Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231130-en
  • resource tags

    arch:x64arch:x86image:win7-20231130-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2023 07:25

General

  • Target

    INVOICE.exe

  • Size

    697KB

  • MD5

    ba367cc4cfb9f9b18f2a776ffa4fc4aa

  • SHA1

    204d17e23d81391809aab7e857b7a918f790fa98

  • SHA256

    9fdc30c0a41d836508108bd98ce5176a6739f8ef4c0395bb81e8d85fe670d86f

  • SHA512

    ab376384d3289fa54cfe4543b998abbe280d68e74b2e110827df239208c21a1ad0820df28471248590f83167c438be5c3d2db7fa0e6c3e6deaf62b310b559345

  • SSDEEP

    12288:Ubl5nF8teO9wP7uZ15vvFIY1Z+1OBhDe4CTrTVMK9XC+iinnjhZj4dqrlbJ:4l+eOq+r3Fl141OBle4C5hfnzHhbJ

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.

  • 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\INVOICE.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\eTjKPkz.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2252
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eTjKPkz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5A31.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3068
    • C:\Users\Admin\AppData\Local\Temp\INVOICE.exe
      "C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp5A31.tmp

    Filesize

    1KB

    MD5

    0454bf9ff157cc4a9c431ed0d1cdf0cd

    SHA1

    dd10366cbf4f8d532beabb9a420b89aed61f1259

    SHA256

    4d618cd0cf5f51e202e978a5f651e814113b34eb797bef1450fd1204c0064308

    SHA512

    aa115f1470a8c25ceff9b89da85d4815931bee8a25160c316ed346711aecf0cf5d83b54a35b0427b36238481f9b7cfed697441b2db72258be654bc574d01b80a

  • memory/2220-0-0x0000000000950000-0x0000000000A04000-memory.dmp

    Filesize

    720KB

  • memory/2220-1-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2220-2-0x0000000000830000-0x0000000000870000-memory.dmp

    Filesize

    256KB

  • memory/2220-3-0x00000000005B0000-0x00000000005C8000-memory.dmp

    Filesize

    96KB

  • memory/2220-4-0x00000000005D0000-0x00000000005D8000-memory.dmp

    Filesize

    32KB

  • memory/2220-5-0x00000000005E0000-0x00000000005EA000-memory.dmp

    Filesize

    40KB

  • memory/2220-6-0x00000000052D0000-0x000000000534A000-memory.dmp

    Filesize

    488KB

  • memory/2220-25-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2252-30-0x000000006E9F0000-0x000000006EF9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2252-26-0x000000006E9F0000-0x000000006EF9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2252-34-0x000000006E9F0000-0x000000006EF9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2252-32-0x0000000002980000-0x00000000029C0000-memory.dmp

    Filesize

    256KB

  • memory/2252-33-0x0000000002980000-0x00000000029C0000-memory.dmp

    Filesize

    256KB

  • memory/2252-28-0x0000000002980000-0x00000000029C0000-memory.dmp

    Filesize

    256KB

  • memory/2716-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2716-18-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2716-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2716-16-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2716-14-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2716-31-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2716-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2716-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2716-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2716-35-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2716-36-0x00000000044C0000-0x0000000004500000-memory.dmp

    Filesize

    256KB