Resubmissions
24/03/2024, 17:36
240324-v6mkpseb47 1024/03/2024, 17:25
240324-vzb6dsea48 1024/03/2024, 15:03
240324-sfgknagb51 1024/03/2024, 14:25
240324-rrgjcsdb88 10Analysis
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max time kernel
160s -
max time network
167s -
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, 15:03
Static task
static1
Behavioral task
behavioral1
Sample
e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.exe
Resource
win10v2004-20240226-en
General
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Target
e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.exe
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Size
2.1MB
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MD5
530e5b703869db00c3b0814025c199c0
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SHA1
bacd94bd03b21e5f5ecae37acf070340f7f33222
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SHA256
e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46
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SHA512
8d5711efea6b95cb74f2b298dd193241f29941311009240787a7930ecbc625686b8f56a9807b711b351fbc2e964c3c817c253ccc75f9db1a5bdff2b9e9e550b8
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SSDEEP
49152:32IonT/SO6ZebdP47Q2jsCKC3LAxIJ57SCD7T0S/48I:mIZDZkQ70b1xInxD/48I
Malware Config
Extracted
socks5systemz
http://ckzkovl.net/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c644db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c9ed92993c
http://fyumflz.ru/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c644db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c9ed92993c
Signatures
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Detect Socks5Systemz Payload 2 IoCs
resource yara_rule behavioral2/memory/2144-69-0x0000000000810000-0x00000000008B2000-memory.dmp family_socks5systemz behavioral2/memory/2144-80-0x0000000000810000-0x00000000008B2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4088 e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.tmp 3256 sitefreeedition.exe 2144 sitefreeedition.exe -
Loads dropped DLL 1 IoCs
pid Process 4088 e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.tmp -
Unexpected DNS network traffic destination 2 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 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 1692 wrote to memory of 4088 1692 e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.exe 96 PID 1692 wrote to memory of 4088 1692 e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.exe 96 PID 1692 wrote to memory of 4088 1692 e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.exe 96 PID 4088 wrote to memory of 3256 4088 e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.tmp 97 PID 4088 wrote to memory of 3256 4088 e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.tmp 97 PID 4088 wrote to memory of 3256 4088 e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.tmp 97 PID 4088 wrote to memory of 2144 4088 e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.tmp 100 PID 4088 wrote to memory of 2144 4088 e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.tmp 100 PID 4088 wrote to memory of 2144 4088 e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.tmp 100
Processes
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C:\Users\Admin\AppData\Local\Temp\e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.exe"C:\Users\Admin\AppData\Local\Temp\e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1692 -
C:\Users\Admin\AppData\Local\Temp\is-ST18D.tmp\e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.tmp"C:\Users\Admin\AppData\Local\Temp\is-ST18D.tmp\e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.tmp" /SL5="$601CA,1887224,54272,C:\Users\Admin\AppData\Local\Temp\e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4088 -
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:3256
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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:2144
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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=3788 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:81⤵PID:548
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.2MB
MD5f5accb44aea64489ee12bd31c9c3dbb7
SHA134341d42e3664cc7a1682af3a0c98e566fb96d26
SHA256c8055d97a9d2d52abfccbef80d16a3f38d7c2108c1524c1e5aee14002aab98fe
SHA5121edbe7b50dd0bb1170dd0da0eeb53c33e52401453c0d6bf9b7bf1dd5dad670180d026091d92d022cb43f17cc0aef9b80414b1ee2baa8d1f518d53ca2b195ade4
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Filesize
1.4MB
MD56fbc0e4f42e977d67b4e341357296ac3
SHA1496902525c87b78c13ba9af2f80b595a9d5a8186
SHA256122cbb0bfac6d98fd71df5e834bb2afe750f8cba4bffbcf842017345ca4afe37
SHA5126053e18e31a40847b8db0a2524db96be94e50980ed035116731903c3b2922d470bac43636bd47109cc5c2415514db374feb7e971f095ca3146ce38c9e288ba4c
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Filesize
128KB
MD547a66f822c1889222e63cde210ed9a23
SHA1cd65db1355cbc1f4d976a231dadb29eab34c592f
SHA256d0031ae95efdd1991c3c4c271b1ebe4d7ab33caf334a871eb09fd2ee83bfd58a
SHA512c6694bde6c1995f8ab1fdcda20a266555913e2bc6f91348a838b0bd0581bca08f478e4f8f4c0bd3ba45fd7301492844f9a4fc3ffa6bdbaf393b7681dd8858338
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-ST18D.tmp\e44d878e1be2235927f48fa0d547e95a8b64e92e31a920a5a3439b9c79657b46.tmp
Filesize677KB
MD55a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1fe86894c4757c144449bc744649b7fb9e03346f1
SHA256d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af