Analysis

  • max time kernel
    119s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26-03-2024 14:00

General

  • Target

    CV Mariana Alvarez.exe

  • Size

    622KB

  • MD5

    467111735472753ad98e8500663b1de7

  • SHA1

    8986442fd28e74c6f55baf354002dd678f73995e

  • SHA256

    b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a

  • SHA512

    892f17af5c873a5e9717c72b1c5c7783536872e89e42663079c9f0848b8a104ad29d231ae7bd4a62d6fd49996ac5fb516dffd058cbe26e5f74ef4cad7306894e

  • SSDEEP

    12288:aa5WDRFksUKQNuqq2QJrK9E8qIr18hrQBQKXXUaHMvA1dmGBLyrN1H80UjHgJ:+HkswdxkrK9E8zrWJcxt9dmKyrN1u

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.

  • 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CV Mariana Alvarez.exe
    "C:\Users\Admin\AppData\Local\Temp\CV Mariana Alvarez.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2200
    • C:\Users\Admin\AppData\Local\Temp\CV Mariana Alvarez.exe
      "C:\Users\Admin\AppData\Local\Temp\CV Mariana Alvarez.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2736

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

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2200-21-0x0000000074C10000-0x00000000752FE000-memory.dmp
    Filesize

    6.9MB

  • memory/2200-1-0x0000000074C10000-0x00000000752FE000-memory.dmp
    Filesize

    6.9MB

  • memory/2200-2-0x00000000003C0000-0x0000000000400000-memory.dmp
    Filesize

    256KB

  • memory/2200-3-0x0000000000310000-0x0000000000322000-memory.dmp
    Filesize

    72KB

  • memory/2200-4-0x00000000003B0000-0x00000000003BC000-memory.dmp
    Filesize

    48KB

  • memory/2200-5-0x0000000005BF0000-0x0000000005C72000-memory.dmp
    Filesize

    520KB

  • memory/2200-6-0x0000000074C10000-0x00000000752FE000-memory.dmp
    Filesize

    6.9MB

  • memory/2200-7-0x00000000003C0000-0x0000000000400000-memory.dmp
    Filesize

    256KB

  • memory/2200-0-0x0000000001100000-0x00000000011A0000-memory.dmp
    Filesize

    640KB

  • memory/2736-10-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2736-12-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2736-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2736-15-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2736-17-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2736-19-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2736-20-0x0000000074C10000-0x00000000752FE000-memory.dmp
    Filesize

    6.9MB

  • memory/2736-11-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2736-22-0x0000000074C10000-0x00000000752FE000-memory.dmp
    Filesize

    6.9MB