Analysis

  • max time kernel
    114s
  • max time network
    136s
  • 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 08:56

General

  • Target

    file.exe

  • Size

    204KB

  • MD5

    eac9d7d0af5f683503ec603650d352cd

  • SHA1

    eecd0104a3c40b85d2cd75d4814e40a0a8d694ea

  • SHA256

    6f98e53c34fb0ac52edf9c82ca710191a59c8f52bf0bc4defabe2cc6e884d0bd

  • SHA512

    f6eaa3c3145974c56b939e29f92fdd7f1d32ff053679951f921c51413e3a93956ea840ee4aa872c1a944e20fd9dbb7ee3a5712b114c367fdfc1cbaf111bf363f

  • SSDEEP

    3072:wsmfIr2yEHXl65J7pZuSCCZyTJhx5N2mWNEss3swQTgluUyQBBjkZdEVEWsmI:Mg2yEIfuyyTnxr2jNRwQTgDdmdbW

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 4 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 2 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\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4880
    • 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:3660
      • 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:1916
      • 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:964
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 1136
      2⤵
      • Program crash
      PID:3172
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4880 -ip 4880
    1⤵
      PID:3484
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      1⤵
      • Executes dropped EXE
      PID:3324
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 416
        2⤵
        • Program crash
        PID:2452
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3324 -ip 3324
      1⤵
        PID:2256
      • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        1⤵
        • Executes dropped EXE
        PID:1424
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1424 -s 416
          2⤵
          • Program crash
          PID:2980
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1424 -ip 1424
        1⤵
          PID:1484

        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

          204KB

          MD5

          eac9d7d0af5f683503ec603650d352cd

          SHA1

          eecd0104a3c40b85d2cd75d4814e40a0a8d694ea

          SHA256

          6f98e53c34fb0ac52edf9c82ca710191a59c8f52bf0bc4defabe2cc6e884d0bd

          SHA512

          f6eaa3c3145974c56b939e29f92fdd7f1d32ff053679951f921c51413e3a93956ea840ee4aa872c1a944e20fd9dbb7ee3a5712b114c367fdfc1cbaf111bf363f

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

          204KB

          MD5

          eac9d7d0af5f683503ec603650d352cd

          SHA1

          eecd0104a3c40b85d2cd75d4814e40a0a8d694ea

          SHA256

          6f98e53c34fb0ac52edf9c82ca710191a59c8f52bf0bc4defabe2cc6e884d0bd

          SHA512

          f6eaa3c3145974c56b939e29f92fdd7f1d32ff053679951f921c51413e3a93956ea840ee4aa872c1a944e20fd9dbb7ee3a5712b114c367fdfc1cbaf111bf363f

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

          204KB

          MD5

          eac9d7d0af5f683503ec603650d352cd

          SHA1

          eecd0104a3c40b85d2cd75d4814e40a0a8d694ea

          SHA256

          6f98e53c34fb0ac52edf9c82ca710191a59c8f52bf0bc4defabe2cc6e884d0bd

          SHA512

          f6eaa3c3145974c56b939e29f92fdd7f1d32ff053679951f921c51413e3a93956ea840ee4aa872c1a944e20fd9dbb7ee3a5712b114c367fdfc1cbaf111bf363f

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

          204KB

          MD5

          eac9d7d0af5f683503ec603650d352cd

          SHA1

          eecd0104a3c40b85d2cd75d4814e40a0a8d694ea

          SHA256

          6f98e53c34fb0ac52edf9c82ca710191a59c8f52bf0bc4defabe2cc6e884d0bd

          SHA512

          f6eaa3c3145974c56b939e29f92fdd7f1d32ff053679951f921c51413e3a93956ea840ee4aa872c1a944e20fd9dbb7ee3a5712b114c367fdfc1cbaf111bf363f

        • 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

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

          126KB

          MD5

          adbaf286228c46522e50371c4be31a03

          SHA1

          a29d644c4663b2e2b2bd92046ba0df629537c297

          SHA256

          d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0

          SHA512

          74a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d

        • memory/964-150-0x00000000007D0000-0x00000000007F4000-memory.dmp
          Filesize

          144KB

        • memory/964-146-0x0000000000000000-mapping.dmp
        • memory/1424-152-0x0000000000DE0000-0x0000000000DFF000-memory.dmp
          Filesize

          124KB

        • memory/1424-153-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/1916-140-0x0000000000000000-mapping.dmp
        • memory/3324-144-0x0000000000D60000-0x0000000000D7F000-memory.dmp
          Filesize

          124KB

        • memory/3324-145-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/3660-142-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/3660-132-0x0000000000000000-mapping.dmp
        • memory/3660-141-0x0000000000BBC000-0x0000000000BDB000-memory.dmp
          Filesize

          124KB

        • memory/3660-139-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/3660-138-0x0000000000BBC000-0x0000000000BDB000-memory.dmp
          Filesize

          124KB

        • memory/4880-137-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/4880-136-0x0000000000C80000-0x0000000000CBE000-memory.dmp
          Filesize

          248KB

        • memory/4880-135-0x0000000000D2D000-0x0000000000D4C000-memory.dmp
          Filesize

          124KB