Analysis
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max time kernel
147s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
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submitted
11/12/2023, 14:22
General
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Target
tuc3.exe
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Size
6.9MB
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MD5
93a061a4bbab4efd27c7e47d09629eac
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SHA1
3ffbc7263d8039202ea372ad956dd7187e138c56
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SHA256
46ff17be11d368e4fee688bc6fbc6dcd33cf794408d39605cf343556810a9b09
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SHA512
604061374154814aea69bcef4a1e687dd4d152293fd650100d1e6ba297a4796fb019db908e85823b457fdab845fa9117a07942abd85e2e97903bdf68c47e0271
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SSDEEP
196608:gW0fKLtr95HARqIrmVY8S50UL8Kj8yTwHvWY3Nzj:gtO/hAPmVNyEWeNzj
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 3 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-H2HDP.tmp\tuc3.tmp"C:\Users\Admin\AppData\Local\Temp\is-H2HDP.tmp\tuc3.tmp" /SL5="$110092,6973457,68096,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:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵
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C:\Program Files (x86)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i3⤵
- Executes dropped EXE
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C:\Program Files (x86)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s3⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 113⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 114⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.0MB
MD5bb5f3686ecf860d379f1ed8f5fcf6ef6
SHA1e6a59412fbc7ef390ea987a7528cbab9da01e546
SHA25651b3c30daf3e112435a0664a9382c0219291fb334aad21773657ed5f2c2bb05d
SHA5123a82a9a4c9c498bc25ab62a9313e6cd08f9e603bd6b2d2f908b9c458c4a2bdba237d96501206f0ed14469a7e70752f35af5d266bc8ddd18151f70c11a9e0d46d
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Filesize
1.0MB
MD5cced716efbee87668a97b876b93aafed
SHA131574d88978912bf835a096afc436ff70f4d36ce
SHA256a0713a4294b34e87610a5444e79d924de04158d6b5995f9e00e4f12067269111
SHA512e0a702c43bcf61dc60bc8d120d34529fa8e8b3dfa1efcedd91788552f1aa9968ab2a4dadd420513f403cd492f64a34b9649ec79f7c19fddae77c72151fc69760
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Filesize
235KB
MD5b6bc84e44476ef95eace852529371a20
SHA15132e8c4ceda48fbd8861ba9ebfd2419302b94ac
SHA256422786052e7a275004eb51eac7c4ff9d555d1e3004552e85f9cb223da51621ac
SHA51276e2f9081a9bcca87263703ffe3e79b0d38c3f16b5cdd867db9b8bc3a0661e5ce40dc8ef52ae8f295beb5c835ccb3a67eda596e2c6778117165cd3642bf9b4ac
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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
4KB
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Filesize
752KB
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Filesize
4KB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
96KB
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Filesize
96KB
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Filesize
96KB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
-
Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
632KB
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Filesize
1.8MB
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Filesize
632KB
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Filesize
1.8MB
-
Filesize
1.8MB
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Filesize
632KB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB