Analysis

  • max time kernel
    131s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    03-05-2022 20:37

General

  • Target

    payment swift.exe

  • Size

    929KB

  • MD5

    c4cf28c1d5e4da94c3391b90cd91671d

  • SHA1

    2c0db45e4852ab67255f78fe6921ada7a305244e

  • SHA256

    433c68e89fe741e7ec59e064861baf726ab0b8637849d9d92fa5e3a2819d211c

  • SHA512

    23590c2584a04127ec7c75f5f642a6884715390158b897e3617d4cbd536d6369388a0f3cce6d926ae7bf3e149d4cc8c99f82a35e340553421411d1c624506f39

Malware Config

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • MassLogger Main Payload 1 IoCs
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Turns off Windows Defender SpyNet reporting 2 TTPs
  • Windows security bypass 2 TTPs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 11 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 15 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\payment swift.exe
    "C:\Users\Admin\AppData\Local\Temp\payment swift.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Drops startup file
    • Windows security modification
    • Adds Run key to start application
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1484
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\payment swift.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4572
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\payment swift.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4528
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\payment swift.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1316
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\payment swift.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4780
    • C:\Users\Admin\AppData\Local\Temp\payment swift.exe
      "C:\Users\Admin\AppData\Local\Temp\payment swift.exe"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1696
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\payment swift.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1688
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 1060
      2⤵
      • Program crash
      PID:3708
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1484 -ip 1484
    1⤵
      PID:3724

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      d115cc18b8070f78ccd162118fba18ea

      SHA1

      822617c37f1d1816e45620fb2e0ca1fdd007e2c4

      SHA256

      e32bfaf0e8d35db784a9bc251c871754dad036e7bc77fa6a1a4b1ef3d0aa2072

      SHA512

      c75c8828b76614bf438d66e006d838add170033d1e913b514c3700a1741767d8ac8fa1d112ddcf60580edfe888886669df68dac1038e6749e7b3fb55f3ab01a5

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      d115cc18b8070f78ccd162118fba18ea

      SHA1

      822617c37f1d1816e45620fb2e0ca1fdd007e2c4

      SHA256

      e32bfaf0e8d35db784a9bc251c871754dad036e7bc77fa6a1a4b1ef3d0aa2072

      SHA512

      c75c8828b76614bf438d66e006d838add170033d1e913b514c3700a1741767d8ac8fa1d112ddcf60580edfe888886669df68dac1038e6749e7b3fb55f3ab01a5

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      3583867b95995e1726e68a83874b4acf

      SHA1

      b43586bfb05ff92e66a0c59a45984a849233bd4f

      SHA256

      4c1ea664ef5ab900e68b5e326785493a1bf9440d1947cf16b0ad85cdc49a6d90

      SHA512

      d6e9da6afc7f2121226fa3c007e91389845cb9847e5c9a01a9df585f931939369a9b0b836667aa9259a8b51edfc0dc8f8ae2233ebc4dab6bda2f4f739cb82411

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      3583867b95995e1726e68a83874b4acf

      SHA1

      b43586bfb05ff92e66a0c59a45984a849233bd4f

      SHA256

      4c1ea664ef5ab900e68b5e326785493a1bf9440d1947cf16b0ad85cdc49a6d90

      SHA512

      d6e9da6afc7f2121226fa3c007e91389845cb9847e5c9a01a9df585f931939369a9b0b836667aa9259a8b51edfc0dc8f8ae2233ebc4dab6bda2f4f739cb82411

    • memory/1316-135-0x0000000000000000-mapping.dmp

    • memory/1316-150-0x0000000070100000-0x000000007014C000-memory.dmp

      Filesize

      304KB

    • memory/1316-155-0x00000000074B0000-0x0000000007546000-memory.dmp

      Filesize

      600KB

    • memory/1316-156-0x0000000007460000-0x000000000746E000-memory.dmp

      Filesize

      56KB

    • memory/1316-157-0x0000000007570000-0x000000000758A000-memory.dmp

      Filesize

      104KB

    • memory/1316-158-0x0000000007550000-0x0000000007558000-memory.dmp

      Filesize

      32KB

    • memory/1484-132-0x00000000050E0000-0x0000000005684000-memory.dmp

      Filesize

      5.6MB

    • memory/1484-131-0x0000000004A90000-0x0000000004B2C000-memory.dmp

      Filesize

      624KB

    • memory/1484-130-0x0000000000070000-0x000000000015C000-memory.dmp

      Filesize

      944KB

    • memory/1688-167-0x0000000070340000-0x000000007038C000-memory.dmp

      Filesize

      304KB

    • memory/1688-163-0x0000000000000000-mapping.dmp

    • memory/1696-143-0x0000000000000000-mapping.dmp

    • memory/1696-144-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/1696-154-0x00000000051B0000-0x0000000005242000-memory.dmp

      Filesize

      584KB

    • memory/1696-164-0x0000000006A80000-0x0000000006A8A000-memory.dmp

      Filesize

      40KB

    • memory/1696-165-0x0000000006B90000-0x0000000006BE0000-memory.dmp

      Filesize

      320KB

    • memory/4528-139-0x00000000056B0000-0x00000000056D2000-memory.dmp

      Filesize

      136KB

    • memory/4528-142-0x0000000006640000-0x000000000665E000-memory.dmp

      Filesize

      120KB

    • memory/4528-153-0x00000000079C0000-0x00000000079CA000-memory.dmp

      Filesize

      40KB

    • memory/4528-134-0x0000000000000000-mapping.dmp

    • memory/4528-141-0x0000000006020000-0x0000000006086000-memory.dmp

      Filesize

      408KB

    • memory/4528-145-0x0000000007660000-0x0000000007692000-memory.dmp

      Filesize

      200KB

    • memory/4528-148-0x0000000070100000-0x000000007014C000-memory.dmp

      Filesize

      304KB

    • memory/4572-149-0x0000000006B80000-0x0000000006B9E000-memory.dmp

      Filesize

      120KB

    • memory/4572-146-0x0000000070100000-0x000000007014C000-memory.dmp

      Filesize

      304KB

    • memory/4572-140-0x0000000005F00000-0x0000000005F66000-memory.dmp

      Filesize

      408KB

    • memory/4572-138-0x0000000005860000-0x0000000005E88000-memory.dmp

      Filesize

      6.2MB

    • memory/4572-136-0x0000000002C90000-0x0000000002CC6000-memory.dmp

      Filesize

      216KB

    • memory/4572-152-0x00000000069A0000-0x00000000069BA000-memory.dmp

      Filesize

      104KB

    • memory/4572-133-0x0000000000000000-mapping.dmp

    • memory/4780-151-0x0000000007AB0000-0x000000000812A000-memory.dmp

      Filesize

      6.5MB

    • memory/4780-147-0x0000000070100000-0x000000007014C000-memory.dmp

      Filesize

      304KB

    • memory/4780-137-0x0000000000000000-mapping.dmp