Overview

overview

6

Static

static

1

wsl.2.2.1.0.x64.msi

windows10-1703-x64

6

wsl.2.2.1.0.x64.msi

windows10-2004-x64

6

Analysis

  • max time kernel
    55s
  • max time network
    59s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/04/2024, 15:42

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General

  • Target

    wsl.2.2.1.0.x64.msi

  • Size

    127.9MB

  • MD5

    9fc9981ad0ed1c2f491b9e60640da2da

  • SHA1

    a5cb4037dc41dd38e040b9fecfd6681d4d76bcdf

  • SHA256

    b154410976d75f26c96f5d49180de15c3a5291f94fadf451fd66e8a747a3d6a2

  • SHA512

    cb5a34eef3afc2ca5b60ba426da5d1b68622b953901b4bb289d6a164d1b8f7333e6149bf9114aa4fd25c3612c7214d402a4a75732821596b208e24941c2e716e

  • SSDEEP

    3145728:j7UGtbu/G5X2DAuV3KY/NGNWOMboQn0WEhyCp7hjh:8eu/yXluIosNSbtyF

Score
6/10
persistence

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 18 IoCs
  • Loads dropped DLL 8 IoCs
  • Registers COM server for autorun 1 TTPs 20 IoCs
    persistence
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\wsl.2.2.1.0.x64.msi
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2908
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Registers COM server for autorun
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2880
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:5080
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding 73BCD52004BED9082FCDF6EFA51CBD40 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      PID:4072
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding AD1033389435F9A47FB162C63DF27DFA
      2⤵
      • Loads dropped DLL
      PID:3380
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:1616
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k AppReadiness -p -s AppReadiness
    1⤵
      PID:2500
    • C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe
      "C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe" /InvokerPRAID: Microsoft.MicrosoftOfficeHub prelaunch
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1000
    • C:\Windows\system32\wwahost.exe
      "C:\Windows\system32\wwahost.exe" -ServerName:Microsoft.MicrosoftOfficeHub.wwa
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2576

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Config.Msi\e577928.rbs
      Filesize

      25KB

      MD5

      e47b050db55ed5e7efdf0013a04ceaa2

      SHA1

      fe20a88e36cca9551254bd8d2a9b284d81c4f038

      SHA256

      4e2d5cb80be9a734a1099f2642ddc283ddf4675065dca791cdc5095d7697b878

      SHA512

      e9108d6293be7f1c09feb5c82808b0e8df3942238ef4d0131cddf3014255b4376860449ecb9107fabb9cf7e0351df7955ef258ff6dd2778ea11f49066483c123

      Download Submit

    • C:\Program Files\WSL\en-US\msrdc.exe.mui
      Filesize

      48KB

      MD5

      e5dd38ac042a82478b5a22202f0469d3

      SHA1

      ab416b170cfbfb11d0becf2003c2e5902768674c

      SHA256

      98f1e7a8379966054fc1982f5e3065c95b2a282f23290813c1848f409a9426e5

      SHA512

      96415e215c328bada6f0fb3a7c1c6efd99a3c72598f6dda36f363dc9b1c73e6f4c1240cd294011584addbd458d316a6d2fb4df561fcf552b21dc734de643b060

      Download Submit

    • C:\Program Files\WSL\en-US\rdclientax.dll.mui
      Filesize

      140KB

      MD5

      ccbfff03cb8c73d29871c3f92a398d79

      SHA1

      e3c2173b035552d1e4203d1cc715efc6c2bf575f

      SHA256

      0934975b9f238d5291de1abf1705f648194c1f9b47bde7ca84b50ff62508c463

      SHA512

      1b644319b72ca5c14dfca09da07fd42eea1e41e05e0fc35d2b3d14dc9c633542f038778661c6afc08cc4bf9e3beac6393ec4b85b411917823b582a30c04bb686

      Download Submit

    • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\WSL.lnk
      Filesize

      2KB

      MD5

      e1ebb993fc7892e1732903c6239b90c1

      SHA1

      d08a17dd58f4452e132d670c67d099f2117f0730

      SHA256

      335116ffb46ad7bcfbe6aeb4492f2aa1a8f13fb6572c450225fe195fafc58034

      SHA512

      67a401815a682ba8261a4e2c4fe2abce952ef389152fe31e5e47b02e97eabe5d82225dcf3fca6489243827a07a513b0adec4e8d0dc9b1a04ab2fad43772c2b0f

