Analysis

  • max time kernel
    91s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 22:22

General

  • Target

    bank draft copy.exe

  • Size

    591KB

  • MD5

    bb70f93b4b431d171998766226fcb70b

  • SHA1

    036869fbc836fe69690317399612a1ac75a6d526

  • SHA256

    bf16393640303afe03a092d605a39a69d05158bce15d690128ef2b2103dfa5c7

  • SHA512

    9c96a98bb5a798cfc9d311a964821c8ecb243ea2b5bf2873c19bc9faee9a4683762de44980c90959c82ec42def7a2d1339798e140ebfe2ec501d395f75df1886

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.labiconics.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Labiconics@2018

Signatures

  • AgentTesla

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

  • AgentTesla Payload 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
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bank draft copy.exe
    "C:\Users\Admin\AppData\Local\Temp\bank draft copy.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4144
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DgagtScck" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7AED.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1992
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1916

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7AED.tmp

    Filesize

    1KB

    MD5

    3c4e769f7d99740c8d2c2f4c242683a9

    SHA1

    0a3da279813d4342adf24d3f3b0e828dd195f4f4

    SHA256

    3a0ade968bc4770a5dd12ede45440e7784140d6c5e907f036a4409c2efefcb0e

    SHA512

    a85dc38894a1ce384201e3ac89e525347557143bb45b04a8addf43a58f824f3040aa7ab79a67dbf1a0c4d203d87ae0238431cee14d3e98fc725997b2f07f3525

  • memory/1916-136-0x0000000000000000-mapping.dmp

  • memory/1916-137-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1916-138-0x0000000005FA0000-0x0000000006006000-memory.dmp

    Filesize

    408KB

  • memory/1916-139-0x0000000006860000-0x00000000068B0000-memory.dmp

    Filesize

    320KB

  • memory/1916-140-0x0000000006840000-0x000000000684A000-memory.dmp

    Filesize

    40KB

  • memory/1992-134-0x0000000000000000-mapping.dmp

  • memory/4144-130-0x0000000000370000-0x000000000040A000-memory.dmp

    Filesize

    616KB

  • memory/4144-131-0x0000000005420000-0x00000000059C4000-memory.dmp

    Filesize

    5.6MB

  • memory/4144-132-0x0000000004DA0000-0x0000000004E32000-memory.dmp

    Filesize

    584KB

  • memory/4144-133-0x00000000059D0000-0x0000000005A6C000-memory.dmp

    Filesize

    624KB