Analysis

  • max time kernel
    51s
  • max time network
    53s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 01:54

General

  • Target

    4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890.exe

  • Size

    850KB

  • MD5

    dc10c00626437f715e4aaa803adfbdcb

  • SHA1

    62230feb3573a10641196444181c37aba6bc86fb

  • SHA256

    4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890

  • SHA512

    456c068e139acacd3b9fe20863dfe55d1c8bd24e51bc5383bca9e185381507e8d6cee0c372dec5c06d50eb9701a3bcfcc7d94c50b343d31b22bdbe43dd7b034d

  • SSDEEP

    24576:Lg61jjk0LAta9A3DIoVcL5ZIJyjd2sy0rWW518J:27V4v88W+8

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://beirutrest.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    9yXQ39wz(uL+

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.

  • 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 WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890.exe
    "C:\Users\Admin\AppData\Local\Temp\4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4204
    • C:\Users\Admin\AppData\Local\Temp\4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890.exe
      "C:\Users\Admin\AppData\Local\Temp\4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3068

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4397c1263474e99e7969a2a3c1794fbdf01332889accb90f4b600b09947f4890.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/3068-18-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3068-17-0x0000000006E90000-0x0000000006EE0000-memory.dmp

    Filesize

    320KB

  • memory/3068-16-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3068-15-0x0000000005540000-0x00000000055A6000-memory.dmp

    Filesize

    408KB

  • memory/3068-14-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3068-10-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/4204-5-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4204-8-0x0000000008310000-0x0000000008392000-memory.dmp

    Filesize

    520KB

  • memory/4204-9-0x000000000AA70000-0x000000000AB0C000-memory.dmp

    Filesize

    624KB

  • memory/4204-7-0x00000000067D0000-0x00000000067E0000-memory.dmp

    Filesize

    64KB

  • memory/4204-6-0x00000000082F0000-0x000000000830A000-memory.dmp

    Filesize

    104KB

  • memory/4204-4-0x0000000005730000-0x000000000573A000-memory.dmp

    Filesize

    40KB

  • memory/4204-13-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4204-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

    Filesize

    4KB

  • memory/4204-3-0x0000000005560000-0x00000000055F2000-memory.dmp

    Filesize

    584KB

  • memory/4204-2-0x0000000005A20000-0x0000000005FC4000-memory.dmp

    Filesize

    5.6MB

  • memory/4204-1-0x0000000000AA0000-0x0000000000B7C000-memory.dmp

    Filesize

    880KB