Analysis

  • max time kernel
    144s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    13-12-2024 17:06

General

  • Target

    d9865442479ec9a282ff312cd91481710f9b6e21330be30a68fa16bf36c0799f.exe

  • Size

    3.0MB

  • MD5

    ad7f121646aa374af133772519375710

  • SHA1

    4e85ad004aa170ed53b7818b78e0b12e042b18ea

  • SHA256

    d9865442479ec9a282ff312cd91481710f9b6e21330be30a68fa16bf36c0799f

  • SHA512

    fbe1dfd40bc2fa8c6617823d32023dba5625c5e7cb235f87b284f1166a30d64e75781e80b2586e4a6f7ada4cda9df3e17f1d61829705647c71232a2f902c81c3

  • SSDEEP

    49152:6UAh2jV6Tj3t5FH+2Qy0GsO7wXRzFxa73lx5:6UAh2jVej3jFH+2QyQO7ghO35

Malware Config

Extracted

Family

amadey

Version

4.42

Botnet

9c9aa5

C2

http://185.215.113.43

Attributes
  • install_dir

    abc3bc1985

  • install_file

    skotes.exe

  • strings_key

    8a35cf2ea38c2817dba29a4b5b25dcf0

  • url_paths

    /Zu7JuNko/index.php

rc4.plain

Signatures

  • Amadey

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

  • Amadey family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Renames multiple (8179) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • 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 2 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 4 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\d9865442479ec9a282ff312cd91481710f9b6e21330be30a68fa16bf36c0799f.exe
    "C:\Users\Admin\AppData\Local\Temp\d9865442479ec9a282ff312cd91481710f9b6e21330be30a68fa16bf36c0799f.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
      "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2736
      • C:\Users\Admin\AppData\Local\Temp\1014798001\4ZD5C3i.exe
        "C:\Users\Admin\AppData\Local\Temp\1014798001\4ZD5C3i.exe"
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1756
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2428

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Adobe\README.TXT

    Filesize

    533B

    MD5

    81d185495b4e6430a87dfd37789bb872

    SHA1

    b5da653f81a548c74205c7ae3d19f30af1a14271

    SHA256

    838d654b9cb0360d8b3bb767db8fc1954fc41ba0a56fc34688aad9b50f5ddb40

    SHA512

    1106c9c2245cbd44effb42e4e1365eb796d3b2390b011fb97205550bf183b097c489194aa001f97f949e9d1ed1c970eea6cbb0477da47511e5bc18e88bf2dfa5

  • C:\Users\Admin\AppData\Local\Temp\1014798001\4ZD5C3i.exe

    Filesize

    1.1MB

    MD5

    42a8588cc82773cd223c42f8fe4be91a

    SHA1

    e2ed3cda00140ecd445f5f742729d34f2c452c8c

    SHA256

    d4521c34f489f4a6065dea15634df9bb700c84741f476bde1084d9cdfb373a7b

    SHA512

    681e4b155ce1015723469bd819618b292844aa00f7dab447d9557e244792efcef5614f753283efe9dd76ea77b838af78a3e69008c380482a4412b1cea75c535d

  • \Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe

    Filesize

    3.0MB

    MD5

    ad7f121646aa374af133772519375710

    SHA1

    4e85ad004aa170ed53b7818b78e0b12e042b18ea

    SHA256

    d9865442479ec9a282ff312cd91481710f9b6e21330be30a68fa16bf36c0799f

    SHA512

    fbe1dfd40bc2fa8c6617823d32023dba5625c5e7cb235f87b284f1166a30d64e75781e80b2586e4a6f7ada4cda9df3e17f1d61829705647c71232a2f902c81c3

  • memory/2736-17292-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-17300-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-17301-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-47-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-17299-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-17298-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-49-0x0000000000341000-0x00000000003A9000-memory.dmp

    Filesize

    416KB

  • memory/2736-19-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-24-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-23-0x0000000000341000-0x00000000003A9000-memory.dmp

    Filesize

    416KB

  • memory/2736-26-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-27-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-17297-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-45-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-17302-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-17296-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-17295-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-48-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-17294-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-3555-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-10663-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2736-17293-0x0000000000340000-0x000000000064E000-memory.dmp

    Filesize

    3.1MB

  • memory/2916-0-0x0000000000DD0000-0x00000000010DE000-memory.dmp

    Filesize

    3.1MB

  • memory/2916-1-0x0000000077A70000-0x0000000077A72000-memory.dmp

    Filesize

    8KB

  • memory/2916-20-0x0000000006B00000-0x0000000006E0E000-memory.dmp

    Filesize

    3.1MB

  • memory/2916-5-0x0000000000DD0000-0x00000000010DE000-memory.dmp

    Filesize

    3.1MB

  • memory/2916-2-0x0000000000DD1000-0x0000000000E39000-memory.dmp

    Filesize

    416KB

  • memory/2916-17-0x0000000000DD0000-0x00000000010DE000-memory.dmp

    Filesize

    3.1MB

  • memory/2916-21-0x0000000006B00000-0x0000000006E0E000-memory.dmp

    Filesize

    3.1MB

  • memory/2916-22-0x0000000000DD1000-0x0000000000E39000-memory.dmp

    Filesize

    416KB

  • memory/2916-3-0x0000000000DD0000-0x00000000010DE000-memory.dmp

    Filesize

    3.1MB

  • memory/2916-46-0x0000000006B00000-0x0000000006E0E000-memory.dmp

    Filesize

    3.1MB