Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-04-2024 01:08

General

  • Target

    737bba8d3e9ad3e1526bf5949962af3b37107c80c767c473a820999eae507fbc.exe

  • Size

    2.3MB

  • MD5

    2784277bd68152abf75c6c6d59fab7af

  • SHA1

    e1d047c97e3bdfe273b215b42eccde32ca2ca63f

  • SHA256

    737bba8d3e9ad3e1526bf5949962af3b37107c80c767c473a820999eae507fbc

  • SHA512

    e05b8251c9f6c59c7901d72c58f5b8c35dc376068368e67f81ee79da4287ddfc25c6ca5893d87944ed21c592bdd62f57d40a9f78c9af56762f33b010dd10b62c

  • SSDEEP

    49152:T2Q8G4mSmM8sik/AJ+/GRfzlW+oCZBNKoiYNsVjGMFWm02qG6zSo2:T2VmT8B4JAGllW+DBNdtN811

Malware Config

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Detect Umbral payload 2 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • AgentTesla payload 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Modifies Windows Firewall 2 TTPs 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\737bba8d3e9ad3e1526bf5949962af3b37107c80c767c473a820999eae507fbc.exe
    "C:\Users\Admin\AppData\Local\Temp\737bba8d3e9ad3e1526bf5949962af3b37107c80c767c473a820999eae507fbc.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:208
    • C:\Users\Admin\AppData\Local\Temp\Umbral.exe
      "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4736
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1132
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Umbral.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4248
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3236
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4332
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2172
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1068
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:2484
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:4692
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1624
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:4756
        • C:\Users\Admin\AppData\Local\Temp\svchost.exe
          "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of WriteProcessMemory
          PID:1912
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
            3⤵
            • Modifies Windows Firewall
            PID:1020
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
            3⤵
            • Modifies Windows Firewall
            PID:1488
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
            3⤵
            • Modifies Windows Firewall
            PID:216
        • C:\Users\Admin\AppData\Local\Temp\ANDYzz-protected.exe
          "C:\Users\Admin\AppData\Local\Temp\ANDYzz-protected.exe"
          2⤵
          • Executes dropped EXE
          • Enumerates system info in registry
          • Suspicious use of AdjustPrivilegeToken
          PID:4456

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        d85ba6ff808d9e5444a4b369f5bc2730

        SHA1

        31aa9d96590fff6981b315e0b391b575e4c0804a

        SHA256

        84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

        SHA512

        8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        948B

        MD5

        966914e2e771de7a4a57a95b6ecfa8a9

        SHA1

        7a32282fd51dd032967ed4d9a40cc57e265aeff2

        SHA256

        98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba

        SHA512

        dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        1KB

        MD5

        d3235ed022a42ec4338123ab87144afa

        SHA1

        5058608bc0deb720a585a2304a8f7cf63a50a315

        SHA256

        10663f5a1cb0afe5578f61ebaae2aafb363544e47b48521f9c23be9e6e431b27

        SHA512

        236761b7c68feca8bd62cba90cff0b25fac5613837aaa5d29ae823ace8b06a2057553cf7e72b11ccc59b6c289e471ca1bbac1a880aef5e2868875371a17c1abf

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        1KB

        MD5

        107102102e02e48f37f5318c7e113c43

        SHA1

        7fb10fc65c85fb4c050309f0872bc9389dcccc0d

        SHA256

        3c3f49948c1e832c86b959c32bc288ddedb500534b74df082f8967fc7f9976f7

        SHA512

        b108a47d7c3dd154cad44362b6cd557b7064096383d100e6cd64bfb19c4e2ad878ed4ee800776322ad3cc4bb721fb675b0ecab8f5661024188fa3aa19561841b

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        d28a889fd956d5cb3accfbaf1143eb6f

        SHA1

        157ba54b365341f8ff06707d996b3635da8446f7

        SHA256

        21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

        SHA512

        0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

      • C:\Users\Admin\AppData\Local\Temp\ANDYzz-protected.exe

        Filesize

        2.5MB

        MD5

        33eb68c8c4fc521d64ed82219cdb19f2

        SHA1

        2d114152924ea141df11082d6f337bf7e9a81035

        SHA256

        24251c6105a1f345dbb16860c2405647127b8b03e03b0d0c1c61f896a6c7b7b0

        SHA512

        0b5090dbb977ac8b79b01a3d33c26592a7b98bd9461212f70fa3c092b359c93ad22c1c4bace3aacc22c74884b154989be2a724edf74efd20ef80dee78ac75f8a

      • C:\Users\Admin\AppData\Local\Temp\Umbral.exe

        Filesize

        231KB

        MD5

        774fa31e76af56bbad395e1e3ac68721

        SHA1

        fe65c14179b2cf0cbd44758578cf878d7dcef879

        SHA256

        944c19f992f5301ac8936dcdbd4efb59fbc4f47dcdcc39a77b5e87b4effd27f4

        SHA512

        529ba2a356bf4fb3d4820c0da1dca58d1583ae37188e61300190d543144140f0f73072a9faf195dc214a13ac8c365354e2ab212a24646a332085481f47de8c7e

