Analysis

  • max time kernel
    140s
  • max time network
    130s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22-03-2024 09:32

General

  • Target

    acaf99af97488b025e4d555958491f3061c3ba06d708354499652da553e57872.exe

  • Size

    1.8MB

  • MD5

    246282ec7bd39eb302e867ad6525549c

  • SHA1

    79b51d2097dbd696a51678675e8b7882cf4f8cb9

  • SHA256

    acaf99af97488b025e4d555958491f3061c3ba06d708354499652da553e57872

  • SHA512

    ca94d37b642c8979ebdf3d33d17f7872c083e3ce6696e2ec1b6bca50f4655dd4a1d1ae4c13252c8babc848bd22a32cf0d32be14c23e99f4a1c0f428431b7fc0f

  • SSDEEP

    49152:GNhqszjALfGIV7ZmHr2D2Uhsoq3Y8IhQ6+u/aZ:GNhqIjEfGIVo82UhsoqTl6R/

Score
10/10

Malware Config

Extracted

Family

amadey

Version

4.17

C2

http://185.215.113.32

Attributes
  • install_dir

    00c07260dc

  • install_file

    explorgu.exe

  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/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 1 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 1 IoCs
  • 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 4 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\acaf99af97488b025e4d555958491f3061c3ba06d708354499652da553e57872.exe
    "C:\Users\Admin\AppData\Local\Temp\acaf99af97488b025e4d555958491f3061c3ba06d708354499652da553e57872.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:4020
  • C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
    C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.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:4524
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3372
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
        3⤵
          PID:900
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main
        2⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        PID:1800

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe

      Filesize

      1.8MB

      MD5

      246282ec7bd39eb302e867ad6525549c

      SHA1

      79b51d2097dbd696a51678675e8b7882cf4f8cb9

      SHA256

      acaf99af97488b025e4d555958491f3061c3ba06d708354499652da553e57872

      SHA512

      ca94d37b642c8979ebdf3d33d17f7872c083e3ce6696e2ec1b6bca50f4655dd4a1d1ae4c13252c8babc848bd22a32cf0d32be14c23e99f4a1c0f428431b7fc0f

    • C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll

      Filesize

      109KB

      MD5

      2afdbe3b99a4736083066a13e4b5d11a

      SHA1

      4d4856cf02b3123ac16e63d4a448cdbcb1633546

      SHA256

      8d31b39170909595b518b1a03e9ec950540fabd545ed14817cac5c84b91599ee

      SHA512

      d89b3c46854153e60e3fa825b394344eee33936d7dbf186af9d95c9adae54428609e3bf21a18d38fce3d96f3e0b8e4e0ed25cb5004fbe288de3aef3a85b1d93f

    • C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll

      Filesize

      368KB

      MD5

      c45356126b8245243ae1bf358b54d1bb

      SHA1

      b39e6704e91823fbe995e90f2d546500540de5f4

      SHA256

      4af253b0b981b9f70a52a95c2ad116e43a4fd36942a27c4212f2644b0bccf3e9

      SHA512

      c94086c589e0594e3ddbb5581344cff7785cf39f4120a0a199d0859dc64b94b50511aede3b130927e7ba54a85c4c62a1c6fdabb12f257242d781fef1f6e24b7b

    • memory/4020-6-0x0000000005480000-0x0000000005481000-memory.dmp

      Filesize

      4KB

    • memory/4020-3-0x0000000005450000-0x0000000005451000-memory.dmp

      Filesize

      4KB

    • memory/4020-5-0x0000000005440000-0x0000000005441000-memory.dmp

      Filesize

      4KB

    • memory/4020-0-0x00000000008E0000-0x0000000000DA7000-memory.dmp

      Filesize

      4.8MB

    • memory/4020-8-0x0000000005430000-0x0000000005431000-memory.dmp

      Filesize

      4KB

    • memory/4020-7-0x0000000005420000-0x0000000005421000-memory.dmp

      Filesize

      4KB

    • memory/4020-9-0x00000000054B0000-0x00000000054B1000-memory.dmp

      Filesize

      4KB

    • memory/4020-10-0x00000000054A0000-0x00000000054A1000-memory.dmp

      Filesize

      4KB

    • memory/4020-15-0x00000000008E0000-0x0000000000DA7000-memory.dmp

      Filesize

      4.8MB

    • memory/4020-4-0x0000000005460000-0x0000000005461000-memory.dmp

      Filesize

      4KB

    • memory/4020-2-0x00000000008E0000-0x0000000000DA7000-memory.dmp

      Filesize

      4.8MB

    • memory/4020-1-0x00000000773B6000-0x00000000773B8000-memory.dmp

      Filesize

      8KB

    • memory/4524-23-0x00000000056E0000-0x00000000056E1000-memory.dmp

      Filesize

      4KB

    • memory/4524-31-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB

    • memory/4524-22-0x0000000005740000-0x0000000005741000-memory.dmp

      Filesize

      4KB

    • memory/4524-20-0x0000000005710000-0x0000000005711000-memory.dmp

      Filesize

      4KB

    • memory/4524-24-0x00000000056F0000-0x00000000056F1000-memory.dmp

      Filesize

      4KB

    • memory/4524-25-0x0000000005720000-0x0000000005721000-memory.dmp

      Filesize

      4KB

    • memory/4524-26-0x0000000005760000-0x0000000005761000-memory.dmp

      Filesize

      4KB

    • memory/4524-27-0x0000000005750000-0x0000000005751000-memory.dmp

      Filesize

      4KB

    • memory/4524-28-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB

    • memory/4524-29-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB

    • memory/4524-30-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB

    • memory/4524-21-0x0000000005700000-0x0000000005701000-memory.dmp

      Filesize

      4KB

    • memory/4524-32-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB

    • memory/4524-33-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB

    • memory/4524-34-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB

    • memory/4524-35-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB

    • memory/4524-19-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB

    • memory/4524-46-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB

    • memory/4524-47-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB

    • memory/4524-17-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB

    • memory/4524-59-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB

    • memory/4524-60-0x0000000000C70000-0x0000000001137000-memory.dmp

      Filesize

      4.8MB