Analysis

  • max time kernel
    105s
  • max time network
    13s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    27-07-2021 15:06

General

  • Target

    SWIFT_987867T8E.exe

  • Size

    1.1MB

  • MD5

    e7e6dd904cf4e8914173e3c1144d457f

  • SHA1

    da2e7749856bb874dab798c6e73d643f2751250a

  • SHA256

    3ff843810cdddb3d63f8c88302b5b37293a28b5bdd5d71193851c312d2abcd28

  • SHA512

    8e9d6f764037476f9244b08fbff9389b66ff5bf4a0104241414041421f56c164a2704ba7bc4b8b515305527df76103ac5ab61540cdf8e804fe92243bdc0d2f42

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.vivaldi.net
  • Port:
    587
  • Username:
    rexsativa@vivaldi.net
  • Password:
    panosoktenio@gmail.com

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SWIFT_987867T8E.exe
    "C:\Users\Admin\AppData\Local\Temp\SWIFT_987867T8E.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BaTmlxzlPkyvXu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFE9A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1816
    • C:\Users\Admin\AppData\Local\Temp\SWIFT_987867T8E.exe
      "C:\Users\Admin\AppData\Local\Temp\SWIFT_987867T8E.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:548

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpFE9A.tmp
    MD5

    1047e36df3bf23397ec911ac3c77caea

    SHA1

    e6674ea5d6e02068322ee802b9c90f9eb516c339

    SHA256

    32dac07d4020bd57575468400bdb3e272d270dfcea62aaa9fba634b23b8b99a5

    SHA512

    48fc2135f86144f8c3edbd617f0871aaaea96f7b7f0df7f601d9c3b657888c36c0c80c87fa5c304f9844a8eaeb5a67533c3dd274943ee28f596fe70dc0057b86

  • memory/548-67-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/548-68-0x000000000043749E-mapping.dmp
  • memory/548-69-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/548-71-0x00000000011A0000-0x00000000011A1000-memory.dmp
    Filesize

    4KB

  • memory/1816-65-0x0000000000000000-mapping.dmp
  • memory/1996-59-0x0000000001290000-0x0000000001291000-memory.dmp
    Filesize

    4KB

  • memory/1996-61-0x0000000004E80000-0x0000000004E81000-memory.dmp
    Filesize

    4KB

  • memory/1996-62-0x0000000000420000-0x000000000043B000-memory.dmp
    Filesize

    108KB

  • memory/1996-63-0x0000000005300000-0x000000000537D000-memory.dmp
    Filesize

    500KB

  • memory/1996-64-0x0000000000B50000-0x0000000000B89000-memory.dmp
    Filesize

    228KB