Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
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submitted
10-12-2023 20:26
General
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Target
tuc3.exe
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Size
6.9MB
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MD5
57548a76c5779bab0715d87ecafa6c03
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SHA1
8f032a9207f95b3bfafafcb6f7f5513543b4319f
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SHA256
2395645b8d7cafa8f2562341110ed10c08e9bb9e4809abc24d8f7325bc14a8e9
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SHA512
45542f23c2e975085bbf150420351078ad8cde2aef0612e768207b84145ad629ffadad61562c7c95615d5266dceda8035264630d24cbef212c2f20926854e883
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SSDEEP
196608:iK2+nNevvWstwr2m5BmycyEbSfasepd5e4x6+AjZ6mjxzj:iDY6tiP3myRfzepXe4ny8gxzj
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\tuc3.exe"C:\Users\Admin\AppData\Local\Temp\tuc3.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-B7M5A.tmp\tuc3.tmp"C:\Users\Admin\AppData\Local\Temp\is-B7M5A.tmp\tuc3.tmp" /SL5="$A002E,6991381,54272,C:\Users\Admin\AppData\Local\Temp\tuc3.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 104⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
227KB
MD5121428c50cc539ee81fcc1870b683cf0
SHA1a142dbf9e836482964d1611070d6a0c18ec11fd8
SHA25629adc97c8eaeb87d1b5f4e39d9332524902eb12a9a04682033621913b5195840
SHA512a29d522c56741fef4186b5faafd08bcb753fba61264b671c601480f547e427f9717bcbe5e968425a483ea88bf9057530149d34b1e892277ea8be843bf82b4562
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Filesize
229KB
MD5a875f38878492736f7b15d724e51bf8c
SHA13b051461d9476ca284b27d89c001a0881ec4731c
SHA2568f5f11d271937b06ab99a9fe55808b079c7550f5c47a143f78543812f128fbc6
SHA512e864672d927f14ca00bd72f39d884fb64a69d21c88262f9a610134662c95263fcdab84343bdd33e497c736bf0deef5e27d8ec342d097f25cbb7efeda72e074a1
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Filesize
187KB
MD56f42b1a796b2c08b31f3ab47b20f6f53
SHA1baf933864b95b48428fe34231661fc002ae8d26c
SHA25653748f6bbc23fb30dcd67f17d968e824135a3fab047632dd7c0231a7bcbd473d
SHA5125da545dd32efc871ad7fbeb1296cf7d70e0ea68fe6a9b8804a0eae01eda1e3ed2f67bdfc43be2124885b8d3e4662bd2ea292c4af38ec63daec2a233676f43e49
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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
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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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
2.1MB
-
Filesize
2.1MB
-
Filesize
2.1MB
-
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
4KB
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Filesize
4KB
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Filesize
752KB
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Filesize
80KB
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Filesize
80KB
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Filesize
80KB