Overview

overview

10

Static

static

3

a106ee87b9...18.exe

windows7-x64

10

a106ee87b9...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    133s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/08/2024, 03:25

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General

  • Target

    a106ee87b9330b0617b5774e45918467_JaffaCakes118.exe

  • Size

    300KB

  • MD5

    a106ee87b9330b0617b5774e45918467

  • SHA1

    d0945b80f0b877a878655f4b6b23c972e833a696

  • SHA256

    b72fde69482285756c3ceebe742a07c1f90a26098be86a5bd5e8d092bd99f465

  • SHA512

    46540d65263b16807eadc476b2b5015fb59528bf19f3bbe2677e5be6263d7cba14c11811283e971f484e84e83d52ce36caac2afd2b759912c14a1a9c68e65fb8

  • SSDEEP

    6144:L4KUbifAhYpDRTZeBUO+iXqEwl1YhpvihcZQWN:LdDRZeWAq/l1Yh9y0QWN

Score
10/10
bootkitdiscoveryevasionpersistenceprivilege_escalation

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Adds policy Run key to start application 2 TTPs 4 IoCs
    persistence
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Suspicious use of SetThreadContext 4 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 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • System Time Discovery 1 TTPs 1 IoCs

    Adversary may gather the system time and/or time zone settings from a local or remote system.

    discovery
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a106ee87b9330b0617b5774e45918467_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a106ee87b9330b0617b5774e45918467_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3732
    • C:\Users\Admin\AppData\Local\Temp\a106ee87b9330b0617b5774e45918467_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\a106ee87b9330b0617b5774e45918467_JaffaCakes118.exe"
      2⤵
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3916
      • C:\Users\Admin\AppData\Local\Temp\a106ee87b9330b0617b5774e45918467_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\a106ee87b9330b0617b5774e45918467_JaffaCakes118.exe"
        3⤵
        • Modifies WinLogon for persistence
        • Adds policy Run key to start application
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:64
        • C:\Windows\SysWOW64\netsh.exe
          netsh advfirewall firewall add rule name="Nero" dir=in action=allow description="Multimedia suite" program="C:\Users\Admin\AppData\Roaming\Microsoft\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          • System Time Discovery
          PID:3016
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrss.exe
          C:\Users\Admin\AppData\Local\Temp\a106ee87b9330b0617b5774e45918467_JaffaCakes118.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2128
          • C:\Users\Admin\AppData\Roaming\Microsoft\csrss.exe
            C:\Users\Admin\AppData\Local\Temp\a106ee87b9330b0617b5774e45918467_JaffaCakes118.exe
            5⤵
            • Executes dropped EXE
            • Writes to the Master Boot Record (MBR)
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:512
            • C:\Users\Admin\AppData\Roaming\Microsoft\csrss.exe
              C:\Users\Admin\AppData\Local\Temp\a106ee87b9330b0617b5774e45918467_JaffaCakes118.exe
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of SetWindowsHookEx
              PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

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

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

3
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\csrss.exe
    Filesize

    300KB

    MD5

    a106ee87b9330b0617b5774e45918467

    SHA1

    d0945b80f0b877a878655f4b6b23c972e833a696

    SHA256

    b72fde69482285756c3ceebe742a07c1f90a26098be86a5bd5e8d092bd99f465

    SHA512

    46540d65263b16807eadc476b2b5015fb59528bf19f3bbe2677e5be6263d7cba14c11811283e971f484e84e83d52ce36caac2afd2b759912c14a1a9c68e65fb8

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  • memory/64-7-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

    Download

  • memory/64-9-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

    Download

  • memory/64-23-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

    Download

  • memory/512-34-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

    Download

  • memory/2780-49-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

    Download

  • memory/3916-2-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

    Download

  • memory/3916-4-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

    Download

  • memory/3916-12-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

    Download