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Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/07/2023, 00:47

General

  • Target

    c858de05299d4643df3602137d0240d031d01109de01dd5e87ce95990ec6977d.exe

  • Size

    4.2MB

  • MD5

    e8647d1092c8ee7c721c52a85cbaa69b

  • SHA1

    5b6ddef8fbed5e8e8c4af2bb5e1900e6c62c52b7

  • SHA256

    c858de05299d4643df3602137d0240d031d01109de01dd5e87ce95990ec6977d

  • SHA512

    192b4dc1c0f88f9d7c44c2f6a7b52dc4e312aca0a143f95f8519438a0d371532e5ce38b552d13982588a061fc6c78ca7f1545222d4f096cf301afd25ac0a88fe

  • SSDEEP

    98304:+DFie9VH8jZZET08mLXJRMokEW34xHbYw8q5UC7b6:WiqZ8408mL+EWohbj8sUou

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 20 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\c858de05299d4643df3602137d0240d031d01109de01dd5e87ce95990ec6977d.exe
    "C:\Users\Admin\AppData\Local\Temp\c858de05299d4643df3602137d0240d031d01109de01dd5e87ce95990ec6977d.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3348
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3600
    • C:\Users\Admin\AppData\Local\Temp\c858de05299d4643df3602137d0240d031d01109de01dd5e87ce95990ec6977d.exe
      "C:\Users\Admin\AppData\Local\Temp\c858de05299d4643df3602137d0240d031d01109de01dd5e87ce95990ec6977d.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:3332
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1288
      • 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:3120
        • 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:2760
      • 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:3312
      • 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:2116
      • 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:4740
        • 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:4144
        • 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:4560
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          PID:1288
        • 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:2100
        • 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:3932
        • 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:2500
        • 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:1396

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0xce1gjk.ucz.psm1

    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

    e8086f3c09acc1210f0fd34263e8a591

    SHA1

    92afa52f054054fe3069916157c2ca33fbd74536

    SHA256

    084b2e7f4d33cc7216987d96b4b10b3205dd2f0c319729d4b7770da66d7ab171

    SHA512

    e4fc698b7c36a17fad330379b2c1374bbfaa96f76cf989f99654f2c8c60acb45feb38326aa877727e519886c67069d78bd26a34f7f7b134b6a921d66b69e8252

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

    Filesize

    19KB

    MD5

    f7ca8a70117b4e20fb578b4cae88b3c0

    SHA1

    28a1f876fa420f2e6e80920a0cb80c695e68d1ae

    SHA256

    24cc75cf4728679ad45f1eece6bf4072d72d7efb672b2e4bcf4dc2760cd78117

    SHA512

    d2a6492ca8ce6affb14f10ca740a6f5c72ef7da4b845498449e9d7464a6cb4a7e9737e3e207a8353ed4f9d79e52608c71140d7a235c4944cb7baae54e50a09b2

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

    Filesize

    19KB

    MD5

    c26d0d5db6b1d0fc45b185fd2b4d0dd9

    SHA1

    fa0a0710503107ae32aac6aa97ab79950cb33795

    SHA256

    c4f285467b8ba00f189ef8c8608efa87e0ddb7b89797533832e8f92ffa58bdd7

    SHA512

    5e0c9bc9f7d215168656af236902bba6f512209f21cf6293eb34fcbcd238a33bc0b3f00f3d6dada7428e37cdb64b7d9ac617541d191d44a3eeaeb9d75349b5c0

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

    Filesize

    19KB

    MD5

    fbcfa70a562e068306f717ac71afc415

    SHA1

    2dac27866076ad3b23c0de5b50de01fa2f5af79e

    SHA256

    32b1ab67e7334a20eebdacce30c86ea85dde8d625d65d025f5136467b6a95e30

    SHA512

    a52344c727d4e5db08760e74f44e889bb1da1638d9a6560ff6a5610b3fb9480578b6871f6caf69e4a7ce1a87ed2d13f12adf2c7f9b4ecbfc2b2ad8fc69197f22

