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Analysis

  • max time kernel
    81s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/09/2022, 12:15

General

  • Target

    Invoice-OM Telentia-YX20220926A00224.exe

  • Size

    652KB

  • MD5

    99789bc5320508920ea1c5cdbd05737b

  • SHA1

    5f4eb9eb8b8cb946a42dab79441bead2d20c68f2

  • SHA256

    511af8c57f0d44cb50d6560c0e820a5c9f6da27c307c698ffc5ccfbc57269e7d

  • SHA512

    906f3aa2e74321d570dece33b84da1f718fc11f174eb41b836d6cde9e8da566226024a6620c22612225c7e3cae2a026f0f267687f9270b400106d6a1f8d00e43

  • SSDEEP

    12288:ICe+6uFJ8mfqKtmO62/WJh71I1W6cYVl9v4QjFMsZNSs864:ICe1uFSbKwOz31W6cK7JjFMsZN26

Malware Config

Extracted

Credentials

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Invoice-OM Telentia-YX20220926A00224.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice-OM Telentia-YX20220926A00224.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:628
    • C:\Users\Admin\AppData\Local\Temp\dapi.exe
      "C:\Users\Admin\AppData\Local\Temp\dapi.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4308
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
        3⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1228

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/628-132-0x0000000000600000-0x00000000006AA000-memory.dmp

    Filesize

    680KB

  • memory/628-133-0x0000000005050000-0x00000000050EC000-memory.dmp

    Filesize

    624KB

  • memory/628-134-0x0000000006300000-0x00000000068A4000-memory.dmp

    Filesize

    5.6MB

  • memory/628-135-0x0000000005E30000-0x0000000005EC2000-memory.dmp

    Filesize

    584KB

  • memory/628-136-0x0000000005E10000-0x0000000005E1A000-memory.dmp

    Filesize

    40KB

  • memory/628-137-0x0000000008AB0000-0x0000000008FDC000-memory.dmp

    Filesize

    5.2MB

  • memory/1228-140-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1228-141-0x0000000005D00000-0x0000000005D66000-memory.dmp

    Filesize

    408KB

  • memory/1228-142-0x00000000063E0000-0x0000000006430000-memory.dmp

    Filesize

    320KB