Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    31/05/2026, 12:15

General

  • Target
    setup_DocusignInstall.msi
  • Size 8.2MB
  • Sample260531-pexcyagv2w
  • SHA256 1efd83aeebd71f5c6e6ac28e6d1637ba866399e63b0f3360b1c386a917b5d4ae
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Loads dropped DLL 8 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 Windows directory 11 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\setup_DocusignInstall.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1536
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3944
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1564
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding D09130A22ECC2811CD53B148966AC6B3
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:780
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSIF0A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240717687 2 Atera.Agent.Installer.Msi.Ca!Atera.Agent.Installer.Msi.Ca.CustomActions.GenerateAgentId
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • Suspicious use of AdjustPrivilegeToken
        PID:4940
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI1014.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240717875 6 Atera.Agent.Installer.Msi.Ca!Atera.Agent.Installer.Msi.Ca.CustomActions.ShouldContinueInstallation
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Drops file in Windows directory
        • Suspicious use of AdjustPrivilegeToken
        PID:1484
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:4300

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB
        • Size 471B
        • SHA256 be6f3e7a27aade13538e4700fae68dbcf3b7370a48bab41d06abb3d80b45f5e0
        • MD5 SHA1 SHA512 TLSH

        8EC9B1D0ABBD7F98B401D425828828CE_6FBFBE34ABAF2109B411B965FB39009E

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_6FBFBE34ABAF2109B411B965FB39009E
        • Size 727B
        • SHA256 7b7a0ba6ecedc7bb1c3145579c5546f4c5dec890517a566c1143942081bc9509
        • MD5 SHA1 SHA512 TLSH

        C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
        • Size 727B
        • SHA256 e23ab64b253e909188e7281e218829116c97336dc77763a071fc48331000d068
        • MD5 SHA1 SHA512 TLSH

        698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB
        • Size 400B
        • SHA256 58fd01d7655de77c2fb507bb164b6b636181ee94bdc0e4c1a0ebe7c2de012846
        • MD5 SHA1 SHA512 TLSH

        8EC9B1D0ABBD7F98B401D425828828CE_6FBFBE34ABAF2109B411B965FB39009E

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_6FBFBE34ABAF2109B411B965FB39009E
        • Size 408B
        • SHA256 0cc571e5580d45346eaeb79ab285d95e29f43491968da3734e0aed6628881079
        • MD5 SHA1 SHA512 TLSH

        C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
        • Size 412B
        • SHA256 b2c0dae986ed96a60ae86e1b89f382756e00aba42af8fa98e8ab1c7de8d91173
        • MD5 SHA1 SHA512 TLSH

        rundll32.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\rundll32.exe.log
        • Size 847B
        • SHA256 16f4a7736a0c2aee54256d3d75ce4c0816fabf130b3b92340deca34c5f5fda43
        • MD5 SHA1 SHA512 TLSH

        MSIF0A.tmp

        • Path C:\Windows\Installer\MSIF0A.tmp
        • Size 340KB
        • SHA256 1997e4959d6c187e9ae35097b4cc0702e8a1564acb1dec7b080adcaa9b973fd0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CustomAction.config

        • Path C:\Windows\Installer\SFXCABD109FBB894A1CB8A7E1D849AEF4E166\CustomAction.config
        • Size 956B
        • SHA256 2dbc73a3bc444a9119c9b5e20276698384d9ad9535a8a7547c44d1b9a8d67346
        • MD5 SHA1 SHA512 TLSH

        WixToolset.Dtf.WindowsInstaller.dll

        • Path C:\Windows\Installer\SFXCABD109FBB894A1CB8A7E1D849AEF4E166\WixToolset.Dtf.WindowsInstaller.dll
        • Size 193KB
        • SHA256 a614884ea627da1925131ebf41e8ae202caeac0fe543b86384f5eb2bfaf1aa75
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Atera.Agent.Installer.Msi.Ca.dll

        • Path C:\Windows\Installer\SFXCAD674AA148845919B009F5AEF43C055C9\Atera.Agent.Installer.Msi.Ca.dll
        • Size 59KB
        • SHA256 46a2844072f1be835debc683da08d7a37d866c6a4a2b1bff79f9e4bae60d9403
        • MD5 SHA1 SHA512 SSDEEP TLSH

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 24.6MB
        • SHA256 55fcf507254916fb63499323a4c82284686721be0227725a74b152f23103ebaf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {5bce1420-5325-4be1-a07f-c1cc789f6339}_OnDiskSnapshotProp

        • Path \??\Volume{67a68b58-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{5bce1420-5325-4be1-a07f-c1cc789f6339}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 84fb120304af16b588bb6577ae21bbe7ff4f985b9426668000319f7e56598944
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1484-60-0x000001BFEB860000-0x000001BFEB89C000-memory.dmp

        memory/1484-59-0x000001BFEB7C0000-0x000001BFEB7D2000-memory.dmp

        memory/1484-63-0x000001BFEBC70000-0x000001BFEBDBF000-memory.dmp

        memory/1484-67-0x000001BFEBC70000-0x000001BFEBDBF000-memory.dmp

        memory/4940-42-0x00000196AB990000-0x00000196ABADF000-memory.dmp

        memory/4940-37-0x0000019693470000-0x0000019693484000-memory.dmp

        memory/4940-33-0x0000019693490000-0x00000196934C4000-memory.dmp