Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 01:02

General

  • Target

    044ce9e194f5194b8d0e12e8e05fc3a3ff3782e60d5b3838351e80ac43663e4d.exe

  • Size

    668KB

  • MD5

    cf021b7974c2665564085795f85a0ede

  • SHA1

    d2084747f540500ab61974ac288ab05f9d91334a

  • SHA256

    044ce9e194f5194b8d0e12e8e05fc3a3ff3782e60d5b3838351e80ac43663e4d

  • SHA512

    cf5d6acecf132c3a01ec82b3f4e8e2c66c854611b6d71b53d2b148fa492c47f800eb443a9e46828fb3cc3b408da571ee86ecc31facb67f8d7bfbd9560b7780aa

  • SSDEEP

    12288:iGCCi8LkpEatgdWrtzQswH4X1nqcSg+jEKAEGaCtXm3dCcQBoTY2ZkR:i9ZjE0GqNA4X1ijEKAER023d2BWE

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.

  • 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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\044ce9e194f5194b8d0e12e8e05fc3a3ff3782e60d5b3838351e80ac43663e4d.exe
    "C:\Users\Admin\AppData\Local\Temp\044ce9e194f5194b8d0e12e8e05fc3a3ff3782e60d5b3838351e80ac43663e4d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1876
    • 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\044ce9e194f5194b8d0e12e8e05fc3a3ff3782e60d5b3838351e80ac43663e4d.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2740
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HKBGOfx.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2304
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HKBGOfx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7021.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2100
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2536

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7021.tmp
    Filesize

    1KB

    MD5

    a02ba8e79d4afb32ae74663884c61138

    SHA1

    f6ba622143dc0a0ea3a6fd810fa166a8359bdb58

    SHA256

    64be5a9f15eb11aef640c304a0f438ed8161016c3ca9268adf514a05f9a7f237

    SHA512

    66e9a603974dad3562c520bb7b181a2448e8603b0c157bfabffd184fec6bace838adb824d932e01055ab54d838c19b67b5d454b61b4b4a240727fddfe8e2509c

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
    Filesize

    7KB

    MD5

    096f24e4fc9585f450c053b0990e9d46

    SHA1

    e3852153d4579eabf0d83c719898801349c12db5

    SHA256

    4012e26b69f969826bcd48c93b920715f25023db8a9110c345bd23b118ab4d18

    SHA512

    6e6ca0ccf88fc9939aa1480d4daef4576ca9680587efb81c4571492d603fe1120ec16a5bb4c77b8a690e286d4f8f2e54871daf05c86beccf54f2227c62607cdd

  • memory/1876-31-0x00000000746E0000-0x0000000074DCE000-memory.dmp
    Filesize

    6.9MB

  • memory/1876-1-0x0000000001210000-0x00000000012BA000-memory.dmp
    Filesize

    680KB

  • memory/1876-2-0x00000000746E0000-0x0000000074DCE000-memory.dmp
    Filesize

    6.9MB

  • memory/1876-3-0x0000000000450000-0x000000000046A000-memory.dmp
    Filesize

    104KB

  • memory/1876-4-0x0000000000230000-0x0000000000240000-memory.dmp
    Filesize

    64KB

  • memory/1876-5-0x0000000005290000-0x0000000005314000-memory.dmp
    Filesize

    528KB

  • memory/1876-0-0x00000000746EE000-0x00000000746EF000-memory.dmp
    Filesize

    4KB

  • memory/2536-18-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2536-27-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2536-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2536-24-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2536-22-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2536-20-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2536-30-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2536-28-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB