Resubmissions

21-07-2024 10:03

240721-l3sswaybja 10

21-07-2024 09:38

240721-ll4ttazdpl 10

Analysis

  • max time kernel
    47s
  • max time network
    39s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-07-2024 09:38

Errors

Reason
Machine shutdown

General

  • Target

    c394e1673274a8d0861ed637c425de244ead5f8ffbc7cb84862d9b81ec884505.exe

  • Size

    145KB

  • MD5

    337559ae1b02b42586781787918b4b6c

  • SHA1

    114577ce6270fde6ed9dbc782484bfa36766baed

  • SHA256

    c394e1673274a8d0861ed637c425de244ead5f8ffbc7cb84862d9b81ec884505

  • SHA512

    8f6a3ed66d74a3950c78b24c8617714697ba8f3eea8ff75ba74206a2ee814212389d50d2824cdf96311774f16730429e4bae28b9c59b97dd0baf4e20dc73189f

  • SSDEEP

    3072:uqJogYkcSNm9V7D/Lwi7Z2ncxMN9vMWT:uq2kc4m9tDTwi7Z2cF

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c394e1673274a8d0861ed637c425de244ead5f8ffbc7cb84862d9b81ec884505.exe
    "C:\Users\Admin\AppData\Local\Temp\c394e1673274a8d0861ed637c425de244ead5f8ffbc7cb84862d9b81ec884505.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3868
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:2472
    • C:\ProgramData\D38D.tmp
      "C:\ProgramData\D38D.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      PID:4692
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:3176
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3128
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{464B552F-BA0E-40EA-A42E-0A2327E3E20F}.xps" 133660283055770000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:4324

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-47134698-4092160662-1261813102-1000\desktop.ini

      Filesize

      129B

      MD5

      6664fafdf0d70fa44856a67869724f45

      SHA1

      3c4b4f64b824c6639ae22e4707331cfb70494301

      SHA256

      5877621bffe2f78aa1dad2f4763ccf6a1f71ee9f7c915ca8b44ce877411c3669

      SHA512

      851109660ceb3437b53e69bc2f9126c14efbba4c8124dca597283eb4e63d5ad9448d4a7447f01d68229102bc81517ee9464b8e8225d9e1c072329776756ea621

    • C:\ProgramData\D38D.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

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

      Filesize

      145KB

      MD5

      4e868ea68473216f4b5ca4eaafd7401c

      SHA1

      67364396fec9e97cbd69a2568d6378a9d9f00cea

      SHA256

      c5967a2424d8275f8111c5f77558cf87d5a4b3cda99cf9366a3ca45dac05544d

      SHA512

      e71bc03f937e207341bcddd14b3a4ba0f3e76285662698e0f968ed22315aee95f1bf45a5f5cb64865a4fe86649cea81176736ffbe3506773635b4ab45fdaebb3

    • C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2

      Filesize

      4KB

      MD5

      a2dd7c503e6693b4f05a98a4883730a3

      SHA1

      e42633410e52b150d2ea33581bb4fef00ff89bc4

      SHA256

      9c99cd392272d6daeabde2627f13afbc2c736b05fc44806399b79a2d2ddfc9d0

      SHA512

      fcd9301679bded1c1bc20b3c11700e119dc104694aca330936f7a00d341f46a454e636cb9514241eaec8d4568cef9f3c77638d09192eebe8f29c0862b279e939

    • C:\txdM9F1WD.README.txt

      Filesize

      27B

      MD5

      734928ecdc131bc5f8de15316a4a3c36

      SHA1

      99f69f63b39bc26bab9e3a88a37e5eca67aff5c8

      SHA256

      5778fea386e2432c9d30e0a22ad06a4021462d6688c3dd2bf19e7a0206049fd5

      SHA512

      e0490bc9cb7cb18c99824eaf8aa37ee10be841245a3aa03f227d80dfd63ab125d025de6d9374883707a0ce60dc6e85079ada0bd1a22121ed9e9c75836fcf979d

    • F:\$RECYCLE.BIN\S-1-5-21-47134698-4092160662-1261813102-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      4bb48090c572212955d491d29746ea00

      SHA1

      35bb72b806850ff93ebd568a8d7f6bbb797d3e39

      SHA256

      280ad58c7d322fa67c2c93b660af738a5c1adb41bf5dfa4fc5adcec1eb64b4cf

      SHA512

      e8d4f2db4ac785a7cb2a05ba5dad292dcc112f933f65529445a159a777b55d1cc0d8a77392e29f53831b986c86834c47baf6e8f780824df1b4755789d1c49a90

    • memory/3868-0-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

      Filesize

      64KB

    • memory/3868-1-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

      Filesize

      64KB

    • memory/3868-2-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

      Filesize

      64KB

    • memory/4324-3029-0x00007FFF88BF0000-0x00007FFF88C00000-memory.dmp

      Filesize

      64KB

    • memory/4324-3030-0x00007FFF88BF0000-0x00007FFF88C00000-memory.dmp

      Filesize

      64KB

    • memory/4324-3028-0x00007FFF88BF0000-0x00007FFF88C00000-memory.dmp

      Filesize

      64KB

    • memory/4324-3027-0x00007FFF88BF0000-0x00007FFF88C00000-memory.dmp

      Filesize

      64KB

    • memory/4324-3026-0x00007FFF88BF0000-0x00007FFF88C00000-memory.dmp

      Filesize

      64KB

    • memory/4324-3059-0x00007FFF86750000-0x00007FFF86760000-memory.dmp

      Filesize

      64KB

    • memory/4324-3060-0x00007FFF86750000-0x00007FFF86760000-memory.dmp

      Filesize

      64KB