8ecd727836fca33f8886bd2b4bac315a7fad06565fe12426ba657beb88b17d6
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C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp
Filesize677KB
MD55a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1fe86894c4757c144449bc744649b7fb9e03346f1
SHA256d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63