Overview

overview

10

Static

static

10

a5052518e8...f9.exe

windows7-x64

9

a5052518e8...f9.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    150s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-09-2024 17:54

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General

  • Target

    a5052518e8735f52112f0eec7f0416f9.exe

  • Size

    146KB

  • MD5

    a5052518e8735f52112f0eec7f0416f9

  • SHA1

    5442e7cbd8d82d70937c1bd599472e7f202224d0

  • SHA256

    fa0259d8b6d87ae11532b7c3e26ef3ace9df21ae3919e97c73de88c6b75d2fb1

  • SHA512

    254fa270339145cba103b0cae10813548b54e0127f88c709dbbc83fc43a0dc828ef3d07ab19c917469e76a45a0903a858bbdc900412f11072f2d80677de2017d

  • SSDEEP

    3072:h6glyuxE4GsUPnliByocWepGEIqC6f7VaIAhzSCn8X:h6gDBGpvEByocWemFBV8

Score
9/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (640) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

    spywarestealer
  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • 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
    evasion
  • 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 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5052518e8735f52112f0eec7f0416f9.exe
    "C:\Users\Admin\AppData\Local\Temp\a5052518e8735f52112f0eec7f0416f9.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2284
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:4552
    • C:\ProgramData\1384.tmp
      "C:\ProgramData\1384.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:3608
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\1384.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:336
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:5104
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3672
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{9790261A-90DB-44CE-BB8C-0EDE0844701D}.xps" 133710692923260000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:2440

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2629364133-3182087385-364449604-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      147ef488041f23335b55d45c40112abd

      SHA1

      8055b7763724c53a378952e8b9f7e256b4b9cad4

      SHA256

      96433935dedbaeaadfedaacccbdcbc2e3728f41987283784d2277af302a23299

      SHA512

      fd9e11cfaac064c104c42fe16ef00c710b344667423a8020017bdfc49dac28a42842e2ada90574916911465d7cd3c238e6b98aa98efed77cc00bba839ccbb64f

      Download Submit

    • C:\ProgramData\1384.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
      Filesize

      146KB

      MD5

      1b66c081b6e43e7f341cf7e6a082ed37

      SHA1

      48740916dea8ea1ecbe3c82f6eb4e42e83ca6f09

      SHA256

      4c87f4b8a1b46d4b82635c33e44d424d118d5ec95d4dbc413b81e4da7b5e04a2

      SHA512

      0d7c563085ffc25dc5d88f5530e56fa43060e614214caa311295b82364fdc7a5732d41a7c733f83d8133032e3925002af051c75aef602b5d98e05412d0c26671

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\{1941D5AE-112F-4951-8AC6-C86109728C71}
      Filesize

      4KB

      MD5

      9eabcd3e417b66095dfe83aa1d609b1d

      SHA1

      18e79b7b16f50a3b9ac7f03238b6c01333baabf2

      SHA256

      ef48aa0eb04db9114c3e71d8d47a08b6088ba30e168fdc095f31e5be8dcd3465

      SHA512

      0776c32f6b91a723a1c7788c85bf892873794de73e6766f8e8dc6d6ba381ab0f5df664732fc9f35a97164c4c2af5c006db7173a49229dbe4908a3d05ccffa12b

      Download Submit

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

      4KB

      MD5

      3ceb881dc7b93e5d2c2eff5d887c4c86

      SHA1

      ddd123ab5c8c234b032ba7ea262778dff439efc1

      SHA256

      4d3c08b9c14895220c658b9a632c85bd06654adbfbb57af6f3b3e9513f9b0062

      SHA512

      ebebf696309930a5909561ccba312606ee4cf68369448c2aae095a43df788652a84fcae3395a5c02aee27b4070b719afa6e39aeef57ebf9df000318e3ec07528

      Download Submit

    • C:\iMWl3xQaf.README.txt
      Filesize

      343B

      MD5

      72b1ffaeb7de456483f491ecceadb088

      SHA1

      ee1953abc295245ab01f35a4a823883826bf2b41

      SHA256

      eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7

      SHA512

      c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-2629364133-3182087385-364449604-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      a0c0ca9e25951bef14a7afb9ba6fadeb

      SHA1

      761dbac110d21889b1f4257d5be0f0dba81130e4

      SHA256

      2cdefb74ea23d0548b3b52f9efce1b60ea69284f29b5cccb41be0da06919ad85

      SHA512

      5e2932cd2be32184273c5e9a3b0c5a3a6cc1dfb9e3a7af3589620be0b495a2a356e42e42205105bca5cdaaa2f3d85e06739aae840baf343f0ec50c901ab13d5b

      Download Submit

    • memory/2284-2960-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2284-2959-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2284-1-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2284-0-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2440-2972-0x00007FFB2C950000-0x00007FFB2C960000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2440-2974-0x00007FFB2C950000-0x00007FFB2C960000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2440-2973-0x00007FFB2C950000-0x00007FFB2C960000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2440-2975-0x00007FFB2C950000-0x00007FFB2C960000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2440-2976-0x00007FFB2C950000-0x00007FFB2C960000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2440-3009-0x00007FFB2A790000-0x00007FFB2A7A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2440-3010-0x00007FFB2A790000-0x00007FFB2A7A0000-memory.dmp

      Filesize

      64KB

      Download