Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    27-03-2024 01:04

General

  • Target

    EV 4880 AF 271075403.exe

  • Size

    616KB

  • MD5

    f1970c4c91252226e927895f9057ce64

  • SHA1

    08439f291ec3a3e556464bf380002cc1737989fa

  • SHA256

    7c009952f608eb68e242b477f9d2551bacde90e1ea75d21e5c78378ba3f7b06c

  • SHA512

    2f521938f0c53b89f41e6ecc24a03401c3c05dd49aec17322d9e04c96fb968a185a51363a00e9eb5578a7415fe6444903d3b92b245085de2c6805fab2b9dcbcb

  • SSDEEP

    12288:D5va5W9z2oJJh8OHcIBCIRRFTBP8e7SvZNKDPD2gjvgTzMO:DH9yo98aBCIRHBP8rwaevgfMO

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\EV 4880 AF 271075403.exe
    "C:\Users\Admin\AppData\Local\Temp\EV 4880 AF 271075403.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Users\Admin\AppData\Local\Temp\EV 4880 AF 271075403.exe
      "C:\Users\Admin\AppData\Local\Temp\EV 4880 AF 271075403.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2608

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

  • memory/2104-1-0x00000000743D0000-0x0000000074ABE000-memory.dmp
    Filesize

    6.9MB

  • memory/2104-0-0x0000000000F40000-0x0000000000FE0000-memory.dmp
    Filesize

    640KB

  • memory/2104-2-0x0000000004E10000-0x0000000004E50000-memory.dmp
    Filesize

    256KB

  • memory/2104-3-0x0000000000390000-0x00000000003A2000-memory.dmp
    Filesize

    72KB

  • memory/2104-4-0x00000000003B0000-0x00000000003BC000-memory.dmp
    Filesize

    48KB

  • memory/2104-5-0x00000000050B0000-0x0000000005134000-memory.dmp
    Filesize

    528KB

  • memory/2104-6-0x00000000743D0000-0x0000000074ABE000-memory.dmp
    Filesize

    6.9MB

  • memory/2104-7-0x0000000004E10000-0x0000000004E50000-memory.dmp
    Filesize

    256KB

  • memory/2104-22-0x00000000743D0000-0x0000000074ABE000-memory.dmp
    Filesize

    6.9MB

  • memory/2608-12-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2608-10-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2608-13-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2608-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2608-17-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2608-19-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2608-21-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2608-8-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2608-23-0x00000000743D0000-0x0000000074ABE000-memory.dmp
    Filesize

    6.9MB

  • memory/2608-24-0x0000000004880000-0x00000000048C0000-memory.dmp
    Filesize

    256KB

  • memory/2608-25-0x00000000743D0000-0x0000000074ABE000-memory.dmp
    Filesize

    6.9MB

  • memory/2608-26-0x0000000004880000-0x00000000048C0000-memory.dmp
    Filesize

    256KB