Analysis

  • max time kernel
    143s
  • max time network
    148s
  • 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 02:01

General

  • Target

    b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26.exe

  • Size

    755KB

  • MD5

    69eb8a758814ce93b09578f47aba4c19

  • SHA1

    66850a40b2b77f8f89f8882a5f8aecc87110945e

  • SHA256

    b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26

  • SHA512

    df1d61ea9f993b311949e7cef7137c52fe367c75fe6bfa1a6c524376c5894f3c8f94b687814a769a44e83e626556bcf4b8b12f5d72b7924e220012d332eaaeae

  • SSDEEP

    12288:4bKDA7hW9s72Rw4iJQPxUCbwlM5cd39KKcZuoni5Y2rKDEbnv77PACR5leZlN2b:4bPWO7D4iJq0lM5EQzjngLHDDA+erob

Malware Config

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 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 WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 2 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\b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26.exe
    "C:\Users\Admin\AppData\Local\Temp\b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2900
    • C:\Users\Admin\AppData\Local\Temp\b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26.exe
      "C:\Users\Admin\AppData\Local\Temp\b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4372
  • 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 --field-trial-handle=4604,i,16710585221322798697,8586257254049248207,262144 --variations-seed-version --mojo-platform-channel-handle=4404 /prefetch:8
    1⤵
      PID:4036

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/2900-4-0x00000000058C0000-0x00000000058CA000-memory.dmp

      Filesize

      40KB

    • memory/2900-5-0x0000000074B70000-0x0000000075320000-memory.dmp

      Filesize

      7.7MB

    • memory/2900-9-0x0000000009970000-0x0000000009A0C000-memory.dmp

      Filesize

      624KB

    • memory/2900-0-0x0000000074B7E000-0x0000000074B7F000-memory.dmp

      Filesize

      4KB

    • memory/2900-1-0x0000000000DF0000-0x0000000000EB4000-memory.dmp

      Filesize

      784KB

    • memory/2900-6-0x00000000084B0000-0x00000000084D2000-memory.dmp

      Filesize

      136KB

    • memory/2900-7-0x00000000052D0000-0x00000000052E0000-memory.dmp

      Filesize

      64KB

    • memory/2900-13-0x0000000074B70000-0x0000000075320000-memory.dmp

      Filesize

      7.7MB

    • memory/2900-3-0x00000000058E0000-0x0000000005972000-memory.dmp

      Filesize

      584KB

    • memory/2900-2-0x0000000005E90000-0x0000000006434000-memory.dmp

      Filesize

      5.6MB

    • memory/2900-8-0x0000000006E00000-0x0000000006E84000-memory.dmp

      Filesize

      528KB

    • memory/4372-10-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/4372-14-0x0000000074B70000-0x0000000075320000-memory.dmp

      Filesize

      7.7MB

    • memory/4372-15-0x0000000005870000-0x00000000058D6000-memory.dmp

      Filesize

      408KB

    • memory/4372-16-0x0000000074B70000-0x0000000075320000-memory.dmp

      Filesize

      7.7MB

    • memory/4372-17-0x00000000070D0000-0x0000000007120000-memory.dmp

      Filesize

      320KB

    • memory/4372-18-0x0000000074B70000-0x0000000075320000-memory.dmp

      Filesize

      7.7MB