Analysis

  • max time kernel
    140s
  • max time network
    140s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    13-07-2020 11:17

General

  • Target

    Payment Request - invoice G3181992 [200126-008251].exe

  • Size

    937KB

  • MD5

    02830740233e5793de29be7618e2cde3

  • SHA1

    35c14a539ab284b9a01ad2f93c4e72c8a496262f

  • SHA256

    bb21ce06094557cbe5e86781ed3d5fa92edaea51761bd1a0b4f9a58a7ad3b30b

  • SHA512

    f782c0c6a1bf548f35d1f2472be2956e11e2c978e21957158f0228949ec275ad06e079d268ad674d709dd74279809380c1fdc3ebec7e8f0d8014a2859a92df16

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Sages101*

Signatures

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • AgentTesla

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

  • 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.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • UPX packed file 3 IoCs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Request - invoice G3181992 [200126-008251].exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Request - invoice G3181992 [200126-008251].exe"
    1⤵
    • Suspicious behavior: MapViewOfSection
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:3908
    • C:\Users\Admin\AppData\Local\Temp\Payment Request - invoice G3181992 [200126-008251].exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Request - invoice G3181992 [200126-008251].exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3428

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/3428-0-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/3428-1-0x00000000004A2680-mapping.dmp
  • memory/3428-2-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/3428-3-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/3428-4-0x00000000009D0000-0x0000000000A1C000-memory.dmp
    Filesize

    304KB

  • memory/3428-5-0x00000000023B2000-0x00000000023B3000-memory.dmp
    Filesize

    4KB