Analysis

  • max time kernel
    96s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    14-10-2021 06:10

General

  • Target

    b063d4a9942d8b820ad62d2359d5263d.exe

  • Size

    37KB

  • MD5

    b063d4a9942d8b820ad62d2359d5263d

  • SHA1

    ed42b11ac340a8b742ce61c2559b0154bcd75740

  • SHA256

    25cb04e6ce30f98f9cad9aa1fab3682067d2fee08cc09fe7accf657b2df04a23

  • SHA512

    a4890ca4489ca9ccf5271a957dee6e3e2bd9344189cb7096071b0d94fec007f623c83da614722b39229beaf5be1612d180767dc8110ef82262e7f7ae3e10623b

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.dpobumber.com
  • Port:
    587
  • Username:
    dpo23@dpobumber.com
  • Password:
    m~IzyO$8asT+

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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 NtSetInformationThreadHideFromDebugger 13 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 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\b063d4a9942d8b820ad62d2359d5263d.exe
    "C:\Users\Admin\AppData\Local\Temp\b063d4a9942d8b820ad62d2359d5263d.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Users\Admin\AppData\Local\Temp\b063d4a9942d8b820ad62d2359d5263d.exe
      "C:\Users\Admin\AppData\Local\Temp\b063d4a9942d8b820ad62d2359d5263d.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:584

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/584-129-0x0000000006310000-0x0000000006311000-memory.dmp
    Filesize

    4KB

  • memory/584-121-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/584-122-0x000000000043760E-mapping.dmp
  • memory/584-127-0x0000000005690000-0x0000000005691000-memory.dmp
    Filesize

    4KB

  • memory/584-128-0x00000000056E0000-0x00000000056E1000-memory.dmp
    Filesize

    4KB

  • memory/584-130-0x00000000067D0000-0x00000000067D1000-memory.dmp
    Filesize

    4KB

  • memory/584-131-0x00000000057B0000-0x00000000057B1000-memory.dmp
    Filesize

    4KB

  • memory/584-132-0x0000000005691000-0x0000000005692000-memory.dmp
    Filesize

    4KB

  • memory/2388-117-0x0000000005380000-0x0000000005381000-memory.dmp
    Filesize

    4KB

  • memory/2388-118-0x00000000055F0000-0x00000000055F1000-memory.dmp
    Filesize

    4KB

  • memory/2388-119-0x0000000005F30000-0x0000000005F77000-memory.dmp
    Filesize

    284KB

  • memory/2388-120-0x0000000006480000-0x0000000006481000-memory.dmp
    Filesize

    4KB

  • memory/2388-115-0x0000000000B80000-0x0000000000B81000-memory.dmp
    Filesize

    4KB