Analysis
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max time kernel
147s -
max time network
136s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
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submitted
11/12/2023, 14:07
General
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Target
tuc3.exe
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Size
6.9MB
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MD5
9704183a61c456a9d08e530dc1da47ed
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SHA1
bbe01f6355214f7de8acd9d9c9a78ebb7f9c8379
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SHA256
cbcb6cc862a5607b0b78f11eb1c1cb7faa7a53c67c2059cd3829eac084d02c8b
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SHA512
aa2a09a5eebd80957388f09f63aad2533b0aff7f05e28e8325e323ef53aaed808d7011cd38d52bd47067bdfe1f000e27629a9e2520a1cbd7221ac16b70373332
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SSDEEP
196608:/W0fKLtr95HARqIrmVY8S50UL8Kj8yTwHvWY3Nzj:/tO/hAPmVNyEWeNzj
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 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 27 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc3.exe"C:\Users\Admin\AppData\Local\Temp\tuc3.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-NU1G3.tmp\tuc3.tmp"C:\Users\Admin\AppData\Local\Temp\is-NU1G3.tmp\tuc3.tmp" /SL5="$50150,6973457,68096,C:\Users\Admin\AppData\Local\Temp\tuc3.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)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i3⤵
- Executes dropped EXE
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C:\Program Files (x86)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.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
1.1MB
MD5b77ed0af71a68ef45592100a76e2db34
SHA1d8069f7fe6d339586126712a9dd835cc7d0548a6
SHA2568e03ee147f0aa0df3b390da4520c33ac77a9cb8de22b6a64bc3315867a2153f9
SHA5125b99d39f9c162dc4145e583624f35f6fa2ab23a8652ef4835f3dcdd5d07d1a6e2ab40b9022dd3439581971fa456ce2699d5edce94402eaa267ac6642f657bc4c
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Filesize
1.8MB
MD511793f6b69b2df9823a26f0356c191da
SHA1ee7d551f6bcdd993f338a73fbef8e4f2a7e072fd
SHA256ee80b4359afed08948ef90984bb846e18ef2ba254253322d6a7d64b60654fb3a
SHA512c482e23f88615c1ca6b44a097c909ccf763f1158c9bd1a8689c1a6590cbc2717f3dd0173a14b582076fe57d00ab50e900caae650a0f6f90d917215a843473b3d
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Filesize
65KB
MD5507d88d7dfcc269807daf14f709c45fd
SHA12428c9cfb5e5036c36d8661431014c3a47e50b1f
SHA25683f0d71fadede7300b4a70e7172f9c7e30cf0388ac5f469a51f15ab884289dfd
SHA51240c6985c972c68fab1c3bfacb622bc349a8c389c55cb912367c0c7da846d218fc4584efa0461ccb4789d91738918ee603851762d9ae797bf3755b93c212302b2
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Filesize
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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Filesize
128KB
MD5051e1995c4c9f2dec4797371107a1bcf
SHA19e334ae42fb06faf046c7846f258d413e77c404b
SHA2567b75a30f8f7759ee10e82d49037208190e8d08d67d2e7fd6bef1e27b62f66e3b
SHA5128eba56683c1e4b1a7c6dccb5a5207681268c7b656ce3ae6ca25d83f2b07419124e716d737f612e337fb27a4992e7f63b30d5aabbb565709876c79647d38e9036
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Filesize
1.1MB
MD555006953f2476147207d89b3764302fa
SHA15050e666d15581e586b5dff0309880c01d34c499
SHA25693b57a101f20c6caf2648ce0675a721de579edc540030c3555db4976a458713e
SHA5123e4b508747c1f660b78f1203d075645e810e3050465630853f4f925ba8a1a97ff6ae493f311471a7dfd9208c30627f7634b1454c192450b682b7ed4b2c46c9fc
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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
64KB
MD551c33e9596de92f526b0f54fc3f64a98
SHA1ab1389f9a5dfa0b02f5fd7edcee29bf240ba8be6
SHA256f9447f91e7bb104d0f37f1870a388fd7fe359f6b649f1a27fe767e9962fee345
SHA5122ddd4a10853b53201445140d9e17ab0a2a35e0635a76c3cf8ce34dbc8ae7a59bc6ce2306f97a8c88e6dd5ec5da781315c133c363f6c728d5d53585f06df386a5
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Filesize
96KB
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Filesize
96KB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
632KB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
632KB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
632KB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
-
Filesize
1.8MB
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Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
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Filesize
632KB
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Filesize
632KB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
4KB
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Filesize
752KB
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Filesize
1.8MB
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Filesize
4KB