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Analysis

  • max time kernel
    105s
  • max time network
    267s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/11/2023, 04:23

General

  • Target

    Google Chrome Update.exe

  • Size

    9.0MB

  • MD5

    87d78602fff2ef76fc4fdb949b94736a

  • SHA1

    6c38327cdeb03b849a6743bf0e32d3c75ca5e318

  • SHA256

    800f0f4c3cc2ba2195d8b527eba6a6a5b76f9aff55a6022814829ff00d433a8f

  • SHA512

    d682e082631eb4f4036501106b8687eb30a7d4119326eb62832548ba20078c65acf53821db1181ee72c593bea1bbd1175b19c439c7cc65323ec6ebbaf128354a

  • SSDEEP

    98304:s5TPERvFtw3WiikBkkkkk0p+GWmrZ+s5OhVvbj08DjGljYukqFgsJ:s5j33WOlWmh5OhVjHGK4g

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Google Chrome Update.exe
    "C:\Users\Admin\AppData\Local\Temp\Google Chrome Update.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1912
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System Runtime Monitor.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3124
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Applications\Runtime Broker.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4896

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

    Filesize

    944B

    MD5

    6d42b6da621e8df5674e26b799c8e2aa

    SHA1

    ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

    SHA256

    5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

    SHA512

    53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sdadqu3q.ttn.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1912-34-0x00007FF645250000-0x00007FF645B7C000-memory.dmp

    Filesize

    9.2MB

  • memory/1912-0-0x00007FF645250000-0x00007FF645B7C000-memory.dmp

    Filesize

    9.2MB

  • memory/3124-32-0x00007FFAFFEC0000-0x00007FFB00981000-memory.dmp

    Filesize

    10.8MB

  • memory/3124-25-0x000001E7091C0000-0x000001E7091D0000-memory.dmp

    Filesize

    64KB

  • memory/3124-21-0x000001E7091C0000-0x000001E7091D0000-memory.dmp

    Filesize

    64KB

  • memory/3124-15-0x000001E7218B0000-0x000001E7218D2000-memory.dmp

    Filesize

    136KB

  • memory/3124-35-0x00007FFAFFEC0000-0x00007FFB00981000-memory.dmp

    Filesize

    10.8MB

  • memory/4896-23-0x000001BFE4960000-0x000001BFE4970000-memory.dmp

    Filesize

    64KB

  • memory/4896-24-0x000001BFE4960000-0x000001BFE4970000-memory.dmp

    Filesize

    64KB

  • memory/4896-26-0x000001BFE4960000-0x000001BFE4970000-memory.dmp

    Filesize

    64KB

  • memory/4896-22-0x000001BFE4960000-0x000001BFE4970000-memory.dmp

    Filesize

    64KB

  • memory/4896-20-0x00007FFAFFEC0000-0x00007FFB00981000-memory.dmp

    Filesize

    10.8MB

  • memory/4896-33-0x00007FFAFFEC0000-0x00007FFB00981000-memory.dmp

    Filesize

    10.8MB