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Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    20/11/2023, 06:52

General

  • Target

    cargo_023354663.exe

  • Size

    741KB

  • MD5

    d33d4e3f2ee5d8629f2deedbdbfe5199

  • SHA1

    f3ca6f75cba4394e2b52792c12bd0988673e7560

  • SHA256

    3d05623da2f66ee7073d88d4e4703551e779a136d0296f8d4073c52c93a469a0

  • SHA512

    8d45ba0ea829b88ac6fbadfc1e04cf9f0afd3f173f9bb68b422dabaed8f339cf05dee237530335d2d2ead25ae097d4ebec99173364f03eef460583ff0d8e469b

  • SSDEEP

    12288:6elc5Fqrvh3ukGR8FFkbYJeu+yk5uvlWwjFLGTe/+SSS3sOiVdiaPVm+Z:yfuvRVMcflcOCicJZ

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
  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cargo_023354663.exe
    "C:\Users\Admin\AppData\Local\Temp\cargo_023354663.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KZkzSiXud.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2484
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KZkzSiXud" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7A9C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3020
    • C:\Users\Admin\AppData\Local\Temp\cargo_023354663.exe
      "C:\Users\Admin\AppData\Local\Temp\cargo_023354663.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2676

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7A9C.tmp

    Filesize

    1KB

    MD5

    8af2bc4c13e8dcbaafb8ee63ffd9c5fe

    SHA1

    ea184d78fe2212a6d18dfd64978a9642b3bb7505

    SHA256

    030f039d6ccb3668512b53ffa212cedcd0c88bff0f273b58139bf5d3edc437af

    SHA512

    74d813772f012224d4cd33a40d9a085deb4ac99f327ad2c2ef760f0e957ebaa70ac5760eea81e0a7ed9af74dd27dfc2a3f79ef81403bf321cf2e4820c19969fb

  • C:\Users\Admin\AppData\Roaming\Micosoft Excel 2023\Micosoft Excel 2023.exe

    Filesize

    741KB

    MD5

    d33d4e3f2ee5d8629f2deedbdbfe5199

    SHA1

    f3ca6f75cba4394e2b52792c12bd0988673e7560

    SHA256

    3d05623da2f66ee7073d88d4e4703551e779a136d0296f8d4073c52c93a469a0

    SHA512

    8d45ba0ea829b88ac6fbadfc1e04cf9f0afd3f173f9bb68b422dabaed8f339cf05dee237530335d2d2ead25ae097d4ebec99173364f03eef460583ff0d8e469b

  • memory/2424-24-0x0000000074BF0000-0x00000000752DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2424-1-0x0000000074BF0000-0x00000000752DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2424-2-0x0000000004C90000-0x0000000004CD0000-memory.dmp

    Filesize

    256KB

  • memory/2424-3-0x00000000002F0000-0x0000000000306000-memory.dmp

    Filesize

    88KB

  • memory/2424-4-0x00000000004A0000-0x00000000004AA000-memory.dmp

    Filesize

    40KB

  • memory/2424-5-0x0000000005440000-0x00000000054BC000-memory.dmp

    Filesize

    496KB

  • memory/2424-0-0x0000000000BC0000-0x0000000000C80000-memory.dmp

    Filesize

    768KB

  • memory/2484-29-0x0000000002350000-0x0000000002390000-memory.dmp

    Filesize

    256KB

  • memory/2484-30-0x000000006F0F0000-0x000000006F69B000-memory.dmp

    Filesize

    5.7MB

  • memory/2484-34-0x000000006F0F0000-0x000000006F69B000-memory.dmp

    Filesize

    5.7MB

  • memory/2484-31-0x0000000002350000-0x0000000002390000-memory.dmp

    Filesize

    256KB

  • memory/2676-16-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2676-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2676-26-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2676-27-0x0000000073A00000-0x00000000740EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2676-28-0x0000000004820000-0x0000000004860000-memory.dmp

    Filesize

    256KB

  • memory/2676-15-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2676-17-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2676-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2676-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2676-13-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2676-35-0x0000000073A00000-0x00000000740EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2676-36-0x0000000004820000-0x0000000004860000-memory.dmp

    Filesize

    256KB