Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    07-06-2023 00:59

General

  • Target

    f0a496f1fda228495881fc93abc310281f828155578324980f4fc8d01b04bcdd.exe

  • Size

    4.2MB

  • MD5

    29af0feb50a8312018b17ff0083bb107

  • SHA1

    98b07f09babe9f5e6d073827476ec98ec58ef3ea

  • SHA256

    f0a496f1fda228495881fc93abc310281f828155578324980f4fc8d01b04bcdd

  • SHA512

    6c3fc8b269f7cb4ab1c1bc68d2cdfa7c4c237e1e4ed673b00f4b794cff9121091eb5b8fecd43df1a3d0da685340b8840c0debed984058d4e62703f4437d5a871

  • SSDEEP

    98304:Ufj1qqJsKF48d0lq1tWEW7hhcbSAW+/YMXAe530ShV2WySKE:Y9a8dPCj3cbSm55002b/E

Malware Config

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba payload 16 IoCs
  • Windows security bypass 2 TTPs 7 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

  • Drops file in System32 directory 7 IoCs
  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 2 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 30 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\f0a496f1fda228495881fc93abc310281f828155578324980f4fc8d01b04bcdd.exe
    "C:\Users\Admin\AppData\Local\Temp\f0a496f1fda228495881fc93abc310281f828155578324980f4fc8d01b04bcdd.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4108
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4652
    • C:\Users\Admin\AppData\Local\Temp\f0a496f1fda228495881fc93abc310281f828155578324980f4fc8d01b04bcdd.exe
      "C:\Users\Admin\AppData\Local\Temp\f0a496f1fda228495881fc93abc310281f828155578324980f4fc8d01b04bcdd.exe"
      2⤵
      • Windows security bypass
      • Windows security modification
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4528
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:224
      • C:\Windows\System32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3468
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Modifies data under HKEY_USERS
          PID:4964
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4228
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4768
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2180
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2444
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:5040
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4980
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:5116
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4396
          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:1516
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Creates scheduled task(s)
            PID:2184

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sh4x2v1n.v11.ps1

      Filesize

      1B

      MD5

      c4ca4238a0b923820dcc509a6f75849b

      SHA1

      356a192b7913b04c54574d18c28d46e6395428ab

      SHA256

      6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

      SHA512

      4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

    • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

      Filesize

      281KB

      MD5

      d98e33b66343e7c96158444127a117f6

      SHA1

      bb716c5509a2bf345c6c1152f6e3e1452d39d50d

      SHA256

      5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

      SHA512

      705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

    • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

      Filesize

      281KB

      MD5

      d98e33b66343e7c96158444127a117f6

      SHA1

      bb716c5509a2bf345c6c1152f6e3e1452d39d50d

      SHA256

      5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

      SHA512

      705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      1c19c16e21c97ed42d5beabc93391fc5

      SHA1

      8ad83f8e0b3acf8dfbbf87931e41f0d664c4df68

      SHA256

      1bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05

      SHA512

      7d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      18KB

      MD5

      ce96a83057bdf34303a976c319df402c

      SHA1

      917eb08fff46ab16e37ebad9b426de85e5f3e112

      SHA256

      d0f02990a8cf09f92bb271592b682ec5e0af6b544be69d1f07db268aaf4b9031

      SHA512

      d2285db788b304cea1b146de0c4b32b9537ee1d8d5084a0f384404ba9f45f63f772617da899d10e23785152417c5e7ae896726f6c502f123f3d74620f003c85c

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      18KB

      MD5

      19faa79b76f3aca8daad85a0ba274a80

      SHA1

      9d1b35d2cc411072df57025ae24c333ba33f0ab3

      SHA256

      5ea601c5be995a121e7b76b9f4e8a269dda2e5f66752948bf1dd435ff93528b9

      SHA512

      546d2793a18212a41d8c3b806df13833ac154a8729d34d8f721f3d04cec2f013c6d242eabd2515e2dd3365a8a8df27e5b9fafa722c403c5bda906c46f46d85a5

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      18KB

      MD5

      1ae7d410ff69b18996789d23b063b988

      SHA1

      6958cbb4632ffd6e2803db92764ef1323b6443ab

      SHA256

      25ecbc5475b9d52095eb9f5f2f3dc099e2e95df856621ce6a336c333f681280b

      SHA512

      fec2aec9fedc0622c1af1845a152208f41d4720f6728928233bbb32e374f4eb948041f23a1b2c9a9bdfce32f11d5d123731dcae39f58b4ac1096d60bc6b16dc6