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

    Filesize

    19KB

    MD5

    967fb84cdbd4f50aac9473c457b1d308

    SHA1

    8db3d1f5b049072dd209a3eb9c8a525e15046d5c

    SHA256

    4b8a27aef3dfc99821b6042a6e67173cf7a52c2df5a2a8690b89ed5db50c43bc

    SHA512

    1b816024938f29fda90d37ea86b085bb929b20ddd1b398da1d4d262c1dbb7b331c1c4fc9e1f0b0ce466702ff29092516d1d741ef77394005a366c4fa31ac30d1

  • C:\Windows\rss\csrss.exe

    Filesize

    4.2MB

    MD5

    e8647d1092c8ee7c721c52a85cbaa69b

    SHA1

    5b6ddef8fbed5e8e8c4af2bb5e1900e6c62c52b7

    SHA256

    c858de05299d4643df3602137d0240d031d01109de01dd5e87ce95990ec6977d

    SHA512

    192b4dc1c0f88f9d7c44c2f6a7b52dc4e312aca0a143f95f8519438a0d371532e5ce38b552d13982588a061fc6c78ca7f1545222d4f096cf301afd25ac0a88fe

  • C:\Windows\rss\csrss.exe

    Filesize

    4.2MB

    MD5

    e8647d1092c8ee7c721c52a85cbaa69b

    SHA1

    5b6ddef8fbed5e8e8c4af2bb5e1900e6c62c52b7

    SHA256

    c858de05299d4643df3602137d0240d031d01109de01dd5e87ce95990ec6977d

    SHA512

    192b4dc1c0f88f9d7c44c2f6a7b52dc4e312aca0a143f95f8519438a0d371532e5ce38b552d13982588a061fc6c78ca7f1545222d4f096cf301afd25ac0a88fe

  • memory/1288-218-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/1288-221-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/1288-207-0x0000000070410000-0x0000000070764000-memory.dmp

    Filesize

    3.3MB

  • memory/1288-206-0x0000000070290000-0x00000000702DC000-memory.dmp

    Filesize

    304KB

  • memory/1288-204-0x0000000002A70000-0x0000000002A80000-memory.dmp

    Filesize

    64KB

  • memory/1288-193-0x0000000002A70000-0x0000000002A80000-memory.dmp

    Filesize

    64KB

  • memory/1288-192-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/2116-279-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/2116-268-0x0000000070A10000-0x0000000070D64000-memory.dmp

    Filesize

    3.3MB

  • memory/2116-267-0x0000000070290000-0x00000000702DC000-memory.dmp

    Filesize

    304KB

  • memory/2116-266-0x000000007F900000-0x000000007F910000-memory.dmp

    Filesize

    64KB

  • memory/2116-254-0x0000000002490000-0x00000000024A0000-memory.dmp

    Filesize

    64KB

  • memory/2116-253-0x0000000002490000-0x00000000024A0000-memory.dmp

    Filesize

    64KB

  • memory/2116-252-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/3312-238-0x00000000047C0000-0x00000000047D0000-memory.dmp

    Filesize

    64KB

  • memory/3312-224-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/3312-239-0x0000000070290000-0x00000000702DC000-memory.dmp

    Filesize

    304KB

  • memory/3312-251-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/3312-240-0x0000000070430000-0x0000000070784000-memory.dmp

    Filesize

    3.3MB

  • memory/3312-226-0x00000000047C0000-0x00000000047D0000-memory.dmp

    Filesize

    64KB

  • memory/3312-225-0x00000000047C0000-0x00000000047D0000-memory.dmp

    Filesize

    64KB

  • memory/3332-191-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/3332-205-0x0000000004ED0000-0x00000000052CA000-memory.dmp

    Filesize

    4.0MB

  • memory/3332-217-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/3332-190-0x0000000004ED0000-0x00000000052CA000-memory.dmp

    Filesize

    4.0MB

  • memory/3332-237-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/3332-284-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/3348-203-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/3348-185-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/3348-135-0x00000000051B0000-0x0000000005A9B000-memory.dmp

    Filesize

    8.9MB

  • memory/3348-136-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/3348-156-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/3348-155-0x00000000051B0000-0x0000000005A9B000-memory.dmp

