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Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/05/2024, 00:18

General

  • Target

    8bdeb5a9779798cb13a29fe7e54751dafa6ef70fa3a4e16069ea3c77442732cf.exe

  • Size

    222KB

  • MD5

    7a87f03a89b15ce00d59a490d76fb4f9

  • SHA1

    2d2afca75d0c840bd215f6d22c7ed53c6c4a02df

  • SHA256

    8bdeb5a9779798cb13a29fe7e54751dafa6ef70fa3a4e16069ea3c77442732cf

  • SHA512

    e6de9ee9af6dd1fce4da8067d73111d217f85e61b793a77961968d783b9915fc592b7ce1776bab9f15aeee24363d925be86f861f50abab6477527494c5155c09

  • SSDEEP

    3072:YsXRmUIMitPMQLse27vc+Eld+xZp2vPRL1tT06zJoxAWBcKpSP//dwlm2:ZR5ITMQLseGk7RZBGxAycKpSPX21

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\8bdeb5a9779798cb13a29fe7e54751dafa6ef70fa3a4e16069ea3c77442732cf.exe
    "C:\Users\Admin\AppData\Local\Temp\8bdeb5a9779798cb13a29fe7e54751dafa6ef70fa3a4e16069ea3c77442732cf.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2432
    • C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\Windows.Media.MediaControl32.exe
      "C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\Windows.Media.MediaControl32.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visiblity of hidden/system files in Explorer
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3732
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /tn Admin /tr "\"C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\Windows.Media.MediaControl32.exe\" arguments" /sc MINUTE /mo 1
        3⤵
        • Creates scheduled task(s)
        PID:1536
      • \??\c:\windows\microsoft.net\framework\v2.0.50727\InstallUtil.exe
        "c:\windows\microsoft.net\framework\v2.0.50727\\InstallUtil.exe" C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\Windows.Media.MediaControl32.exe
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:740
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe"
      2⤵
        PID:4984
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout /t 5 && del "C:\Users\Admin\AppData\Local\Temp\8bdeb5a9779798cb13a29fe7e54751dafa6ef70fa3a4e16069ea3c77442732cf.exe" && del "C:\Users\Admin\AppData\Local\Temp\8bdeb5a9779798cb13a29fe7e54751dafa6ef70fa3a4e16069ea3c77442732cf.exe.config"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3608
        • C:\Windows\system32\timeout.exe
          timeout /t 5
          3⤵
          • Delays execution with timeout.exe
          PID:3792
    • C:\Windows\system32\wbem\WmiApSrv.exe
      C:\Windows\system32\wbem\WmiApSrv.exe
      1⤵
        PID:3872
      • C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\Windows.Media.MediaControl32.exe
        C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\Windows.Media.MediaControl32.exe arguments
        1⤵
        • Executes dropped EXE
        PID:760
      • C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\Windows.Media.MediaControl32.exe
        C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\Windows.Media.MediaControl32.exe arguments
        1⤵
        • Executes dropped EXE
        PID:3532
      • C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\Windows.Media.MediaControl32.exe
        C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\Windows.Media.MediaControl32.exe arguments
        1⤵
        • Executes dropped EXE
        PID:4384

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0\UsageLogs\Windows.Media.MediaControl32.exe.log

        Filesize

        595B

        MD5

        5446caf843683ea0aab610c729c40ab1

        SHA1

        6df96e9c6c90843766b0fde8cec5e3a955291e74

        SHA256

        f7dbd089564c22c13483b867392a7bd1f9b49f8e0b089e2cc7bd7bfbf62c6329

        SHA512

        488e2b8750ff820e3fbdcbb9201abddfc6c8ccc3e7cc29962a05c2313ea862eddbf4e0a49ab6a5029aa4d9c137daf2623f1b34e4dcb896269e6edae8276148ff

      • C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\Windows.Media.MediaControl32.exe

        Filesize

        222KB

        MD5

        f91862d00fc6fd8974d7866fbbd3c69c

        SHA1

        3f617dda2fb6ed0ced1bf1cbd6466c74f2e23173

        SHA256

        9b53a999098e5b92b5dc51c17aef8c38394caa60ff36772d69ec6ad7f1df7aa4

        SHA512

        7443bbbc151cce946460b305c23e1846959d53754a9c5aed1b89a7544cfb89da65e8bcae4ed581c260da5800e0efafdf7fb6cfc480963e37fe3e63a8afb98dff

      • C:\Users\Admin\AppData\Local\_foldernamelocalappdata_\Windows.Media.MediaControl32.exe.config

        Filesize

        1KB

        MD5

        dd3d04c365984b4ec57a80503f81fddf

        SHA1

        c55fbcb61818e47dac9aae465faff91f0805bd7c

        SHA256

        40a59ca9744dc3d4647f246b2dc553f37f8095418c1b48a9bd94cdb5c03dbc5c

        SHA512

        0dd459def2abe9e3f0d1251049a0755c63f7dd3d85e91dba272c3f479f2578e3f3f2379e1cd6913190f7f596af721201eb5d9423ab28aed72bde5cd3cac7f785

      • memory/740-32-0x0000000000400000-0x0000000000408000-memory.dmp

        Filesize

        32KB

      • memory/760-35-0x000000001C9A0000-0x000000001C9C2000-memory.dmp

        Filesize

        136KB

      • memory/2432-5-0x000000001BD00000-0x000000001BD66000-memory.dmp

        Filesize

        408KB

      • memory/2432-3-0x000000001BB30000-0x000000001BBCC000-memory.dmp

        Filesize

        624KB

      • memory/2432-7-0x00007FFF58CB0000-0x00007FFF59651000-memory.dmp

        Filesize

        9.6MB

      • memory/2432-8-0x00007FFF58CB0000-0x00007FFF59651000-memory.dmp

        Filesize

        9.6MB

      • memory/2432-10-0x000000001E740000-0x000000001E7E6000-memory.dmp

        Filesize

        664KB

      • memory/2432-9-0x000000001BE80000-0x000000001BEA2000-memory.dmp

        Filesize

        136KB

      • memory/2432-11-0x00007FFF58CB0000-0x00007FFF59651000-memory.dmp

        Filesize

        9.6MB

      • memory/2432-6-0x00007FFF58CB0000-0x00007FFF59651000-memory.dmp

        Filesize

        9.6MB

      • memory/2432-4-0x0000000000CB0000-0x0000000000CB8000-memory.dmp

        Filesize

        32KB

      • memory/2432-0-0x00007FFF58F65000-0x00007FFF58F66000-memory.dmp

        Filesize

        4KB

      • memory/2432-1-0x00007FFF58CB0000-0x00007FFF59651000-memory.dmp

        Filesize

        9.6MB

      • memory/2432-29-0x00007FFF58CB0000-0x00007FFF59651000-memory.dmp

        Filesize

        9.6MB

      • memory/2432-2-0x000000001B5C0000-0x000000001BA8E000-memory.dmp

        Filesize

        4.8MB

      • memory/3732-26-0x00007FFF58CB0000-0x00007FFF59651000-memory.dmp

        Filesize

        9.6MB

      • memory/3732-31-0x000000001B120000-0x000000001B142000-memory.dmp

        Filesize

        136KB

      • memory/3732-33-0x000000001FA40000-0x000000001FAA2000-memory.dmp

        Filesize

        392KB

      • memory/3732-30-0x00007FFF58CB0000-0x00007FFF59651000-memory.dmp

        Filesize

        9.6MB

      • memory/3732-37-0x00007FFF58CB0000-0x00007FFF59651000-memory.dmp

        Filesize

        9.6MB

      • memory/3732-27-0x00007FFF58CB0000-0x00007FFF59651000-memory.dmp

        Filesize

        9.6MB