Analysis

  • max time kernel
    149s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    14/10/2026, 06:22

General

  • Target
    chunk-0.msi
  • Size 3.1MB
  • Sample261014-g4vxeaxt8l
  • SHA256 26374a9d227f0a6fd9f72c982bb7939ecb8f18d5311d81fb4f3b64ba17eb732b
  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 14 IoCs
  • Stops running service(s) 4 TTPs
  • 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 System32 directory 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 28 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 23 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 9 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\chunk-0.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4388
  • 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
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3956
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4696
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding BF230B846815C358819649B6CAB0D4C6
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4176
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI2948.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240724390 2 ServiceActions!ServiceActions.CustomActions.StopServiceAndWait
        3⤵
        • Badlisted process makes network request
        • Checks computer location settings
        • Loads dropped DLL
        • Drops file in Windows directory
        • Reads the TCP/IP host and domain name from the registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:780
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe" /C sc stop
          4⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:2636
          • C:\Windows\system32\sc.exe
            sc stop
            5⤵
            • Launches sc.exe
            PID:4112
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI41E5.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240730609 31 ServiceActions!ServiceActions.CustomActions.AddUpdateServiceDependency
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        PID:3512
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI4292.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240730765 37 ServiceActions!ServiceActions.CustomActions.InstallServiceEvent
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        PID:4444
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 94FAD4D79AE9D04FFB07C732BFC95B26
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1672
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A7A59C31D970F5C93575949057359536 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4600
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:4848
  • C:\Program Files\HP\HP Assess and Respond\HPAssessAndRespond.exe
    "C:\Program Files\HP\HP Assess and Respond\HPAssessAndRespond.exe" -i
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious use of AdjustPrivilegeToken
    PID:4132

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        e59284f.rbs

        • Path C:\Config.Msi\e59284f.rbs
        • Size 219KB
        • SHA256 fa0d93abb0b4447c8bfc9cb685ad5a8ba6ecc274ec125f92ce2e5cdc8fc50edd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        HPAssessAndRespond.exe

        • Path C:\Program Files\HP\HP Assess and Respond\HPAssessAndRespond.exe
        • Size 3.0MB
        • SHA256 7edad8ffdad06ace3200a5755d2f1c141aa9272de0a7fc58bebad9b16dbfb735
        • MD5 SHA1 SHA512 SSDEEP TLSH

        698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB
        • Size 471B
        • SHA256 b6ee29e2257f344fd859e326a17e80a16690fc13cbd2c9a1fd2f75a2257a2cca
        • MD5 SHA1 SHA512 TLSH

        8EC9B1D0ABBD7F98B401D425828828CE_2EA0E4A795707F956F0E5FE15EDB4B66

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_2EA0E4A795707F956F0E5FE15EDB4B66
        • Size 727B
        • SHA256 c4b81bc240037b086b5254d594989c4ea25231d8eaf0f1211d728c12121597dd
        • MD5 SHA1 SHA512 TLSH

        C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
        • Size 727B
        • SHA256 98a7b79594d98a581c639dc80206be351a65feef3051dcb1ebb7bf550e726765
        • MD5 SHA1 SHA512 TLSH

        698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\698460A0B6E60F2F602361424D832905_8BB23D43DE574E82F2BEE0DF0EC47EEB
        • Size 400B
        • SHA256 269c8e898aaae5315567b2640d9318f32220d163b5d5615be29e6676b0ec5cb9
        • MD5 SHA1 SHA512 TLSH

        8EC9B1D0ABBD7F98B401D425828828CE_2EA0E4A795707F956F0E5FE15EDB4B66

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_2EA0E4A795707F956F0E5FE15EDB4B66
        • Size 412B
        • SHA256 266a48f8f18a869fcdf39cfc0a61a82bca90b72b85c13437d3abe959292219e6
        • MD5 SHA1 SHA512 TLSH

