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Analysis

  • max time kernel
    118s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    07/12/2023, 14:20

General

  • Target

    SecuriteInfo.com.Win32.CrypterX-gen.21573.14570.exe

  • Size

    778KB

  • MD5

    b804ab53568da077d7b0e06d513c5b0a

  • SHA1

    8d9a780613e7e085d1a061289b173b78338281a6

  • SHA256

    62f110e6069b3d5860ba51cad3f0a0ad8ef97cc6d5c3f461119236667599eb39

  • SHA512

    42a827a33f03f33b6f6fab753c07f1eeed87d4d8f2cd01c274e1f403a70dc7f32552b222f9b6b051bfd4ca4fe49e86c24003478a9e5fba47af88e1a6c7014498

  • SSDEEP

    24576:fcK/7IWyO2s0cYtMmKgTW+XGXZmEypIovV1:fcs757pRYh/uXN8

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.21573.14570.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.21573.14570.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2584
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\lDOyEfxyOZ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2724
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lDOyEfxyOZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAA63.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:484
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.21573.14570.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.21573.14570.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2528

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpAA63.tmp

    Filesize

    1KB

    MD5

    46de85dee0dd6e6d6fa11bb5b5d5a7d0

    SHA1

    838bcdeeb502f0f9e0ab45e70ec386ff9b2b0775

    SHA256

    63f59dfbfbeb4c830f1c03a3341fff2d8c2debd201dd3feb5ebdfcd138235be2

    SHA512

    7c7bdd81969d19541ddcafce298b340ecfe0a2f4ebda4ab969585ae446dd20bf02dc9ccab56f69c2a122dd7dd181a4be7b580ca3d91432193425f219a3188419

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

    Filesize

    778KB

    MD5

    b804ab53568da077d7b0e06d513c5b0a

    SHA1

    8d9a780613e7e085d1a061289b173b78338281a6

    SHA256

    62f110e6069b3d5860ba51cad3f0a0ad8ef97cc6d5c3f461119236667599eb39

    SHA512

    42a827a33f03f33b6f6fab753c07f1eeed87d4d8f2cd01c274e1f403a70dc7f32552b222f9b6b051bfd4ca4fe49e86c24003478a9e5fba47af88e1a6c7014498

  • memory/2528-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2528-36-0x0000000073ED0000-0x00000000745BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2528-27-0x0000000073ED0000-0x00000000745BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2528-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2528-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2528-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2528-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2528-13-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2528-14-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2528-15-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2584-6-0x0000000005CB0000-0x0000000005D2C000-memory.dmp

    Filesize

    496KB

  • memory/2584-2-0x00000000006E0000-0x0000000000720000-memory.dmp

    Filesize

    256KB

  • memory/2584-22-0x0000000073ED0000-0x00000000745BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2584-5-0x0000000000500000-0x000000000050A000-memory.dmp

    Filesize

    40KB

  • memory/2584-4-0x00000000004F0000-0x00000000004F8000-memory.dmp

    Filesize

    32KB

  • memory/2584-3-0x00000000004D0000-0x00000000004EA000-memory.dmp

    Filesize

    104KB

  • memory/2584-1-0x0000000073ED0000-0x00000000745BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2584-0-0x0000000000ED0000-0x0000000000F98000-memory.dmp

    Filesize

    800KB

  • memory/2724-30-0x00000000026D0000-0x0000000002710000-memory.dmp

    Filesize

    256KB

  • memory/2724-31-0x000000006EDD0000-0x000000006F37B000-memory.dmp

    Filesize

    5.7MB

  • memory/2724-32-0x00000000026D0000-0x0000000002710000-memory.dmp

    Filesize

    256KB

  • memory/2724-29-0x000000006EDD0000-0x000000006F37B000-memory.dmp

    Filesize

    5.7MB

  • memory/2724-35-0x000000006EDD0000-0x000000006F37B000-memory.dmp

    Filesize

    5.7MB

  • memory/2724-28-0x00000000026D0000-0x0000000002710000-memory.dmp

    Filesize

    256KB