Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    12-06-2024 02:30

General

  • Target

    ecb9115de92beb10b3344687dfe5a2147117302e02378f5592649d5761e33305.exe

  • Size

    891KB

  • MD5

    c21a03ba2040ef6de6b522ce779a8399

  • SHA1

    59a91fd925902d7d21829a5a4d57765f69db1369

  • SHA256

    ecb9115de92beb10b3344687dfe5a2147117302e02378f5592649d5761e33305

  • SHA512

    fa92469d362d41e16a19ce615a341c4b8fd07805f5175074cbffc182733537f51f71e972029037bdf782dfdfcb47be33b7d35ca350e777fe3d9c0b1dc9905327

  • SSDEEP

    24576:thFgZKs71DI5AGSHHZsxeosZWve9hDYwwppqO:zFgZKMXGSZsxeosZ6YN/O

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 5 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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.

  • Looks up external IP address via web service 3 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).

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ecb9115de92beb10b3344687dfe5a2147117302e02378f5592649d5761e33305.exe
    "C:\Users\Admin\AppData\Local\Temp\ecb9115de92beb10b3344687dfe5a2147117302e02378f5592649d5761e33305.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\IfNaEnvFOSaGpt.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2632
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IfNaEnvFOSaGpt" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3D4E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2576
    • C:\Users\Admin\AppData\Local\Temp\ecb9115de92beb10b3344687dfe5a2147117302e02378f5592649d5761e33305.exe
      "C:\Users\Admin\AppData\Local\Temp\ecb9115de92beb10b3344687dfe5a2147117302e02378f5592649d5761e33305.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp3D4E.tmp

    Filesize

    1KB

    MD5

    23ce404c60b8ea68d3b0e7aed0607ab3

    SHA1

    b5a15ee12f0b85e040a6d82b499cfd021f3f2646

    SHA256

    0a31a40a058cb975e63e695659899dd07179db8d45b1052d6370ebdfe64c4d4b

    SHA512

    51126b047cf67298eb2b05734458b029d6d299ea1c959581b3a88d4ebfdc2e2f3ce2d007e81380c1952bca7726cc4869db15d62d0c61decb8be150ac4f78b776

  • memory/2348-0-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

    Filesize

    4KB

  • memory/2348-1-0x00000000010F0000-0x00000000011D6000-memory.dmp

    Filesize

    920KB

  • memory/2348-2-0x0000000074A70000-0x000000007515E000-memory.dmp

    Filesize

    6.9MB

  • memory/2348-3-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/2348-4-0x0000000000420000-0x0000000000430000-memory.dmp

    Filesize

    64KB

  • memory/2348-5-0x0000000005D90000-0x0000000005E14000-memory.dmp

    Filesize

    528KB

  • memory/2348-25-0x0000000074A70000-0x000000007515E000-memory.dmp

    Filesize

    6.9MB

  • memory/2584-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2584-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2584-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2584-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2584-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2584-17-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2584-15-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2584-13-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB