Analysis

  • max time kernel
    300s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    26/12/2022, 04:04

General

  • Target

    781f273dcf2fc98a60b600dc16b52f41a25e5d701212c1822ada88a8ce15e9db.exe

  • Size

    135KB

  • MD5

    10e9f08a128e0a4f26427ecdd1293646

  • SHA1

    61967c24f67ba1b0194d74f9dd7f8d8e95c8df0a

  • SHA256

    781f273dcf2fc98a60b600dc16b52f41a25e5d701212c1822ada88a8ce15e9db

  • SHA512

    926abad90e879365426ba5203cd188726254392c73f3e23fa14f9656a8745f00994f4077c899dd9280bdc33b4140198bbd867cdc529fd3b2574dee45932a389b

  • SSDEEP

    3072:j//bjFcuc8BQf9S8hx4e96a+dwW8wpy0g:j7jFV6omwpM

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in System32 directory 13 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 22 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    1⤵
      PID:464
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k netsvcs
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Suspicious use of SetThreadContext
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:888
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k WspService
        2⤵
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        PID:856
    • C:\Users\Admin\AppData\Local\Temp\781f273dcf2fc98a60b600dc16b52f41a25e5d701212c1822ada88a8ce15e9db.exe
      "C:\Users\Admin\AppData\Local\Temp\781f273dcf2fc98a60b600dc16b52f41a25e5d701212c1822ada88a8ce15e9db.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1784
      • C:\Users\Admin\AppData\Local\Temp\781f273dcf2fc98a60b600dc16b52f41a25e5d701212c1822ada88a8ce15e9db.exe
        "C:\Users\Admin\AppData\Local\Temp\781f273dcf2fc98a60b600dc16b52f41a25e5d701212c1822ada88a8ce15e9db.exe" -h
        2⤵
          PID:1764
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
        1⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:776
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
          2⤵
          • Loads dropped DLL
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1912

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\db.dat

        Filesize

        557KB

        MD5

        432870a155b38d322bf7135c8203f182

        SHA1

        e5e757c677b9e4a4e2694cd72cd623ac5cdd5fce

        SHA256

        24d8921cc8ac14b2eb7846b867b46780b67e742feb4aaefece21164e1d50999c

        SHA512

        ce4e1c32ad4cfba3e9d896a253279920e423b2d4b8c55cfe6820e9e48ff7d271c68367ebaf9f1812132a616d8ea9260032bbe7a751a2ce780a19c834ecb09efb

      • C:\Users\Admin\AppData\Local\Temp\db.dll

        Filesize

        52KB

        MD5

        0b35335b70b96d31633d0caa207d71f9

        SHA1

        996c7804fe4d85025e2bd7ea8aa5e33c71518f84

        SHA256

        ec01d244074f45d4f698f5713147e99d76053824a648b306e1debf69f3ba9ce6

        SHA512

        ab3d770e99b3f379165863808f3ffc55d64d8e9384a158e6695d7325e97fa1bb570c5088ccdc1d2c3b90df5be11d6722ede15e7b6552bf90e748cb9c28ab94ce

      • \Users\Admin\AppData\Local\Temp\db.dll

        Filesize

        52KB

        MD5

        0b35335b70b96d31633d0caa207d71f9

        SHA1

        996c7804fe4d85025e2bd7ea8aa5e33c71518f84

        SHA256

        ec01d244074f45d4f698f5713147e99d76053824a648b306e1debf69f3ba9ce6

        SHA512

        ab3d770e99b3f379165863808f3ffc55d64d8e9384a158e6695d7325e97fa1bb570c5088ccdc1d2c3b90df5be11d6722ede15e7b6552bf90e748cb9c28ab94ce

      • \Users\Admin\AppData\Local\Temp\db.dll

        Filesize

        52KB

        MD5

        0b35335b70b96d31633d0caa207d71f9

        SHA1

        996c7804fe4d85025e2bd7ea8aa5e33c71518f84

        SHA256

        ec01d244074f45d4f698f5713147e99d76053824a648b306e1debf69f3ba9ce6

        SHA512

        ab3d770e99b3f379165863808f3ffc55d64d8e9384a158e6695d7325e97fa1bb570c5088ccdc1d2c3b90df5be11d6722ede15e7b6552bf90e748cb9c28ab94ce

      • \Users\Admin\AppData\Local\Temp\db.dll

        Filesize

        52KB

        MD5

        0b35335b70b96d31633d0caa207d71f9

        SHA1

        996c7804fe4d85025e2bd7ea8aa5e33c71518f84

        SHA256

        ec01d244074f45d4f698f5713147e99d76053824a648b306e1debf69f3ba9ce6

        SHA512

        ab3d770e99b3f379165863808f3ffc55d64d8e9384a158e6695d7325e97fa1bb570c5088ccdc1d2c3b90df5be11d6722ede15e7b6552bf90e748cb9c28ab94ce

      • \Users\Admin\AppData\Local\Temp\db.dll

        Filesize

        52KB

        MD5

        0b35335b70b96d31633d0caa207d71f9

        SHA1

        996c7804fe4d85025e2bd7ea8aa5e33c71518f84

        SHA256

        ec01d244074f45d4f698f5713147e99d76053824a648b306e1debf69f3ba9ce6

        SHA512

        ab3d770e99b3f379165863808f3ffc55d64d8e9384a158e6695d7325e97fa1bb570c5088ccdc1d2c3b90df5be11d6722ede15e7b6552bf90e748cb9c28ab94ce

      • memory/856-82-0x0000000001D40000-0x0000000001D60000-memory.dmp

        Filesize

        128KB

      • memory/856-84-0x00000000026F0000-0x00000000027FA000-memory.dmp

        Filesize

        1.0MB

      • memory/856-64-0x0000000000100000-0x000000000014D000-memory.dmp

        Filesize

        308KB

      • memory/856-83-0x0000000001D60000-0x0000000001D7B000-memory.dmp

        Filesize

        108KB

      • memory/856-81-0x00000000026F0000-0x00000000027FA000-memory.dmp

        Filesize

        1.0MB

      • memory/856-79-0x0000000000430000-0x00000000004A2000-memory.dmp

        Filesize

        456KB

      • memory/856-71-0x0000000000100000-0x000000000014D000-memory.dmp

        Filesize

        308KB

      • memory/856-80-0x00000000005F0000-0x000000000060B000-memory.dmp

        Filesize

        108KB

      • memory/856-68-0x0000000000430000-0x00000000004A2000-memory.dmp

        Filesize

        456KB

      • memory/856-78-0x000007FEFC1B1000-0x000007FEFC1B3000-memory.dmp

        Filesize

        8KB

      • memory/888-70-0x0000000000FE0000-0x0000000001052000-memory.dmp

        Filesize

        456KB

      • memory/1784-54-0x00000000767F1000-0x00000000767F3000-memory.dmp

        Filesize

        8KB

      • memory/1912-69-0x0000000000670000-0x00000000006CE000-memory.dmp

        Filesize

        376KB

      • memory/1912-67-0x0000000001E80000-0x0000000001F81000-memory.dmp

        Filesize

        1.0MB