Analysis

  • max time kernel
    94s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 01:21

General

  • Target

    Order.exe

  • Size

    733KB

  • MD5

    f98e4ca30b7509d7e58dc1f1c892bca3

  • SHA1

    ead5e654675beecf472895aaf781bea0337689ff

  • SHA256

    c1a5a50629d48e6259bd63ebc5e9d31d6b076b30edc1b3bd138e10fcc03a29c8

  • SHA512

    7a5312aa43dea2b5b167080d73c98a029a90677bce4289ea8c88d12523e113388596c7eeebde13b7d36b486997110eddeb7e7d30a2a974f8296da52b8e376742

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chosen@@@123

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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.

  • 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 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Order.exe
    "C:\Users\Admin\AppData\Local\Temp\Order.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 SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1512
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QPcnNesmP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF883.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2036
    • C:\Users\Admin\AppData\Local\Temp\Order.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:1060

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF883.tmp

    Filesize

    1KB

    MD5

    4b32d7958f712ab94d9b190fe09dfc6d

    SHA1

    54660b796b02ce4b681a03812adde148ae70c162

    SHA256

    bfd463029bd56000f3c5bf09b25459f343cb9d4ec679794542ff539cdc132a81

    SHA512

    782f0a9d7e30aebcc2da468c5d34fec076c914196a8e4c2f97871a32ca9acecbb78519501ed25027fc5f4fe7baa49f75ebc8a2b4837dce8048f771d2ae66a758

  • memory/1060-64-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1060-59-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1060-60-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1060-62-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1060-63-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1060-65-0x000000000044B99E-mapping.dmp

  • memory/1060-67-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1060-69-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1060-71-0x0000000074640000-0x0000000074BEB000-memory.dmp

    Filesize

    5.7MB

  • memory/1512-56-0x0000000000219000-0x000000000022A000-memory.dmp

    Filesize

    68KB

  • memory/1512-55-0x0000000074640000-0x0000000074BEB000-memory.dmp

    Filesize

    5.7MB

  • memory/1512-54-0x0000000076421000-0x0000000076423000-memory.dmp

    Filesize

    8KB

  • memory/2036-57-0x0000000000000000-mapping.dmp