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Analysis
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max time kernel
145s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
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submitted
12/12/2023, 15:23
General
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Target
tuc4.exe
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Size
7.1MB
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MD5
7e62d85a76a1757805e381e57ac8fd23
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SHA1
5578e71d218f6444b882a608b0f56a39b95954d3
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SHA256
72cb051b8ab0fd53c7c7c0ca35b81579f588a191aab4a55b7398637fdaa6f331
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SHA512
850063fb6311f082ebdc127b5587e72ebe3b52d226b6c2e6d99ad82737c9a3a7499283c87490e06457875953f3d8e9877cf0570e6852ca9d9f58e195444bca3e
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SSDEEP
196608:Sxm5D5YUyRe7VvZKwamjGKAVW7R+gSoASGm8PvsLMwzj:ERepZKwaS79SoASGDP0Qwzj
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 1 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-5BGUS.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-5BGUS.tmp\tuc4.tmp" /SL5="$F0040,7235080,121856,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)\numGIF\numgif.exe"C:\Program Files (x86)\numGIF\numgif.exe" -i3⤵
- Executes dropped EXE
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C:\Program Files (x86)\numGIF\numgif.exe"C:\Program Files (x86)\numGIF\numgif.exe" -s3⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 123⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 124⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
160KB
MD5458294ef4af96b0177b325580dfbb0c4
SHA16679ccc83277ef65e9041c507cd40f4bb641ed32
SHA256965a8ac9034d2e292c31cb4f093602a569bc5501637bc6b61db05dc4b83e1b3e
SHA51270129b23f1c9fe2e3f96e5e3cacae75f82777e403d554e3f3657dd3f28053e82e9b1e6f1cb05dcd269511d5d2a0b5d6b0b9ee34ce04b19f74b5f8cb3c1828653
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Filesize
421KB
MD55abc192b9ae2ac1e2cfa7a067fe8a102
SHA109691ed0900a3f862101de4e4931f4f55caf62ac
SHA2565bc0f03d2a9440f93350a5268a11dea4d2d25280093657e26bb6e12f35aba3ce
SHA512f5c068a53f694285d5a8d7de10651fb0b465a1f4021de4b2c6e89e334e5f946f2337504f5318fc48703a2e6aa60ee6c24300dac865e187b63c8501e4bf59918a
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Filesize
1.2MB
MD5f54ab8fbca31c55090125786a423aab9
SHA163913cddbd5efbf87b07e571d2f87d761235ee53
SHA256e834db8a2a743de1a6ec8f191c6392b4960be08e826735b4062864fef2bb529d
SHA512ca9cb08a30d23ccd7cb7d96e3c091527993d1bc010faa19e06f04621f6cd2ed088ef130f2d286bcef0d787c4bf86e51716a99b13f48b6ad6ed57665e6b0d1f6b
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Filesize
601KB
MD554de2c479b28f0a18f95baa7d43dab4a
SHA14ee1d14469099150377c594cdd05283b4aeab8f5
SHA256587b1b11dda9e96b0cd69a8ba1ca8380f447255688c81c3fe202c71d81371d24
SHA51282120e2d42c8c16101698391e9ff8c9db7a1c01f4c462fdcdfb5522d1a628e8192b9f7b449de00a6c556c21de9307f9c3e4a47289f33b071626e15db398e2cee
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Filesize
44KB
MD5bd9122e6046b16d2292f92a164c99c65
SHA1fa5a53f8f6dc5ef7cb36b4ad069b4c3adee6ee1a
SHA256e537c72d2a0f6aed30c65e40dd7bc7c0fa71fdd7487b536ab6a1d6164301b88a
SHA512b476b46dc9a8ae1052bfeddfcff7ae696b0c5c9d130b6ca1b234a945258b07196371e1f7a63519ce3d7e82d576766004fe7dffa4d68063729eb11d5c27b32510
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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
148KB
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Filesize
148KB
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Filesize
148KB
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Filesize
2.2MB
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Filesize
632KB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
632KB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
4KB
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Filesize
4KB
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Filesize
752KB