Analysis

  • max time kernel
    103s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2023 17:14

General

  • Target

    e99e93f8216404e47006857d10ac15ed817d9335700c421670526f0d40ed265a.exe

  • Size

    811KB

  • MD5

    dc9d9448caee4e71e1a5c4df0d685924

  • SHA1

    d3161da375478a4f3f72249d920d19b7017dc395

  • SHA256

    e99e93f8216404e47006857d10ac15ed817d9335700c421670526f0d40ed265a

  • SHA512

    308ad252b1c7738c9dad45491770291d755214465dccf399b99d70770c999ab36bfdc90010ed94f3a64f8c333ddedbcd5d19e9c04efa488e7ef18d7412434d78

  • SSDEEP

    24576:S34/up+pJyPwC3OsLRCpN1dVrtHFMqP+:S38PJawsJRalVjLP+

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6813483585:AAGuo7_iQaYrqOce8KYO5QCqhLeR8nk_gNQ/

Signatures

  • AgentTesla

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

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e99e93f8216404e47006857d10ac15ed817d9335700c421670526f0d40ed265a.exe
    "C:\Users\Admin\AppData\Local\Temp\e99e93f8216404e47006857d10ac15ed817d9335700c421670526f0d40ed265a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3876
    • C:\Users\Admin\AppData\Local\Temp\e99e93f8216404e47006857d10ac15ed817d9335700c421670526f0d40ed265a.exe
      "C:\Users\Admin\AppData\Local\Temp\e99e93f8216404e47006857d10ac15ed817d9335700c421670526f0d40ed265a.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4876
  • C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
    1⤵
      PID:2236
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k UnistackSvcGroup
      1⤵
        PID:2484

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\e99e93f8216404e47006857d10ac15ed817d9335700c421670526f0d40ed265a.exe.log

        Filesize

        1KB

        MD5

        8ec831f3e3a3f77e4a7b9cd32b48384c

        SHA1

        d83f09fd87c5bd86e045873c231c14836e76a05c

        SHA256

        7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

        SHA512

        26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

      • memory/2484-37-0x00000233320A0000-0x00000233320B0000-memory.dmp

        Filesize

        64KB

      • memory/2484-21-0x0000023331FA0000-0x0000023331FB0000-memory.dmp

        Filesize

        64KB

      • memory/2484-53-0x000002333A410000-0x000002333A411000-memory.dmp

        Filesize

        4KB

      • memory/2484-55-0x000002333A440000-0x000002333A441000-memory.dmp

        Filesize

        4KB

      • memory/2484-57-0x000002333A550000-0x000002333A551000-memory.dmp

        Filesize

        4KB

      • memory/2484-56-0x000002333A440000-0x000002333A441000-memory.dmp

        Filesize

        4KB

      • memory/3876-8-0x00000000054A0000-0x00000000054AA000-memory.dmp

        Filesize

        40KB

      • memory/3876-7-0x0000000005490000-0x0000000005498000-memory.dmp

        Filesize

        32KB

      • memory/3876-9-0x00000000064D0000-0x000000000654A000-memory.dmp

        Filesize

        488KB

      • memory/3876-10-0x0000000006160000-0x00000000061FC000-memory.dmp

        Filesize

        624KB

      • memory/3876-6-0x0000000005450000-0x0000000005468000-memory.dmp

        Filesize

        96KB

      • memory/3876-0-0x0000000074410000-0x0000000074BC0000-memory.dmp

        Filesize

        7.7MB

      • memory/3876-5-0x0000000004FF0000-0x0000000004FFA000-memory.dmp

        Filesize

        40KB

      • memory/3876-15-0x0000000074410000-0x0000000074BC0000-memory.dmp

        Filesize

        7.7MB

      • memory/3876-4-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

        Filesize

        64KB

      • memory/3876-3-0x0000000004E10000-0x0000000004EA2000-memory.dmp

        Filesize

        584KB

      • memory/3876-2-0x00000000054B0000-0x0000000005A54000-memory.dmp

        Filesize

        5.6MB

      • memory/3876-1-0x0000000000370000-0x0000000000440000-memory.dmp

        Filesize

        832KB

      • memory/4876-11-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/4876-20-0x00000000052A0000-0x00000000052B0000-memory.dmp

        Filesize

        64KB

      • memory/4876-19-0x0000000074410000-0x0000000074BC0000-memory.dmp

        Filesize

        7.7MB

      • memory/4876-18-0x00000000057B0000-0x0000000005800000-memory.dmp

        Filesize

        320KB

      • memory/4876-17-0x0000000004FA0000-0x0000000005006000-memory.dmp

        Filesize

        408KB

      • memory/4876-16-0x00000000052A0000-0x00000000052B0000-memory.dmp

        Filesize

        64KB

      • memory/4876-14-0x0000000074410000-0x0000000074BC0000-memory.dmp

        Filesize

        7.7MB