Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2023 18:23

General

  • Target

    1.exe

  • Size

    164KB

  • MD5

    e06b4b39fd3087fa167badf3017937e8

  • SHA1

    bed9f297239520657f1d2902ad684fe2e080df31

  • SHA256

    0f1c8a3bfaeb3510d11c4ab58231de540a70732f38c50a7b5f528580e6409eb0

  • SHA512

    8b37a3d11f78e9356fbc84c96e7c7fe18105a0120ebd47f6369f4d32a063cc86106f1b640414e3d176b5768d812686de6c2bd83e46e78d264da502b0616cc40e

  • SSDEEP

    3072:p0A3u0hCfiEYtWa9LLkXCJZTJaDG2Me0:pxuTfiEYtAXC92

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mailbuilderbuilder.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Alluminio.1

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1.exe
    "C:\Users\Admin\AppData\Local\Temp\1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2892
    • C:\Users\Admin\AppData\Local\Temp\1.exe
      C:\Users\Admin\AppData\Local\Temp\1.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4388

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1.exe.log

    Filesize

    1KB

    MD5

    8c2da65103d6b46d8cf610b118210cf0

    SHA1

    9db4638340bb74f2af3161cc2c9c0b8b32e6ab65

    SHA256

    0e48e2efd419951e0eb9a8d942493cfdf5540d1d19ff9dae6f145fb3ebcbeeac

    SHA512

    3cf5a125276e264cd8478f2b92d3848fb68b96d46eb4a39e650d09df02068c274881a1c314cdfbfdcb452672fb70dd8becf3ffe9562d39919d9c4d6b07fbb614

  • memory/2892-10-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/2892-5-0x0000000005630000-0x000000000563A000-memory.dmp

    Filesize

    40KB

  • memory/2892-11-0x00000000056D0000-0x00000000056E0000-memory.dmp

    Filesize

    64KB

  • memory/2892-0-0x0000000000A60000-0x0000000000A8E000-memory.dmp

    Filesize

    184KB

  • memory/2892-15-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/2892-6-0x0000000006670000-0x00000000066C8000-memory.dmp

    Filesize

    352KB

  • memory/2892-7-0x0000000006840000-0x0000000006880000-memory.dmp

    Filesize

    256KB

  • memory/2892-9-0x0000000006900000-0x000000000694C000-memory.dmp

    Filesize

    304KB

  • memory/2892-8-0x0000000006880000-0x00000000068C0000-memory.dmp

    Filesize

    256KB

  • memory/2892-1-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/2892-3-0x0000000005480000-0x0000000005512000-memory.dmp

    Filesize

    584KB

  • memory/2892-2-0x0000000005940000-0x0000000005EE4000-memory.dmp

    Filesize

    5.6MB

  • memory/2892-4-0x00000000056D0000-0x00000000056E0000-memory.dmp

    Filesize

    64KB

  • memory/4388-16-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4388-17-0x0000000005770000-0x00000000057D6000-memory.dmp

    Filesize

    408KB

  • memory/4388-18-0x00000000057E0000-0x00000000057F0000-memory.dmp

    Filesize

    64KB

  • memory/4388-19-0x0000000006F20000-0x0000000006F70000-memory.dmp

    Filesize

    320KB

  • memory/4388-20-0x0000000007010000-0x00000000070AC000-memory.dmp

    Filesize

    624KB

  • memory/4388-21-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-22-0x00000000057E0000-0x00000000057F0000-memory.dmp

    Filesize

    64KB