Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-06-2023 12:50

General

  • Target

    6ced1dc3a8171332006da8976aba5fb4052f450a02f67de243fac2361a009b97.exe

  • Size

    4.2MB

  • MD5

    147308c25da30689734d6ae427671a0e

  • SHA1

    74787f98f301a726c0c407d91dc72c7215d6946a

  • SHA256

    6ced1dc3a8171332006da8976aba5fb4052f450a02f67de243fac2361a009b97

  • SHA512

    7c08733f754b3c5e3ff86f9dbaec89edea06aa4e2b69295fd83ee372ff38079318ad39ff12fff73a278f5acbedde8f19710c7148b349101fb49ba80158c317dc

  • SSDEEP

    98304:N4Oukmwozu5N1sjvc6C5HzAFpDV4v2Gff887WFFSEVpe1l6UqT5uNjp:0xw0u5Xsj06C5HzAFtV4vjftWfSDTd4k

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 16 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Executes dropped EXE 2 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\6ced1dc3a8171332006da8976aba5fb4052f450a02f67de243fac2361a009b97.exe
    "C:\Users\Admin\AppData\Local\Temp\6ced1dc3a8171332006da8976aba5fb4052f450a02f67de243fac2361a009b97.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1192
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3480
    • C:\Users\Admin\AppData\Local\Temp\6ced1dc3a8171332006da8976aba5fb4052f450a02f67de243fac2361a009b97.exe
      "C:\Users\Admin\AppData\Local\Temp\6ced1dc3a8171332006da8976aba5fb4052f450a02f67de243fac2361a009b97.exe"
      2⤵
      • 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:2244
      • 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:2848
      • 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:4032
        • 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
          PID:2612
      • 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:3256
      • 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:4692
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4644
        • 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:3436
        • 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:1208
        • 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:3948
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3720
          • 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:4648
          • 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:568
          • 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:4700

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_djfcpx02.a5e.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • 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

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

      19KB

      MD5

      24ed1ed26646f0e918f526b1c91a8d0d

      SHA1

      6e5cb73cbdf21a3847e13caabb46f95aef6b36cd

      SHA256

      5befd0ff88823433f6794980cdcc048eeb76b0a62d2a2c0d2a38f0be08e86924

      SHA512

      93469bc13155d8c17061e084047294a7b8ee4e4b0884cd99d411195f1b4abf33b68da7a0a0cea5a57606cfa31aacc86dcdde15ca038dcf7183e10a117bbbaba6

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

      19KB

      MD5

      f5149eab872ee463fbac0fd928b18930

      SHA1

      54608df725da92f12b220b7463199218e4cab17c

      SHA256

      30fa240f02017f31c6b24fb693709b3640aace9a57fc610cebd765d0a7863f3f

      SHA512

      e801a942852343bb39fdd50251e76c03e81f0c8553887025972291020b9e2c1342f6c4cab7817155decbf8407e5baed5c0ad826cf3358f1f4cebd5c35c7782d8

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

      19KB

      MD5

      9160eb9aa28b68ea47e56aa389668a9e

      SHA1

      d26b861c6014ac0755995cb7b60e5646be54c164

      SHA256

      08396fd75b1691c1fbe2fa9c06d6aff4e19a5729888baa3e980de9d20367a52a

      SHA512

      ce2e28e99e7d62c5287e341cd07e2f879f1ee3ed3e790e296fb9fdce2d13ecc8c0864e640bd9152425e75fbf9eb870953890318a8320e28365689a8170d2c1f9

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

      19KB

      MD5

      3f39593b5550585e3153e8fe9d862802

      SHA1

      4460828b3086e2e37d3b242ecb60fd8d4e04a60b

      SHA256

      d0068c8692301567fca357ed1f2caa927eeab19f498951c30a7d25e67ce99f3d

      SHA512

      a71dd8e9fb221190bdc2bf96179ad594e9d84d3b960a8af640b1afef7cd8c7ff33d43bb1405b5b8f6c9b4e9f2b420a6d4513527a1b2841ae6e7f065e4fe971ac

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

      19KB

      MD5

      f19881d077fbd1d69174be5826962358

      SHA1

      f53406c818979fc5f575e0c7ae91ef60f72b4c77

      SHA256

      635866fede9fd1f1beb6a734743587b212f119c1aa87f963e0ff7abdb1646ecd

      SHA512

      cddd5f0c34c3e8b294aa545d0bd13311f94285db906e2d29bb4ae43711d9f1d55bcaa24ea8c61d22187dcdd59f656bc107b77b9b6a70d8e47d7f002105136743

