Analysis
-
max time kernel
144s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
-
submitted
11-12-2023 12:47
General
-
Target
tuc3.exe
-
Size
6.9MB
-
MD5
6e3f37a4d5aa1accd66029feaeb278e6
-
SHA1
cf28f82e1ab8bbbf45e748cb077f3913368a57a1
-
SHA256
09e0efb9b038e801d749d2ab35e1375075694f148e8459934325f6fb2678752a
-
SHA512
d57a6c942e68be9cc56eed07029db148d04c3936100c839707f1ac726a1058b9c5289e9fda34fcced6dbe0f4bc36ecdd2cb7abdad5283319b27d4d09e8214f5e
-
SSDEEP
196608:BW0fKLtr95HARqIrmVY8S50UL8Kj8yTwHvWY3Nzj:BtO/hAPmVNyEWeNzj
Malware Config
Signatures
-
Executes dropped EXE 3 IoCs
-
Loads dropped DLL 3 IoCs
-
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
-
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Drops file in Program Files directory 63 IoCs
-
Runs net.exe
-
Suspicious use of FindShellTrayWindow 1 IoCs
-
Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\tuc3.exe"C:\Users\Admin\AppData\Local\Temp\tuc3.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-N996D.tmp\tuc3.tmp"C:\Users\Admin\AppData\Local\Temp\is-N996D.tmp\tuc3.tmp" /SL5="$90058,6973457,68096,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
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵
-
-
C:\Program Files (x86)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Program Files (x86)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s3⤵
- Executes dropped EXE
-
-
C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 113⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 114⤵
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1.8MB
MD511793f6b69b2df9823a26f0356c191da
SHA1ee7d551f6bcdd993f338a73fbef8e4f2a7e072fd
SHA256ee80b4359afed08948ef90984bb846e18ef2ba254253322d6a7d64b60654fb3a
SHA512c482e23f88615c1ca6b44a097c909ccf763f1158c9bd1a8689c1a6590cbc2717f3dd0173a14b582076fe57d00ab50e900caae650a0f6f90d917215a843473b3d
-
Filesize
1.3MB
MD5f5cc900e7692c30595477a9167ac64f6
SHA161a394cd27cb919d8ba15a6cfa5a57553fb02521
SHA256a26bc6707b77a3ab5f4b7133af9c7dc9e732253d893085bad6f139c5e0665206
SHA51228996ea22d2ef7cc2e4c3ff49d657f99cbc9a610d3ea001ed7b5e03ff1cb7e73e44adcca1ef6520e98714fe194e693ee76285cd5ba7d14f6d4e50c667bc267dc
-
Filesize
563KB
MD5a55c1508666439d55f61176e9c522c2e
SHA14f8e38590a5b847b5865926a002e3bdd56d58476
SHA2569a7f778ce9c4f8ee65b127955818b3fa6d3b5b95a2324f92ce8c4375b2fa7738
SHA5122ae9784150ba7b60a214546161352a0486e1fd09fe11a7b4ccd72547b896692d80928339ffc26f57baa686745c572ef42d2a5e10cb6da112dc6af3b6c5465560
-
Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
Filesize
19KB
MD53adaa386b671c2df3bae5b39dc093008
SHA1067cf95fbdb922d81db58432c46930f86d23dded
SHA25671cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38
SHA512bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303
-
Filesize
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
-
Filesize
96KB
-
Filesize
96KB
-
Filesize
96KB
-
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
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
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
632KB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
752KB