Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06/03/2025, 13:22

General

  • Target

    b1663d4497ddd27a59f090b72adcedddac51724a1c126f7d6469f8045d065e15.exe

  • Size

    452KB

  • MD5

    a9749ee52eefb0fd48a66527095354bb

  • SHA1

    78170bcc54e1f774528dea3118b50ffc46064fe0

  • SHA256

    b1663d4497ddd27a59f090b72adcedddac51724a1c126f7d6469f8045d065e15

  • SHA512

    9d21f0e1e376b89df717403a3939ed86ef61095bb9f0167ff15c01d3bbbee03d4dd01b3e2769ecd921e40e43bab3cbf0a6844ab6f296982227b0cb507b4b0e25

  • SSDEEP

    12288:Rib1rFTRH6serb/p93j6fGMWP1N72h8xp:IH659m+Mk1YW

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.nifty.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    427d5xz71123

Extracted

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.netzero.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    michelle

Extracted

Family

amadey

Version

5.21

Botnet

a4d2cd

C2

http://cobolrationumelawrtewarms.com

http://�������� jlgenfekjlfnvtgpegkwr.xyz

Attributes
  • install_dir

    a58456755d

  • install_file

    Gxtuum.exe

  • strings_key

    00fadbeacf092dfd58b48ef4ac68f826

  • url_paths

    /3ofn3jf3e2ljk/index.php

rc4.plain

Extracted

Family

systembc

C2

towerbingobongoboom.com

62.60.226.86

Signatures

  • Amadey

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

  • Amadey family
  • SystemBC

    SystemBC is a proxy and remote administration tool first seen in 2019.

  • Systembc family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Downloads MZ/PE file 1 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Executes dropped EXE 3 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
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b1663d4497ddd27a59f090b72adcedddac51724a1c126f7d6469f8045d065e15.exe
    "C:\Users\Admin\AppData\Local\Temp\b1663d4497ddd27a59f090b72adcedddac51724a1c126f7d6469f8045d065e15.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2504
    • C:\Users\Admin\AppData\Local\Temp\a58456755d\Gxtuum.exe
      "C:\Users\Admin\AppData\Local\Temp\a58456755d\Gxtuum.exe"
      2⤵
      • Downloads MZ/PE file
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2528
      • C:\Users\Admin\AppData\Roaming\10000790100\effectson.exe
        "C:\Users\Admin\AppData\Roaming\10000790100\effectson.exe"
        3⤵
        • 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
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2796
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {C59C652C-5F70-4C93-83AC-F203D04B0A64} S-1-5-21-3533259084-2542256011-65585152-1000:XPAJOTIY\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\ProgramData\vfopijm\cmqvdmk.exe
      C:\ProgramData\vfopijm\cmqvdmk.exe
      2⤵
      • 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
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1464

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\a58456755d\Gxtuum.exe

    Filesize

    452KB

    MD5

    a9749ee52eefb0fd48a66527095354bb

    SHA1

    78170bcc54e1f774528dea3118b50ffc46064fe0

    SHA256

    b1663d4497ddd27a59f090b72adcedddac51724a1c126f7d6469f8045d065e15

    SHA512

    9d21f0e1e376b89df717403a3939ed86ef61095bb9f0167ff15c01d3bbbee03d4dd01b3e2769ecd921e40e43bab3cbf0a6844ab6f296982227b0cb507b4b0e25

  • C:\Users\Admin\AppData\Roaming\10000790100\effectson.exe

    Filesize

    1.7MB

    MD5

    3b4723591e7a82dc45cdd60b2162eee2

    SHA1

    9618f544c79dbae11634fc14bd472b3cb5eb046d

    SHA256

    1582d61232dff45c014769e9be4fb06f839ee3e462189dbbf28ca0380a6fa410

    SHA512

    1559f42a1dbdf1f78f971415f3252a1127ebd2f3490a374a13670fc366b54f50c58bac8234d30a43b3345fbecdf49f65b69500675887c81fa45bc06311917380

  • C:\Windows\Tasks\Test Task17.job

    Filesize

    224B

    MD5

    99825d090478e290041a5ca381d9c6c0

    SHA1

    2b5a8b844ae3a88232c3a4955a4a91a062e1a2fd

    SHA256

    a0d9b92f4bb601c1be201f656b179cfcb16d84341b90d95b42eea1e071479108

    SHA512

    5911da75e7e25f7717e5f8d7349735a19d74d38de27a1f4520bc65513a7e0b5223f5c0fecb3c82ea1c2c774c352638e7150b0ab71b6e507ef8ecc17ed342633f

  • memory/1464-55-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/1464-48-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/1464-57-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/1464-56-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/1464-46-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/1464-45-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/1464-54-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/1464-53-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/1464-52-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/1464-51-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/1464-58-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/1464-42-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/2504-1-0x0000000000200000-0x0000000000201000-memory.dmp

    Filesize

    4KB

  • memory/2528-26-0x00000000047B0000-0x0000000004BF0000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-32-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-44-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-47-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-39-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-49-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-38-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-37-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-36-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-35-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-34-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-28-0x00000000775B0000-0x00000000775B2000-memory.dmp

    Filesize

    8KB

  • memory/2796-29-0x0000000000401000-0x0000000000403000-memory.dmp

    Filesize

    8KB

  • memory/2796-27-0x0000000000400000-0x0000000000840000-memory.dmp

    Filesize

    4.2MB