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Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240704-en
  • resource tags

    arch:x64arch:x86image:win11-20240704-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08/07/2024, 10:16

General

  • Target

    3781240686f18f44cfb8397dfe462c164a00f0c4b08177b468129bc8c41a1f22.exe

  • Size

    2.4MB

  • MD5

    372c9047c2f9bc0241a64b506054fa0a

  • SHA1

    a3dca1dc8b61381c1fca9f6951352aa5f6a2403f

  • SHA256

    3781240686f18f44cfb8397dfe462c164a00f0c4b08177b468129bc8c41a1f22

  • SHA512

    1ddc4dcc4e77ec0c147afe1606f50a989ae8cc8ecae67cc5fb122cf985b2aec84c4968fc2075ffeb0f666d1ca0669acef855e8e647e681a31dd1d5d70a0f13fa

  • SSDEEP

    49152:vUlvV1PH2uIE3Hnj3d6Swz5+8gPNwvHTnUzHuC/yTkRT2VxLvgs:cp3P2xET3d6SwFUwvzCzTELYs

Malware Config

Extracted

Family

stealc

Botnet

Nice

C2

http://85.28.47.30

Attributes
  • url_path

    /920475a59bac849d.php

Extracted

Family

amadey

Version

4.30

Botnet

4dd39d

C2

http://77.91.77.82

Attributes
  • install_dir

    ad40971b6b

  • install_file

    explorti.exe

  • strings_key

    a434973ad22def7137dbb5e059b7081e

  • url_paths

    /Hun4Ko/index.php

rc4.plain

Signatures

  • Amadey

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

  • Stealc

    Stealc is an infostealer written in C++.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 10 IoCs

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

  • Executes dropped EXE 5 IoCs
  • Identifies Wine through registry keys 2 TTPs 5 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3781240686f18f44cfb8397dfe462c164a00f0c4b08177b468129bc8c41a1f22.exe
    "C:\Users\Admin\AppData\Local\Temp\3781240686f18f44cfb8397dfe462c164a00f0c4b08177b468129bc8c41a1f22.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3776
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KJDGDBFBGI.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2052
      • C:\Users\Admin\AppData\Local\Temp\KJDGDBFBGI.exe
        "C:\Users\Admin\AppData\Local\Temp\KJDGDBFBGI.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
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:2436
        • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
          "C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"
          4⤵
          • 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
          PID:1152
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\FCBAECGIEB.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2828
  • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
    C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.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
    PID:3768
  • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
    C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.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
    PID:1504
  • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
    C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.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
    PID:4216

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • C:\Users\Admin\AppData\Local\Temp\KJDGDBFBGI.exe

    Filesize

    1.8MB

    MD5

    61ce43973f7cce2b561705e2c075d840

    SHA1

    3e4cc6785d2c26902699c3c800d40375b6ef085b

    SHA256

    c59694f951c18c5b6af416b45e4c94049882904eced113e2415988fa8e241f11

    SHA512

    bf68c402f73551fe3a3c476d392572b1fba61f52a1e3e68c83c0ba675cdbc77f127078481c7829695c1209afafb8eb9b2de909e252300a2288f96d310b25c9fe

  • memory/1152-103-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1152-105-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1152-121-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1152-116-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1152-115-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1152-114-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1152-113-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1152-97-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1152-112-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1152-111-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1152-102-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1152-107-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1152-104-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1152-106-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1504-109-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/1504-110-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/2436-96-0x0000000000020000-0x00000000004DB000-memory.dmp

    Filesize

    4.7MB

  • memory/2436-83-0x0000000000020000-0x00000000004DB000-memory.dmp

    Filesize

    4.7MB

  • memory/3768-101-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/3768-99-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/3776-0-0x00000000009D0000-0x00000000015CD000-memory.dmp

    Filesize

    12.0MB

  • memory/3776-2-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3776-1-0x000000007EF30000-0x000000007F301000-memory.dmp

    Filesize

    3.8MB

  • memory/3776-79-0x000000007EF30000-0x000000007F301000-memory.dmp

    Filesize

    3.8MB

  • memory/3776-78-0x00000000009D0000-0x00000000015CD000-memory.dmp

    Filesize

    12.0MB

  • memory/4216-118-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB

  • memory/4216-120-0x0000000000220000-0x00000000006DB000-memory.dmp

    Filesize

    4.7MB