Analysis
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max time kernel
149s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
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submitted
12-12-2023 14:48
General
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Target
tuc4.exe
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Size
7.1MB
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MD5
8c7f92f96f4e26620c1b114ef9a0132f
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SHA1
a758538ae1eb4dffcc7ef97186b8468871a41b92
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SHA256
398d131ce73ad5291e6fb7f732ee44e8eb1fea05f93f5e421885abe8a54ea18a
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SHA512
cde65f7d14b39d80b8b37fea3fb82e7998be09b5aa907d6a8b69d8b62a84e5f955c5c8ae371841a58f2d8ed4ce5b42ee68ab47d41042a3f3dbe3ff6e861eb9e8
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SSDEEP
196608:zxm5D5YUyRe7VvZKwamjGKAVW7R+gSoASGm8PvsLMwzj:HRepZKwaS79SoASGDP0Qwzj
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 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 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-FTDR8.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-FTDR8.tmp\tuc4.tmp" /SL5="$4014E,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:\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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C:\Program Files (x86)\numGIF\numgif.exe"C:\Program Files (x86)\numGIF\numgif.exe" -s3⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
902KB
MD59325af3dd716f3f4b38bccf77b9c0701
SHA1d7509885a1cc8364a91cfa950f20381bb3d0d19f
SHA256ef5fdcdc2734480832a7a7f9efdf253b2c0f195d18b387e7bb12a46b85755ef3
SHA5125b8b3ebbe786e68590cf7d71b44f6d463d51499483663b2aee86d70b11e3abf3624118195722cf0ed30c22c71ad9aed844613ffd8c9175dfe270bfdf56f64ff3
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Filesize
529KB
MD5b6dede065131e2c25d728ae19a072299
SHA1b5cf74ef4bc3ce9f1235377a4b940e2e99ef15cf
SHA2567778635a3e21820f747ec69702138acc2766a701e564a95f08894d7da75f8597
SHA512d9276c506717dcd601617f757b659cd8acb9494ef90551b6b32734db130bc9b4b27043b6e9570cf08dcb258495fa13ec4894921089e6a8c1dac324950d74783e
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Filesize
592KB
MD5714d65c216c1db3db1a6ee6d614a1da0
SHA1bab9e96acec0469704ce53c3b5a069708bc856e2
SHA2565415b8a35b464ca8e0cc55eecc7f37fe529ece5cddb5efcd2cbfe4d977fcce64
SHA5128c16bc1a2f63a4ba969a4d6ec15dbd95921b87f5df7c91a0a53afd75d6f3115ef82c8a73a2dea21ff3b10a63a956cab7cde22e25bf76be67a52b266e4512727a
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Filesize
1.6MB
MD50cf1c97dffa0fc80642e0ff7daf3f1db
SHA119039db34ed8b71d0288cd62dbbae31d880b0797
SHA256978cbcafc1aca98e24c70cfdfe14306f9ecd0104731d3b95dccab965876094cb
SHA5122d1bf18dbd5dfcc9c39cfee86e106574a5f494f2219916ca49b682e967c20155a4ea8820f8de234e58901d2025ecb63fc78222f1ce464b73b15648999d4914e3
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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
148KB
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Filesize
148KB
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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
2.2MB
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Filesize
2.2MB
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Filesize
632KB
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Filesize
632KB
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Filesize
2.2MB
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Filesize
4KB
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Filesize
4KB
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Filesize
2.2MB
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Filesize
752KB
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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