Analysis
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max time kernel
146s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
24-06-2024 20:24
Static task
static1
Behavioral task
behavioral1
Sample
63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral2
Sample
63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe
Resource
win11-20240611-en
General
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Target
63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe
-
Size
4.8MB
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MD5
5d0f595f8dc0ef8ff2fc9fd7760514b4
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SHA1
8f347695fea2fb987d38d470f98e69d9291186a3
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SHA256
63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d
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SHA512
0f7ba781af0cf6933f68e122046192ff3ecd5b75edc5170469bd65bc14dafd0ddbfd3ca3545c1d38a15dae88c33a4377e96c2cad5d8d59c14e6d9499a2b1b238
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SSDEEP
98304:mkgOngWJBGdkqP6JWP6Sn0tU+du+QtU7TURML9f6JU3QSBSlxJjj1:jqdkqyIP6y0tnPL7TV9HXBSTJjp
Malware Config
Extracted
socks5systemz
bokcmff.com
http://bokcmff.com/search/?q=67e28dd8655df07d165afd1f7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff613c6ef929a3c
http://bokcmff.com/search/?q=67e28dd8655df07d165afd1f7c27d78406abdd88be4b12eab517aa5c96bd86e990814d845a8bbc896c58e713bc90c91936b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9c983dcd689611
Signatures
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Detect Socks5Systemz Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/4832-86-0x0000000000A40000-0x0000000000AE2000-memory.dmp family_socks5systemz behavioral2/memory/4832-110-0x0000000000A40000-0x0000000000AE2000-memory.dmp family_socks5systemz behavioral2/memory/4832-111-0x0000000000A40000-0x0000000000AE2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmpwinypux32.exewinypux32.exepid process 4516 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp 3196 winypux32.exe 4832 winypux32.exe -
Loads dropped DLL 1 IoCs
Processes:
63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmppid process 4516 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
Processes:
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 FindShellTrayWindow 1 IoCs
Processes:
63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmppid process 4516 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmpdescription pid process target process PID 5100 wrote to memory of 4516 5100 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp PID 5100 wrote to memory of 4516 5100 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp PID 5100 wrote to memory of 4516 5100 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp PID 4516 wrote to memory of 3196 4516 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp winypux32.exe PID 4516 wrote to memory of 3196 4516 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp winypux32.exe PID 4516 wrote to memory of 3196 4516 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp winypux32.exe PID 4516 wrote to memory of 4832 4516 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp winypux32.exe PID 4516 wrote to memory of 4832 4516 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp winypux32.exe PID 4516 wrote to memory of 4832 4516 63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp winypux32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe"C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:5100 -
C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp"C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp" /SL5="$1301EA,4749858,54272,C:\Users\Admin\AppData\Local\Temp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4516 -
C:\Users\Admin\AppData\Local\Winypux\winypux32.exe"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i3⤵
- Executes dropped EXE
PID:3196
-
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C:\Users\Admin\AppData\Local\Winypux\winypux32.exe"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s3⤵
- Executes dropped EXE
PID:4832
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\is-80ULM.tmp\63137b209b34ce9db1febea79c228fc16eeefc2db38615a4c519bcd0a38be08d.tmp
Filesize680KB
MD57aae617848243476f1715d942fc9f929
SHA17ab84d0415f025db25fd5091c1ef5b0f543c5060
SHA2569ac0c72d76944fdc7a0b34cfe364485e909e2b5e97ea30b99c8815eafeb5380e
SHA5121ceab0ddf5d52523c6c8d42426d4c9d08a2fe8bd118e21a1d590b46f9afec50938f0f8903b892786535b6e468014e24b0c71d17c6bc3876b762051caaa2fd42c
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
2.7MB
MD59a6bd5db33f2b2d034748003a505b46d
SHA1d872afe7a6a14259b94ae3ad0e407ede1c6bcdc4
SHA25681b985e701a558e5d01bc5c3d00d413f747388365fbbc5c7824c28219afa88b6
SHA5128e08a9f452aea395ea698e1ceb2289e54c82df45cc5db2f19711ffe43ca1a6daff7098b74b0398fd9a9cd0a523490aa4d46db8ce9591c9df975798d1f2df798f