Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-03-2024 05:50

General

  • Target

    a3170754eb777ef38d5dd3317ccd766ea1bca03a6e8d445ea26a75c5d68b747b.exe

  • Size

    1.8MB

  • MD5

    84fb0656d2462e97ad88d17212bdf2bc

  • SHA1

    3f7caf3955ff8ebe0fe6c361a61b19971c693fd2

  • SHA256

    a3170754eb777ef38d5dd3317ccd766ea1bca03a6e8d445ea26a75c5d68b747b

  • SHA512

    3f798c2155a36a84fbb24331704947eec5f7c87e5a52967ef6462486aa41caab24c88889f62e1cdec2ed798c79936593ae7a92c14dce41d03582c885393296ff

  • SSDEEP

    49152:TCN2iuu1xZLOUvScMpOFApbD4cpr6C5wueUiGl:vSc3sqp9GuLPl

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

Extracted

Family

lumma

C2

https://affordcharmcropwo.shop/api

Signatures

  • Amadey

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

  • Lumma Stealer

    An infostealer written in C++ first seen in August 2022.

  • 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 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 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 local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

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

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3170754eb777ef38d5dd3317ccd766ea1bca03a6e8d445ea26a75c5d68b747b.exe
    "C:\Users\Admin\AppData\Local\Temp\a3170754eb777ef38d5dd3317ccd766ea1bca03a6e8d445ea26a75c5d68b747b.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:3496
  • 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:3652
    • C:\Users\Admin\AppData\Local\Temp\1001073001\swiiiii.exe
      "C:\Users\Admin\AppData\Local\Temp\1001073001\swiiiii.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2308
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:4212
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2308 -s 776
        3⤵
        • Program crash
        PID:4880
    • 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:2872
      • 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:2796
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:3792
          • 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\270530367132_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:5044
      • 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:1572
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 2308 -ip 2308
      1⤵
        PID:2008

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.8MB

        MD5

        84fb0656d2462e97ad88d17212bdf2bc

        SHA1

        3f7caf3955ff8ebe0fe6c361a61b19971c693fd2

        SHA256

        a3170754eb777ef38d5dd3317ccd766ea1bca03a6e8d445ea26a75c5d68b747b

        SHA512

        3f798c2155a36a84fbb24331704947eec5f7c87e5a52967ef6462486aa41caab24c88889f62e1cdec2ed798c79936593ae7a92c14dce41d03582c885393296ff

      • C:\Users\Admin\AppData\Local\Temp\1001073001\swiiiii.exe

        Filesize

        321KB

        MD5

        1c7d0f34bb1d85b5d2c01367cc8f62ef

        SHA1

        33aedadb5361f1646cffd68791d72ba5f1424114

        SHA256

        e9e09c5e5d03d21fca820bd9b0a0ea7b86ab9e85cdc9996f8f1dc822b0cc801c

        SHA512

        53bf85d2b004f69bbbf7b6dc78e5f021aba71b6f814101c55d3bf76e6d058a973bc58270b6b621b2100c6e02d382f568d1e96024464e8ea81e6db8ccd948679d

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uljsipt4.ira.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/2308-47-0x0000000000BC0000-0x0000000000C12000-memory.dmp