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      18KB

      MD5

      f42f81eb97ab4199b57f7bf5450e7d47

      SHA1

      84a648a583b64bac205b5b4416366c05338bfe9c

      SHA256

      8cb7f2680e3c9f553fcfcbffe252c7919db92ff9531aef1d4077362ff06ac61b

      SHA512

      c7b262381c53b44d370e5c46f9d1220f24c2f278aa96a33feaf556950199035b9a337a95f53acfc4e758707908987b609033cc6a5db64f12f7e2a9580e14442c

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      18KB

      MD5

      222f345ea2aa4206a3ed3a539a23791c

      SHA1

      0c5118da2348d425866eeb8593ebf7223a091f71

      SHA256

      1d39ff4fa3fb90511a478769b75f36b2241fedce8c22280985f24d8743875301

      SHA512

      a9cc5e37ad22a8114d1c12dd92e0547aa2d3bfc70aad57487fd801e1d0327b23b2eb0f97bafe54148fb8fbfd0d70cb9e0a9ceb0856ffe139c63f9393c0fd23b2

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      29af0feb50a8312018b17ff0083bb107

      SHA1

      98b07f09babe9f5e6d073827476ec98ec58ef3ea

      SHA256

      f0a496f1fda228495881fc93abc310281f828155578324980f4fc8d01b04bcdd

      SHA512

      6c3fc8b269f7cb4ab1c1bc68d2cdfa7c4c237e1e4ed673b00f4b794cff9121091eb5b8fecd43df1a3d0da685340b8840c0debed984058d4e62703f4437d5a871

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      29af0feb50a8312018b17ff0083bb107

      SHA1

      98b07f09babe9f5e6d073827476ec98ec58ef3ea

      SHA256

      f0a496f1fda228495881fc93abc310281f828155578324980f4fc8d01b04bcdd

      SHA512

      6c3fc8b269f7cb4ab1c1bc68d2cdfa7c4c237e1e4ed673b00f4b794cff9121091eb5b8fecd43df1a3d0da685340b8840c0debed984058d4e62703f4437d5a871

    • memory/224-421-0x0000000006780000-0x0000000006790000-memory.dmp

      Filesize

      64KB

    • memory/224-460-0x0000000006780000-0x0000000006790000-memory.dmp

      Filesize

      64KB

    • memory/224-459-0x000000007F450000-0x000000007F460000-memory.dmp

      Filesize

      64KB

    • memory/224-447-0x0000000008F80000-0x0000000009025000-memory.dmp

      Filesize

      660KB

    • memory/224-424-0x0000000007A60000-0x0000000007AAB000-memory.dmp

      Filesize

      300KB

    • memory/224-422-0x0000000006780000-0x0000000006790000-memory.dmp

      Filesize

      64KB

    • memory/224-423-0x00000000075B0000-0x0000000007900000-memory.dmp

      Filesize

      3.3MB

    • memory/2180-1663-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/2180-1895-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/2180-1890-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/2180-1401-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/2180-1889-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/2180-1896-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/2180-1892-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/2180-1893-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/2180-1894-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/2180-1891-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/2444-1185-0x000000007F9B0000-0x000000007F9C0000-memory.dmp

      Filesize

      64KB

    • memory/2444-1159-0x00000000071F0000-0x0000000007200000-memory.dmp

      Filesize

      64KB

    • memory/2444-1161-0x0000000008980000-0x00000000089CB000-memory.dmp

      Filesize

      300KB

    • memory/2444-1184-0x0000000009BA0000-0x0000000009C45000-memory.dmp

      Filesize

      660KB

    • memory/2444-1160-0x00000000071F0000-0x0000000007200000-memory.dmp

      Filesize

      64KB

    • memory/2444-1157-0x0000000008000000-0x0000000008350000-memory.dmp

      Filesize

      3.3MB

    • memory/2444-1186-0x00000000071F0000-0x0000000007200000-memory.dmp

      Filesize

      64KB

    • memory/4108-417-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/4108-266-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/4108-120-0x00000000054B0000-0x0000000005D9B000-memory.dmp

