Analysis

  • max time kernel
    146s
  • max time network
    143s
  • 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 04:28

General

  • Target

    dc9c03ec6eb099a529867b8a2ab9e8f0e1923c6348aa0c924d817c28ca93c6b0.exe

  • Size

    1.8MB

  • MD5

    5e2102b090cd47c2a47b3cdaca4afcd9

  • SHA1

    6307bdaa47341c2a82d2cec0cf424dd4321b4cda

  • SHA256

    dc9c03ec6eb099a529867b8a2ab9e8f0e1923c6348aa0c924d817c28ca93c6b0

  • SHA512

    ad1d622de2a7da16000adc6b2527b1f9e96c892abf7493d49e11219d152ce276a25667114e48769b595b292097ef46a1c2ce410797b820041a25313db46c5202

  • SSDEEP

    49152:xazkagwv+RhjLVmnNiwJfU+6bbhlVEQVRx0pgLw:xJ1TAnM4s+ybvV1R8gk

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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc9c03ec6eb099a529867b8a2ab9e8f0e1923c6348aa0c924d817c28ca93c6b0.exe
    "C:\Users\Admin\AppData\Local\Temp\dc9c03ec6eb099a529867b8a2ab9e8f0e1923c6348aa0c924d817c28ca93c6b0.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:624
  • 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:1168
    • 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:2064
      • 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:4168
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:1932
          • 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:1724
      • 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:1868

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Unsecured Credentials

    3
    T1552

    Credentials In Files

    2
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Discovery

    Query Registry

    4
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    3
    T1082

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      1.8MB

      MD5

      5e2102b090cd47c2a47b3cdaca4afcd9

      SHA1

      6307bdaa47341c2a82d2cec0cf424dd4321b4cda

      SHA256

      dc9c03ec6eb099a529867b8a2ab9e8f0e1923c6348aa0c924d817c28ca93c6b0

      SHA512

      ad1d622de2a7da16000adc6b2527b1f9e96c892abf7493d49e11219d152ce276a25667114e48769b595b292097ef46a1c2ce410797b820041a25313db46c5202

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5agweyzh.tag.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/624-8-0x0000000004AC0000-0x0000000004AC1000-memory.dmp
      Filesize

      4KB

    • memory/624-5-0x0000000004AD0000-0x0000000004AD1000-memory.dmp
      Filesize

      4KB

    • memory/624-7-0x0000000004AB0000-0x0000000004AB1000-memory.dmp
      Filesize

      4KB

    • memory/624-6-0x0000000004B20000-0x0000000004B21000-memory.dmp
      Filesize

      4KB

    • memory/624-0-0x0000000000B50000-0x000000000100D000-memory.dmp
      Filesize

      4.7MB

    • memory/624-9-0x0000000004B10000-0x0000000004B11000-memory.dmp
      Filesize

      4KB

    • memory/624-10-0x0000000004B40000-0x0000000004B41000-memory.dmp
      Filesize

      4KB

    • memory/624-11-0x0000000004B30000-0x0000000004B31000-memory.dmp
      Filesize

      4KB

    • memory/624-16-0x0000000000B50000-0x000000000100D000-memory.dmp
      Filesize

      4.7MB

    • memory/624-3-0x0000000004AE0000-0x0000000004AE1000-memory.dmp
      Filesize

      4KB

    • memory/624-4-0x0000000004AF0000-0x0000000004AF1000-memory.dmp
      Filesize

      4KB

    • memory/624-2-0x0000000000B50000-0x000000000100D000-memory.dmp
      Filesize

      4.7MB

    • memory/624-1-0x0000000077044000-0x0000000077046000-memory.dmp
      Filesize

      8KB

    • memory/1168-27-0x00000000053D0000-0x00000000053D1000-memory.dmp
      Filesize

      4KB

    • memory/1168-56-0x00000000009A0000-0x0000000000E5D000-memory.dmp
      Filesize

      4.7MB

    • memory/1168-24-0x00000000053E0000-0x00000000053E1000-memory.dmp
      Filesize

      4KB

    • memory/1168-25-0x0000000005370000-0x0000000005371000-memory.dmp
      Filesize

      4KB

    • memory/1168-26-0x0000000005380000-0x0000000005381000-memory.dmp
      Filesize

      4KB

    • memory/1168-23-0x0000000005390000-0x0000000005391000-memory.dmp
      Filesize

      4KB

    • memory/1168-28-0x0000000005400000-0x0000000005401000-memory.dmp
      Filesize

      4KB

    • memory/1168-29-0x00000000053F0000-0x00000000053F1000-memory.dmp
      Filesize

      4KB

    • memory/1168-30-0x00000000009A0000-0x0000000000E5D000-memory.dmp
      Filesize

      4.7MB

    • memory/1168-22-0x00000000053B0000-0x00000000053B1000-memory.dmp
      Filesize

      4KB

    • memory/1168-20-0x00000000009A0000-0x0000000000E5D000-memory.dmp
      Filesize

      4.7MB

    • memory/1168-85-0x00000000009A0000-0x0000000000E5D000-memory.dmp
      Filesize

      4.7MB

    • memory/1168-84-0x00000000009A0000-0x0000000000E5D000-memory.dmp
      Filesize

      4.7MB

    • memory/1168-83-0x00000000009A0000-0x0000000000E5D000-memory.dmp
      Filesize

      4.7MB

    • memory/1168-82-0x00000000009A0000-0x0000000000E5D000-memory.dmp
      Filesize

      4.7MB

    • memory/1168-21-0x00000000053A0000-0x00000000053A1000-memory.dmp
      Filesize

      4KB

    • memory/1168-81-0x00000000009A0000-0x0000000000E5D000-memory.dmp
      Filesize

      4.7MB

    • memory/1168-80-0x00000000009A0000-0x0000000000E5D000-memory.dmp
      Filesize

      4.7MB

    • memory/1168-79-0x00000000009A0000-0x0000000000E5D000-memory.dmp
      Filesize

      4.7MB

    • memory/1168-19-0x00000000009A0000-0x0000000000E5D000-memory.dmp
      Filesize

      4.7MB

    • memory/1168-66-0x00000000009A0000-0x0000000000E5D000-memory.dmp
      Filesize

      4.7MB

    • memory/1168-67-0x00000000009A0000-0x0000000000E5D000-memory.dmp
      Filesize

      4.7MB

    • memory/1724-65-0x00007FFA63800000-0x00007FFA642C1000-memory.dmp
      Filesize

      10.8MB

    • memory/1724-59-0x000001EAF4960000-0x000001EAF496A000-memory.dmp
      Filesize

      40KB

    • memory/1724-58-0x000001EAF5D70000-0x000001EAF5D82000-memory.dmp
      Filesize

      72KB

    • memory/1724-57-0x000001EAF3000000-0x000001EAF3010000-memory.dmp
      Filesize

      64KB

    • memory/1724-55-0x000001EAF3000000-0x000001EAF3010000-memory.dmp
      Filesize

      64KB

    • memory/1724-54-0x000001EAF3000000-0x000001EAF3010000-memory.dmp
      Filesize

      64KB

    • memory/1724-53-0x00007FFA63800000-0x00007FFA642C1000-memory.dmp
      Filesize

      10.8MB

    • memory/1724-43-0x000001EAF4900000-0x000001EAF4922000-memory.dmp
      Filesize

      136KB