Resubmissions

13-03-2024 13:29

240313-qrejbsff49 8

13-03-2024 13:24

240313-qnhrksfe74 6

Analysis

  • max time kernel
    195s
  • max time network
    205s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-03-2024 13:24

General

  • Target

    cisa.msi

  • Size

    1.5MB

  • MD5

    c4e8f3e02fd50a4051f11048f1355726

  • SHA1

    c82bf39c9f4797f346447aecc1070fb8c892010f

  • SHA256

    3a950d7e6736f17c3df90844c76d934dc66c17ec76841a4ad58de07af7955f0f

  • SHA512

    e44d8330c4ffdae01614ed5d11c2f112cff9b39bae793242f983d039e1404d371a2697a77fa65b740e43548ab1b203607a6d82b05ff3df741be02bd99a136592

  • SSDEEP

    24576:QjGxLNvYLSMvZCFlp8zBQSc0ZoCvqKwx0ECIgYmfLVYeBZr7A0r7Jh3OnJ3qXIoj:QjivYpW8zBQSc0ZnSKeZKumZr7A+D3O2

Score
6/10

Malware Config

Signatures

  • 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 Windows directory 10 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 10 IoCs
  • Checks SCSI registry key(s) 3 TTPs 8 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 45 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • 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\cisa.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2088
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 037626B93DD59102E52522D460053001 C
      2⤵
      • Loads dropped DLL
      PID:3040
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5732
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 816745CE3DCF68EC9EA52D69E42A5E13
        2⤵
        • Loads dropped DLL
        PID:5860
      • C:\Windows\Installer\MSIF2CF.tmp
        "C:\Windows\Installer\MSIF2CF.tmp" C:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\stat\falcon.dll, vgml
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:6084
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:856
    • C:\Windows\system32\mmc.exe
      "C:\Windows\system32\mmc.exe" "C:\Windows\system32\taskschd.msc" /s
      1⤵
      • Drops file in System32 directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:4472
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\stat\falcon.dll, vgml
      1⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5140
      • C:\Windows\System32\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_481b8caf.dll", vgml
        2⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        PID:2664
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /7
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1124
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:5000
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe"
        1⤵
          PID:1784

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Config.Msi\e57edeb.rbs

          Filesize

          1KB

          MD5

          fae8f4542d401e2ac84e4fc68e43ee13

          SHA1

          26ca1f82789a8bb7bb11c6d24e427f886ed2b49d

          SHA256

          942ca969e863302e1a1d968132a05776c4ea753863bcec4f538fd21ce3bfb45a

          SHA512

          975345c69a6534daf387a093923c4906dedf583648f05a3a34796f76248b156b6dcde073c3688ed42819a07f8e6bbc0868e29d2f2b65948ffe3622545a14b517

        • C:\Users\Admin\AppData\Local\Temp\MSI76A7.tmp

          Filesize

          436KB

          MD5

          475d20c0ea477a35660e3f67ecf0a1df

          SHA1

          67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

          SHA256

          426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

          SHA512

          99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

        • C:\Users\Admin\AppData\Local\stat\falcon.dll

          Filesize

          694KB

          MD5

          da8ae8e1de522b20a462239c6893613e

          SHA1

          7f65ef885815d81d220f9f42877ff0d696b0134c

          SHA256

          aee22a35cbdac3f16c3ed742c0b1bfe9739a13469cf43b36fb2c63565111028c

          SHA512

          d2dca9ba9272a0bdfa88f7520545e21a1f4d18dcacec36b072369cee8e28ba635a0214b47caef74b6f7fcd06e120d898da997e71c8955c72510972c66d2a855d

        • C:\Windows\Installer\MSIF2CF.tmp

          Filesize

          389KB

          MD5

          b9545ed17695a32face8c3408a6a3553

          SHA1

          f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

          SHA256

          1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

          SHA512

          f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

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

          Filesize

          15.0MB

          MD5

          8358f51c56f5c9f5894eb1e3f535323c

          SHA1

          c6d16786a85a5a42fff39bd23b7c9218e58cb47d

          SHA256

          97aa417ed3bc5f62b2fef06b8148a6efa345e7975e9c890f309dc277a7a49284

          SHA512

          d03d30435fe0cbbb316293cfb89e0ec6f494c75586a26a2bdd3312009512917cecef1a4fb35b21c259098aa76b7aa4f4241270767323db19eb2ebc0f46b0f55d

