Analysis

  • max time kernel
    139s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    19-10-2021 07:33

General

  • Target

    Bank slip.exe

  • Size

    694KB

  • MD5

    cb84e6082cec4afda05807eb8c5d62e9

  • SHA1

    ca66b1a86f68e660c428aa46ca6d00c226e72503

  • SHA256

    a965a0da37d19d72e2a468560846917d1e69d396f6622c77103a1c25b26c1100

  • SHA512

    2a21d2b4d4a8652806a3d90b183a9a7d41740904314543e74a50765be80fc67ff2804349a454c99b347d0552cf1556195c9bb42ec47baade3e41741eaff922c4

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    !xgapua3

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 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 WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bank slip.exe
    "C:\Users\Admin\AppData\Local\Temp\Bank slip.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\Bank slip.exe
      "C:\Users\Admin\AppData\Local\Temp\Bank slip.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:324

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/324-63-0x00000000004375EE-mapping.dmp

  • memory/324-58-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/324-59-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/324-60-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/324-61-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/324-62-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/324-64-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/324-66-0x0000000004A80000-0x0000000004A81000-memory.dmp

    Filesize

    4KB

  • memory/324-67-0x0000000004A81000-0x0000000004A82000-memory.dmp

    Filesize

    4KB

  • memory/2024-55-0x0000000000720000-0x0000000000721000-memory.dmp

    Filesize

    4KB

  • memory/2024-56-0x0000000000410000-0x0000000000418000-memory.dmp

    Filesize

    32KB

  • memory/2024-57-0x0000000004990000-0x00000000049E8000-memory.dmp

    Filesize

    352KB

  • memory/2024-53-0x0000000000D70000-0x0000000000D71000-memory.dmp

    Filesize

    4KB