Analysis
- max time kernel
140s - max time network
119s - platform
windows7_x64 - resource
win7-20231129-en - resource tags
- submitted
12/12/2023, 17:11
General
- Target tuc5.exe
- Size 7.2MB
- Sample231212-vqaafaaee4
- SHA256 a5d5a11a2774986acdd77d0fc40bd69bab8b40b72817717b60681ac9c946f236
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 5 IoCs
- Drops file in Program Files directory 6 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\tuc5.exe"C:\Users\Admin\AppData\Local\Temp\tuc5.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-F3E6N.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-F3E6N.tmp\tuc5.tmp" /SL5="$80130,7269570,121856,C:\Users\Admin\AppData\Local\Temp\tuc5.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
-
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
_iscrypt.dll
_isdecmp.dll
_shfoldr.dll
tuc5.tmp
memory/2848-2-0x0000000000400000-0x0000000000425000-memory.dmp
memory/2848-0-0x0000000000400000-0x0000000000425000-memory.dmp
memory/2848-36-0x0000000000400000-0x0000000000425000-memory.dmp
memory/2904-15-0x0000000000240000-0x0000000000241000-memory.dmp
memory/2904-37-0x0000000000400000-0x00000000004BC000-memory.dmp
memory/2904-40-0x0000000000240000-0x0000000000241000-memory.dmp