    • C:\Windows\rss\csrss.exe
      Filesize

      4.2MB

      MD5

      147308c25da30689734d6ae427671a0e

      SHA1

      74787f98f301a726c0c407d91dc72c7215d6946a

      SHA256

      6ced1dc3a8171332006da8976aba5fb4052f450a02f67de243fac2361a009b97

      SHA512

      7c08733f754b3c5e3ff86f9dbaec89edea06aa4e2b69295fd83ee372ff38079318ad39ff12fff73a278f5acbedde8f19710c7148b349101fb49ba80158c317dc

    • C:\Windows\rss\csrss.exe
      Filesize

      4.2MB

      MD5

      147308c25da30689734d6ae427671a0e

      SHA1

      74787f98f301a726c0c407d91dc72c7215d6946a

      SHA256

      6ced1dc3a8171332006da8976aba5fb4052f450a02f67de243fac2361a009b97

      SHA512

      7c08733f754b3c5e3ff86f9dbaec89edea06aa4e2b69295fd83ee372ff38079318ad39ff12fff73a278f5acbedde8f19710c7148b349101fb49ba80158c317dc

    • memory/1192-179-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/1192-157-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/1192-134-0x0000000005260000-0x0000000005B4B000-memory.dmp
      Filesize

      8.9MB

    • memory/2244-266-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/2244-232-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/2848-204-0x000000007F770000-0x000000007F780000-memory.dmp
      Filesize

      64KB

    • memory/2848-194-0x0000000070DA0000-0x00000000710F4000-memory.dmp
      Filesize

      3.3MB

    • memory/2848-193-0x0000000070600000-0x000000007064C000-memory.dmp
      Filesize

      304KB

    • memory/2848-192-0x0000000004BB0000-0x0000000004BC0000-memory.dmp
      Filesize

      64KB

    • memory/2848-191-0x0000000004BB0000-0x0000000004BC0000-memory.dmp
      Filesize

      64KB

    • memory/2848-190-0x0000000004BB0000-0x0000000004BC0000-memory.dmp
      Filesize

      64KB

    • memory/3256-221-0x0000000070600000-0x000000007064C000-memory.dmp
      Filesize

      304KB

    • memory/3256-220-0x0000000004BC0000-0x0000000004BD0000-memory.dmp
      Filesize

      64KB

    • memory/3256-219-0x0000000004BC0000-0x0000000004BD0000-memory.dmp
      Filesize

      64KB

    • memory/3256-218-0x0000000004BC0000-0x0000000004BD0000-memory.dmp
      Filesize

      64KB

    • memory/3256-222-0x0000000070DC0000-0x0000000071114000-memory.dmp
      Filesize

      3.3MB

    • memory/3256-233-0x000000007F750000-0x000000007F760000-memory.dmp
      Filesize

      64KB

    • memory/3436-278-0x0000000004B20000-0x0000000004B30000-memory.dmp
      Filesize

      64KB

    • memory/3436-290-0x0000000004B20000-0x0000000004B30000-memory.dmp
      Filesize

      64KB

    • memory/3436-280-0x0000000070D00000-0x0000000071054000-memory.dmp
      Filesize

      3.3MB

    • memory/3436-267-0x0000000004B20000-0x0000000004B30000-memory.dmp
      Filesize

      64KB

    • memory/3436-279-0x0000000070560000-0x00000000705AC000-memory.dmp
      Filesize

      304KB

    • memory/3436-291-0x000000007FDD0000-0x000000007FDE0000-memory.dmp
      Filesize

      64KB

    • memory/3480-172-0x0000000007B80000-0x0000000007B8A000-memory.dmp
      Filesize

      40KB

    • memory/3480-138-0x0000000002EA0000-0x0000000002EB0000-memory.dmp
      Filesize

      64KB

    • memory/3480-175-0x0000000007CF0000-0x0000000007D0A000-memory.dmp
      Filesize

      104KB

    • memory/3480-174-0x0000000007BF0000-0x0000000007BFE000-memory.dmp
      Filesize

      56KB

    • memory/3480-173-0x0000000007C50000-0x0000000007CE6000-memory.dmp
      Filesize

      600KB

    • memory/3480-171-0x0000000007A20000-0x0000000007A3E000-memory.dmp
      Filesize

