Analysis

  • max time kernel
    131s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    20-10-2021 03:17

General

  • Target

    payment copy.exe

  • Size

    463KB

  • MD5

    5ff2f079f187c67618fe79ade442dd5f

  • SHA1

    5bc25a34a2d8194c73e344ba58a25280bbcc21e9

  • SHA256

    6c4f03f9b58f8d25fb24a1ea161bf61fdafbc7050ccbd4f026098e58e2ba8fe4

  • SHA512

    402122d29aef25258e0bd65f2c7932512b7bcada0db6f672c123d94951f3697d9824f0f28b95bf45991e197a35a55d38d5702b0806053529360cff5991b55d6e

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    sg2plcpnl0023.prod.sin2.secureserver.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    User@40378

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\payment copy.exe
    "C:\Users\Admin\AppData\Local\Temp\payment copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2056
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3928

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Collection

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2056-115-0x0000000000600000-0x0000000000601000-memory.dmp
    Filesize

    4KB

  • memory/2056-117-0x00000000078C0000-0x00000000078C1000-memory.dmp
    Filesize

    4KB

  • memory/2056-118-0x00000000074C0000-0x00000000074C1000-memory.dmp
    Filesize

    4KB

  • memory/2056-119-0x0000000007630000-0x0000000007631000-memory.dmp
    Filesize

    4KB

  • memory/2056-120-0x00000000073C0000-0x00000000078BE000-memory.dmp
    Filesize

    5.0MB

  • memory/2056-121-0x00000000078B0000-0x00000000078B7000-memory.dmp
    Filesize

    28KB

  • memory/2056-122-0x000000000ADC0000-0x000000000ADC1000-memory.dmp
    Filesize

    4KB

  • memory/2056-123-0x000000000AF60000-0x000000000AFB8000-memory.dmp
    Filesize

    352KB

  • memory/3928-124-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/3928-125-0x000000000043760E-mapping.dmp
  • memory/3928-130-0x0000000004F80000-0x000000000547E000-memory.dmp
    Filesize

    5.0MB

  • memory/3928-131-0x0000000005400000-0x0000000005401000-memory.dmp
    Filesize

    4KB

  • memory/3928-132-0x0000000005DE0000-0x0000000005DE1000-memory.dmp
    Filesize

    4KB

  • memory/3928-135-0x0000000004F80000-0x000000000547E000-memory.dmp
    Filesize

    5.0MB