Analysis

  • max time kernel
    131s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    25-10-2021 11:02

General

  • Target

    54342346655_88_876_9_276545_28765566566.exe

  • Size

    382KB

  • MD5

    3cb3d290f92bebc3686144ccd2781a7b

  • SHA1

    b6624d19e6173ef0ae13079dcc2da92db4cfe73e

  • SHA256

    ea9baa1f1f247269768ac113a6e19f639446c6019a36665f94188a603dacaeed

  • SHA512

    751903d038fb4946bf73419ee6db7c357eebe6b856422a52cd2e5ff43a703bd6bc8a6fab57b483cfc7e400df7425683488cf970668dd55a10d5705bc5a57074b

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.randebann.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    nZ(hZCp1

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 IoCs
  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\54342346655_88_876_9_276545_28765566566.exe
    "C:\Users\Admin\AppData\Local\Temp\54342346655_88_876_9_276545_28765566566.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1312
    • C:\Users\Admin\AppData\Local\Temp\54342346655_88_876_9_276545_28765566566.exe
      "C:\Users\Admin\AppData\Local\Temp\54342346655_88_876_9_276545_28765566566.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1592

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1312-54-0x0000000000C20000-0x0000000000C21000-memory.dmp

    Filesize

    4KB

  • memory/1312-56-0x0000000000450000-0x0000000000457000-memory.dmp

    Filesize

    28KB

  • memory/1312-57-0x0000000004A50000-0x0000000004A51000-memory.dmp

    Filesize

    4KB

  • memory/1312-58-0x00000000048A0000-0x00000000048F7000-memory.dmp

    Filesize

    348KB

  • memory/1592-59-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1592-60-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1592-61-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1592-62-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1592-63-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1592-64-0x0000000000436C7E-mapping.dmp

  • memory/1592-65-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1592-67-0x0000000004A60000-0x0000000004A61000-memory.dmp

    Filesize

    4KB