Analysis

  • max time kernel
    70s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    04/05/2023, 01:55

General

  • Target

    Purchase Order.exe

  • Size

    580KB

  • MD5

    ffb5ff978b543216e4b1317f7d9f97ef

  • SHA1

    a220878a48495fd5b4addcbd6553ca782a403277

  • SHA256

    b58e0980d53aa7891015a450f575a33f08a67c9b5f36674c2684d15ea78194aa

  • SHA512

    0a4ad7253c94039187aa4fc805f963b4e2ebeabc8d13f84755bcacd23844be78cc6f0eda609bb09fadbb5ed64dbf16686d06bef1aa253951c6c5e3c12028ee77

  • SSDEEP

    12288:gVdoVVzEig/V8YBCTGReneNbQjJ+mgeoQscaCqNBv:ooVdO/VaG0ObQt+miQs3H

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:324
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\aPCyDwLsApDgb.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1072
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aPCyDwLsApDgb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7282.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:608
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1408

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7282.tmp

    Filesize

    1KB

    MD5

    cc1eb0ef2681f64dfca4643d91e4a493

    SHA1

    dad407d419e3471106a5f428b2aacbbf8e82a336

    SHA256

    11ba5e5aecdb53c8ad304b63b09e9f6cb8d7e421b717bae0c059e8e9daea0cfb

    SHA512

    710c3a63927149652e24bf618bb874e73399dbb9e569c08c492bf0f36fc40ff517547f1487bb648677acd892e9a9f9a71919ea62a2bc893951b9ab7e25c0f034

  • memory/324-55-0x0000000004420000-0x0000000004460000-memory.dmp

    Filesize

    256KB

  • memory/324-56-0x0000000000510000-0x0000000000520000-memory.dmp

    Filesize

    64KB

  • memory/324-57-0x0000000004420000-0x0000000004460000-memory.dmp

    Filesize

    256KB

  • memory/324-58-0x00000000006A0000-0x00000000006AC000-memory.dmp

    Filesize

    48KB

  • memory/324-59-0x0000000005460000-0x00000000054CA000-memory.dmp

    Filesize

    424KB

  • memory/324-67-0x0000000004E10000-0x0000000004E42000-memory.dmp

    Filesize

    200KB

  • memory/324-54-0x00000000000F0000-0x0000000000188000-memory.dmp

    Filesize

    608KB

  • memory/1072-79-0x0000000002540000-0x0000000002580000-memory.dmp

    Filesize

    256KB

  • memory/1408-68-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1408-71-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1408-70-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1408-72-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1408-73-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1408-75-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1408-77-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1408-69-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1408-78-0x0000000004F30000-0x0000000004F70000-memory.dmp

    Filesize

    256KB

  • memory/1408-80-0x0000000004F30000-0x0000000004F70000-memory.dmp

    Filesize

    256KB