Analysis

  • max time kernel
    101s
  • max time network
    110s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2023 14:14

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:3536
    • 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:1928

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/1928-11-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/1928-22-0x0000000005520000-0x0000000005530000-memory.dmp

    Filesize

    64KB

  • memory/1928-21-0x0000000074400000-0x0000000074BB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1928-20-0x0000000006CF0000-0x0000000006D40000-memory.dmp

    Filesize

    320KB

  • memory/1928-15-0x0000000005670000-0x00000000056D6000-memory.dmp

    Filesize

    408KB

  • memory/1928-17-0x0000000005520000-0x0000000005530000-memory.dmp

    Filesize

    64KB

  • memory/1928-16-0x0000000074400000-0x0000000074BB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3536-5-0x0000000005110000-0x000000000511A000-memory.dmp

    Filesize

    40KB

  • memory/3536-9-0x0000000006AE0000-0x0000000006B5E000-memory.dmp

    Filesize

    504KB

  • memory/3536-10-0x00000000068D0000-0x000000000696C000-memory.dmp

    Filesize

    624KB

  • memory/3536-8-0x0000000005540000-0x000000000554A000-memory.dmp

    Filesize

    40KB

  • memory/3536-7-0x0000000005520000-0x0000000005528000-memory.dmp

    Filesize

    32KB

  • memory/3536-14-0x0000000074400000-0x0000000074BB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3536-6-0x0000000005500000-0x0000000005518000-memory.dmp

    Filesize

    96KB

  • memory/3536-0-0x0000000000660000-0x0000000000730000-memory.dmp

    Filesize

    832KB

  • memory/3536-4-0x00000000053F0000-0x0000000005400000-memory.dmp

    Filesize

    64KB

  • memory/3536-3-0x0000000005160000-0x00000000051F2000-memory.dmp

    Filesize

    584KB

  • memory/3536-2-0x0000000005710000-0x0000000005CB4000-memory.dmp

    Filesize

    5.6MB

  • memory/3536-1-0x0000000074400000-0x0000000074BB0000-memory.dmp

    Filesize

    7.7MB