Analysis

  • max time kernel
    188s
  • max time network
    203s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2022, 03:48

General

  • Target

    22b4558e1d6d66465e5ef3241d3688a5e38c133820a4aa66a0494dc01481a0be.exe

  • Size

    658KB

  • MD5

    601ddad314b61246283fcaacdb1f9940

  • SHA1

    f8e47b1bbcc07bd06e47bbb409a7cefe50c8cc3a

  • SHA256

    22b4558e1d6d66465e5ef3241d3688a5e38c133820a4aa66a0494dc01481a0be

  • SHA512

    98aab411fc22ed4d8db9a6ccee4e72c4cfea9a27833a6f315d7a738f66c30d15ba7bcae386581d123186305eadcc0fe28b0a99bf3ea3f4caa0240ca1e536f084

  • SSDEEP

    12288:SaejG/5NwYkK19iOCr+TMoO30mYn0YaAsGhQHxM5DKTrH5eZQ2d:2jGAK19iOCr+TMoO30mYn0YaAstHxM5h

Score
8/10

Malware Config

Signatures

  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 3 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\22b4558e1d6d66465e5ef3241d3688a5e38c133820a4aa66a0494dc01481a0be.exe
    "C:\Users\Admin\AppData\Local\Temp\22b4558e1d6d66465e5ef3241d3688a5e38c133820a4aa66a0494dc01481a0be.exe"
    1⤵
    • Sets DLL path for service in the registry
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4784
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\22B455~1.EXE" > nul
      2⤵
        PID:1120
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k ".Net CLR"
      1⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1296
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe c:\windows\system32\e57594b.dll, Launch
        2⤵
        • Loads dropped DLL
        PID:3984

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\e57594b.dll

      Filesize

      610KB

      MD5

      2b194e786f58b20023e29bd464843c4e

      SHA1

      00601e9d4908b252af37e45ce06e04b587911e30

      SHA256

      afd906c340b56687ddff5f95ee62830b77eadc2008e88cb1117bac26b33a653d

      SHA512

      ed7b53b308126922a73965f1c9fdd5faeb2c3662adacc1b3cf1474b171c766c479ddc81e9a2a8813106a96a44b092800977c374f8027d7565228422f4a46b476

    • C:\Windows\SysWOW64\e57594b.dll

      Filesize

      610KB

      MD5

      2b194e786f58b20023e29bd464843c4e

      SHA1

      00601e9d4908b252af37e45ce06e04b587911e30

      SHA256

      afd906c340b56687ddff5f95ee62830b77eadc2008e88cb1117bac26b33a653d

      SHA512

      ed7b53b308126922a73965f1c9fdd5faeb2c3662adacc1b3cf1474b171c766c479ddc81e9a2a8813106a96a44b092800977c374f8027d7565228422f4a46b476

    • C:\Windows\SysWOW64\e57594b.dll

      Filesize

      610KB

      MD5

      2b194e786f58b20023e29bd464843c4e

      SHA1

      00601e9d4908b252af37e45ce06e04b587911e30

      SHA256

      afd906c340b56687ddff5f95ee62830b77eadc2008e88cb1117bac26b33a653d

      SHA512

      ed7b53b308126922a73965f1c9fdd5faeb2c3662adacc1b3cf1474b171c766c479ddc81e9a2a8813106a96a44b092800977c374f8027d7565228422f4a46b476

    • \??\c:\windows\SysWOW64\e57594b.dll

      Filesize

      610KB

      MD5

      2b194e786f58b20023e29bd464843c4e

      SHA1

      00601e9d4908b252af37e45ce06e04b587911e30

      SHA256

      afd906c340b56687ddff5f95ee62830b77eadc2008e88cb1117bac26b33a653d

      SHA512

      ed7b53b308126922a73965f1c9fdd5faeb2c3662adacc1b3cf1474b171c766c479ddc81e9a2a8813106a96a44b092800977c374f8027d7565228422f4a46b476