Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2023 02:36

General

  • Target

    bb6455721221afb980661df55c7aa8ae40d04986bb48bb32638c656654955d91.exe

  • Size

    696KB

  • MD5

    942159927d5bc0cb1b02e398584cf1a9

  • SHA1

    ef7a0a018ce8389b5a5e7c5af7a787a5695e3ebe

  • SHA256

    bb6455721221afb980661df55c7aa8ae40d04986bb48bb32638c656654955d91

  • SHA512

    fb4ac3c81e7e1485de6fc48909bfb3dbf54d54067ba95ca6d540cd70a550d2e5e23f5b868afd217e906adaa64eff3994576248bacd1859bd7950cdb0919f2842

  • SSDEEP

    12288:KueH5qZFQVFuC0aWx+LOoDDygLt3YI0Yn5YP7Z+P8nU2fLwHN+JoNcJjgntXyzrL:uqZFQt0n2OozVfH5X8nU2fkHN+u2i5yr

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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bb6455721221afb980661df55c7aa8ae40d04986bb48bb32638c656654955d91.exe
    "C:\Users\Admin\AppData\Local\Temp\bb6455721221afb980661df55c7aa8ae40d04986bb48bb32638c656654955d91.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2924
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\bb6455721221afb980661df55c7aa8ae40d04986bb48bb32638c656654955d91.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1728
    • C:\Users\Admin\AppData\Local\Temp\bb6455721221afb980661df55c7aa8ae40d04986bb48bb32638c656654955d91.exe
      "C:\Users\Admin\AppData\Local\Temp\bb6455721221afb980661df55c7aa8ae40d04986bb48bb32638c656654955d91.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1728-27-0x000000006F6C0000-0x000000006FC6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1728-31-0x000000006F6C0000-0x000000006FC6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1728-30-0x0000000002D00000-0x0000000002D40000-memory.dmp

    Filesize

    256KB

  • memory/1728-29-0x0000000002D00000-0x0000000002D40000-memory.dmp

    Filesize

    256KB

  • memory/1728-28-0x000000006F6C0000-0x000000006FC6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2568-17-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2568-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2568-7-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2568-9-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2568-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2568-13-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2568-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2568-33-0x0000000074550000-0x0000000074C3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2568-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2568-25-0x00000000049E0000-0x0000000004A20000-memory.dmp

    Filesize

    256KB

  • memory/2568-24-0x0000000074550000-0x0000000074C3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2924-6-0x0000000004DB0000-0x0000000004E2C000-memory.dmp

    Filesize

    496KB

  • memory/2924-26-0x0000000074550000-0x0000000074C3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2924-5-0x0000000000510000-0x000000000051A000-memory.dmp

    Filesize

    40KB

  • memory/2924-4-0x00000000004D0000-0x00000000004D8000-memory.dmp

    Filesize

    32KB

  • memory/2924-3-0x00000000004F0000-0x000000000050A000-memory.dmp

    Filesize

    104KB

  • memory/2924-2-0x0000000004D70000-0x0000000004DB0000-memory.dmp

    Filesize

    256KB

  • memory/2924-0-0x0000000000C00000-0x0000000000CB4000-memory.dmp

    Filesize

    720KB

  • memory/2924-1-0x0000000074550000-0x0000000074C3E000-memory.dmp

    Filesize

    6.9MB