Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 18:17

General

  • Target

    05cbd477a5d9ec508fa8bd7b5a49a87f_JaffaCakes118.exe

  • Size

    750KB

  • MD5

    05cbd477a5d9ec508fa8bd7b5a49a87f

  • SHA1

    c5c6d3427969fdde3aacce0891615f132b5ee4df

  • SHA256

    9e3a94f237c30841d45f04d73fb46e31b3fa5c5f45a6b49b5acd8aaf9f0b748d

  • SHA512

    14a09d30943edaa4b0012f130b74184151fbb42bdf0749075ee6d197100492e82758cbaf7ffc19bbde7b6c1f076c1f7031bfbe3391f2ed53959a35cf50db1471

  • SSDEEP

    12288:G1++rHW3HzlXficzNf04PGPgAPxMOhJgZC3KX1fF2kqpcf:G1Rr6lX1GHLhJ2C3Kh0ps

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.nhbisun.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    7N_xUdf!3gm*

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla payload 5 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\05cbd477a5d9ec508fa8bd7b5a49a87f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\05cbd477a5d9ec508fa8bd7b5a49a87f_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YYYdycuR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD0F5.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2400
    • C:\Users\Admin\AppData\Local\Temp\05cbd477a5d9ec508fa8bd7b5a49a87f_JaffaCakes118.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2284

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD0F5.tmp
    Filesize

    1KB

    MD5

    e28820d1db4a0f4769831c8e1f749ce4

    SHA1

    032cd6e2ac027f431c56efce327cc67f074561d5

    SHA256

    9248320c7d0dccee22bc446ceab8724d7d803f757325c870ccf90b31fe5d6cf3

    SHA512

    320f3813a184b78d2d6e033a54c61eeaa0262462fe2c658afb073e21e7d975b61f933ea1f2de1a69f6e8b1196a96493c0196380347d727f65e6ad2cb3cb9c8de

  • memory/2156-22-0x00000000743E0000-0x0000000074ACE000-memory.dmp
    Filesize

    6.9MB

  • memory/2156-1-0x00000000743E0000-0x0000000074ACE000-memory.dmp
    Filesize

    6.9MB

  • memory/2156-2-0x00000000004C0000-0x00000000004D2000-memory.dmp
    Filesize

    72KB

  • memory/2156-3-0x00000000743E0000-0x0000000074ACE000-memory.dmp
    Filesize

    6.9MB

  • memory/2156-4-0x0000000004D10000-0x0000000004D50000-memory.dmp
    Filesize

    256KB

  • memory/2156-5-0x00000000049E0000-0x0000000004A62000-memory.dmp
    Filesize

    520KB

  • memory/2156-6-0x00000000076F0000-0x000000000776A000-memory.dmp
    Filesize

    488KB

  • memory/2156-0-0x0000000000980000-0x0000000000A42000-memory.dmp
    Filesize

    776KB

  • memory/2284-10-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/2284-21-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/2284-16-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/2284-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2284-13-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/2284-12-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/2284-19-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/2284-11-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB