Analysis

  • max time kernel
    91s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230621-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/06/2023, 01:31

General

  • Target

    PI No. NM221022.exe

  • Size

    643KB

  • MD5

    7539471d2bfea36d7f1e2dfff7e18e95

  • SHA1

    6a04b9ae23dcfc6e160517665af762d1e019956b

  • SHA256

    b02a05196ec846bffbd82d74bb23dc20702bb82b5c3895bff1cd80672a9bbcaa

  • SHA512

    06fbc6ab497ecbe51ff3fd03bf4cdec3e7fb6fcb2239952b595e46fad3dac4bae2c1a6354e49aab1831305b765ebe5250f134b5cda64b9e1b3b15cf1ddac78f1

  • SSDEEP

    12288:U5dPG2f2NycjRhjvqBRy8Vlvn0K0foQCsM+TytIYDs2iA5xJhD:s2ZhjvqBggPb0fXpy272n5xb

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PI No. NM221022.exe
    "C:\Users\Admin\AppData\Local\Temp\PI No. NM221022.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1080
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BYDvCizzbDL.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4356
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BYDvCizzbDL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp274E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4196
    • C:\Users\Admin\AppData\Local\Temp\PI No. NM221022.exe
      "C:\Users\Admin\AppData\Local\Temp\PI No. NM221022.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3316

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uq4aymxd.us0.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp274E.tmp

          Filesize

          1KB

          MD5

          cc3dde60205583dffb0f4d5b5bc766c9

          SHA1

          30b10f179b4abca73f4804c9339df5c6383bf2eb

          SHA256

          cb8169e40eda3fc0875c0a6517c7126e63ffaa70bd634abf56aff978a5c35bfd

          SHA512

          c56e56819fb695ac3d48445f562dff015e15cbaa608e61c8b505d017cd04d3b45c5a9e423cd7d976c226a53d01ced7ef0c008a21283ccb867079498c08b4c28a

        • memory/1080-139-0x000000000AE80000-0x000000000AF1C000-memory.dmp

          Filesize

          624KB

        • memory/1080-136-0x0000000005180000-0x000000000518A000-memory.dmp

          Filesize

          40KB

        • memory/1080-137-0x0000000005460000-0x0000000005470000-memory.dmp

          Filesize

          64KB

        • memory/1080-138-0x0000000005460000-0x0000000005470000-memory.dmp

          Filesize

          64KB

        • memory/1080-135-0x00000000051E0000-0x0000000005272000-memory.dmp

          Filesize

          584KB

        • memory/1080-134-0x00000000056F0000-0x0000000005C94000-memory.dmp

          Filesize

          5.6MB

        • memory/1080-133-0x0000000000710000-0x00000000007B8000-memory.dmp

          Filesize

          672KB

        • memory/3316-190-0x0000000006FC0000-0x0000000007182000-memory.dmp

          Filesize

          1.8MB

        • memory/3316-189-0x0000000006DA0000-0x0000000006DF0000-memory.dmp

          Filesize

          320KB

        • memory/3316-146-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/3316-187-0x0000000005570000-0x0000000005580000-memory.dmp

          Filesize

          64KB

        • memory/3316-161-0x0000000005570000-0x0000000005580000-memory.dmp

          Filesize

          64KB

        • memory/4356-163-0x0000000004F60000-0x0000000004F70000-memory.dmp

          Filesize

          64KB

        • memory/4356-178-0x0000000007600000-0x000000000761A000-memory.dmp

          Filesize

          104KB

        • memory/4356-150-0x0000000005C40000-0x0000000005CA6000-memory.dmp

          Filesize

          408KB

        • memory/4356-162-0x00000000062F0000-0x000000000630E000-memory.dmp

          Filesize

          120KB

        • memory/4356-164-0x0000000004F60000-0x0000000004F70000-memory.dmp

          Filesize

          64KB

        • memory/4356-165-0x00000000068F0000-0x0000000006922000-memory.dmp

          Filesize

          200KB

        • memory/4356-166-0x00000000705E0000-0x000000007062C000-memory.dmp

          Filesize

          304KB

        • memory/4356-176-0x00000000068B0000-0x00000000068CE000-memory.dmp

          Filesize

          120KB

        • memory/4356-177-0x0000000007C40000-0x00000000082BA000-memory.dmp

          Filesize

          6.5MB

        • memory/4356-151-0x0000000005CB0000-0x0000000005D16000-memory.dmp

          Filesize

          408KB

        • memory/4356-179-0x000000007F460000-0x000000007F470000-memory.dmp

          Filesize

          64KB

        • memory/4356-180-0x0000000007670000-0x000000000767A000-memory.dmp

          Filesize

          40KB

        • memory/4356-181-0x0000000007880000-0x0000000007916000-memory.dmp

          Filesize

          600KB

        • memory/4356-182-0x0000000007830000-0x000000000783E000-memory.dmp

          Filesize

          56KB

        • memory/4356-183-0x0000000007940000-0x000000000795A000-memory.dmp

          Filesize

          104KB

        • memory/4356-184-0x0000000007920000-0x0000000007928000-memory.dmp

          Filesize

          32KB

        • memory/4356-149-0x0000000005440000-0x0000000005462000-memory.dmp

          Filesize

          136KB

        • memory/4356-147-0x00000000055A0000-0x0000000005BC8000-memory.dmp

          Filesize

          6.2MB

        • memory/4356-144-0x00000000029C0000-0x00000000029F6000-memory.dmp

          Filesize

          216KB