Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-03-2023 13:15

General

  • Target

    tmp.exe

  • Size

    846KB

  • MD5

    1af0bca4e65839b3416675ad0bd914f3

  • SHA1

    71ef20fda289218eb6bc651dd1c4bdfdc75cccd9

  • SHA256

    ee361abd551977efe8d984071743ee90b31c06573f5b5f954f3aad9284c18552

  • SHA512

    ac0eb0781e24de19e36cd237ba49c540e43cb3ded0ad12a3e137c5ff6023d23000df14e78f80c8a4e2af876796ff80f4138d989c500c4387a4ac4b86affe347d

  • SSDEEP

    24576:7Wjkj+yMy3udXDAu5aFw363tCzXRwicA:7Wjk8HdXku5aG57RhJ

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5494052141:AAF2aO4sQ_tu4BOnk0pmxB995km7Mslduy0/

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2212
    • C:\Users\Admin\AppData\Local\Temp\tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
      2⤵
        PID:1176
      • C:\Users\Admin\AppData\Local\Temp\tmp.exe
        "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:4416

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/2212-139-0x00000000085F0000-0x000000000868C000-memory.dmp

      Filesize

      624KB

    • memory/2212-135-0x0000000005970000-0x0000000005A02000-memory.dmp

      Filesize

      584KB

    • memory/2212-136-0x0000000005B30000-0x0000000005B40000-memory.dmp

      Filesize

      64KB

    • memory/2212-137-0x0000000005920000-0x000000000592A000-memory.dmp

      Filesize

      40KB

    • memory/2212-138-0x0000000005B30000-0x0000000005B40000-memory.dmp

      Filesize

      64KB

    • memory/2212-133-0x0000000000E90000-0x0000000000F68000-memory.dmp

      Filesize

      864KB

    • memory/2212-134-0x0000000005E80000-0x0000000006424000-memory.dmp

      Filesize

      5.6MB

    • memory/4416-140-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/4416-143-0x0000000005050000-0x00000000050B6000-memory.dmp

      Filesize

      408KB

    • memory/4416-144-0x0000000005110000-0x0000000005120000-memory.dmp

      Filesize

      64KB

    • memory/4416-145-0x0000000006430000-0x0000000006480000-memory.dmp

      Filesize

      320KB

    • memory/4416-146-0x0000000006650000-0x0000000006812000-memory.dmp

      Filesize

      1.8MB

    • memory/4416-153-0x0000000005110000-0x0000000005120000-memory.dmp

      Filesize

      64KB