Analysis

  • max time kernel
    147s
  • max time network
    185s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 10:53

General

  • Target

    Payment Proof.exe

  • Size

    806KB

  • MD5

    6c8f01372803ed1b13e8e03bc764b84f

  • SHA1

    2851549bed6bab05ddd74c2ae97e7324b2df8e31

  • SHA256

    c482ca787afb6b9f12e79b80f791494338b6a353950c12e57df5b1411a1ccd50

  • SHA512

    fae08dac1a2f78177fd274954e00f57b6e16b869a8ed8fe1d8d61c7fd01c875dff44df69493dffb59c9f6ab25ac39b7a2ce12ddea7602444c149a7c475c6a487

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chukwudi123

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 SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Proof.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Proof.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1364
    • C:\Users\Admin\AppData\Local\Temp\Payment Proof.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Proof.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2332

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

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Downloads

  • memory/1364-131-0x0000000003F30000-0x0000000003F3F000-memory.dmp
    Filesize

    60KB

  • memory/2332-132-0x0000000000000000-mapping.dmp
  • memory/2332-134-0x0000000000A50000-0x0000000000A9E000-memory.dmp
    Filesize

    312KB

  • memory/2332-133-0x0000000000A50000-0x0000000000A9E000-memory.dmp
    Filesize

    312KB

  • memory/2332-135-0x00000000750A0000-0x0000000075651000-memory.dmp
    Filesize

    5.7MB