Analysis

  • max time kernel
    49s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    01-03-2023 14:59

General

  • Target

    SEAWAY BILL.exe

  • Size

    1.1MB

  • MD5

    fd5a7296c27d4c010932880f1076eff3

  • SHA1

    57fb293894a7a6a0dca55e8e0c7d70c0e0c4ead3

  • SHA256

    5a67a6ba0bdce0f79f4086b0648b6a6b7484561fae29ba6f7b48bcae641f2f59

  • SHA512

    fb7333ae64228c4bb195048a81855fc8711bc5f1ba77fb08c2731877353b565531ad6bef919058e400a7c102fc27a009b77bd4e8f21ad06a5d78de278fc60799

  • SSDEEP

    24576:1Sd4TsIBMNjnNNOhAe/S0FVL8mcwE47iK+hTrPi7wHTaybeAqVf2lQaUd9uvkiwV:XJcA78PFHuyIV++aOuv83l

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5818759233:AAFI7OlL_xF1C_H7nxAtSweMNNwegCdZOXs/

Signatures

  • 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.

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SEAWAY BILL.exe
    "C:\Users\Admin\AppData\Local\Temp\SEAWAY BILL.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1948
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZjEofiH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8A65.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:972
    • C:\Users\Admin\AppData\Local\Temp\SEAWAY BILL.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:648

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8A65.tmp

    Filesize

    1KB

    MD5

    5bfa386e9755637ceb0ecb862fc04a03

    SHA1

    3bca4972142ff83070110a39408c9aebc7aae3bc

    SHA256

    908eede96d07ed35043cc842991a9af081fe7e5d696204f6ae0b50efb4ba326d

    SHA512

    9e8e8f09dfbe0a6337901894a07df58df1d845a24f46f51f5a52a1df71d8a34a3f651198bca39624899da504fc070a8b90a1d0b31696317aaf24ea951288506e

  • memory/648-68-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/648-63-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/648-75-0x0000000004D70000-0x0000000004DB0000-memory.dmp

    Filesize

    256KB

  • memory/648-73-0x0000000004D70000-0x0000000004DB0000-memory.dmp

    Filesize

    256KB

  • memory/648-65-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/648-72-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/648-70-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/648-64-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/648-67-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/648-66-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1948-59-0x000000000A830000-0x000000000A8AE000-memory.dmp

    Filesize

    504KB

  • memory/1948-54-0x00000000011F0000-0x000000000131A000-memory.dmp

    Filesize

    1.2MB

  • memory/1948-56-0x00000000004A0000-0x00000000004AE000-memory.dmp

    Filesize

    56KB

  • memory/1948-55-0x0000000004FF0000-0x0000000005030000-memory.dmp

    Filesize

    256KB

  • memory/1948-58-0x00000000081A0000-0x0000000008266000-memory.dmp

    Filesize

    792KB

  • memory/1948-57-0x0000000004FF0000-0x0000000005030000-memory.dmp

    Filesize

    256KB