        Filesize

        328KB

      • memory/2308-48-0x0000000072C10000-0x00000000733C0000-memory.dmp

        Filesize

        7.7MB

      • memory/2308-55-0x0000000003040000-0x0000000005040000-memory.dmp

        Filesize

        32.0MB

      • memory/2308-62-0x0000000072C10000-0x00000000733C0000-memory.dmp

        Filesize

        7.7MB

      • memory/3496-7-0x0000000005430000-0x0000000005431000-memory.dmp

        Filesize

        4KB

      • memory/3496-14-0x0000000000C10000-0x00000000010D1000-memory.dmp

        Filesize

        4.8MB

      • memory/3496-9-0x00000000054A0000-0x00000000054A1000-memory.dmp

        Filesize

        4KB

      • memory/3496-4-0x0000000005440000-0x0000000005441000-memory.dmp

        Filesize

        4KB

      • memory/3496-5-0x0000000005480000-0x0000000005481000-memory.dmp

        Filesize

        4KB

      • memory/3496-6-0x0000000005420000-0x0000000005421000-memory.dmp

        Filesize

        4KB

      • memory/3496-8-0x0000000005460000-0x0000000005461000-memory.dmp

        Filesize

        4KB

      • memory/3496-3-0x0000000005450000-0x0000000005451000-memory.dmp

        Filesize

        4KB

      • memory/3496-0-0x0000000000C10000-0x00000000010D1000-memory.dmp

        Filesize

        4.8MB

      • memory/3496-2-0x0000000000C10000-0x00000000010D1000-memory.dmp

        Filesize

        4.8MB

      • memory/3496-1-0x0000000077004000-0x0000000077006000-memory.dmp

        Filesize

        8KB

      • memory/3652-18-0x0000000000E80000-0x0000000001341000-memory.dmp

        Filesize

        4.8MB

      • memory/3652-116-0x0000000000E80000-0x0000000001341000-memory.dmp

        Filesize

        4.8MB

      • memory/3652-26-0x00000000058B0000-0x00000000058B1000-memory.dmp

        Filesize

        4KB

      • memory/3652-90-0x0000000000E80000-0x0000000001341000-memory.dmp

        Filesize

        4.8MB

      • memory/3652-19-0x0000000005860000-0x0000000005861000-memory.dmp

        Filesize

        4KB

      • memory/3652-20-0x0000000005870000-0x0000000005871000-memory.dmp

        Filesize

        4KB

      • memory/3652-119-0x0000000000E80000-0x0000000001341000-memory.dmp

        Filesize

        4.8MB

      • memory/3652-21-0x0000000005850000-0x0000000005851000-memory.dmp

        Filesize

        4KB

      • memory/3652-22-0x0000000005890000-0x0000000005891000-memory.dmp

        Filesize

        4KB

      • memory/3652-118-0x0000000000E80000-0x0000000001341000-memory.dmp

        Filesize

        4.8MB

      • memory/3652-117-0x0000000000E80000-0x0000000001341000-memory.dmp

        Filesize

        4.8MB

      • memory/3652-27-0x00000000058A0000-0x00000000058A1000-memory.dmp

        Filesize

        4KB

      • memory/3652-115-0x0000000000E80000-0x0000000001341000-memory.dmp

        Filesize

        4.8MB

      • memory/3652-114-0x0000000000E80000-0x0000000001341000-memory.dmp

        Filesize

        4.8MB

      • memory/3652-113-0x0000000000E80000-0x0000000001341000-memory.dmp

        Filesize

        4.8MB

      • memory/3652-23-0x0000000005830000-0x0000000005831000-memory.dmp

        Filesize

        4KB

      • memory/3652-112-0x0000000000E80000-0x0000000001341000-memory.dmp

        Filesize

        4.8MB

      • memory/3652-64-0x0000000000E80000-0x0000000001341000-memory.dmp

        Filesize

        4.8MB

      • memory/3652-24-0x0000000005840000-0x0000000005841000-memory.dmp

        Filesize

        4KB

      • memory/3652-25-0x0000000005880000-0x0000000005881000-memory.dmp

        Filesize

        4KB

      • memory/3652-17-0x0000000000E80000-0x0000000001341000-memory.dmp

        Filesize

        4.8MB

      • memory/3652-100-0x0000000000E80000-0x0000000001341000-memory.dmp

        Filesize

        4.8MB

      • memory/4212-54-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/4212-60-0x0000000000C50000-0x0000000000C82000-memory.dmp

        Filesize

        200KB

      • memory/4212-51-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/4212-56-0x0000000000C50000-0x0000000000C82000-memory.dmp

        Filesize

        200KB

      • memory/4212-57-0x0000000000C50000-0x0000000000C82000-memory.dmp

        Filesize

        200KB

      • memory/4212-59-0x0000000000C50000-0x0000000000C82000-memory.dmp

        Filesize

        200KB

      • memory/4212-58-0x0000000000C50000-0x0000000000C82000-memory.dmp

        Filesize

        200KB

      • memory/4212-61-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/4212-63-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/5044-77-0x0000026BEFB50000-0x0000026BEFB72000-memory.dmp

        Filesize

        136KB

      • memory/5044-87-0x00007FFF98A30000-0x00007FFF994F1000-memory.dmp

        Filesize

        10.8MB

      • memory/5044-99-0x00007FFF98A30000-0x00007FFF994F1000-memory.dmp

        Filesize

        10.8MB

      • memory/5044-93-0x0000026BEFEA0000-0x0000026BEFEAA000-memory.dmp

        Filesize

        40KB

      • memory/5044-89-0x0000026BEDAD0000-0x0000026BEDAE0000-memory.dmp

        Filesize

        64KB

      • memory/5044-92-0x0000026BF0050000-0x0000026BF0062000-memory.dmp

        Filesize

        72KB

      • memory/5044-91-0x0000026BEDAD0000-0x0000026BEDAE0000-memory.dmp

        Filesize

        64KB

      • memory/5044-88-0x0000026BEDAD0000-0x0000026BEDAE0000-memory.dmp

        Filesize

        64KB