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Analysis
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max time kernel
147s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
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submitted
11/12/2023, 15:16
General
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Target
tuc5.exe
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Size
6.9MB
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MD5
97e9aebfe6bcde4f4be6f58a57176337
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SHA1
63dfb53e24ebde8b259ce5ce1a4b2984bad007a8
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SHA256
080c6c9c6949ba1071c0983d7debdb64edb8c029c12c91037d8d54c1656ee0a9
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SHA512
42e1b90162757b06406882c0ec370a91881a0d70d490f77bd4859d87169379ddb1eb1f735a0d219601caaab2d11bff4539476c17e804a64a4f18de84a863c463
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SSDEEP
196608:lxOlhkHxfDumIwWJfU1IzKkGjAqiuGIqOg9zj:2jkHxfKTnJjzKkRtF9zj
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\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-UIPFR.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-UIPFR.tmp\tuc5.tmp" /SL5="$6011C,6950053,68096,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)\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
917KB
MD5a40515951956fcace7b0cf7eb05340d5
SHA15864822eee6ab1e9be019df0845bc15c086005d6
SHA256374b95870bee334434dd6b80f773e01cc0e8fdb235ba414f731be5d853ff74b6
SHA512071adb47f06ef3af70e00fd5aa1862fac8782ad02cb6d7b99ce6c7fc1a20299747a38cf2c5fa4fad18f2fa603db34ee1716e1518218f1af59de1140deb1de017
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Filesize
1.6MB
MD5e5587e2028bb0cf1fa5fdb53cec50192
SHA1f2860921bf5e6f8378b140c9db36cc5420344982
SHA256aa59ea21fc69fb0c02824be41a963e5214c4e0cc51cb25f1530303e5cf163706
SHA512e43f3f242c8c061dd6c151607349aa673480615823ba9cb54e0e0896c73b8fba466ae577dd49e289ad79fe55a3d18dbed5a248b40e09a482493cd7716988da84
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Filesize
313KB
MD50ea25ce877f955257a4a1160490a484a
SHA17ededdf539367f83f6f629088f27664f51ec90a1
SHA256cda9a4051353cfc086b3fd1d6f1f58f4ce6b3642757ed989b98d090be0210d04
SHA5129038f78b561a1d9e2886eddd2cce4e2985bcbf02f909e6765f4e3897dd93baa90fb6e51d315eec9d335a49628b3a7566c211eb71967e8cf203c1d8f3261d9b4e
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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
4KB
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Filesize
752KB
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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
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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
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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
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
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