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, 20:51
General
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Target
tuc4.exe
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Size
7.5MB
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MD5
65dd06741b6f2cca26d1e48c7eb7c05c
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SHA1
0852fdb342eab1839e7448912b0b5112c1e97582
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SHA256
a0ab149f23060f992f7580f842f9b4910bde33b4458b94a4aecaf1f5b4582a89
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SHA512
f969980bff8b2665842a8cc68d4b5ee8ef732e30d8a79d922ecedbb34e41dd4dff12b3cff3779d2e728a6070ed2a4d6a4d6d92ae09e53bfd0c8c61c8db94d68a
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SSDEEP
196608:JpVDDR8SZqepbLqwjKpDf/NIpEpDqfBrT0/WViLFfzj:JpVBtvpbL/+vVYBrTTefzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
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Loads dropped DLL 7 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-S5C95.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-S5C95.tmp\tuc4.tmp" /SL5="$400E0,7565670,68096,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 111⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.2MB
MD58cea8a2baf41d356876f2c3556364aef
SHA1b4952ef8ed8b866358c99f72712e7f212aef8d71
SHA256fa6cee2907d5ad0855f23512e6430a113726b322cc2ffbf4ae6e73333c397d1a
SHA512da22c9b849f59417f5dbef105357eb89ae4ad9bb6b1b9a76cdfc7c3cbd6202b617def91ef03f7baf71858da8439bf31d52e51c7ad57b7ac96d82ef4272dae6ba
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Filesize
379KB
MD56a1e5ec0960131cf1391cae65bc8801e
SHA1ac82ee2b523ae2d723e7474b7ae29dc7882ca1ce
SHA256affb698e928eac3dafacd7c3630ac925cff384c7ebe5b0b9c5b5bced6ca5a5ac
SHA512f63b4df082ffe617a08e3c28d2e122626a551a8d4a8ab149b935cc441fcce393b901c5fecfcc017fbd2170e8e62474094c3ae5345ec4bf863d9b70e248ea92ec
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Filesize
250KB
MD561d7434cf7c079b5e7cb6850f0bf6297
SHA1ab6266913247f93508e575221a461727be5874d7
SHA25664154f680771ea64aa815ba114e3c8642350e9fdf708c5fb3ea88fe466ae1cac
SHA512f4bb91b04030664e1ac335254d038791e921cc077e16b61e1e1007b79b83fe2f867a54f551ee094122b8ff17df7b706591f91c5f72c9e35ff4b12b400177176b
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Filesize
1.5MB
MD5073799a9dece7506c4c875338861c1c7
SHA1112432632fbcd6643be916f24852489777c4e4a2
SHA256d6fc09bb1cc171f1f7d865be82ac2a49eb3b36e476d7cb89c865b4e147a044b2
SHA5126c7abfbabb56ab68d3f0e04b6cc098616a7023c4406772c520dbcf4191b8e3290dcba9100d064ab88d5939c068b7c7b3c6fdd5f21895e842f08c3a9da37eace7
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Filesize
126KB
MD53e577d9e376c5330f48a1fb300ae3bb0
SHA1230ecf34d51e4b5898fd49808aff561382b4e21b
SHA256de116046482afc8cfdfc30b17f9c8770f303e2dac409e0cb51eafe33308e1319
SHA5126b4b46a7e491c7047900b3e565a76cb4dfe7f95607c59ffa2b25df857aab9a28f4a07b5c4a86a1f2e344c7b850a3440e2e2b1e914a11a1063de34078771849d9
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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
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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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
4KB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
752KB
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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
-
Filesize
2.4MB
-
Filesize
2.4MB
-
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
96KB
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Filesize
96KB