Analysis

  • max time kernel
    135s
  • max time network
    119s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    11-05-2021 10:30

General

  • Target

    vkFhiUvXw8joCXn.exe

  • Size

    851KB

  • MD5

    7e6a19d305a690e887020b9fe1b57488

  • SHA1

    a283a4245b4b0b979ec7e63bda0fa41725b7adec

  • SHA256

    ef493fe2688db7c97fd7e0af12bae0b42aeee9c1c7ccf241865e1cfa5cb50cac

  • SHA512

    d1e3b9608ef58e25992ffa11f2d6550e633c48cd1888edc7c82530b31fff3edb922dd1a0f22384623bc6371409f8daa6936d968fcb7ceb35e96ce76a4894f585

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    wasstech.com
  • Port:
    587
  • Username:
    psme@wasstech.com
  • Password:
    Sunray2700@@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\vkFhiUvXw8joCXn.exe
    "C:\Users\Admin\AppData\Local\Temp\vkFhiUvXw8joCXn.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:800
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1352

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/800-114-0x0000000000370000-0x0000000000371000-memory.dmp
    Filesize

    4KB

  • memory/800-116-0x0000000004D50000-0x0000000004D51000-memory.dmp
    Filesize

    4KB

  • memory/800-117-0x0000000005320000-0x0000000005321000-memory.dmp
    Filesize

    4KB

  • memory/800-118-0x0000000004EC0000-0x0000000004EC1000-memory.dmp
    Filesize

    4KB

  • memory/800-119-0x0000000004E40000-0x0000000004E41000-memory.dmp
    Filesize

    4KB

  • memory/800-120-0x0000000005080000-0x0000000005081000-memory.dmp
    Filesize

    4KB

  • memory/800-121-0x0000000004E20000-0x000000000531E000-memory.dmp
    Filesize

    5.0MB

  • memory/800-122-0x0000000004EB0000-0x0000000004EB4000-memory.dmp
    Filesize

    16KB

  • memory/800-123-0x0000000000BD0000-0x0000000000C91000-memory.dmp
    Filesize

    772KB

  • memory/800-124-0x0000000000DE0000-0x0000000000E6C000-memory.dmp
    Filesize

    560KB

  • memory/1352-125-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1352-126-0x000000000043762E-mapping.dmp
  • memory/1352-131-0x0000000005530000-0x0000000005A2E000-memory.dmp
    Filesize

    5.0MB

  • memory/1352-132-0x00000000055B0000-0x00000000055B1000-memory.dmp
    Filesize

    4KB

  • memory/1352-133-0x0000000006220000-0x0000000006221000-memory.dmp
    Filesize

    4KB