Analysis

  • max time kernel
    62s
  • max time network
    29s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    14-07-2020 13:18

General

  • Target

    Payment Advice.exe

  • Size

    739KB

  • MD5

    08e759dbea723644aa0a83897773a90b

  • SHA1

    4c65541a819cd7a39b4a4a4162b1d205cda82611

  • SHA256

    930d653a60d5eea45cb332a3b313d8bf129c1b6a0dfa82aaedadfb9dd0dc8ced

  • SHA512

    0a8e73db9d8330b074705fd9b5e1c8d4a7f4fcebd591abff509145c5d3e12193159b5ecf6a64f423f2d504785dbce37a76150e43fd8b6ccb96dd43d2bad95296

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Blessing123

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • UPX packed file 3 IoCs

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

  • 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 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1088
    • C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1144

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1144-0-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/1144-1-0x00000000004A2760-mapping.dmp

  • memory/1144-2-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/1144-3-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/1144-4-0x0000000000380000-0x00000000003CC000-memory.dmp

    Filesize

    304KB

  • memory/1144-5-0x0000000001F02000-0x0000000001F03000-memory.dmp

    Filesize

    4KB

  • memory/1144-6-0x0000000000220000-0x0000000000266000-memory.dmp

    Filesize

    280KB