Overview

overview

10

Static

static

3

f3998e135f...18.exe

windows7-x64

10

f3998e135f...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-04-2024 13:33

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    f3998e135f5e6bbbc07644ca7a0f0c5a_JaffaCakes118.exe

  • Size

    4.5MB

  • MD5

    f3998e135f5e6bbbc07644ca7a0f0c5a

  • SHA1

    0a1353bdbab089ce09342ffdc489166dd1bc831f

  • SHA256

    d80d8aa4f24bd52900e4f60d1e979fbd34157ab1ffe3777f52e72ce4a2d5eb0e

  • SHA512

    eeea7f02b9f0896778fd75f7cc8d8a55ad94b960e174cf19403d2f968e912203011156789ef093538a1f6e99ef7ed924e02f1b3d0180236e6b71291ed15da934

  • SSDEEP

    98304:8xHuDUUQTo5+nZ6POTvoxA6xblv9aCcENrOYrizYhUCaLTH6aVmpO:4wgTo5+oPOTv0A6TEkNqyUYCCeSpO

Score
10/10
gluptebametasploitbackdoordiscoverydropperevasionloaderpersistencerootkittrojan

Malware Config

Extracted

Family

metasploit

Version

windows/single_exec

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 22 IoCs
  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

    trojanbackdoormetasploit
  • Modifies Windows Firewall 2 TTPs 1 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
  • 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 1 IoCs

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

    persistence
  • GoLang User-Agent 4 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 9 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\f3998e135f5e6bbbc07644ca7a0f0c5a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f3998e135f5e6bbbc07644ca7a0f0c5a_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2688
    • C:\Users\Admin\AppData\Local\Temp\f3998e135f5e6bbbc07644ca7a0f0c5a_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\f3998e135f5e6bbbc07644ca7a0f0c5a_JaffaCakes118.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4904
      • 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:4596
        • 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:3932
      • 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:3832
        • 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:3564
        • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
          C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:3380

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

Loading Replay Monitor...

Downloads

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

    281KB

    MD5

    d98e33b66343e7c96158444127a117f6

    SHA1

    bb716c5509a2bf345c6c1152f6e3e1452d39d50d

    SHA256

    5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

    SHA512

    705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

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

    4.5MB

    MD5

    f3998e135f5e6bbbc07644ca7a0f0c5a

    SHA1

    0a1353bdbab089ce09342ffdc489166dd1bc831f

    SHA256

    d80d8aa4f24bd52900e4f60d1e979fbd34157ab1ffe3777f52e72ce4a2d5eb0e

    SHA512

    eeea7f02b9f0896778fd75f7cc8d8a55ad94b960e174cf19403d2f968e912203011156789ef093538a1f6e99ef7ed924e02f1b3d0180236e6b71291ed15da934

    Download Submit
  • memory/2688-2-0x00000000059C0000-0x00000000062E6000-memory.dmp
    Filesize

    9.1MB

    Download
  • memory/2688-3-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/2688-4-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/2688-5-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/2688-7-0x00000000059C0000-0x00000000062E6000-memory.dmp
    Filesize

    9.1MB

    Download
  • memory/2688-1-0x0000000005580000-0x00000000059BE000-memory.dmp
    Filesize

    4.2MB

    Download
  • memory/3832-31-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/3832-27-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/3832-37-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/3832-17-0x0000000005800000-0x0000000005D00000-memory.dmp
    Filesize

    5.0MB

    Download
  • memory/3832-18-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/3832-19-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/3832-36-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/3832-25-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/3832-26-0x0000000005800000-0x0000000005D00000-memory.dmp
    Filesize

    5.0MB

    Download
  • memory/3832-35-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/3832-28-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/3832-29-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/3832-30-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/3832-34-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/3832-32-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/3832-33-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/4904-8-0x0000000005340000-0x000000000578A000-memory.dmp
    Filesize

    4.3MB

    Download
  • memory/4904-10-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/4904-9-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download
  • memory/4904-14-0x0000000000400000-0x000000000367B000-memory.dmp
    Filesize

    50.5MB

    Download