Analysis

  • max time kernel
    137s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    18-10-2021 09:38

General

  • Target

    ORDER#321550 YOEW AKA DWC-PM-1173-121 International DMCC.exe

  • Size

    455KB

  • MD5

    ff32efcb494ca35aa47a2d0d647d3546

  • SHA1

    390a510f45a735aa14940fa46370be62b721a004

  • SHA256

    f864c078bb8a27ef5ff44af23b3829894febdba1a0dd692fdd423717086ebd4e

  • SHA512

    6f117fe2d535674dd6c973bf1e082cb1e26b4c3853cec404565c7e390c5cbd087ee9004c25bc1c834b72f89eaf739aea728ee0118bb4ea9e8a6f606dcda55173

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ValSta@34zzz

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ORDER#321550 YOEW AKA DWC-PM-1173-121 International DMCC.exe
    "C:\Users\Admin\AppData\Local\Temp\ORDER#321550 YOEW AKA DWC-PM-1173-121 International DMCC.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1328
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iCEiPbgmtrby" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5C15.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2044
    • C:\Users\Admin\AppData\Local\Temp\ORDER#321550 YOEW AKA DWC-PM-1173-121 International DMCC.exe
      "C:\Users\Admin\AppData\Local\Temp\ORDER#321550 YOEW AKA DWC-PM-1173-121 International DMCC.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1408

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1328-54-0x0000000001140000-0x0000000001141000-memory.dmp

    Filesize

    4KB

  • memory/1328-56-0x0000000075821000-0x0000000075823000-memory.dmp

    Filesize

    8KB

  • memory/1328-57-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

    Filesize

    4KB

  • memory/1328-58-0x0000000000460000-0x0000000000468000-memory.dmp

    Filesize

    32KB

  • memory/1328-59-0x0000000000DD0000-0x0000000000E27000-memory.dmp

    Filesize

    348KB

  • memory/1408-61-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1408-63-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1408-62-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1408-64-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1408-65-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1408-66-0x0000000000436D6E-mapping.dmp

  • memory/1408-67-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1408-69-0x0000000004BE0000-0x0000000004BE1000-memory.dmp

    Filesize

    4KB

  • memory/2044-60-0x0000000000000000-mapping.dmp