Analysis

  • max time kernel
    125s
  • max time network
    52s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231201-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231201-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2023 21:00

General

  • Target

    RFQ155115.exe

  • Size

    809KB

  • MD5

    bc7f894d4ac5380359cc4ecfb5e89540

  • SHA1

    dc4c07d683c482f878971840a407efac016ce360

  • SHA256

    ded4d7400f9b37aa33cddbe13bb8f7bbb3a3acf4e4708d0b7cfededa46ffb79b

  • SHA512

    d6c4c9240173b3bcf673980da8a40c811c94616512414b12fa99c4b88c03a2aa306724586ae478c23292c658ed6409d719dbfc256dbc8232959d01fd3d012b92

  • SSDEEP

    24576:9XKtD/61Ijjp/M5VYLCrrVCm51jNOOty+oZQGF3z:M6Kjjp/u5XV/bjQ0mZt

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.

  • Adds Run key to start application 2 TTPs 1 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ155115.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ155115.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3556
    • C:\Users\Admin\AppData\Local\Temp\RFQ155115.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ155115.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3528

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RFQ155115.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/3528-11-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/3528-22-0x00000000057D0000-0x00000000057E0000-memory.dmp

    Filesize

    64KB

  • memory/3528-21-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/3528-20-0x0000000006E20000-0x0000000006E70000-memory.dmp

    Filesize

    320KB

  • memory/3528-17-0x0000000005760000-0x00000000057C6000-memory.dmp

    Filesize

    408KB

  • memory/3528-16-0x00000000057D0000-0x00000000057E0000-memory.dmp

    Filesize

    64KB

  • memory/3528-14-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/3556-5-0x0000000005BA0000-0x0000000005BAA000-memory.dmp

    Filesize

    40KB

  • memory/3556-9-0x00000000073B0000-0x000000000742E000-memory.dmp

    Filesize

    504KB

  • memory/3556-10-0x0000000007180000-0x000000000721C000-memory.dmp

    Filesize

    624KB

  • memory/3556-8-0x0000000005ED0000-0x0000000005EDA000-memory.dmp

    Filesize

    40KB

  • memory/3556-7-0x0000000005D80000-0x0000000005D88000-memory.dmp

    Filesize

    32KB

  • memory/3556-6-0x0000000005EA0000-0x0000000005EB8000-memory.dmp

    Filesize

    96KB

  • memory/3556-15-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/3556-1-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/3556-4-0x0000000005BE0000-0x0000000005BF0000-memory.dmp

    Filesize

    64KB

  • memory/3556-3-0x00000000059F0000-0x0000000005A82000-memory.dmp

    Filesize

    584KB

  • memory/3556-2-0x0000000005EE0000-0x0000000006484000-memory.dmp

    Filesize

    5.6MB

  • memory/3556-0-0x0000000000F50000-0x0000000001020000-memory.dmp

    Filesize

    832KB