Analysis
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max time kernel
141s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
24/03/2024, 17:04
Static task
static1
Behavioral task
behavioral1
Sample
a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral2
Sample
a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe
Resource
win11-20240221-en
General
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Target
a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe
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Size
2.2MB
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MD5
d53e4728df84f62771153cb043fdfa27
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SHA1
ead68c7230c6d03976d844905143a29ad9237f4d
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SHA256
a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60
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SHA512
8ecc18d5dccdd4ad0af35701354ecf6355bf9eb0dfe89cb90bfa2e0cc5a419f6132e4ae462d673b485eb023d9f4234446674983546cb2cf2a45b59156e1f6ef1
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SSDEEP
49152:32NhpMCIw3nJK8D4Owzivb51u5Fk9mhLWINIrCQeaPG/EVN/I:m/mCIOJhwqt14FB8INIuoPG/2/I
Malware Config
Extracted
socks5systemz
http://ejnuudk.ua/search/?q=67e28dd86e0bf32a420fa9187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a071ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c9e69c9933
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral1/memory/4380-65-0x00000000008F0000-0x0000000000992000-memory.dmp family_socks5systemz behavioral1/memory/4380-68-0x00000000008F0000-0x0000000000992000-memory.dmp family_socks5systemz behavioral1/memory/4380-77-0x00000000008F0000-0x0000000000992000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4924 a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp 3752 sitefreeedition.exe 4380 sitefreeedition.exe -
Loads dropped DLL 1 IoCs
pid Process 4924 a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.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 3972 wrote to memory of 4924 3972 a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe 84 PID 3972 wrote to memory of 4924 3972 a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe 84 PID 3972 wrote to memory of 4924 3972 a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe 84 PID 4924 wrote to memory of 3752 4924 a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp 85 PID 4924 wrote to memory of 3752 4924 a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp 85 PID 4924 wrote to memory of 3752 4924 a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp 85 PID 4924 wrote to memory of 4380 4924 a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp 86 PID 4924 wrote to memory of 4380 4924 a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp 86 PID 4924 wrote to memory of 4380 4924 a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp 86
Processes
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C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe"C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3972 -
C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp"C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp" /SL5="$C01C6,1911280,54272,C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4924 -
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:3752
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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:4380
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.2MB
MD58944a1c523c2483a2ceb72ff50f931ac
SHA1a74b8c09d2e4cfb10b8aa807a55c0a9c56d5d91b
SHA25656d7e4a6c7ea0d911c1d6e0613e1df9d5b8fe139bbceb6aae38e880625cd01de
SHA512d8f828808883ccbc30058bcc07520e335088927a9f8454c0f25aac7ebdca26dfdd2258099e87e3e75979db40beacbb2697e2b3b3e95a9ece0eb367777753a330
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp
Filesize677KB
MD55a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1fe86894c4757c144449bc744649b7fb9e03346f1
SHA256d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af