Analysis
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max time kernel
144s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20231130-en -
resource tags
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submitted
11/12/2023, 18:36
General
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Target
tuc4.exe
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Size
7.5MB
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MD5
e40114940908d8b514685a4c0d27d598
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SHA1
f34f177dcacf590687094fb53ac79bbbd63e690d
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SHA256
1a7af3f41490b3228c20fcb57f6652a819afc6a8c05f82fee528d00fc4eba0b4
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SHA512
489f32a162c034c59d29661c7850cdea80df73fdf0448c77d0709c7b2e3efc7f5c776991280c00884deaffa1f2c70bf8673e229d9d845e7b8a82f10be61d22f6
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SSDEEP
196608:MpVDDR8SZqepbLqwjKpDf/NIpEpDqfBrT0/WViLFfzj:MpVBtvpbL/+vVYBrTTefzj
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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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 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-1QPV4.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-1QPV4.tmp\tuc4.tmp" /SL5="$3012C,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
2.4MB
MD55dc562b448f045f90df473f00220930c
SHA1ac09da3a60faea29363e8c770aeb70ad1a7b3800
SHA256c19876e6b58393dce4bb3bdbcfa11d30c94b5cacf935816e9ea1ba9b36ed2ba9
SHA5125e3cfbb880d7722042001db0306792d87da2bea6bacadff171032591ba1ed628ee27b6fbe2c066f44df30209c83bd4cbfb3ae5fb748b43d2761c243462d812ed
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Filesize
736KB
MD546aa6d3e02d626805235cbf4bf719451
SHA1ea7f5f14ee807379335cb9a2af90c9457f5d401a
SHA25636505b11afc6df78a6c02676d6be54d5419cec5e4fb4956fac9e509dec48b6d2
SHA512e529efeb8db127782a59a355341b467ed107e2458964cd4cf009ff86697d1c812869f242f87438fd004be9739856f11cf2fb15976f3849fc2a451c61fa6f4345
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Filesize
778KB
MD5c804bd347d1bb9d3e296f910ea86eee0
SHA11336a79947591b8254e3a2bcab4406a288c81e37
SHA256bf2b06f5d177716f09e48b8ca537ac52c7046b40b2dc3b28c0173253d64fc662
SHA512b7614c1fda61511001bb9c140cc8ffee5d5d3d004b268fc421ceb9522e08188243e2d11cb0e5cc3fc8c53f793e4de70836c945a98600506c7114681a1ae6ab01
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Filesize
1.1MB
MD5c872dd4e426dd2d14e332fe0761d6347
SHA100f5ee0926ea577981a6f4ddc6c297d19b6fb56d
SHA25607f0c35b281ad091b59423ac563f631b357fad50422f435259d6935ffc2f6b85
SHA5126dda2be058b4a65bff37453c53e7fa62a78e681a482ef6cd48992021c6ecea3cebc6db8be3d0ec96df790c8548354966ceab9fd1e8f33836f480cb7cc7881f72
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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
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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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
96KB
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Filesize
96KB
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Filesize
96KB
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Filesize
2.4MB
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Filesize
752KB
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Filesize
4KB
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Filesize
4KB
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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
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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
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