Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2023 10:16

General

  • Target

    NEAS.5b7f7cf397dd97e866977561a5b04a8876987f85e7291ac5bc24403f6c442e6f.exe

  • Size

    631KB

  • MD5

    1c8b19d096c0a4f6f5e9ba4170756a15

  • SHA1

    b81f2c82bfa9730e95f761450eb257aa63e29125

  • SHA256

    5b7f7cf397dd97e866977561a5b04a8876987f85e7291ac5bc24403f6c442e6f

  • SHA512

    1be8c8b8fb81130c497ccb06bfb22b3ef49becf8981b197453617567f8f9c3e472af80f7ddceadae85d86768477ab20653a344c6b02c527f3c81875bfb63e38b

  • SSDEEP

    12288:00oddzLZT4giIVJ6z2r3Q4Rgv8xbVRPwSiqR7ONRPCb9eeW:Szh4gi4/3QQjoSi7PCAeW

Malware Config

Extracted

Family

agenttesla

Credentials

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.5b7f7cf397dd97e866977561a5b04a8876987f85e7291ac5bc24403f6c442e6f.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.5b7f7cf397dd97e866977561a5b04a8876987f85e7291ac5bc24403f6c442e6f.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:952
    • C:\Users\Admin\AppData\Local\Temp\NEAS.5b7f7cf397dd97e866977561a5b04a8876987f85e7291ac5bc24403f6c442e6f.exe
      C:\Users\Admin\AppData\Local\Temp\NEAS.5b7f7cf397dd97e866977561a5b04a8876987f85e7291ac5bc24403f6c442e6f.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/952-0-0x0000000000B60000-0x0000000000C00000-memory.dmp

    Filesize

    640KB

  • memory/952-1-0x0000000074810000-0x0000000074EFE000-memory.dmp

    Filesize

    6.9MB

  • memory/952-2-0x00000000020E0000-0x000000000213A000-memory.dmp

    Filesize

    360KB

  • memory/952-3-0x0000000002150000-0x0000000002190000-memory.dmp

    Filesize

    256KB

  • memory/952-4-0x00000000005B0000-0x00000000005F2000-memory.dmp

    Filesize

    264KB

  • memory/952-5-0x0000000000B10000-0x0000000000B50000-memory.dmp

    Filesize

    256KB

  • memory/952-6-0x0000000002190000-0x00000000021DC000-memory.dmp

    Filesize

    304KB

  • memory/952-18-0x0000000074810000-0x0000000074EFE000-memory.dmp

    Filesize

    6.9MB

  • memory/2996-10-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2996-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2996-13-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2996-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2996-16-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2996-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2996-8-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2996-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2996-22-0x0000000074790000-0x0000000074E7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2996-23-0x0000000000350000-0x0000000000390000-memory.dmp

    Filesize

    256KB

  • memory/2996-24-0x0000000074790000-0x0000000074E7E000-memory.dmp

    Filesize

    6.9MB