      Download Submit

    • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\WSL.lnk
      Filesize

      2KB

      MD5

      f2d63b78fdf5a6d36cd3c08681c97389

      SHA1

      1eb7925b4f526bb2877d2d2ddbf72409e86b0997

      SHA256

      792b4bfe164f0b4211422d74e724792daea3962b5c443b6cd975bf280a5fbb11

      SHA512

      95664d2adb6a9211432e37795da469150c88c1394050e433f2a1f3470383299ce3e48790b51252fdb2fb24618130ef46cdfa786b071e4b3ea5c5288c5024bca2

      Download Submit

    • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\WSL.lnk~RFe579952.TMP
      Filesize

      2KB

      MD5

      f1a4860b58c2b31e97a91bc30ad6858b

      SHA1

      09b72cb0155030d5336f4750c231b7c46b6d2afa

      SHA256

      7f00e825c62270c075dbf53551cdb4d592bfbbf3e7e3dce8414a52c4d7be2373

      SHA512

      759ac428d6241a75cdb6abc5ee80eb236770f3837a0a3dc6679808c07c522f3d4e533f69654114f309f8be1ad8d6acc04f7cf81339c6ad1be4ef7696f087fe89

      Download Submit

    • C:\Windows\Installer\MSI809B.tmp
      Filesize

      2.7MB

      MD5

      46b84cfe069d7d6fd2db983ab58ddb80

      SHA1

      2d750d108bc84487a104f21e21054f5daca93ccb

      SHA256

      f347030b79e660f41f737028e50745d40f2fef06cfc82aaf9501949e07deb3de

      SHA512

      93780db0d94cf8ae24f1998a27919240ce9e0c4ead7c98d182218fc05fe8e3b6f395223267488a63d8ceac685b87e66d82484e3b59325f34daedba5981f0a6c1

      Download Submit

    • C:\Windows\Installer\e577929.msi
      Filesize

      127.9MB

      MD5

      9fc9981ad0ed1c2f491b9e60640da2da

      SHA1

      a5cb4037dc41dd38e040b9fecfd6681d4d76bcdf

      SHA256

      b154410976d75f26c96f5d49180de15c3a5291f94fadf451fd66e8a747a3d6a2

      SHA512

      cb5a34eef3afc2ca5b60ba426da5d1b68622b953901b4bb289d6a164d1b8f7333e6149bf9114aa4fd25c3612c7214d402a4a75732821596b208e24941c2e716e

      Download Submit

    • \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
      Filesize

      23.7MB

      MD5

      67b992eb1126665b49b0a9aa0f1aa6d5

      SHA1

      1c29a3a42cc5c9545bf02372687a4eb1bb7e5033

      SHA256

      6150add3b0803d7d9c03a933fedb7e572d41566ac10aa062724b8e848cef4d06

      SHA512

      5b8002f567df319e535481af3e512a94e077e8e1fcadf6fe72c06499ca6df81bc6d99504447bbfcd50302c55103d1289897e7e9750a2258c1fd57013ba1b2ecb

      Download Submit

    • \??\Volume{df05fbf6-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{b3603e50-a55d-4af0-a17f-db69d6a052bc}_OnDiskSnapshotProp
      Filesize

      6KB

      MD5

      bb91c007e0121765788d036b5d603fc2

      SHA1

      d5c24a36bf301ac57c6b48b85d46ba8eca570258

      SHA256

      da7a90f38d66f26eed7d2f2e8b10d7e53a5eb822453bbbf9bdc58688542ce1f6

      SHA512

      9de66c0903f2d7f58e4043e9f03ddd2bff724d985ea206f4c6ef381c931284e26031ee3a316301b8a0153347095a01d436fc64c18919322aed89a9cd3349c24d

      Download Submit

    • memory/1000-178-0x00000200C7850000-0x00000200C785E000-memory.dmp

      Filesize

      56KB

      Download

    • memory/1000-179-0x00000200E1D70000-0x00000200E1D7A000-memory.dmp

      Filesize

      40KB

      Download

    • memory/1000-180-0x00000200E1DA0000-0x00000200E1DA8000-memory.dmp

      Filesize

      32KB

      Download

    • memory/1000-181-0x00007FFF488A0000-0x00007FFF49361000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/1000-182-0x00000200E3030000-0x00000200E3279000-memory.dmp

      Filesize

      2.3MB

      Download

    • memory/1000-250-0x00007FFF488A0000-0x00007FFF49361000-memory.dmp

      Filesize

      10.8MB

      Download