Analysis

  • max time kernel
    68s
  • max time network
    73s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 14:41

General

  • Target

    Purchase Order......21-11-22.exe

  • Size

    718KB

  • MD5

    34b26dab00fad0c5d70277e58cb0b546

  • SHA1

    7af5c0c05fc740c7dfa410235b6781c2f08bd996

  • SHA256

    b1614082023a76f25d59eee39a1fc2377d7b678e5c6ad7d451f0477b374d6660

  • SHA512

    ceb27d8fb939418e5b09a3e3897f93357b0404fcc8be385522494ec8d46aa14a933fdd293522c0ef50caf40d756bcc8fef95a0ec530ea40a4b3849558a2ce045

  • SSDEEP

    12288:6PMsbBtXrT1rAChzf0y/lqwVaG/TTcrmvPd3FRu+fTbML+mxh+4NPBW4/nuisOLw:21rbhzfDtqAbbT3vY+fDmxhFggux+L7m

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5467926675:AAHl4rZuFMBsQAWPk1ynhSWYCGcDxYqlg7g/

Signatures

  • AgentTesla

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

  • 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.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order......21-11-22.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order......21-11-22.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Purchase Order......21-11-22.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:880
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order......21-11-22.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Order......21-11-22.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:432

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/432-68-0x000000000043761E-mapping.dmp

  • memory/432-62-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/432-63-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/432-72-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/432-65-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/432-70-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/432-67-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/432-66-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/880-59-0x0000000000000000-mapping.dmp

  • memory/880-74-0x000000006E770000-0x000000006ED1B000-memory.dmp

    Filesize

    5.7MB

  • memory/880-75-0x000000006E770000-0x000000006ED1B000-memory.dmp

    Filesize

    5.7MB

  • memory/1416-58-0x0000000004DB0000-0x0000000004E26000-memory.dmp

    Filesize

    472KB

  • memory/1416-56-0x0000000000600000-0x0000000000618000-memory.dmp

    Filesize

    96KB

  • memory/1416-61-0x0000000005D80000-0x0000000005DBC000-memory.dmp

    Filesize

    240KB

  • memory/1416-54-0x0000000000230000-0x00000000002EA000-memory.dmp

    Filesize

    744KB

  • memory/1416-55-0x0000000074DC1000-0x0000000074DC3000-memory.dmp

    Filesize

    8KB

  • memory/1416-57-0x00000000005E0000-0x00000000005EC000-memory.dmp

    Filesize

    48KB