Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-03-2024 02:56

General

  • Target

    e9666b1c4832b4fae3effce740700f565e6336bcaf47852005c1e0553436e7b7.exe

  • Size

    705KB

  • MD5

    1c2e10456d4941fc03b4505745df986d

  • SHA1

    8e4a49017e5906846ed12440dae27f7c702bc64d

  • SHA256

    e9666b1c4832b4fae3effce740700f565e6336bcaf47852005c1e0553436e7b7

  • SHA512

    33480167a4cb3f0703e4f053b8ad83f9b2291a804e1cf6d14c27ac9272fce414a7a5793ff6ecd36c808a085fdb6e9b41b630322fa61de4fd2baff06847c7143b

  • SSDEEP

    12288:a/US0YOwqOp67LHOv8AzfetftWQkPV48wjNk+KmTGvUbIu0xCBUK4kogNCGSkR:qO7HLMzWf+CEmTGvK8CqK4kbNCGh

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    nl9.nlkoddos.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Myname321@

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 1 IoCs
  • Detects executables packed with SmartAssembly 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • 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 use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 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\e9666b1c4832b4fae3effce740700f565e6336bcaf47852005c1e0553436e7b7.exe
    "C:\Users\Admin\AppData\Local\Temp\e9666b1c4832b4fae3effce740700f565e6336bcaf47852005c1e0553436e7b7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Users\Admin\AppData\Local\Temp\e9666b1c4832b4fae3effce740700f565e6336bcaf47852005c1e0553436e7b7.exe
      "C:\Users\Admin\AppData\Local\Temp\e9666b1c4832b4fae3effce740700f565e6336bcaf47852005c1e0553436e7b7.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:400
  • 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=3932 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1012

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    2
    T1552

    Credentials In Files

    2
    T1552.001

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/400-10-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/400-19-0x00000000058A0000-0x00000000058B0000-memory.dmp
      Filesize

      64KB

    • memory/400-18-0x00000000070E0000-0x0000000007130000-memory.dmp
      Filesize

      320KB

    • memory/400-17-0x0000000075120000-0x00000000758D0000-memory.dmp
      Filesize

      7.7MB

    • memory/400-16-0x00000000057E0000-0x0000000005846000-memory.dmp
      Filesize

      408KB

    • memory/400-14-0x00000000058A0000-0x00000000058B0000-memory.dmp
      Filesize

      64KB

    • memory/400-12-0x0000000075120000-0x00000000758D0000-memory.dmp
      Filesize

      7.7MB

    • memory/1556-4-0x0000000005AE0000-0x0000000005AF0000-memory.dmp
      Filesize

      64KB

    • memory/1556-8-0x0000000007520000-0x00000000075A4000-memory.dmp
      Filesize

      528KB

    • memory/1556-9-0x0000000009BC0000-0x0000000009C5C000-memory.dmp
      Filesize

      624KB

    • memory/1556-7-0x0000000005DF0000-0x0000000005DFC000-memory.dmp
      Filesize

      48KB

    • memory/1556-11-0x0000000075120000-0x00000000758D0000-memory.dmp
      Filesize

      7.7MB

    • memory/1556-6-0x00000000071A0000-0x00000000071BA000-memory.dmp
      Filesize

      104KB

    • memory/1556-5-0x0000000005810000-0x000000000581A000-memory.dmp
      Filesize

      40KB

    • memory/1556-15-0x0000000075120000-0x00000000758D0000-memory.dmp
      Filesize

      7.7MB

    • memory/1556-0-0x0000000075120000-0x00000000758D0000-memory.dmp
      Filesize

      7.7MB

    • memory/1556-3-0x0000000005860000-0x00000000058F2000-memory.dmp
      Filesize

      584KB

    • memory/1556-2-0x0000000005E10000-0x00000000063B4000-memory.dmp
      Filesize

      5.6MB

    • memory/1556-1-0x0000000000D70000-0x0000000000E24000-memory.dmp
      Filesize

      720KB