Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-07-2024 00:52

General

  • Target

    c1cf373ff94ea6a918223c83b0900e88ed4b6204c96694d5a7b846c6d8867609.exe

  • Size

    1.8MB

  • MD5

    1ea6bc4bcdd2a101c5ef38d2718cb384

  • SHA1

    f07c30d10c429f6d0dba8cd1b65bbad510ade2fa

  • SHA256

    c1cf373ff94ea6a918223c83b0900e88ed4b6204c96694d5a7b846c6d8867609

  • SHA512

    5ea0228a67306900cb33ab32ff6d16353c681159cc79c4273cd8a81c26039bf8ee4982c50a48529230f678feffaa260d8775f397b515bab3e52f893420b5383c

  • SSDEEP

    49152:bHWSXJdVWaGZxYT3sys9poDeh8e5ENAUDl/2:b2SX34aGUTEOa4+

Malware Config

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

Extracted

Family

stealc

Botnet

jony

C2

http://85.28.47.4

Attributes
  • url_path

    /920475a59bac849d.php

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.

  • Checks computer location settings 2 TTPs 4 IoCs

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

  • 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 7 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 SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c1cf373ff94ea6a918223c83b0900e88ed4b6204c96694d5a7b846c6d8867609.exe
    "C:\Users\Admin\AppData\Local\Temp\c1cf373ff94ea6a918223c83b0900e88ed4b6204c96694d5a7b846c6d8867609.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1536
    • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
      "C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"
      2⤵
      • 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:5140
      • C:\Users\Admin\AppData\Local\Temp\1000006001\5c8e7deff6.exe
        "C:\Users\Admin\AppData\Local\Temp\1000006001\5c8e7deff6.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5488
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\CBFBKFIDHI.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:5540
          • C:\Users\Admin\AppData\Local\Temp\CBFBKFIDHI.exe
            "C:\Users\Admin\AppData\Local\Temp\CBFBKFIDHI.exe"
            5⤵
            • 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:5548
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HIDHDAAEHI.exe"
          4⤵
          • Checks computer location settings
          • Suspicious use of SetWindowsHookEx
          PID:5044
  • 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:1092
  • 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:744

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

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\1000006001\5c8e7deff6.exe
    Filesize

    2.4MB

    MD5

    d961b76024edf043b709ae146a38a4c7

    SHA1

    e520a1872769d35e045fba592f7987eb97e6f175

    SHA256

    41312792dcc936995c9e6c4b645482195a80d021ec58837971068afb6416b44d

    SHA512

    3b489b80d2f66920872ceec58907ac05b3283bf95bc19a4268c8ff86b0a22ae085d602a8573c09c3cf19d640388d27b0198d72e804c8c727333352d42f17beec

  • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
    Filesize

    1.8MB

    MD5

    1ea6bc4bcdd2a101c5ef38d2718cb384

    SHA1

    f07c30d10c429f6d0dba8cd1b65bbad510ade2fa

    SHA256

    c1cf373ff94ea6a918223c83b0900e88ed4b6204c96694d5a7b846c6d8867609

    SHA512

    5ea0228a67306900cb33ab32ff6d16353c681159cc79c4273cd8a81c26039bf8ee4982c50a48529230f678feffaa260d8775f397b515bab3e52f893420b5383c

  • memory/744-129-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/744-130-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/1092-120-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/1092-121-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/1536-17-0x0000000000CA0000-0x000000000116A000-memory.dmp
    Filesize

    4.8MB

  • memory/1536-0-0x0000000000CA0000-0x000000000116A000-memory.dmp
    Filesize

    4.8MB

  • memory/1536-5-0x0000000000CA0000-0x000000000116A000-memory.dmp
    Filesize

    4.8MB

  • memory/1536-3-0x0000000000CA0000-0x000000000116A000-memory.dmp
    Filesize

    4.8MB

  • memory/1536-2-0x0000000000CA1000-0x0000000000CCF000-memory.dmp
    Filesize

    184KB

  • memory/1536-1-0x0000000077C74000-0x0000000077C76000-memory.dmp
    Filesize

    8KB

  • memory/5140-20-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-21-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-104-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-133-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-132-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-131-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-113-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-114-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-115-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-116-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-117-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-118-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-18-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-19-0x0000000000CC1000-0x0000000000CEF000-memory.dmp
    Filesize

    184KB

  • memory/5140-122-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-123-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-124-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-125-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-126-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5140-127-0x0000000000CC0000-0x000000000118A000-memory.dmp
    Filesize

    4.8MB

  • memory/5488-38-0x0000000061E00000-0x0000000061EF3000-memory.dmp
    Filesize

    972KB

  • memory/5488-37-0x0000000000F60000-0x0000000001B52000-memory.dmp
    Filesize

    11.9MB

  • memory/5488-107-0x0000000000F60000-0x0000000001B52000-memory.dmp
    Filesize

    11.9MB

  • memory/5548-112-0x0000000000060000-0x000000000052A000-memory.dmp
    Filesize

    4.8MB

  • memory/5548-111-0x0000000000060000-0x000000000052A000-memory.dmp
    Filesize

    4.8MB