        • \??\Volume{ef7552f8-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{799e50b2-704b-4630-b581-34df4968f2fd}_OnDiskSnapshotProp

          Filesize

          6KB

          MD5

          6b8d98ba5b1bce270535cbd9acb0477e

          SHA1

          d6942118293acf62d3379e923d09f2c4025ba53e

          SHA256

          be5a8862628563d3991b50c0d3f4f9723556da7f19c03f516d3930953c6fccca

          SHA512

          275ca364701f707af43d0ea3cd617bd44caed8c768dcbd35c1569b403feacb553e02ed28d6d2da0a0b71a09098136b18e15fa900390261e4f1aeb354f4c979fc

        • memory/1124-83-0x0000022DDCF90000-0x0000022DDCF91000-memory.dmp

          Filesize

          4KB

        • memory/1124-88-0x0000022DDCF90000-0x0000022DDCF91000-memory.dmp

          Filesize

          4KB

        • memory/1124-89-0x0000022DDCF90000-0x0000022DDCF91000-memory.dmp

          Filesize

          4KB

        • memory/1124-90-0x0000022DDCF90000-0x0000022DDCF91000-memory.dmp

          Filesize

          4KB

        • memory/1124-91-0x0000022DDCF90000-0x0000022DDCF91000-memory.dmp

          Filesize

          4KB

        • memory/1124-92-0x0000022DDCF90000-0x0000022DDCF91000-memory.dmp

          Filesize

          4KB

        • memory/1124-93-0x0000022DDCF90000-0x0000022DDCF91000-memory.dmp

          Filesize

          4KB

        • memory/1124-94-0x0000022DDCF90000-0x0000022DDCF91000-memory.dmp

          Filesize

          4KB

        • memory/1124-84-0x0000022DDCF90000-0x0000022DDCF91000-memory.dmp

          Filesize

          4KB

        • memory/1124-82-0x0000022DDCF90000-0x0000022DDCF91000-memory.dmp

          Filesize

          4KB

        • memory/2664-80-0x00000185EC6B0000-0x00000185EC6C4000-memory.dmp

          Filesize

          80KB

        • memory/2664-81-0x00000185EC6B0000-0x00000185EC6C4000-memory.dmp

          Filesize

          80KB

        • memory/4472-29-0x000000001D370000-0x000000001D380000-memory.dmp

          Filesize

          64KB

        • memory/4472-39-0x00007FF9315C0000-0x00007FF932081000-memory.dmp

          Filesize

          10.8MB

        • memory/4472-25-0x000000001D370000-0x000000001D380000-memory.dmp

          Filesize

          64KB

        • memory/4472-31-0x00007FF472660000-0x00007FF472670000-memory.dmp

          Filesize

          64KB

        • memory/4472-32-0x000000001D370000-0x000000001D380000-memory.dmp

          Filesize

          64KB

        • memory/4472-26-0x000000001D370000-0x000000001D380000-memory.dmp

          Filesize

          64KB

        • memory/4472-24-0x00007FF9315C0000-0x00007FF932081000-memory.dmp

          Filesize

          10.8MB

        • memory/4472-27-0x000000001D370000-0x000000001D380000-memory.dmp

          Filesize

          64KB

        • memory/4472-28-0x000000001D370000-0x000000001D380000-memory.dmp

          Filesize

          64KB

        • memory/4472-30-0x000000001D370000-0x000000001D380000-memory.dmp

          Filesize

          64KB

        • memory/4472-33-0x000000001F600000-0x000000001F700000-memory.dmp

          Filesize

          1024KB

        • memory/4472-34-0x00007FF9315C0000-0x00007FF932081000-memory.dmp

          Filesize

          10.8MB

        • memory/5140-66-0x0000000180000000-0x00000001800B5000-memory.dmp

          Filesize

          724KB

        • memory/5140-63-0x000002A260000000-0x000002A260014000-memory.dmp

          Filesize

          80KB

        • memory/5140-68-0x000002A260000000-0x000002A260014000-memory.dmp

          Filesize

          80KB