Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/08/2023, 15:10

General

  • Target

    kTg1jSEh7699WIj.exe

  • Size

    711KB

  • MD5

    85e8c0d50d714e0e0102724f2abe9965

  • SHA1

    a0b8e27c0e6e905cc34c62f39a544973d7b17a7e

  • SHA256

    d80553d0154e6796beb27196164a28db62c57be2fc5033678d08510da2bfb732

  • SHA512

    5ce6713dab212c22170dce6751672b3c73f3ee3cc06dff24b74efe7e0f8ca96c88b7f5b44a405a6f80df536347c3da51460a7a05f88199ac592b7021e531e1a1

  • SSDEEP

    12288:V0dC0hj45NEd5KAhjwUNNOlElUYzhAV7QZ8boQX6/0qCYpEPNoaHmoN+F:V0QSjuNEd5KoulEmKWY8bLe0spkoZ6+

Malware Config

Extracted

Family

agenttesla

Credentials

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\kTg1jSEh7699WIj.exe
    "C:\Users\Admin\AppData\Local\Temp\kTg1jSEh7699WIj.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3448
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\kTg1jSEh7699WIj.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2180
    • C:\Users\Admin\AppData\Local\Temp\kTg1jSEh7699WIj.exe
      "C:\Users\Admin\AppData\Local\Temp\kTg1jSEh7699WIj.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:488

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\kTg1jSEh7699WIj.exe.log

          Filesize

          1KB

          MD5

          8ec831f3e3a3f77e4a7b9cd32b48384c

          SHA1

          d83f09fd87c5bd86e045873c231c14836e76a05c

          SHA256

          7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

          SHA512

          26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nscpidvm.4w5.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • memory/488-9-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/488-61-0x00000000072C0000-0x0000000007310000-memory.dmp

          Filesize

          320KB

        • memory/488-50-0x0000000003200000-0x0000000003210000-memory.dmp

          Filesize

          64KB

        • memory/488-49-0x00000000748A0000-0x0000000075050000-memory.dmp

          Filesize

          7.7MB

        • memory/488-15-0x00000000058F0000-0x0000000005956000-memory.dmp

          Filesize

          408KB

        • memory/488-14-0x0000000003200000-0x0000000003210000-memory.dmp

          Filesize

          64KB

        • memory/488-13-0x00000000748A0000-0x0000000075050000-memory.dmp

          Filesize

          7.7MB

        • memory/2180-21-0x0000000005C60000-0x0000000005C82000-memory.dmp

          Filesize

          136KB

        • memory/2180-33-0x0000000004E30000-0x0000000004E40000-memory.dmp

          Filesize

          64KB

        • memory/2180-59-0x00000000748A0000-0x0000000075050000-memory.dmp

          Filesize

          7.7MB

        • memory/2180-56-0x0000000007A40000-0x0000000007A48000-memory.dmp

          Filesize

          32KB

        • memory/2180-55-0x0000000007A60000-0x0000000007A7A000-memory.dmp

          Filesize

          104KB

        • memory/2180-54-0x0000000007950000-0x000000000795E000-memory.dmp

          Filesize

          56KB

        • memory/2180-16-0x0000000004E40000-0x0000000004E76000-memory.dmp

          Filesize

          216KB

        • memory/2180-17-0x00000000748A0000-0x0000000075050000-memory.dmp

          Filesize

          7.7MB

        • memory/2180-18-0x0000000004E30000-0x0000000004E40000-memory.dmp

          Filesize

          64KB

        • memory/2180-19-0x0000000004E30000-0x0000000004E40000-memory.dmp

          Filesize

          64KB

        • memory/2180-20-0x00000000054B0000-0x0000000005AD8000-memory.dmp

          Filesize

          6.2MB

        • memory/2180-53-0x0000000004E30000-0x0000000004E40000-memory.dmp

          Filesize

          64KB

        • memory/2180-52-0x00000000748A0000-0x0000000075050000-memory.dmp

          Filesize

          7.7MB

        • memory/2180-31-0x0000000005E00000-0x0000000005E66000-memory.dmp

          Filesize

          408KB

        • memory/2180-32-0x00000000063F0000-0x000000000640E000-memory.dmp

          Filesize

          120KB

        • memory/2180-51-0x0000000007980000-0x0000000007A16000-memory.dmp

          Filesize

          600KB

        • memory/2180-34-0x00000000069D0000-0x0000000006A02000-memory.dmp

          Filesize

          200KB

        • memory/2180-35-0x0000000070520000-0x000000007056C000-memory.dmp

          Filesize

          304KB

        • memory/2180-45-0x00000000069B0000-0x00000000069CE000-memory.dmp

          Filesize

          120KB

        • memory/2180-46-0x0000000007D40000-0x00000000083BA000-memory.dmp

          Filesize

          6.5MB

        • memory/2180-47-0x0000000007700000-0x000000000771A000-memory.dmp

          Filesize

          104KB

        • memory/2180-48-0x0000000007770000-0x000000000777A000-memory.dmp

          Filesize

          40KB

        • memory/3448-3-0x0000000005610000-0x00000000056A2000-memory.dmp

          Filesize

          584KB

        • memory/3448-2-0x0000000005AE0000-0x0000000006084000-memory.dmp

          Filesize

          5.6MB

        • memory/3448-8-0x00000000057E0000-0x00000000057F0000-memory.dmp

          Filesize

          64KB

        • memory/3448-4-0x00000000057E0000-0x00000000057F0000-memory.dmp

          Filesize

          64KB

        • memory/3448-0-0x0000000000B70000-0x0000000000C26000-memory.dmp

          Filesize

          728KB

        • memory/3448-5-0x00000000056D0000-0x00000000056DA000-memory.dmp

          Filesize

          40KB

        • memory/3448-6-0x00000000058E0000-0x000000000597C000-memory.dmp

          Filesize

          624KB

        • memory/3448-7-0x00000000748A0000-0x0000000075050000-memory.dmp

          Filesize

          7.7MB

        • memory/3448-12-0x00000000748A0000-0x0000000075050000-memory.dmp

          Filesize

          7.7MB

        • memory/3448-1-0x00000000748A0000-0x0000000075050000-memory.dmp

          Filesize

          7.7MB