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Analysis
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max time kernel
144s -
max time network
141s -
platform
windows7_x64 -
resource
win7-20231130-en -
resource tags
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submitted
11/12/2023, 12:36
General
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Target
tuc3.exe
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Size
6.9MB
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MD5
197a367835c8c035f402dffcf377c32c
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SHA1
d4f78eeb4583df1a56b367adf5cb443d3b8a6441
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SHA256
382696478fca3505f35fa47324b10b5ff9e4ed5b1f2b7f38395cf4c1430a70d1
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SHA512
42a91db9031a8171525ec535518a6ee34acef55153f425b12d50b3e5b849ff6a5e021d0e53a64540fc7bccb7e2e0f3889f8351246b701cd61ada4b01a64dbcff
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SSDEEP
196608:6W0fKLtr95HARqIrmVY8S50UL8Kj8yTwHvWY3Nzj:6tO/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 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\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-944NJ.tmp\tuc3.tmp"C:\Users\Admin\AppData\Local\Temp\is-944NJ.tmp\tuc3.tmp" /SL5="$600DE,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
1.7MB
MD592fb88f9a9c967befc05298f309a2bce
SHA13c0ae84f2530ac338fad1b37049c14db8b50432c
SHA25600e2bc055e2ae558eb089bd4315057f3ff480e47df8350a15d180b77cf5b21c2
SHA5123865f0cd64e0c6097f0fc0c946a4aa033c478b00d9c8eb7b60bcf86a8f34e8882ce3f04349518c1a2ce147ca771d355d19be0d5df3379636b664e2a692fc6eb3
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Filesize
1.8MB
MD511793f6b69b2df9823a26f0356c191da
SHA1ee7d551f6bcdd993f338a73fbef8e4f2a7e072fd
SHA256ee80b4359afed08948ef90984bb846e18ef2ba254253322d6a7d64b60654fb3a
SHA512c482e23f88615c1ca6b44a097c909ccf763f1158c9bd1a8689c1a6590cbc2717f3dd0173a14b582076fe57d00ab50e900caae650a0f6f90d917215a843473b3d
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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
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
4KB
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Filesize
1.8MB
-
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
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
632KB
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Filesize
632KB
-
Filesize
1.8MB
-
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
1.8MB
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Filesize
1.8MB
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Filesize
632KB
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Filesize
96KB
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Filesize
96KB