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ycayvrgr.wyf.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\svchost.exe

        Filesize

        93KB

        MD5

        3071f4f7b11a6bf6c623e83eed6d2418

        SHA1

        37fd78d1296659109f2c94c9c750b5a98d158f11

        SHA256

        508bcd1a6b7ed82e60873eb1b035647ec9f8f9facdf65d6d6a73b8ef37d5bb9e

        SHA512

        e6bc32a3c955f80a9a54c261722f49032c1f32c50f98f0792af85769b87b4e9ef16ee4fd4f1e9e0a991e6f9311d54db99737401e6b5f32b503531e6859ad45b8

      • memory/208-38-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/208-0-0x00000000003A0000-0x00000000005FA000-memory.dmp

        Filesize

        2.4MB

      • memory/208-2-0x000000001B2B0000-0x000000001B2C0000-memory.dmp

        Filesize

        64KB

      • memory/208-1-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/1624-140-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/1624-152-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/1912-139-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/1912-131-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/1912-42-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/1912-43-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/2172-115-0x000001B35F370000-0x000001B35F380000-memory.dmp

        Filesize

        64KB

      • memory/2172-114-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/2172-130-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/2172-128-0x000001B35F370000-0x000001B35F380000-memory.dmp

        Filesize

        64KB

      • memory/3236-77-0x000002C1B0A80000-0x000002C1B0A90000-memory.dmp

        Filesize

        64KB

      • memory/3236-79-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/3236-65-0x000002C1B0A80000-0x000002C1B0A90000-memory.dmp

        Filesize

        64KB

      • memory/3236-64-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/3236-66-0x000002C1B0A80000-0x000002C1B0A90000-memory.dmp

        Filesize

        64KB

      • memory/4248-47-0x000002BA6E100000-0x000002BA6E110000-memory.dmp

        Filesize

        64KB

      • memory/4248-54-0x000002BA6E9F0000-0x000002BA6EA12000-memory.dmp

        Filesize

        136KB

      • memory/4248-62-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/4248-46-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/4248-48-0x000002BA6E100000-0x000002BA6E110000-memory.dmp

        Filesize

        64KB

      • memory/4332-110-0x00000269CA250000-0x00000269CA260000-memory.dmp

        Filesize

        64KB

      • memory/4332-97-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/4332-104-0x00000269CA250000-0x00000269CA260000-memory.dmp

        Filesize

        64KB

      • memory/4332-98-0x00000269CA250000-0x00000269CA260000-memory.dmp

        Filesize

        64KB

      • memory/4332-112-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/4456-39-0x0000017557420000-0x0000017557432000-memory.dmp

        Filesize

        72KB

      • memory/4456-41-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/4456-158-0x0000017557460000-0x0000017557470000-memory.dmp

        Filesize

        64KB

      • memory/4456-35-0x0000017555620000-0x000001755589E000-memory.dmp

        Filesize

        2.5MB

      • memory/4456-138-0x0000017557460000-0x0000017557470000-memory.dmp

        Filesize

        64KB

      • memory/4456-40-0x000001756FE40000-0x0000017570054000-memory.dmp

        Filesize

        2.1MB

      • memory/4456-45-0x0000017557460000-0x0000017557470000-memory.dmp

        Filesize

        64KB

      • memory/4456-127-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/4456-59-0x0000017573770000-0x00000175737AC000-memory.dmp

        Filesize

        240KB

      • memory/4736-132-0x0000020E46960000-0x0000020E46970000-memory.dmp

        Filesize

        64KB

      • memory/4736-113-0x0000020E46960000-0x0000020E46970000-memory.dmp

        Filesize

        64KB

      • memory/4736-126-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/4736-135-0x0000020E46D50000-0x0000020E46D62000-memory.dmp

        Filesize

        72KB

      • memory/4736-134-0x0000020E46C40000-0x0000020E46C4A000-memory.dmp

        Filesize

        40KB

      • memory/4736-82-0x0000020E46C80000-0x0000020E46CF6000-memory.dmp

        Filesize

        472KB

      • memory/4736-37-0x0000020E46960000-0x0000020E46970000-memory.dmp

        Filesize

        64KB

      • memory/4736-36-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/4736-83-0x0000020E46D00000-0x0000020E46D50000-memory.dmp

        Filesize

        320KB

      • memory/4736-20-0x0000020E2C550000-0x0000020E2C590000-memory.dmp

        Filesize

        256KB

      • memory/4736-157-0x00007FFB1EAC0000-0x00007FFB1F581000-memory.dmp

        Filesize

        10.8MB

      • memory/4736-84-0x0000020E46C20000-0x0000020E46C3E000-memory.dmp

        Filesize

        120KB