Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 07:56

General

  • Target

    file.exe

  • Size

    205KB

  • MD5

    4df955dcd23f20f6aea2bd174c44dca9

  • SHA1

    466b8734b8874bf880c6b451ec099cae531a1bc3

  • SHA256

    b61d968799d67e9061e759856e554974b644f18cba888addb3ced45462291c91

  • SHA512

    41015d3f8390af1463e78e2e05c38b6efdc537eebf0a9254be081badd0371dfd5a72b79d56e3590d23a067cb7500854e0efd0a496a8d50207b0549331ac19003

  • SSDEEP

    3072:ODa6j9gj4hm6655eHurt4cwDN974w+Yc8XuRDXSbGKWhVSo9jns5niOwRclQ:v6gchJurt43DXx+YclDvK0fs5nAJ

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\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2416
    • 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:3076
      • 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:4940
      • 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:2860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2416 -s 896
      2⤵
      • Program crash
      PID:948
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2416 -ip 2416
    1⤵
      PID:4280
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      1⤵
      • Executes dropped EXE
      PID:4076
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4076 -s 416
        2⤵
        • Program crash
        PID:1016
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4076 -ip 4076
      1⤵
        PID:2472
      • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        1⤵
        • Executes dropped EXE
        PID:3664
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3664 -s 416
          2⤵
          • Program crash
          PID:2356
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3664 -ip 3664
        1⤵
          PID:216

        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

          205KB

          MD5

          4df955dcd23f20f6aea2bd174c44dca9

          SHA1

          466b8734b8874bf880c6b451ec099cae531a1bc3

          SHA256

          b61d968799d67e9061e759856e554974b644f18cba888addb3ced45462291c91

          SHA512

          41015d3f8390af1463e78e2e05c38b6efdc537eebf0a9254be081badd0371dfd5a72b79d56e3590d23a067cb7500854e0efd0a496a8d50207b0549331ac19003

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

          205KB

          MD5

          4df955dcd23f20f6aea2bd174c44dca9

          SHA1

          466b8734b8874bf880c6b451ec099cae531a1bc3

          SHA256

          b61d968799d67e9061e759856e554974b644f18cba888addb3ced45462291c91

          SHA512

          41015d3f8390af1463e78e2e05c38b6efdc537eebf0a9254be081badd0371dfd5a72b79d56e3590d23a067cb7500854e0efd0a496a8d50207b0549331ac19003

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

          205KB

          MD5

          4df955dcd23f20f6aea2bd174c44dca9

          SHA1

          466b8734b8874bf880c6b451ec099cae531a1bc3

          SHA256

          b61d968799d67e9061e759856e554974b644f18cba888addb3ced45462291c91

          SHA512

          41015d3f8390af1463e78e2e05c38b6efdc537eebf0a9254be081badd0371dfd5a72b79d56e3590d23a067cb7500854e0efd0a496a8d50207b0549331ac19003

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

          205KB

          MD5

          4df955dcd23f20f6aea2bd174c44dca9

          SHA1

          466b8734b8874bf880c6b451ec099cae531a1bc3

          SHA256

          b61d968799d67e9061e759856e554974b644f18cba888addb3ced45462291c91

          SHA512

          41015d3f8390af1463e78e2e05c38b6efdc537eebf0a9254be081badd0371dfd5a72b79d56e3590d23a067cb7500854e0efd0a496a8d50207b0549331ac19003

        • 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/2416-133-0x0000000000CA0000-0x0000000000CDE000-memory.dmp
          Filesize

          248KB

        • memory/2416-134-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/2416-138-0x0000000000B6D000-0x0000000000B8C000-memory.dmp
          Filesize

          124KB

        • memory/2416-139-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/2416-132-0x0000000000B6D000-0x0000000000B8C000-memory.dmp
          Filesize

          124KB

        • memory/2860-147-0x0000000000000000-mapping.dmp
        • memory/3076-143-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/3076-142-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/3076-141-0x0000000000C4C000-0x0000000000C6B000-memory.dmp
          Filesize

          124KB

        • memory/3076-135-0x0000000000000000-mapping.dmp
        • memory/3664-151-0x0000000000C70000-0x0000000000C8F000-memory.dmp
          Filesize

          124KB

        • memory/3664-152-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/4076-145-0x0000000000C30000-0x0000000000C4F000-memory.dmp
          Filesize

          124KB

        • memory/4076-146-0x0000000000400000-0x0000000000AE5000-memory.dmp
          Filesize

          6.9MB

        • memory/4940-140-0x0000000000000000-mapping.dmp