Analysis

  • max time kernel
    46s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 12:43

General

  • Target

    Payment Swift copy.pdf.exe

  • Size

    601KB

  • MD5

    7c570d1b94f61fb0fa59ee3dd48a9cf6

  • SHA1

    0919f4dcd62b2cdd92eab04a5fb734dd373e2711

  • SHA256

    f595019c294b2717aad61673e0214db90da5f880d5177c81b30f053004450a56

  • SHA512

    fc7eadbdd6a8e495385d46dde1c0519eacb83cdf816c368d5379c68e01f96f766e4e183df83b95a0d8899a5434614789a2832eb35c2e19efc6a33a72a082c434

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    chinapeace@yandex.com
  • Password:
    chibuikelightwork1

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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 use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Swift copy.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Swift copy.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:800
    • C:\Users\Admin\AppData\Local\Temp\Payment Swift copy.pdf.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2028

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/800-54-0x00000000765F1000-0x00000000765F3000-memory.dmp
    Filesize

    8KB

  • memory/800-55-0x0000000074FE0000-0x000000007558B000-memory.dmp
    Filesize

    5.7MB

  • memory/2028-56-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/2028-57-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/2028-59-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/2028-60-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/2028-61-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/2028-62-0x000000000046133E-mapping.dmp
  • memory/2028-64-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/2028-66-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/2028-68-0x0000000074FE0000-0x000000007558B000-memory.dmp
    Filesize

    5.7MB