Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    04-06-2024 01:00

General

  • Target

    031c712370f6c655fdd1e11f2eecae2065106e3f6588415dd9dfb42914e557ec.exe

  • Size

    698KB

  • MD5

    a5600816a7e60f1ac466eb56bbfbbbd4

  • SHA1

    05735b0f2503a5f55cd3799306d80540558c86bf

  • SHA256

    031c712370f6c655fdd1e11f2eecae2065106e3f6588415dd9dfb42914e557ec

  • SHA512

    78a02f32113b1a29ad802501613db14920032ccca5ee5c2b29ab6963e624fb9cfa1ca95ba0196a327024e7e7f33bdeea9affcba701e31832d421e6aacfeed2ce

  • SSDEEP

    12288:7MEKt/rFfalC4RfSHvsgZwTu1ibmUSEBUbrB4zXrw0Nii2g6ZjFdNw+vRiRyrXPe:tKN5iljRfWF/UsrmzzQFLw+QkJlWJ

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 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 2 IoCs

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

  • 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).

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\031c712370f6c655fdd1e11f2eecae2065106e3f6588415dd9dfb42914e557ec.exe
    "C:\Users\Admin\AppData\Local\Temp\031c712370f6c655fdd1e11f2eecae2065106e3f6588415dd9dfb42914e557ec.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2428
    • 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\031c712370f6c655fdd1e11f2eecae2065106e3f6588415dd9dfb42914e557ec.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3012
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QFoWfnEj.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2636
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QFoWfnEj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp41A2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2728
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2544

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp41A2.tmp

    Filesize

    1KB

    MD5

    88d3fb86dc0fd18ca25099be177aeb5f

    SHA1

    9781664a818d6aca47efc72fefe65b24d02568af

    SHA256

    ff34ca44a3aad4812b8cf00aaa0c5b7533c42519411ff1d526f2774133aec30b

    SHA512

    522f3b2b082ebf81657014694c4a1738d4053fd4633a46f31736ef3ccefa7d1272ef310e824edfa2bfe61e38accadbcd4ebb2625a3397e03d75a6bd572bacaf0

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\MI7U2NWOQQQJLNPQHEBI.temp

    Filesize

    7KB

    MD5

    adbe0e936ada07a33e9357c612f43f86

    SHA1

    99f8fab0b55359547299b7b9ac5de4d53771e190

    SHA256

    2be4da4008375edf633119a9793ab185a788c3f22a06f6bbc44b24c341adbd74

    SHA512

    9523e22d7f7af99a8d71e5cb239b717a03de99ef9aa71bb1817e17d7355ddbe061f8e453af730a4257ca2d646e2fe7f059412f9b3f897b5a374f4919c2ee935b

  • memory/2428-4-0x0000000001E60000-0x0000000001E6E000-memory.dmp

    Filesize

    56KB

  • memory/2428-32-0x0000000074500000-0x0000000074BEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2428-0-0x000000007450E000-0x000000007450F000-memory.dmp

    Filesize

    4KB

  • memory/2428-5-0x0000000001E70000-0x0000000001E80000-memory.dmp

    Filesize

    64KB

  • memory/2428-6-0x0000000005E00000-0x0000000005E82000-memory.dmp

    Filesize

    520KB

  • memory/2428-2-0x0000000074500000-0x0000000074BEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2428-1-0x0000000000970000-0x0000000000A24000-memory.dmp

    Filesize

    720KB

  • memory/2428-3-0x0000000000920000-0x0000000000936000-memory.dmp

    Filesize

    88KB

  • memory/2544-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2544-31-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2544-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2544-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2544-25-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2544-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2544-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2544-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB