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Analysis
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max time kernel
148s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
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submitted
10/12/2023, 20:41
General
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Target
tuc5.exe
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Size
6.9MB
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MD5
310cdb63637621d845c3afc9107fba90
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SHA1
4144640a076f46184bee539aa49bf2bec20e2e62
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SHA256
7c1451058696840ebd0f24909b58bf0dd7ebaea72888903761c1a03f7cda3a4b
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SHA512
bff6c566d8a567cba397b38b69a688df2cf94fbbf3cb7446881211946ee4d450c3a01c445ff8c017769596ff9a92d101a3db771527df867f2345247d86bd3822
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SSDEEP
196608:YxnTNzjsOzc7TGHscDgcXbIdslX38dgFYJzj:QNztzQlcDPXus98d9Jzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
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Loads dropped DLL 3 IoCs
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Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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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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Drops file in Program Files directory 63 IoCs
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Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
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Suspicious use of WriteProcessMemory 18 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc5.exe"C:\Users\Admin\AppData\Local\Temp\tuc5.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-14I66.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-14I66.tmp\tuc5.tmp" /SL5="$80044,7025884,54272,C:\Users\Admin\AppData\Local\Temp\tuc5.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵
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C:\Program Files (x86)\CRTGame\crtgame.exe"C:\Program Files (x86)\CRTGame\crtgame.exe" -i3⤵
- Executes dropped EXE
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C:\Program Files (x86)\CRTGame\crtgame.exe"C:\Program Files (x86)\CRTGame\crtgame.exe" -s3⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 103⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 104⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
832KB
MD5bbe02efbfa5df6a7246ea5779bbd0cd2
SHA1317603475650d65091cd1efff32c786c7f3a0a60
SHA256edb66d143cf84c600f28bf96fbcb007e46c81ccece10db2a5affe8475d78d391
SHA51257a63fc340070c4fdd1237f7e7db1cb67d65ef7336e0a7b191290398a601bce3f9b65908d1aae024a73104ec661a1f49c1e0f826be585f7fd1c0ecce6487a6ef
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Filesize
882KB
MD52a8a96a697d7b039e111cff6136ef8f7
SHA13d3950e43167a131c369635f2b8f049d697c847f
SHA25663bf94249923e2029ded70e1f18deeb095601e65ef2bc9ff2cf4e17ca5e07ada
SHA512fdf564be64654e2aaee21041be4a6e6f20bd89433b8363bd4b1833f971521ebdfde23a2494ed0ea183cd241cff27092341ba45f267ce88d10d62602950c3779e
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Filesize
1.3MB
MD5cf3dcbc61edbe06892a049a8c67acb0e
SHA1374eae7bed1902ad35e2437ee559e66cfda5ce19
SHA256f057ca280e2d1cc8e76e8c02d602eaaba301dd0a069d07fa1a5b8c1a4fb7b7b2
SHA512c398dbd57f391b637ce0e1c65bda7d661d0f5fc631a47fa883fab465c9bc7bc28ab7c96d578b137b153b59bdd71f2a8eda08d1643846c65c57086a70ca0db792
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Filesize
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
19KB
MD53adaa386b671c2df3bae5b39dc093008
SHA1067cf95fbdb922d81db58432c46930f86d23dded
SHA25671cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38
SHA512bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303
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Filesize
4KB
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Filesize
4KB
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Filesize
752KB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
648KB
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Filesize
2.1MB
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Filesize
648KB
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Filesize
2.1MB
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Filesize
648KB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
80KB
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Filesize
80KB
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Filesize
80KB