      Filesize

      8.9MB

    • memory/4228-667-0x0000000007920000-0x0000000007C70000-memory.dmp

      Filesize

      3.3MB

    • memory/4228-761-0x000000007F6D0000-0x000000007F6E0000-memory.dmp

      Filesize

      64KB

    • memory/4228-762-0x00000000048A0000-0x00000000048B0000-memory.dmp

      Filesize

      64KB

    • memory/4228-670-0x00000000048A0000-0x00000000048B0000-memory.dmp

      Filesize

      64KB

    • memory/4228-669-0x00000000048A0000-0x00000000048B0000-memory.dmp

      Filesize

      64KB

    • memory/4396-1645-0x0000000007310000-0x0000000007320000-memory.dmp

      Filesize

      64KB

    • memory/4396-1646-0x0000000007310000-0x0000000007320000-memory.dmp

      Filesize

      64KB

    • memory/4396-1711-0x0000000007310000-0x0000000007320000-memory.dmp

      Filesize

      64KB

    • memory/4396-1709-0x000000007ED00000-0x000000007ED10000-memory.dmp

      Filesize

      64KB

    • memory/4528-838-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/4528-654-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/4528-1151-0x0000000000400000-0x00000000030D0000-memory.dmp

      Filesize

      44.8MB

    • memory/4652-267-0x0000000007530000-0x0000000007540000-memory.dmp

      Filesize

      64KB

    • memory/4652-196-0x000000007F110000-0x000000007F120000-memory.dmp

      Filesize

      64KB

    • memory/4652-123-0x0000000005090000-0x00000000050C6000-memory.dmp

      Filesize

      216KB

    • memory/4652-125-0x0000000007B70000-0x0000000008198000-memory.dmp

      Filesize

      6.2MB

    • memory/4652-124-0x0000000007530000-0x0000000007540000-memory.dmp

      Filesize

      64KB

    • memory/4652-400-0x0000000007530000-0x0000000007540000-memory.dmp

      Filesize

      64KB

    • memory/4652-402-0x0000000007530000-0x0000000007540000-memory.dmp

      Filesize

      64KB

    • memory/4652-397-0x0000000007400000-0x0000000007408000-memory.dmp

      Filesize

      32KB

    • memory/4652-392-0x0000000007410000-0x000000000742A000-memory.dmp

      Filesize

      104KB

    • memory/4652-126-0x0000000007530000-0x0000000007540000-memory.dmp

      Filesize

      64KB

    • memory/4652-127-0x00000000076E0000-0x0000000007702000-memory.dmp

      Filesize

      136KB

    • memory/4652-197-0x000000000A6F0000-0x000000000A784000-memory.dmp

      Filesize

      592KB

    • memory/4652-128-0x0000000007880000-0x00000000078E6000-memory.dmp

      Filesize

      408KB

    • memory/4652-129-0x0000000007AD0000-0x0000000007B36000-memory.dmp

      Filesize

      408KB

    • memory/4652-130-0x00000000081B0000-0x0000000008500000-memory.dmp

      Filesize

      3.3MB

    • memory/4652-131-0x0000000008560000-0x000000000857C000-memory.dmp

      Filesize

      112KB

    • memory/4652-195-0x000000000A520000-0x000000000A5C5000-memory.dmp

      Filesize

      660KB

    • memory/4652-190-0x000000000A4C0000-0x000000000A4DE000-memory.dmp

      Filesize

      120KB

    • memory/4652-189-0x000000000A4E0000-0x000000000A513000-memory.dmp

      Filesize

      204KB

    • memory/4652-182-0x00000000096D0000-0x0000000009746000-memory.dmp

      Filesize

      472KB

    • memory/4652-151-0x0000000009610000-0x000000000964C000-memory.dmp

      Filesize

      240KB

    • memory/4652-132-0x0000000008AF0000-0x0000000008B3B000-memory.dmp

      Filesize

      300KB

    • memory/4768-937-0x0000000005380000-0x0000000005390000-memory.dmp

      Filesize

      64KB

    • memory/4768-910-0x0000000005380000-0x0000000005390000-memory.dmp

      Filesize

      64KB

    • memory/4768-914-0x0000000005380000-0x0000000005390000-memory.dmp

      Filesize

      64KB

    • memory/4768-935-0x000000007F5C0000-0x000000007F5D0000-memory.dmp

      Filesize

      64KB

    • memory/5116-1431-0x000000007EE50000-0x000000007EE60000-memory.dmp

      Filesize

      64KB

    • memory/5116-1428-0x00000000093D0000-0x0000000009475000-memory.dmp

      Filesize

      660KB

    • memory/5116-1405-0x0000000007ED0000-0x0000000007F1B000-memory.dmp

      Filesize

      300KB

    • memory/5116-1403-0x0000000007A30000-0x0000000007D80000-memory.dmp

      Filesize

      3.3MB

    • memory/5116-1402-0x0000000006A40000-0x0000000006A50000-memory.dmp

      Filesize

      64KB