Analysis

  • max time kernel
    244s
  • max time network
    348s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    07/12/2022, 14:02

General

  • Target
    file.exe
  • Size 322KB
  • Sample221207-rb5agsfb22
  • SHA256 eac89b852809795ba5be7c8fe1c4dfbfca83f3598d8170986addbbb62de1545b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 3.50

C2
  • 31.41.244.167/v7eWcjs/index.php

Signatures

  • Amadey

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

  • Detect Amadey credential stealer module 5 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 26 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1924
      • 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:1776
      • C:\Users\Admin\AppData\Local\Temp\1000016001\linda5.exe
        "C:\Users\Admin\AppData\Local\Temp\1000016001\linda5.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:596
        • C:\Windows\SysWOW64\regsvr32.exe
          "C:\Windows\System32\regsvr32.exe" V7SDj~.zZi /u -s
          4⤵
          • Loads dropped DLL
          PID:1624
      • 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:2040

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        linda5.exe

        • Path C:\Users\Admin\AppData\Local\Temp\1000016001\linda5.exe
        • Size 1.4MB
        • SHA256 39ac15b198579512c52541043b79fbd5b5ae05e31cc542be33d398298256dbd6
        • MD5 SHA1 SHA512 SSDEEP

        linda5.exe

        • Path C:\Users\Admin\AppData\Local\Temp\1000016001\linda5.exe
        • Size 1.4MB
        • SHA256 39ac15b198579512c52541043b79fbd5b5ae05e31cc542be33d398298256dbd6
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 322KB
        • SHA256 eac89b852809795ba5be7c8fe1c4dfbfca83f3598d8170986addbbb62de1545b
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 322KB
        • SHA256 eac89b852809795ba5be7c8fe1c4dfbfca83f3598d8170986addbbb62de1545b
        • MD5 SHA1 SHA512 SSDEEP

        V7SDj~.zZi

        • Path C:\Users\Admin\AppData\Local\Temp\V7SDj~.zZi
        • Size 2.3MB
        • SHA256 aa7880a139d229ad05ecda835cd7ce1b02bbbe3dfdeb0da6423853d05d83b518
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
        • MD5 SHA1 SHA512 SSDEEP

        linda5.exe

        • Path \Users\Admin\AppData\Local\Temp\1000016001\linda5.exe
        • Size 1.4MB
        • SHA256 39ac15b198579512c52541043b79fbd5b5ae05e31cc542be33d398298256dbd6
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path \Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 322KB
        • SHA256 eac89b852809795ba5be7c8fe1c4dfbfca83f3598d8170986addbbb62de1545b
        • MD5 SHA1 SHA512 SSDEEP

        gntuud.exe

        • Path \Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
        • Size 322KB
        • SHA256 eac89b852809795ba5be7c8fe1c4dfbfca83f3598d8170986addbbb62de1545b
        • MD5 SHA1 SHA512 SSDEEP

        V7SDj~.zZi

        • Path \Users\Admin\AppData\Local\Temp\V7SDj~.zZi
        • Size 2.3MB
        • SHA256 aa7880a139d229ad05ecda835cd7ce1b02bbbe3dfdeb0da6423853d05d83b518
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
        • Size 126KB
        • SHA256 104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
        • MD5 SHA1 SHA512 SSDEEP

        memory/1516-62-0x0000000000400000-0x000000000046D000-memory.dmp

        memory/1516-54-0x00000000005D8000-0x00000000005F7000-memory.dmp

        memory/1516-55-0x0000000075671000-0x0000000075673000-memory.dmp

        memory/1516-60-0x00000000005D8000-0x00000000005F7000-memory.dmp

        memory/1516-61-0x0000000000220000-0x000000000025E000-memory.dmp

        memory/1624-94-0x00000000026F0000-0x00000000027EF000-memory.dmp

        memory/1624-80-0x0000000000A20000-0x0000000000C6E000-memory.dmp

        memory/1624-81-0x00000000023D0000-0x00000000025E1000-memory.dmp

        memory/1624-82-0x00000000026F0000-0x00000000027EF000-memory.dmp

        memory/1624-91-0x00000000027F0000-0x00000000028BE000-memory.dmp

        memory/1624-90-0x00000000003D0000-0x00000000004B3000-memory.dmp

        memory/1924-70-0x0000000000658000-0x0000000000677000-memory.dmp

        memory/1924-66-0x0000000000260000-0x000000000029E000-memory.dmp

        memory/1924-69-0x0000000000400000-0x000000000046D000-memory.dmp

        memory/1924-65-0x0000000000658000-0x0000000000677000-memory.dmp

        memory/1924-63-0x0000000000658000-0x0000000000677000-memory.dmp