      120KB

    • memory/3480-161-0x000000007F2E0000-0x000000007F2F0000-memory.dmp
      Filesize

      64KB

    • memory/3480-160-0x0000000070680000-0x00000000709D4000-memory.dmp
      Filesize

      3.3MB

    • memory/3480-159-0x0000000070500000-0x000000007054C000-memory.dmp
      Filesize

      304KB

    • memory/3480-135-0x0000000002F30000-0x0000000002F66000-memory.dmp
      Filesize

      216KB

    • memory/3480-176-0x0000000007C30000-0x0000000007C38000-memory.dmp
      Filesize

      32KB

    • memory/3480-140-0x0000000005DF0000-0x0000000005E56000-memory.dmp
      Filesize

      408KB

    • memory/3480-136-0x0000000005750000-0x0000000005D78000-memory.dmp
      Filesize

      6.2MB

    • memory/3480-137-0x0000000002EA0000-0x0000000002EB0000-memory.dmp
      Filesize

      64KB

    • memory/3480-139-0x0000000005640000-0x0000000005662000-memory.dmp
      Filesize

      136KB

    • memory/3480-158-0x0000000007A40000-0x0000000007A72000-memory.dmp
      Filesize

      200KB

    • memory/3480-156-0x0000000007890000-0x00000000078AA000-memory.dmp
      Filesize

      104KB

    • memory/3480-155-0x0000000007EF0000-0x000000000856A000-memory.dmp
      Filesize

      6.5MB

    • memory/3480-154-0x0000000002EA0000-0x0000000002EB0000-memory.dmp
      Filesize

      64KB

    • memory/3480-153-0x00000000077F0000-0x0000000007866000-memory.dmp
      Filesize

      472KB

    • memory/3480-152-0x0000000007620000-0x0000000007664000-memory.dmp
      Filesize

      272KB

    • memory/3480-151-0x00000000064F0000-0x000000000650E000-memory.dmp
      Filesize

      120KB

    • memory/3480-141-0x0000000005ED0000-0x0000000005F36000-memory.dmp
      Filesize

      408KB

    • memory/3948-305-0x0000000070480000-0x00000000704CC000-memory.dmp
      Filesize

      304KB

    • memory/3948-306-0x0000000070620000-0x0000000070974000-memory.dmp
      Filesize

      3.3MB

    • memory/3948-318-0x000000007EE60000-0x000000007EE70000-memory.dmp
      Filesize

      64KB

    • memory/3948-303-0x0000000004FF0000-0x0000000005000000-memory.dmp
      Filesize

      64KB

    • memory/3948-304-0x0000000004FF0000-0x0000000005000000-memory.dmp
      Filesize

      64KB

    • memory/3948-317-0x0000000004FF0000-0x0000000005000000-memory.dmp
      Filesize

      64KB

    • memory/4644-364-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4644-307-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4644-360-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4644-362-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4644-358-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4644-356-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4644-366-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4644-354-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4644-368-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4644-370-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4644-351-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4648-334-0x0000000070480000-0x00000000704CC000-memory.dmp
      Filesize

      304KB

    • memory/4648-345-0x000000007F200000-0x000000007F210000-memory.dmp
      Filesize

      64KB

    • memory/4648-335-0x0000000070600000-0x0000000070954000-memory.dmp
      Filesize

      3.3MB

    • memory/4648-333-0x0000000004980000-0x0000000004990000-memory.dmp
      Filesize

      64KB

    • memory/4648-331-0x0000000004980000-0x0000000004990000-memory.dmp
      Filesize

      64KB

    • memory/4648-330-0x0000000004980000-0x0000000004990000-memory.dmp
      Filesize

      64KB

    • memory/4692-259-0x000000007F400000-0x000000007F410000-memory.dmp
      Filesize

      64KB

    • memory/4692-249-0x0000000070780000-0x0000000070AD4000-memory.dmp
      Filesize

      3.3MB

    • memory/4692-248-0x0000000070600000-0x000000007064C000-memory.dmp
      Filesize

      304KB

    • memory/4692-247-0x0000000004710000-0x0000000004720000-memory.dmp
      Filesize

      64KB

    • memory/4692-246-0x0000000004710000-0x0000000004720000-memory.dmp
      Filesize

      64KB

    • memory/4692-245-0x0000000004710000-0x0000000004720000-memory.dmp
      Filesize

      64KB