Analysis

  • max time kernel
    109s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 13:05

General

  • Target

    fc0da7c727a890e450fced0089b195922cdba1b554c24b8c5f32b5c6f16cc147.exe

  • Size

    206KB

  • MD5

    243ee02d27bfa2ded4238d4ee5a18ac7

  • SHA1

    75bdfe33985f539d2366668301a8cda5750d3d62

  • SHA256

    fc0da7c727a890e450fced0089b195922cdba1b554c24b8c5f32b5c6f16cc147

  • SHA512

    6744c38c882a6a883b8b1094eb8f092d0289df8b905082727b4cd346abc2bf3d0c5e1ac011bd696c789cd4fefa09b3b97200e75f0c59dec19beb4bc6e1cca0b6

  • SSDEEP

    3072:4LNEmnuQpNv5k8EikeBw69BIlh955OECiBJKE4mRgA9oat8R9TJeSw0M:kBnvpU8Eikt69OP95AEhJLT1k9TJhw

Malware Config

Extracted

Family

amadey

Version

3.50

C2

31.41.244.17/hfk3vK9/index.php

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Detect Amadey credential stealer module 2 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc0da7c727a890e450fced0089b195922cdba1b554c24b8c5f32b5c6f16cc147.exe
    "C:\Users\Admin\AppData\Local\Temp\fc0da7c727a890e450fced0089b195922cdba1b554c24b8c5f32b5c6f16cc147.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2556
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4972
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN gntuud.exe /TR "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe" /F
        3⤵
        • Creates scheduled task(s)
        PID:1672
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • outlook_win_path
        PID:4408
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2556 -s 904
      2⤵
      • Program crash
      PID:2240
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2556 -ip 2556
    1⤵
      PID:4064
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      1⤵
      • Executes dropped EXE
      PID:3064
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3064 -s 424
        2⤵
        • Program crash
        PID:1984
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3064 -ip 3064
      1⤵
        PID:4548
      • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        1⤵
        • Executes dropped EXE
        PID:4724
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 416
          2⤵
          • Program crash
          PID:4436
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4724 -ip 4724
        1⤵
          PID:4424

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Execution

        Scheduled Task

        1
        T1053

        Persistence

        Scheduled Task

        1
        T1053

        Privilege Escalation

        Scheduled Task

        1
        T1053

        Credential Access

        Credentials in Files

        1
        T1081

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        Collection

        Data from Local System

        1
        T1005

        Email Collection

        1
        T1114

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
          Filesize

          206KB

          MD5

          243ee02d27bfa2ded4238d4ee5a18ac7

          SHA1

          75bdfe33985f539d2366668301a8cda5750d3d62

          SHA256

          fc0da7c727a890e450fced0089b195922cdba1b554c24b8c5f32b5c6f16cc147

          SHA512

          6744c38c882a6a883b8b1094eb8f092d0289df8b905082727b4cd346abc2bf3d0c5e1ac011bd696c789cd4fefa09b3b97200e75f0c59dec19beb4bc6e1cca0b6

        • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
          Filesize

          206KB

          MD5

          243ee02d27bfa2ded4238d4ee5a18ac7

          SHA1

          75bdfe33985f539d2366668301a8cda5750d3d62

          SHA256

          fc0da7c727a890e450fced0089b195922cdba1b554c24b8c5f32b5c6f16cc147

          SHA512

          6744c38c882a6a883b8b1094eb8f092d0289df8b905082727b4cd346abc2bf3d0c5e1ac011bd696c789cd4fefa09b3b97200e75f0c59dec19beb4bc6e1cca0b6

        • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
          Filesize

          206KB

          MD5

          243ee02d27bfa2ded4238d4ee5a18ac7

          SHA1

          75bdfe33985f539d2366668301a8cda5750d3d62

          SHA256

          fc0da7c727a890e450fced0089b195922cdba1b554c24b8c5f32b5c6f16cc147

          SHA512

          6744c38c882a6a883b8b1094eb8f092d0289df8b905082727b4cd346abc2bf3d0c5e1ac011bd696c789cd4fefa09b3b97200e75f0c59dec19beb4bc6e1cca0b6

        • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
          Filesize

          206KB

          MD5

          243ee02d27bfa2ded4238d4ee5a18ac7

          SHA1

          75bdfe33985f539d2366668301a8cda5750d3d62

          SHA256

          fc0da7c727a890e450fced0089b195922cdba1b554c24b8c5f32b5c6f16cc147

          SHA512

          6744c38c882a6a883b8b1094eb8f092d0289df8b905082727b4cd346abc2bf3d0c5e1ac011bd696c789cd4fefa09b3b97200e75f0c59dec19beb4bc6e1cca0b6

        • C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
          Filesize

          126KB

          MD5

          adbaf286228c46522e50371c4be31a03

          SHA1

          a29d644c4663b2e2b2bd92046ba0df629537c297

          SHA256

          d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0

          SHA512

          74a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d

        • C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
          Filesize

          126KB

          MD5

          adbaf286228c46522e50371c4be31a03

          SHA1

          a29d644c4663b2e2b2bd92046ba0df629537c297

          SHA256

          d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0

          SHA512

          74a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d

        • memory/1672-141-0x0000000000000000-mapping.dmp
        • memory/2556-139-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/2556-138-0x0000000000C40000-0x0000000000C7E000-memory.dmp
          Filesize

          248KB

        • memory/2556-137-0x0000000000C9E000-0x0000000000CBD000-memory.dmp
          Filesize

          124KB

        • memory/3064-146-0x0000000000D00000-0x0000000000D1F000-memory.dmp
          Filesize

          124KB

        • memory/3064-147-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/4408-148-0x0000000000000000-mapping.dmp
        • memory/4724-152-0x0000000000CD0000-0x0000000000CEF000-memory.dmp
          Filesize

          124KB

        • memory/4724-153-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/4972-142-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/4972-143-0x0000000000E9C000-0x0000000000EBB000-memory.dmp
          Filesize

          124KB

        • memory/4972-144-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/4972-140-0x0000000000E9C000-0x0000000000EBB000-memory.dmp
          Filesize

          124KB

        • memory/4972-134-0x0000000000000000-mapping.dmp