Analysis

  • max time kernel
    142s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/03/2024, 09:30

General

  • Target

    463787efd1e5d6c50e3120af29db8f8ecc70a6c346d18e20220f4b104f18bd4b.exe

  • Size

    1.8MB

  • MD5

    c960d2677f3dce3d51771422c54116a3

  • SHA1

    89c7afe32a00ddff7744874d552672dbbd8882ab

  • SHA256

    463787efd1e5d6c50e3120af29db8f8ecc70a6c346d18e20220f4b104f18bd4b

  • SHA512

    42a093a7ac68b614b403f73ebe8dfff8ac7a103df64d633452d9951bb5a45108948a2f944f311662039ae85875ef844ed34877fff2d64c37da1caeb82ed91b04

  • SSDEEP

    49152:9QOS/RSubNxOWoBwlKyh17aLlds9dTP2Oj:yJQK3OWRlKM8s9dTvj

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 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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\463787efd1e5d6c50e3120af29db8f8ecc70a6c346d18e20220f4b104f18bd4b.exe
    "C:\Users\Admin\AppData\Local\Temp\463787efd1e5d6c50e3120af29db8f8ecc70a6c346d18e20220f4b104f18bd4b.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:2428
  • 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
    • Checks computer location settings
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2012
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1068
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3992
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:3740
          • 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\497073144238_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3148
      • 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:1472

    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

            c960d2677f3dce3d51771422c54116a3

            SHA1

            89c7afe32a00ddff7744874d552672dbbd8882ab

            SHA256

            463787efd1e5d6c50e3120af29db8f8ecc70a6c346d18e20220f4b104f18bd4b

            SHA512

            42a093a7ac68b614b403f73ebe8dfff8ac7a103df64d633452d9951bb5a45108948a2f944f311662039ae85875ef844ed34877fff2d64c37da1caeb82ed91b04

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_td0cjrdr.agu.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

          • 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

            1.2MB

            MD5

            92fbdfccf6a63acef2743631d16652a7

            SHA1

            971968b1378dd89d59d7f84bf92f16fc68664506

            SHA256

            b4588feacc183cd5a089f9bb950827b75df04bd5a6e67c95ff258e4a34aa0d72

            SHA512

            b8ea216d4a59d8858fd4128abb555f8dcf3acca9138e663b488f09dc5200db6dc11ecc235a355e801145bbbb44d7beac6147949d75d78b32fe9cfd2fa200d117

          • memory/2012-79-0x0000000000660000-0x0000000000B22000-memory.dmp

            Filesize

            4.8MB

          • memory/2012-20-0x0000000000660000-0x0000000000B22000-memory.dmp

            Filesize

            4.8MB

          • memory/2012-81-0x0000000000660000-0x0000000000B22000-memory.dmp

            Filesize

            4.8MB

          • memory/2012-78-0x0000000000660000-0x0000000000B22000-memory.dmp

            Filesize

            4.8MB

          • memory/2012-77-0x0000000000660000-0x0000000000B22000-memory.dmp

            Filesize

            4.8MB

          • memory/2012-82-0x0000000000660000-0x0000000000B22000-memory.dmp

            Filesize

            4.8MB

          • memory/2012-65-0x0000000000660000-0x0000000000B22000-memory.dmp

            Filesize

            4.8MB

          • memory/2012-55-0x0000000000660000-0x0000000000B22000-memory.dmp

            Filesize

            4.8MB

          • memory/2012-83-0x0000000000660000-0x0000000000B22000-memory.dmp

            Filesize

            4.8MB

          • memory/2012-84-0x0000000000660000-0x0000000000B22000-memory.dmp

            Filesize

            4.8MB

          • memory/2012-19-0x0000000000660000-0x0000000000B22000-memory.dmp

            Filesize

            4.8MB

          • memory/2012-80-0x0000000000660000-0x0000000000B22000-memory.dmp

            Filesize

            4.8MB

          • memory/2012-22-0x0000000004C10000-0x0000000004C11000-memory.dmp

            Filesize

            4KB

          • memory/2012-25-0x0000000004C00000-0x0000000004C01000-memory.dmp

            Filesize

            4KB

          • memory/2012-24-0x0000000004BE0000-0x0000000004BE1000-memory.dmp

            Filesize

            4KB

          • memory/2012-23-0x0000000004C50000-0x0000000004C51000-memory.dmp

            Filesize

            4KB

          • memory/2012-26-0x0000000004BF0000-0x0000000004BF1000-memory.dmp

            Filesize

            4KB

          • memory/2012-21-0x0000000004C20000-0x0000000004C21000-memory.dmp

            Filesize

            4KB

          • memory/2012-27-0x0000000004C40000-0x0000000004C41000-memory.dmp

            Filesize

            4KB

          • memory/2012-28-0x0000000004C70000-0x0000000004C71000-memory.dmp

            Filesize

            4KB

          • memory/2012-29-0x0000000004C60000-0x0000000004C61000-memory.dmp

            Filesize

            4KB

          • memory/2012-30-0x0000000000660000-0x0000000000B22000-memory.dmp

            Filesize

            4.8MB

          • memory/2428-11-0x0000000005480000-0x0000000005481000-memory.dmp

            Filesize

            4KB

          • memory/2428-7-0x0000000005400000-0x0000000005401000-memory.dmp

            Filesize

            4KB

          • memory/2428-1-0x0000000077B14000-0x0000000077B16000-memory.dmp

            Filesize

            8KB

          • memory/2428-2-0x0000000000170000-0x0000000000632000-memory.dmp

            Filesize

            4.8MB

          • memory/2428-4-0x0000000005440000-0x0000000005441000-memory.dmp

            Filesize

            4KB

          • memory/2428-0-0x0000000000170000-0x0000000000632000-memory.dmp

            Filesize

            4.8MB

          • memory/2428-3-0x0000000005430000-0x0000000005431000-memory.dmp

            Filesize

            4KB

          • memory/2428-6-0x0000000005470000-0x0000000005471000-memory.dmp

            Filesize

            4KB

          • memory/2428-5-0x0000000005420000-0x0000000005421000-memory.dmp

            Filesize

            4KB

          • memory/2428-16-0x0000000000170000-0x0000000000632000-memory.dmp

            Filesize

            4.8MB

          • memory/2428-10-0x0000000005490000-0x0000000005491000-memory.dmp

            Filesize

            4KB

          • memory/2428-9-0x0000000005460000-0x0000000005461000-memory.dmp

            Filesize

            4KB

          • memory/2428-8-0x0000000005410000-0x0000000005411000-memory.dmp

            Filesize

            4KB

          • memory/3148-64-0x00007FFFAA5D0000-0x00007FFFAB091000-memory.dmp

            Filesize

            10.8MB

          • memory/3148-58-0x0000016ED8770000-0x0000016ED877A000-memory.dmp

            Filesize

            40KB

          • memory/3148-57-0x0000016EF2F00000-0x0000016EF2F12000-memory.dmp

            Filesize

            72KB

          • memory/3148-56-0x0000016ED8780000-0x0000016ED8790000-memory.dmp

            Filesize

            64KB

          • memory/3148-54-0x0000016ED8780000-0x0000016ED8790000-memory.dmp

            Filesize

            64KB

          • memory/3148-53-0x00007FFFAA5D0000-0x00007FFFAB091000-memory.dmp

            Filesize

            10.8MB

          • memory/3148-52-0x0000016EF2B30000-0x0000016EF2B52000-memory.dmp

            Filesize

            136KB