Analysis
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max time kernel
120s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
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submitted
10-12-2023 18:40
General
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Target
tuc4.exe
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Size
6.9MB
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MD5
e5f9baf2d41dfedc6d946afef0bf4f2a
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SHA1
6c7790c9e79645be54a103918d62390589fab135
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SHA256
a16840fd50d21d9d6849db446ec7702e96f4f854c1efbf77d6b5698662e98750
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SHA512
e6cae330c88ad2b1695b7df3b140d823d2cda40e889c5f18a7ccd66d09a92353f088421476acfd37bb52134095557066d686d67a38d087bd5a41ec9ebac7c376
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SSDEEP
98304:KQ+Vxb2IGx8i09D7OWCLPMTeQm5MT1k/lmrpt9l4Rx2UXwDieSC0kWppgK6TrzuG:UVx6OdDqWwWeQm5+kYrMCUX6m7y5Trzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
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Loads dropped DLL 6 IoCs
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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 27 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc4.exe"C:\Users\Admin\AppData\Local\Temp\tuc4.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-Q46PU.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-Q46PU.tmp\tuc4.tmp" /SL5="$40016,6990755,54272,C:\Users\Admin\AppData\Local\Temp\tuc4.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:\Program Files (x86)\CRTGame\crtgame.exe"C:\Program Files (x86)\CRTGame\crtgame.exe" -i3⤵
- Executes dropped EXE
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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" -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 101⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
85KB
MD52bca61e8c08dfa508b85c847138df22d
SHA1036fa7c178287f355862370ad1b108f65d26a734
SHA256dd3c96d959eb0795de6e4129828d8500e21a659057522cde3201724a4d94dcd9
SHA512c01931e7caec79addde5803f697a887a0ab20474ce94c2c9d2900190754f75881686255a66ed22378750b9a4efa2631787dd78c4e100771291a826fb8b09aa07
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Filesize
84KB
MD5e6f817ca6c7337571422945487a6d365
SHA14e57240e4df574eb51ffa67d5de51f1a071619fd
SHA256edcd8f7c4a89c6c9458756382e7afbfc995c6dfebe826ddf6580bbb6eeee4880
SHA512e30282c7a9ff08ad988f5ed95472801c06e31f1b9f6021c3d099939d014e567fd4ea2704af2994d5aba5931f2eca612c3a5b462e143debf78192947d3b21eb69
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Filesize
35KB
MD5ad5e27d6b1b76f266d05a9d78da71f9f
SHA10880eed9a73046ec566ebbeeefa3c05deef11fb7
SHA256b3e4b2ee1500469b0474d3a31657371bf846eccc88451e05880558793474eb9e
SHA512da358c1c2a5433f68b2a4867500736f20b3b4b9ee579f5b0d7daaeeab9632846f585c3f62dda67ffefddffde916682ba2ee01cd170ce1908ff32142d2bc1823d
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Filesize
252KB
MD515ac78c54e0a2bc4c100b94668c8f68c
SHA1c1cb467567b9a525712aad5e3c9f1ae685c4e2ee
SHA256301cde4d334b7b46a465808a09c6e18f33a9127fa2bd4e7313571f628a67345d
SHA51261f1969ed2171b6ea6e10b9ac23155b20ce2ab5e706652e695d73da002885085e1788bae2b6536090ecb7b8a1f5c1db0e77df72bfafaec069ca6cd6378f8f0d7
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Filesize
192KB
MD54f040ddc60d8520b592c963959d7b680
SHA1f428f577ebd861202be107f8aa94c4b7bc656634
SHA2565f64de6a30fa5f6b707f9a17d934268dc8ccb15a4b82d2ab2eb367ccec26e54b
SHA512624813abe82eee976622d9655cdfa31673f3f83eb270f5084dff111c307484816c8a6058a358502e0c4a340d89bb06949dca85f377841c4241f078babe42a79d
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Filesize
70KB
MD577d73fb37b0ef4df5f458a25dda75bdd
SHA186195e66a584c4abb2e34f6433397b629da6104e
SHA256c38640d0706a174dd1f132bd6dff39888d5ff14645b1d98b4a6261afffacabd5
SHA512fc47dd6eb10b8d8f05f140a79ea4a8dfd63e7ba1db67f1d64e6cc95f8bb85bee77e81f07f4791e64dbae9da7b76394807c1c174f9a454eb6309cc60f3ef939e7
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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
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
266KB
MD5568325a90408cb3d80469a76c4e55a31
SHA1d6799d49cbb41be44643abce1f90b8e93c0b6e2a
SHA2568500f725547532d647591d9125a0a474e2c3dd5fc5fb7112e0a8388065602142
SHA5129d8b8a1f5eca08d7a87cb22e0d2a08ac86e3ee41e893d4107b586587b954214d2e2566d624bc19b97bbe8155ee72b9b3074f590511dc0cb351ded4cbc581004e
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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
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
4KB
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Filesize
752KB