Analysis

  • max time kernel
    113s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-03-2024 14:38

General

  • Target

    4dd1ec5df036681f5a1e6b50bf0e449c6e396c536cd2037f7691e214e00c2b16.exe

  • Size

    654KB

  • MD5

    342f059472f3b0eba755742421856d6e

  • SHA1

    2fbd2bb10513da4df3df8910b74d89744bb31a13

  • SHA256

    4dd1ec5df036681f5a1e6b50bf0e449c6e396c536cd2037f7691e214e00c2b16

  • SHA512

    0fc6b35882519e5e3b9a8cfba500c67e23636782536580150defeeaedaced107b98b85ddf7186b8c5790f97e452c76586ef05b352d7630a2e6de89d06beceb9c

  • SSDEEP

    12288:xo7KY6+qoDj+W6n7z+Vd0T2+LOVR2LCMtT2fDsCD1aMT7tA:6uv+qoqn3+DR2rCD1aMy

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5905440472:AAH7yJYEREM-Uefb6Xv04uo_iKD7w2txk9k/

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 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4dd1ec5df036681f5a1e6b50bf0e449c6e396c536cd2037f7691e214e00c2b16.exe
    "C:\Users\Admin\AppData\Local\Temp\4dd1ec5df036681f5a1e6b50bf0e449c6e396c536cd2037f7691e214e00c2b16.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3548
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1408 --field-trial-handle=2260,i,9938964625802268469,1928462186077019554,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4732

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Collection

    Data from Local System

    4
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3548-0-0x0000000000FE0000-0x0000000001024000-memory.dmp
      Filesize

      272KB

    • memory/3548-4-0x0000000074EB0000-0x0000000075660000-memory.dmp
      Filesize

      7.7MB

    • memory/3548-5-0x0000000005C90000-0x0000000006234000-memory.dmp
      Filesize

      5.6MB

    • memory/3548-6-0x0000000005800000-0x0000000005866000-memory.dmp
      Filesize

      408KB

    • memory/3548-7-0x00000000057F0000-0x0000000005800000-memory.dmp
      Filesize

      64KB

    • memory/3548-8-0x0000000006DE0000-0x0000000006E72000-memory.dmp
      Filesize

      584KB

    • memory/3548-9-0x0000000006EC0000-0x0000000006F10000-memory.dmp
      Filesize

      320KB

    • memory/3548-10-0x0000000006FB0000-0x000000000704C000-memory.dmp
      Filesize

      624KB

    • memory/3548-11-0x0000000074EB0000-0x0000000075660000-memory.dmp
      Filesize

      7.7MB

    • memory/3548-12-0x00000000057F0000-0x0000000005800000-memory.dmp
      Filesize

      64KB