Analysis
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max time kernel
153s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
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submitted
11/12/2023, 16:52
General
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Target
tuc4.exe
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Size
7.5MB
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MD5
339359af3ae0622283fc50e850651265
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SHA1
a2ab6bf6c32760c1c57ec7551e2835d715c04f33
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SHA256
e2ca645550cd113b881aa3bcda0258268ff067009185ab6a439ecaf3c5354d9c
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SHA512
840e0a2ebae20f263d0063be9fb5f651fb31c9ab254b3b565450af819efb3ea7d2dd1f3a572344bab9d6c55a67fc02a09f9d8726bfb708e827bd7a6c04332a1a
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SSDEEP
196608:7pVDDR8SZqepbLqwjKpDf/NIpEpDqfBrT0/WViLFfzj:7pVBtvpbL/+vVYBrTTefzj
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 2 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\tuc4.exe"C:\Users\Admin\AppData\Local\Temp\tuc4.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-4IQ77.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-4IQ77.tmp\tuc4.tmp" /SL5="$11003A,7565670,68096,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:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵
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C:\Program Files (x86)\PlayGIF\gifplayer.exe"C:\Program Files (x86)\PlayGIF\gifplayer.exe" -i3⤵
- Executes dropped EXE
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C:\Program Files (x86)\PlayGIF\gifplayer.exe"C:\Program Files (x86)\PlayGIF\gifplayer.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
2.2MB
MD578d4a4e17de575ec5bead281cfca2bbe
SHA15770b06fb9664c5f1ba587603a463513fa5cd629
SHA256a104fe5feb5e960e5531b300f3e27d364534bd24a46e35206f44a4f68107d424
SHA5123c2e771a7077c5e94679eb811c06349d985a9ae10e9b9ea0918c4a5cfb67d1695440662c9c4bcc7cf31df1b2be9769758a365b0429c866ee86a7e6b0920574a8
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Filesize
1.3MB
MD58b9eae2cebb77f510263ab41cd5e416a
SHA17f933bdc23891fb11151dc0986a9fac185bfa7e5
SHA256317e3e54e226e9773813545c62cdabcd2d09e36b096a20924ff2dd517b0aacc1
SHA512f159bd2ec0476e7bda1c1a5ce9518bd27d272c2025c899f2aa0fa211fbb7c356af65195a478b0144c6ec528d47d1c9e0ef8fd04801bc80819dc4e748b84224a3
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Filesize
1.1MB
MD59a5e9d92f6d4781930358dc3dd269e2a
SHA1dad2bce7bc2bf1279ab63585c6c6928686523785
SHA2562e5155040706720e72ea1c61c25c1d9fd83347eefd23c2894a7599c1cf07af26
SHA51266fc7e788fd17d008c9e1aba29f4360aa5e225719faef58f46f3bb958b22aab1b33cd984d6047e20947fdb4f9177bf73e47adc6ecbd81869447277c7bce6f979
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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
96KB
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Filesize
96KB
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Filesize
96KB
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Filesize
4KB
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Filesize
4KB
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Filesize
752KB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
632KB
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Filesize
632KB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
632KB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB