Analysis
- max time kernel
151s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20231127-en - resource tags
- submitted
11/12/2023, 16:18
General
- Target tuc6.exe
- Size 7.5MB
- Sample231211-tr19wabhap
- SHA256 fc3da9afd0ae15e47c19f176807017bc16b05beda7c96fab5366455f658f7b1c
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
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C:\Users\Admin\AppData\Local\Temp\tuc6.exe"C:\Users\Admin\AppData\Local\Temp\tuc6.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-JK6PP.tmp\tuc6.tmp"C:\Users\Admin\AppData\Local\Temp\is-JK6PP.tmp\tuc6.tmp" /SL5="$501C8,7577497,68096,C:\Users\Admin\AppData\Local\Temp\tuc6.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)\PlayGIF\gifplayer.exe"C:\Program Files (x86)\PlayGIF\gifplayer.exe" -i3⤵
- Executes dropped EXE
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C:\Program Files (x86)\PlayGIF\gifplayer.exe"C:\Program Files (x86)\PlayGIF\gifplayer.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
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Downloads
gifplayer.exe
gifplayer.exe
gifplayer.exe
_iscrypt.dll
_isdecmp.dll
tuc6.tmp
memory/2244-162-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-167-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-208-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-205-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-201-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-198-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-158-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-159-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-195-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-192-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-191-0x0000000000860000-0x00000000008FE000-memory.dmp
memory/2244-188-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-166-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-185-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-170-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-173-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-176-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-179-0x0000000000400000-0x0000000000666000-memory.dmp
memory/2244-180-0x0000000000860000-0x00000000008FE000-memory.dmp
memory/2676-163-0x0000000000590000-0x0000000000591000-memory.dmp
memory/2676-161-0x0000000000400000-0x00000000004BC000-memory.dmp
memory/2676-12-0x0000000000590000-0x0000000000591000-memory.dmp
memory/3352-150-0x0000000000400000-0x0000000000666000-memory.dmp
memory/3352-154-0x0000000000400000-0x0000000000666000-memory.dmp
memory/3352-152-0x0000000000400000-0x0000000000666000-memory.dmp
memory/3524-0-0x0000000000400000-0x0000000000418000-memory.dmp
memory/3524-160-0x0000000000400000-0x0000000000418000-memory.dmp
memory/3524-2-0x0000000000400000-0x0000000000418000-memory.dmp