Analysis

  • max time kernel
    125s
  • max time network
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2023 16:35

General

  • Target

    Confirmacaodeconta.exe

  • Size

    841KB

  • MD5

    c0faf71f9d3d14e79bec6769860b564f

  • SHA1

    2f11711bf5b4aa115d160e022b14cd1e91570737

  • SHA256

    692469e7237af7cf1c4d4b9d7abcbd5064732f6318ed91c21bd11e8f8adce3c4

  • SHA512

    63b1c4c1767fd23f18fb06f86bdd885861dfb63359cc890fe0b9aabbab67189400d676d325bddbdbb48010ca8650fdb83fe81656c07eb65dd8f0c55e2ca38764

  • SSDEEP

    24576:IyT/7fbYvQed+5d5o57m9KuDa/MFEbma:IyTjfbYvk5/o57mk0wma

Malware Config

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.

  • 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Confirmacaodeconta.exe
    "C:\Users\Admin\AppData\Local\Temp\Confirmacaodeconta.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:212
    • C:\Users\Admin\AppData\Local\Temp\Confirmacaodeconta.exe
      "C:\Users\Admin\AppData\Local\Temp\Confirmacaodeconta.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/212-10-0x0000000007F40000-0x0000000007FDC000-memory.dmp

    Filesize

    624KB

  • memory/212-5-0x0000000005100000-0x000000000510A000-memory.dmp

    Filesize

    40KB

  • memory/212-11-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/212-19-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/212-12-0x0000000005140000-0x0000000005150000-memory.dmp

    Filesize

    64KB

  • memory/212-6-0x0000000007C20000-0x0000000007C32000-memory.dmp

    Filesize

    72KB

  • memory/212-7-0x0000000007C40000-0x0000000007C48000-memory.dmp

    Filesize

    32KB

  • memory/212-8-0x0000000007C50000-0x0000000007C5A000-memory.dmp

    Filesize

    40KB

  • memory/212-9-0x0000000007C90000-0x0000000007D2C000-memory.dmp

    Filesize

    624KB

  • memory/212-1-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/212-3-0x0000000004F40000-0x0000000004FD2000-memory.dmp

    Filesize

    584KB

  • memory/212-2-0x0000000005430000-0x00000000059D4000-memory.dmp

    Filesize

    5.6MB

  • memory/212-4-0x0000000005140000-0x0000000005150000-memory.dmp

    Filesize

    64KB

  • memory/212-0-0x00000000004D0000-0x00000000005A8000-memory.dmp

    Filesize

    864KB

  • memory/1688-16-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/1688-13-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1688-18-0x0000000005A70000-0x0000000005AD6000-memory.dmp

    Filesize

    408KB

  • memory/1688-17-0x00000000058B0000-0x00000000058C0000-memory.dmp

    Filesize

    64KB

  • memory/1688-20-0x0000000006FE0000-0x0000000007030000-memory.dmp

    Filesize

    320KB

  • memory/1688-21-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/1688-22-0x00000000058B0000-0x00000000058C0000-memory.dmp

    Filesize

    64KB