Analysis

  • max time kernel
    130s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:21

General

  • Target

    New Order.exe

  • Size

    459KB

  • MD5

    0081ac0ee3f00f61e44cf7f127fd7d09

  • SHA1

    cce72d90b240c678d87be6b21eb64ed72af7c8c1

  • SHA256

    3b82d291e2fb62eac9616a46f75733d77f8d6287dfc54d834d60418cef7f717f

  • SHA512

    427cfa24355d8a411b08897f3de0d8f88b79aa185d0fa654e0fa7ae1f13c14b67ea3403e8ad8436fc9f8ab1b2360335d18fbb26f0a0a9f70a3233cc942a49718

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.fakly-cambodia.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Mmhh#2014

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.fakly-cambodia.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Mmhh#2014

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New Order.exe
    "C:\Users\Admin\AppData\Local\Temp\New Order.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3888
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wovalImLPvB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB20F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1484
    • C:\Users\Admin\AppData\Local\Temp\New Order.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:400
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:4028

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Query Registry

    5
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    4
    T1082

    Peripheral Device Discovery

    1
    T1120

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpB20F.tmp
      Filesize

      1KB

      MD5

      969a44d4543c710fafaa9ea77277e256

      SHA1

      4e56cf1f2440e273c88095e61308e24e071390ef

      SHA256

      b0ae06e141cd892556bd00b9494d9779e7e50dd0778f656b64e371a5636df8f3

      SHA512

      54720c317b1e661603fe050e43a71c532d4ce0d3783b07ff8873f9f6ff9aaf20f67747dc815b9f9869c45f79f7d8ef1c48d311724026e4f6d8795486df67ac8a

    • memory/400-138-0x0000000000000000-mapping.dmp
    • memory/400-139-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

    • memory/400-141-0x0000000006630000-0x0000000006680000-memory.dmp
      Filesize

      320KB

    • memory/1484-136-0x0000000000000000-mapping.dmp
    • memory/3888-130-0x0000000000950000-0x00000000009CA000-memory.dmp
      Filesize

      488KB

    • memory/3888-131-0x0000000007D30000-0x00000000082D4000-memory.dmp
      Filesize

      5.6MB

    • memory/3888-132-0x0000000007860000-0x00000000078F2000-memory.dmp
      Filesize

      584KB

    • memory/3888-133-0x0000000007850000-0x000000000785A000-memory.dmp
      Filesize

      40KB

    • memory/3888-134-0x000000000B340000-0x000000000B3DC000-memory.dmp
      Filesize

      624KB

    • memory/3888-135-0x000000000B4E0000-0x000000000B546000-memory.dmp
      Filesize

      408KB

    • memory/4028-140-0x0000000000000000-mapping.dmp