    Filesize

    8.9MB

  • memory/3348-153-0x0000000004DA0000-0x00000000051A8000-memory.dmp

    Filesize

    4.0MB

  • memory/3348-134-0x0000000004DA0000-0x00000000051A8000-memory.dmp

    Filesize

    4.0MB

  • memory/3600-183-0x00000000074B0000-0x00000000074CA000-memory.dmp

    Filesize

    104KB

  • memory/3600-160-0x0000000006FC0000-0x0000000007036000-memory.dmp

    Filesize

    472KB

  • memory/3600-184-0x0000000007490000-0x0000000007498000-memory.dmp

    Filesize

    32KB

  • memory/3600-154-0x0000000005CA0000-0x0000000005CBE000-memory.dmp

    Filesize

    120KB

  • memory/3600-182-0x00000000073B0000-0x00000000073BE000-memory.dmp

    Filesize

    56KB

  • memory/3600-148-0x0000000005610000-0x0000000005676000-memory.dmp

    Filesize

    408KB

  • memory/3600-181-0x0000000002750000-0x0000000002760000-memory.dmp

    Filesize

    64KB

  • memory/3600-180-0x00000000073F0000-0x0000000007486000-memory.dmp

    Filesize

    600KB

  • memory/3600-179-0x0000000002750000-0x0000000002760000-memory.dmp

    Filesize

    64KB

  • memory/3600-178-0x0000000007330000-0x000000000733A000-memory.dmp

    Filesize

    40KB

  • memory/3600-177-0x00000000071E0000-0x00000000071FE000-memory.dmp

    Filesize

    120KB

  • memory/3600-167-0x0000000070410000-0x0000000070764000-memory.dmp

    Filesize

    3.3MB

  • memory/3600-166-0x0000000070290000-0x00000000702DC000-memory.dmp

    Filesize

    304KB

  • memory/3600-165-0x0000000007200000-0x0000000007232000-memory.dmp

    Filesize

    200KB

  • memory/3600-142-0x00000000054B0000-0x0000000005516000-memory.dmp

    Filesize

    408KB

  • memory/3600-164-0x000000007F010000-0x000000007F020000-memory.dmp

    Filesize

    64KB

  • memory/3600-163-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/3600-162-0x0000000007040000-0x000000000705A000-memory.dmp

    Filesize

    104KB

  • memory/3600-161-0x00000000076C0000-0x0000000007D3A000-memory.dmp

    Filesize

    6.5MB

  • memory/3600-141-0x0000000004DB0000-0x0000000004DD2000-memory.dmp

    Filesize

    136KB

  • memory/3600-140-0x0000000004E10000-0x0000000005438000-memory.dmp

    Filesize

    6.2MB

  • memory/3600-188-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/3600-158-0x0000000006210000-0x0000000006254000-memory.dmp

    Filesize

    272KB

  • memory/3600-159-0x0000000002750000-0x0000000002760000-memory.dmp

    Filesize

    64KB

  • memory/3600-137-0x0000000002670000-0x00000000026A6000-memory.dmp

    Filesize

    216KB

  • memory/3600-138-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/3600-139-0x0000000002750000-0x0000000002760000-memory.dmp

    Filesize

    64KB

  • memory/4144-290-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4144-303-0x0000000004610000-0x0000000004620000-memory.dmp

    Filesize

    64KB

  • memory/4144-304-0x0000000070290000-0x00000000702DC000-memory.dmp

    Filesize

    304KB

  • memory/4144-305-0x0000000070A10000-0x0000000070D64000-memory.dmp

    Filesize

    3.3MB

  • memory/4144-291-0x0000000004610000-0x0000000004620000-memory.dmp

    Filesize

    64KB

  • memory/4740-287-0x0000000005100000-0x0000000005500000-memory.dmp

    Filesize

    4.0MB

  • memory/4740-360-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/4740-288-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/4740-302-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/4740-381-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/4740-383-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/4740-385-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/4740-387-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/4740-389-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/4740-391-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB

  • memory/4740-393-0x0000000000400000-0x0000000002F32000-memory.dmp

    Filesize

    43.2MB