Overview

overview

10

Static

static

1

JaffaCakes...bf.exe

windows7-x64

10

JaffaCakes...bf.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 02:53

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General

  • Target

    JaffaCakes118_419fb518e60ea977f1397d7e905de86758bfe31916e9a3a3c4f70324bb2705bf.exe

  • Size

    4.3MB

  • MD5

    a4c18c33c773fff4e1acbb468712bfea

  • SHA1

    970077bfc209e8e925f57804d191c282e8d9028f

  • SHA256

    419fb518e60ea977f1397d7e905de86758bfe31916e9a3a3c4f70324bb2705bf

  • SHA512

    2c242c0e881047f5569ceb60bde963537ec979068c0bfebee97dc501db94e2f55185fabacfbecd5d18ed59fbe2a322a4b0e2ce2ae8713078950e416c36856f87

  • SSDEEP

    98304:wryFT1lw0pstmMd7dFwKBmSiJn1diLTpAHhEztCASHZKCWqtAqOaEV:GYwVd/p+n1dATpGhEzNS3lOaEV

Score
10/10
gluptebametasploitbackdoordiscoverydropperevasionloaderpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

metasploit

Version

windows/single_exec

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba family
    glupteba
  • Glupteba payload 8 IoCs
  • MetaSploit

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

    trojanbackdoormetasploit
  • Metasploit family
    metasploit
  • Windows security bypass 2 TTPs 10 IoCs
    evasiontrojan
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 10 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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 3 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 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 3 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
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_419fb518e60ea977f1397d7e905de86758bfe31916e9a3a3c4f70324bb2705bf.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_419fb518e60ea977f1397d7e905de86758bfe31916e9a3a3c4f70324bb2705bf.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2756
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_419fb518e60ea977f1397d7e905de86758bfe31916e9a3a3c4f70324bb2705bf.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_419fb518e60ea977f1397d7e905de86758bfe31916e9a3a3c4f70324bb2705bf.exe"
      2⤵
      • Windows security bypass
      • Loads dropped DLL
      • Windows security modification
      • 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
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2864
      • 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:2740
        • 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
          • Modifies data under HKEY_USERS
          PID:2124
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe /51-51
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:264
  • C:\Windows\system32\makecab.exe
    "C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20241225025326.log C:\Windows\Logs\CBS\CbsPersist_20241225025326.cab
    1⤵
    • Drops file in Windows directory
    PID:1508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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

Defense Evasion

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Modify Registry

3
T1112

Credential Access

Discovery

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

  • \Windows\rss\csrss.exe
    Filesize

    4.3MB

    MD5

    a4c18c33c773fff4e1acbb468712bfea

    SHA1

    970077bfc209e8e925f57804d191c282e8d9028f

    SHA256

    419fb518e60ea977f1397d7e905de86758bfe31916e9a3a3c4f70324bb2705bf

    SHA512

    2c242c0e881047f5569ceb60bde963537ec979068c0bfebee97dc501db94e2f55185fabacfbecd5d18ed59fbe2a322a4b0e2ce2ae8713078950e416c36856f87

    Download Submit

  • memory/264-21-0x0000000000400000-0x0000000002574000-memory.dmp

    Filesize

    33.5MB

    Download

  • memory/264-18-0x0000000002AE0000-0x0000000002F1B000-memory.dmp

    Filesize

    4.2MB

    Download

  • memory/2756-8-0x0000000002BB0000-0x00000000034CE000-memory.dmp

    Filesize

    9.1MB

    Download

  • memory/2756-7-0x0000000000400000-0x0000000000D39000-memory.dmp

    Filesize

    9.2MB

    Download

  • memory/2756-0-0x0000000002770000-0x0000000002BAB000-memory.dmp

    Filesize

    4.2MB

    Download

  • memory/2756-6-0x0000000002770000-0x0000000002BAB000-memory.dmp

    Filesize

    4.2MB

    Download

  • memory/2756-5-0x0000000000400000-0x0000000002574000-memory.dmp

    Filesize

    33.5MB

    Download

  • memory/2756-3-0x0000000000400000-0x0000000000D39000-memory.dmp

    Filesize

    9.2MB

    Download

  • memory/2756-2-0x0000000002BB0000-0x00000000034CE000-memory.dmp

    Filesize

    9.1MB

    Download

  • memory/2756-1-0x0000000002770000-0x0000000002BAB000-memory.dmp

    Filesize

    4.2MB

    Download

  • memory/2864-4-0x0000000002790000-0x0000000002BCB000-memory.dmp

    Filesize

    4.2MB

    Download

  • memory/2864-9-0x0000000000400000-0x0000000002574000-memory.dmp

    Filesize

    33.5MB

    Download

  • memory/2864-20-0x0000000000400000-0x0000000002574000-memory.dmp

    Filesize

    33.5MB

    Download