        C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
        • Size 412B
        • SHA256 2262dbba7a45d8a2b8fa3f47fe51097eec6bfa30feeb74706b506515562cae81
        • MD5 SHA1 SHA512 TLSH

        rundll32.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\rundll32.exe.log
        • Size 3KB
        • SHA256 f19fc8bb960e44df8804ec9bbb0225f8f9dde4d9fc3bab5edcfbbb8fec17a638
        • MD5 SHA1 SHA512 TLSH

        __PSScriptPolicyTest_haoonqnl.1du.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_haoonqnl.1du.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        MSI2948.tmp

        • Path C:\Windows\Installer\MSI2948.tmp
        • Size 553KB
        • SHA256 e7845a390e0c9b19aee3d069c6a883dd2d3e1e8c02f6265567778676c7a54326
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CustomAction.config

        • Path C:\Windows\Installer\MSI2948.tmp-0\CustomAction.config
        • Size 1KB
        • SHA256 33d947c04a10e3aff3dca3b779393fa56ce5f02251c8cbae5076a125fdea081f
        • MD5 SHA1 SHA512 TLSH

        ServiceActions.dll

        • Path C:\Windows\Installer\MSI2948.tmp-0\ServiceActions.dll
        • Size 34KB
        • SHA256 21829956c0e0165dcebaf90a9a94ce5bc492128538a8c699eb8d4facd88489bd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSI32D0.tmp

        • Path C:\Windows\Installer\MSI32D0.tmp
        • Size 211KB
        • SHA256 c8d190d5be1efd2d52f72a72ae9dfa3940ab3faceb626405959349654fe18b74
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Deployment.WindowsInstaller.dll

        • Path C:\Windows\Installer\MSI41E5.tmp-0\Microsoft.Deployment.WindowsInstaller.dll
        • Size 183KB
        • SHA256 791da16b0df6956e88b04dab8b543b99dc2abd9af24aa25208fe5a0981e811b3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Newtonsoft.Json.dll

        • Path C:\Windows\Installer\MSI4292.tmp-0\Newtonsoft.Json.dll
        • Size 695KB
        • SHA256 e1e27af7b07eeedf5ce71a9255f0422816a6fc5849a483c6714e1b472044fa9d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        e592850.msi

        • Path C:\Windows\Installer\e592850.msi
        • Size 3.1MB
        • SHA256 26374a9d227f0a6fd9f72c982bb7939ecb8f18d5311d81fb4f3b64ba17eb732b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        HPAssessAndRespond.Agent.log

        • Path C:\Windows\System32\config\systemprofile\AppData\Roaming\hpqlog\HPAssessAndRespond.Agent.log
        • Size 7KB
        • SHA256 fb4a44fad6c6942558fc48899dcbeb49816c558c04818f90df5f0a2ffdbd4a3e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 24.1MB
        • SHA256 6cdc18dab1459c4e601c4ebac193acfba34ff2b1d866dde0610d1451f6413b57
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {5d308fcd-f9ae-4438-b60c-b78581072bdf}_OnDiskSnapshotProp

        • Path \??\Volume{7d83d395-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{5d308fcd-f9ae-4438-b60c-b78581072bdf}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 00bcd0a00fcc95aaa73b05cf6c4fc5c76442570c3ad705d7601ec29612962a23
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/780-34-0x000001F758430000-0x000001F75845E000-memory.dmp

        memory/780-48-0x000001F75B200000-0x000001F75B222000-memory.dmp

        memory/780-38-0x000001F740090000-0x000001F74009A000-memory.dmp

        memory/4132-76-0x0000019F1AAA0000-0x0000019F1AB16000-memory.dmp

        memory/4132-74-0x0000019F1A970000-0x0000019F1AA20000-memory.dmp

        memory/4132-75-0x0000019F012A0000-0x0000019F012B2000-memory.dmp

        memory/4132-73-0x0000019F1A920000-0x0000019F1A96C000-memory.dmp

        memory/4132-72-0x0000019F1A630000-0x0000019F1A8AE000-memory.dmp

        memory/4132-70-0x0000019F00590000-0x0000019F0089E000-memory.dmp

        memory/4444-164-0x000002B5FEA00000-0x000002B5FEAB2000-memory.dmp