Analysis

  • max time kernel
    128s
  • max time network
    40s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    07-07-2020 18:24

General

  • Target

    Q0001DA.exe

  • Size

    720KB

  • MD5

    44e580df6cc98551d69220f7e3201684

  • SHA1

    0544efea1c311e4fc93f95005aed42838d217b3a

  • SHA256

    15de86087381df23faff003d4d1f7e5fb361ef730c28226405842fba3845af1f

  • SHA512

    01ac5ea003900245507d15b20e430ff2f5b392de0db015fba150fa46e87b38d25c8feae0c688c8b642b692b1cd31b35e3fe6d6da73b0672087e586c0d6d56f6f

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    hendrick.jorgen@yandex.ru
  • Password:
    Mix2lower12?..

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops startup file 1 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Q0001DA.exe
    "C:\Users\Admin\AppData\Local\Temp\Q0001DA.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1484
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      PID:1592
    • C:\Users\Admin\AppData\Local\Temp\Q0001DA.exe
      "C:\Users\Admin\AppData\Local\Temp\Q0001DA.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1652

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1592-0-0x0000000000000000-mapping.dmp
  • memory/1652-2-0x00000000004A3260-mapping.dmp
  • memory/1652-1-0x0000000000400000-0x00000000004A5000-memory.dmp
    Filesize

    660KB

  • memory/1652-3-0x0000000000400000-0x00000000004A5000-memory.dmp
    Filesize

    660KB

  • memory/1652-4-0x0000000000400000-0x00000000004A5000-memory.dmp
    Filesize

    660KB

  • memory/1652-5-0x0000000002180000-0x00000000021CC000-memory.dmp
    Filesize

    304KB

  • memory/1652-6-0x0000000002272000-0x0000000002273000-memory.dmp
    Filesize

    4KB