Analysis

  • max time kernel
    119s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/03/2023, 13:13

General

  • Target

    DHL Confirmation AWB200519089966.exe

  • Size

    788KB

  • MD5

    7b27f3ba2751b9eb00f4ff7bee50acae

  • SHA1

    155b2977eb76171d1709c923df1f35b7e02b262c

  • SHA256

    4f72f52545b73d039d37755b2f7c1aecea39abd72fa0dedf8081a03439406ab5

  • SHA512

    f603c153b75f86997d587390f17a240ba3908b00173f83ec460e47207a7b9381d6bdb727ca75ec45a7cdcc223002540642ff4e1491a7650ec81c585e83a44f80

  • SSDEEP

    12288:tyLttx8pfCqPNSXAtOOlbwaIWy5yw2RmNSlE3H4NW7GrRyb9:3pfCWtbbwSDw23EX4NW7GrRyh

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla payload 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • 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.

  • 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 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL Confirmation AWB200519089966.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL Confirmation AWB200519089966.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2696
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZUeRqD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDE3F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4616
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2036

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpDE3F.tmp

    Filesize

    1KB

    MD5

    9a8c1aec1d4b7c1ed268f3f28b6e33af

    SHA1

    fcb948b08d295cda4e779128713663cb4eeb55b5

    SHA256

    22866ea944e6fa82ddf795dc26588dde1f4d0b36e9f8366897e9ef89c50ca677

    SHA512

    97a2ca3b60cfba12f7182a1df8a4928c51dcc460d244f590bfcc8d68a8ca142878eb2107bbbf7a6e056fdc7bb0f674c7257b34318df96bf72b4708ee6285b8f9

  • memory/2036-140-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2036-142-0x0000000005810000-0x0000000005DB4000-memory.dmp

    Filesize

    5.6MB

  • memory/2036-143-0x0000000005520000-0x0000000005530000-memory.dmp

    Filesize

    64KB

  • memory/2036-144-0x0000000006270000-0x00000000062D6000-memory.dmp

    Filesize

    408KB

  • memory/2036-145-0x0000000005520000-0x0000000005530000-memory.dmp

    Filesize

    64KB

  • memory/2036-148-0x0000000002B60000-0x0000000002BB0000-memory.dmp

    Filesize

    320KB

  • memory/2036-149-0x0000000006580000-0x000000000658A000-memory.dmp

    Filesize

    40KB

  • memory/2696-133-0x0000000000A00000-0x0000000000ACC000-memory.dmp

    Filesize

    816KB

  • memory/2696-134-0x0000000005480000-0x000000000551C000-memory.dmp

    Filesize

    624KB

  • memory/2696-135-0x0000000005520000-0x00000000055B2000-memory.dmp

    Filesize

    584KB

  • memory/2696-136-0x0000000005430000-0x0000000005440000-memory.dmp

    Filesize

    64KB