Analysis

  • max time kernel
    127s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2024 11:23

General

  • Target

    046309626e33ad4d0fb4f4937f643fb7_JaffaCakes118.exe

  • Size

    405KB

  • MD5

    046309626e33ad4d0fb4f4937f643fb7

  • SHA1

    3a2de014894f2d44f7bebe8b2a55f22d54e02170

  • SHA256

    ece73ec955293ab06c24d68c3813eeadcaff7b169953744859984cd4d51d30f1

  • SHA512

    2c0e47db3e3c12deb9923e36f87f0d246209f2510b4fed17b9372ed877edc38e1e98384e6d0f62f402765c840f0df0c16aea5f0cb32bee506375f8c068b8b6af

  • SSDEEP

    6144:jdAegMkhBCDzhxXj9J9LhXVb7+Y+oKIzb8o+E1wnJWnXTBMQ/9Z3O6KhObdBrA7s:VSBC3/jLtqY1vgOynEXTKd6oITrAGiY

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    srodriguez@beticco.com
  • Password:
    C%)%GWZe9

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\046309626e33ad4d0fb4f4937f643fb7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\046309626e33ad4d0fb4f4937f643fb7_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1248
    • C:\Users\Admin\AppData\Local\Temp\046309626e33ad4d0fb4f4937f643fb7_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\046309626e33ad4d0fb4f4937f643fb7_JaffaCakes118.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2272

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\046309626e33ad4d0fb4f4937f643fb7_JaffaCakes118.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/1248-10-0x0000000006270000-0x00000000062D0000-memory.dmp
    Filesize

    384KB

  • memory/1248-5-0x0000000005380000-0x000000000538A000-memory.dmp
    Filesize

    40KB

  • memory/1248-15-0x0000000074930000-0x00000000750E0000-memory.dmp
    Filesize

    7.7MB

  • memory/1248-4-0x0000000005420000-0x0000000005430000-memory.dmp
    Filesize

    64KB

  • memory/1248-1-0x0000000074930000-0x00000000750E0000-memory.dmp
    Filesize

    7.7MB

  • memory/1248-6-0x00000000053B0000-0x00000000053BA000-memory.dmp
    Filesize

    40KB

  • memory/1248-7-0x0000000074930000-0x00000000750E0000-memory.dmp
    Filesize

    7.7MB

  • memory/1248-8-0x0000000005420000-0x0000000005430000-memory.dmp
    Filesize

    64KB

  • memory/1248-9-0x0000000006020000-0x00000000060BC000-memory.dmp
    Filesize

    624KB

  • memory/1248-0-0x00000000007C0000-0x000000000082C000-memory.dmp
    Filesize

    432KB

  • memory/1248-3-0x00000000051E0000-0x0000000005272000-memory.dmp
    Filesize

    584KB

  • memory/1248-2-0x0000000005790000-0x0000000005D34000-memory.dmp
    Filesize

    5.6MB

  • memory/2272-14-0x0000000074930000-0x00000000750E0000-memory.dmp
    Filesize

    7.7MB

  • memory/2272-11-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2272-16-0x0000000004F40000-0x0000000004F50000-memory.dmp
    Filesize

    64KB

  • memory/2272-17-0x0000000004FA0000-0x0000000004FB8000-memory.dmp
    Filesize

    96KB

  • memory/2272-18-0x0000000005C20000-0x0000000005C86000-memory.dmp
    Filesize

    408KB

  • memory/2272-19-0x0000000074930000-0x00000000750E0000-memory.dmp
    Filesize

    7.7MB

  • memory/2272-20-0x0000000004F40000-0x0000000004F50000-memory.dmp
    Filesize

    64KB

  • memory/2272-21-0x0000000006180000-0x00000000061D0000-memory.dmp
    Filesize

    320KB

  • memory/2272-22-0x0000000004F40000-0x0000000004F50000-memory.dmp
    Filesize

    64KB