Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 04:07

General

  • Target

    pro-forma invoice.xlsm.exe

  • Size

    2.2MB

  • MD5

    7f673b101bf26081c7e9a07afb60208d

  • SHA1

    7d875b5fa96cb98a12290dac8f78f32b321023c4

  • SHA256

    b0dcb9ceb001f6ea05b3163e56783cfe2028357129eb7db516d28e88acd9845b

  • SHA512

    59e218de90db1e498239ec9cdd129b595b58cc5f2e4da6b1a142b654ef1ad8ad21679c1714180ad28cf4163c39ba093f829ec7fb9bbda6577b3b026dd6aac2a5

  • SSDEEP

    49152:Ya3RyYkdvQ0RKgfPj6eKgT24yYqYu+lste0NENnxIj0i7wClms:YwyjI0RKgfb6eKgTgXp+lst21x5Clms

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\pro-forma invoice.xlsm.exe
    "C:\Users\Admin\AppData\Local\Temp\pro-forma invoice.xlsm.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1440
    • C:\Users\Admin\AppData\Local\Temp\pro-forma invoice.xlsm.exe
      "C:\Users\Admin\AppData\Local\Temp\pro-forma invoice.xlsm.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2616

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

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

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1440-0-0x000000007405E000-0x000000007405F000-memory.dmp
    Filesize

    4KB

  • memory/1440-1-0x0000000000E30000-0x0000000001076000-memory.dmp
    Filesize

    2.3MB

  • memory/1440-2-0x0000000074050000-0x000000007473E000-memory.dmp
    Filesize

    6.9MB

  • memory/1440-3-0x0000000004F30000-0x0000000005160000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-4-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-19-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-21-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-27-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-25-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-23-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-17-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-15-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-31-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-29-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-13-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-11-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-33-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-9-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-7-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-5-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-35-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-37-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-39-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-41-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-43-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-45-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-47-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-53-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-51-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-49-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-55-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-57-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-59-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-61-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-63-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-65-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-67-0x0000000004F30000-0x000000000515A000-memory.dmp
    Filesize

    2.2MB

  • memory/1440-4890-0x0000000074050000-0x000000007473E000-memory.dmp
    Filesize

    6.9MB

  • memory/1440-4891-0x0000000004880000-0x00000000048EC000-memory.dmp
    Filesize

    432KB

  • memory/1440-4892-0x0000000000A90000-0x0000000000ADC000-memory.dmp
    Filesize

    304KB

  • memory/1440-4893-0x000000007405E000-0x000000007405F000-memory.dmp
    Filesize

    4KB

  • memory/1440-4894-0x0000000074050000-0x000000007473E000-memory.dmp
    Filesize

    6.9MB

  • memory/1440-4895-0x0000000000C00000-0x0000000000C54000-memory.dmp
    Filesize

    336KB

  • memory/1440-4910-0x0000000074050000-0x000000007473E000-memory.dmp
    Filesize

    6.9MB

  • memory/2616-4912-0x0000000074050000-0x000000007473E000-memory.dmp
    Filesize

    6.9MB

  • memory/2616-4911-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2616-4913-0x0000000074050000-0x000000007473E000-memory.dmp
    Filesize

    6.9MB

  • memory/2616-4915-0x0000000074050000-0x000000007473E000-memory.dmp
    Filesize

    6.9MB