Analysis

  • max time kernel
    296s
  • max time network
    300s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    29/04/2024, 05:17

General

  • Target

    b3948404b310152184d179dd6900220956e90bdaa72a3594be14ab7922fa2a97.exe

  • Size

    1.8MB

  • MD5

    2a7e3c27faad932683e24bcfe6cc0fd3

  • SHA1

    85bb29b42155b72527e3c43a03ef2048658e549c

  • SHA256

    b3948404b310152184d179dd6900220956e90bdaa72a3594be14ab7922fa2a97

  • SHA512

    5970dfcbddadb0f365bf841c5e870a8a27cc82f5f59ee6785bb41549eff174bf9a1fbe0290561f872ea077d7c96919ab7a3c7cbe1884d2962873173d2ebc57b1

  • SSDEEP

    49152:cf7E38DjrubmrC57Q+Xsg4+bYKneBq6eOXSL9ePl:cDE3Gruq+57t8g4MYOsqhOa9Yl

Malware Config

Extracted

Family

amadey

Version

4.17

C2

http://193.233.132.167

Attributes
  • install_dir

    4d0ab15804

  • install_file

    chrosha.exe

  • strings_key

    1a9519d7b465e1f4880fa09a6162d768

  • url_paths

    /enigma/index.php

rc4.plain

Signatures

  • Amadey

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

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 3 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads local data of messenger clients 2 TTPs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b3948404b310152184d179dd6900220956e90bdaa72a3594be14ab7922fa2a97.exe
    "C:\Users\Admin\AppData\Local\Temp\b3948404b310152184d179dd6900220956e90bdaa72a3594be14ab7922fa2a97.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:4780
  • C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exe
    C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4732
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4448
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2096
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:3240
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\687926120302_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1920
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll, Main
        2⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        PID:2276

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exe

      Filesize

      1.8MB

      MD5

      2a7e3c27faad932683e24bcfe6cc0fd3

      SHA1

      85bb29b42155b72527e3c43a03ef2048658e549c

      SHA256

      b3948404b310152184d179dd6900220956e90bdaa72a3594be14ab7922fa2a97

      SHA512

      5970dfcbddadb0f365bf841c5e870a8a27cc82f5f59ee6785bb41549eff174bf9a1fbe0290561f872ea077d7c96919ab7a3c7cbe1884d2962873173d2ebc57b1

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0dn2g3hg.vef.ps1

      Filesize

      1B

      MD5

      c4ca4238a0b923820dcc509a6f75849b

      SHA1

      356a192b7913b04c54574d18c28d46e6395428ab

      SHA256

      6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

      SHA512

      4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

    • C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll

      Filesize

      109KB

      MD5

      154c3f1334dd435f562672f2664fea6b

      SHA1

      51dd25e2ba98b8546de163b8f26e2972a90c2c79

      SHA256

      5f431129f97f3d56929f1e5584819e091bd6c854d7e18503074737fc6d79e33f

      SHA512

      1bca69bbcdb7ecd418769e9d4befc458f9f8e3cee81feb7316bb61e189e2904f4431e4cc7d291e179a5dec441b959d428d8e433f579036f763bbad6460222841

    • C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll

      Filesize

      1.2MB

      MD5

      f35b671fda2603ec30ace10946f11a90

      SHA1

      059ad6b06559d4db581b1879e709f32f80850872

      SHA256

      83e3df5bec15d5333935bea8b719a6d677e2fb3dc1cf9e18e7b82fd0438285c7

      SHA512

      b5fa27d08c64727cef7fdda5e68054a4359cd697df50d70d1d90da583195959a139066a6214531bbc5f20cd4f9bc1ca3e4244396547381291a6a1d2df9cf8705

    • memory/1920-97-0x0000023A7ADD0000-0x0000023A7ADDA000-memory.dmp

      Filesize

      40KB

    • memory/1920-84-0x0000023A7AF60000-0x0000023A7AF72000-memory.dmp

      Filesize

      72KB

    • memory/1920-50-0x0000023A7ADE0000-0x0000023A7AE56000-memory.dmp

      Filesize

      472KB

    • memory/1920-47-0x0000023A7AD30000-0x0000023A7AD52000-memory.dmp

      Filesize

      136KB

    • memory/4732-20-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-119-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-143-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-142-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-141-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-19-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-140-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-27-0x00000000054B0000-0x00000000054B1000-memory.dmp

      Filesize

      4KB

    • memory/4732-26-0x0000000005470000-0x0000000005471000-memory.dmp

      Filesize

      4KB

    • memory/4732-25-0x0000000005460000-0x0000000005461000-memory.dmp

      Filesize

      4KB

    • memory/4732-24-0x00000000054C0000-0x00000000054C1000-memory.dmp

      Filesize

      4KB

    • memory/4732-23-0x0000000005480000-0x0000000005481000-memory.dmp

      Filesize

      4KB

    • memory/4732-22-0x00000000054A0000-0x00000000054A1000-memory.dmp

      Filesize

      4KB

    • memory/4732-21-0x0000000005490000-0x0000000005491000-memory.dmp

      Filesize

      4KB

    • memory/4732-29-0x00000000054D0000-0x00000000054D1000-memory.dmp

      Filesize

      4KB

    • memory/4732-28-0x00000000054E0000-0x00000000054E1000-memory.dmp

      Filesize

      4KB

    • memory/4732-30-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-139-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-138-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-137-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-136-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-135-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-134-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-106-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-107-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-133-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-132-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-120-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-121-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-122-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-123-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-124-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-125-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-126-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-127-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-128-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-129-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-130-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4732-131-0x0000000000950000-0x0000000000E12000-memory.dmp

      Filesize

      4.8MB

    • memory/4780-11-0x00000000054A0000-0x00000000054A1000-memory.dmp

      Filesize

      4KB

    • memory/4780-1-0x0000000077004000-0x0000000077005000-memory.dmp

      Filesize

      4KB

    • memory/4780-2-0x00000000010F0000-0x00000000015B2000-memory.dmp

      Filesize

      4.8MB

    • memory/4780-8-0x0000000005430000-0x0000000005431000-memory.dmp

      Filesize

      4KB

    • memory/4780-7-0x0000000005440000-0x0000000005441000-memory.dmp

      Filesize

      4KB

    • memory/4780-6-0x0000000005420000-0x0000000005421000-memory.dmp

      Filesize

      4KB

    • memory/4780-5-0x0000000005480000-0x0000000005481000-memory.dmp

      Filesize

      4KB

    • memory/4780-4-0x0000000005450000-0x0000000005451000-memory.dmp

      Filesize

      4KB

    • memory/4780-0-0x00000000010F0000-0x00000000015B2000-memory.dmp

      Filesize

      4.8MB

    • memory/4780-3-0x0000000005460000-0x0000000005461000-memory.dmp

      Filesize

      4KB

    • memory/4780-16-0x00000000010F0000-0x00000000015B2000-memory.dmp

      Filesize

      4.8MB

    • memory/4780-10-0x00000000054B0000-0x00000000054B1000-memory.dmp

      Filesize

      4KB