Analysis

  • max time kernel
    142s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:02

General

  • Target

    new order.exe

  • Size

    454KB

  • MD5

    40af518941f73ee0867e18c6f44fd742

  • SHA1

    36e7edd6ab29ec11b60f95b2fa9289430fa4addb

  • SHA256

    ec35d01b2a195c348b20565d96de7d5dc6385dd23e7452b55ee4200cca7490fa

  • SHA512

    26ec2e83620962c2f714c0db01659df4f9baf94fb506177e6402197af4c94efbb2d584e08157ad1ce0e9ebd56b16130f0c6fc40e2b925dfa1340cb49690194ac

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Iqb*)yC2

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Iqb*)yC2

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.

  • 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
  • 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 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 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 computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:432
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DhphbimQQk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE714.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1760
    • C:\Users\Admin\AppData\Local\Temp\new order.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:212
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:536

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\new order.exe.log

      Filesize

      408B

      MD5

      8adbb2cb7759fdcbc51cfbf0bfd7c867

      SHA1

      f7549e6ea430e7d64b3afb3fc27c77ed5122f85b

      SHA256

      c67092561e4b1472672374c3439004e2bc0191d9a901cde2b8b69a2d34dc6297

      SHA512

      f465311e884dd82e3152959b6a59ac8d6be0a056a1cfddabbcc6714079a2269cd5c09b2b8fbc87a9ec3323c531383526ae19ef24fed100dec80730fae0d79991

    • C:\Users\Admin\AppData\Local\Temp\tmpE714.tmp

      Filesize

      1KB

      MD5

      6c94663bb78f1742e19fd88297a34b00

      SHA1

      5fbffccf6ba6a40f874e1c8846dcb6cb676e6be2

      SHA256

      c5146c5e91eba2f90b06c83a90b07757de8f9dd6dcd60d4497f9e3db902b1284

      SHA512

      12bbedf6f2eda35a3210db4a5ae4673c06bfdd73101120e8f939ec5ede355dcf9c28855e4d3c28d324bfdc58617668d7bc65518eb88ae425532fcad24deffb31

    • memory/212-133-0x0000000000000000-mapping.dmp

    • memory/212-134-0x0000000000400000-0x0000000000452000-memory.dmp

      Filesize

      328KB

    • memory/212-136-0x0000000075570000-0x0000000075B21000-memory.dmp

      Filesize

      5.7MB

    • memory/432-130-0x0000000075570000-0x0000000075B21000-memory.dmp

      Filesize

      5.7MB

    • memory/536-137-0x0000000000000000-mapping.dmp

    • memory/1760-131-0x0000000000000000-mapping.dmp