Analysis

  • max time kernel
    134s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 02:28

General

  • Target

    cdc1d4a0a6ee88e02e56cd34b06c49adb88a650924d0f3be4e3bc8f47aaef86d.exe

  • Size

    659KB

  • MD5

    55e015f998bcf91ac5984298d41de7ba

  • SHA1

    bcab84326176900d85ce740486c9498a8d23ebd5

  • SHA256

    cdc1d4a0a6ee88e02e56cd34b06c49adb88a650924d0f3be4e3bc8f47aaef86d

  • SHA512

    6b490994dd0ac4038da850c0af9019f3d683c2df7bcc5d76292ee01f8c70098df15d8e74127610eae64d471de55edbd67f39dcc064d2f42ccb25857e169ba172

  • SSDEEP

    12288:BQgzi8LkpEa4qAvIZX5cNIixfPdORFIK0x7+2qYxUunx6TPZaty3k3SKlonmfSL2:BQg2jEFqhZX5O3xHdWD+q2j7Es43ek3y

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7171896485:AAHBPgJTIceKNYXu1ygNkvPPqrgHeOG7q7k/

Signatures

  • AgentTesla

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

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • Looks up external IP address via web service 1 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cdc1d4a0a6ee88e02e56cd34b06c49adb88a650924d0f3be4e3bc8f47aaef86d.exe
    "C:\Users\Admin\AppData\Local\Temp\cdc1d4a0a6ee88e02e56cd34b06c49adb88a650924d0f3be4e3bc8f47aaef86d.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3152
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NyKHuE.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1280
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NyKHuE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCE2D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:740
    • C:\Users\Admin\AppData\Local\Temp\cdc1d4a0a6ee88e02e56cd34b06c49adb88a650924d0f3be4e3bc8f47aaef86d.exe
      "C:\Users\Admin\AppData\Local\Temp\cdc1d4a0a6ee88e02e56cd34b06c49adb88a650924d0f3be4e3bc8f47aaef86d.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pypr5dlr.1v2.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpCE2D.tmp
    Filesize

    1KB

    MD5

    9bfa79169a09b53b573538d7cb777b60

    SHA1

    d0b3d696523e2fcc6b980713054efcd906226080

    SHA256

    f952e5a0c300606974617830f8bf8bdf0160e9b3f9c86cd249eb4d1c3da1745d

    SHA512

    0131e081da272a0956cf99676bd690b33950741cb43642eea9275b1fdeaf1b2b995b65e55cf127b6359a1dc033ca35c655d33ac897ebfa01d7687dfd2d11e666

  • memory/1280-43-0x0000000070EB0000-0x0000000070EFC000-memory.dmp
    Filesize

    304KB

  • memory/1280-62-0x00000000071B0000-0x00000000071C4000-memory.dmp
    Filesize

    80KB

  • memory/1280-61-0x00000000071A0000-0x00000000071AE000-memory.dmp
    Filesize

    56KB

  • memory/1280-26-0x0000000005610000-0x0000000005964000-memory.dmp
    Filesize

    3.3MB

  • memory/1280-59-0x00000000071F0000-0x0000000007286000-memory.dmp
    Filesize

    600KB

  • memory/1280-58-0x0000000006FE0000-0x0000000006FEA000-memory.dmp
    Filesize

    40KB

  • memory/1280-57-0x0000000006F70000-0x0000000006F8A000-memory.dmp
    Filesize

    104KB

  • memory/1280-56-0x00000000075C0000-0x0000000007C3A000-memory.dmp
    Filesize

    6.5MB

  • memory/1280-67-0x0000000074E20000-0x00000000755D0000-memory.dmp
    Filesize

    7.7MB

  • memory/1280-15-0x0000000002320000-0x0000000002356000-memory.dmp
    Filesize

    216KB

  • memory/1280-63-0x00000000072B0000-0x00000000072CA000-memory.dmp
    Filesize

    104KB

  • memory/1280-18-0x0000000004FA0000-0x00000000055C8000-memory.dmp
    Filesize

    6.2MB

  • memory/1280-54-0x0000000006C90000-0x0000000006D33000-memory.dmp
    Filesize

    652KB

  • memory/1280-19-0x0000000074E20000-0x00000000755D0000-memory.dmp
    Filesize

    7.7MB

  • memory/1280-21-0x0000000004D70000-0x0000000004D92000-memory.dmp
    Filesize

    136KB

  • memory/1280-23-0x0000000004E80000-0x0000000004EE6000-memory.dmp
    Filesize

    408KB

  • memory/1280-53-0x00000000061E0000-0x00000000061FE000-memory.dmp
    Filesize

    120KB

  • memory/1280-27-0x0000000074E20000-0x00000000755D0000-memory.dmp
    Filesize

    7.7MB

  • memory/1280-42-0x0000000006220000-0x0000000006252000-memory.dmp
    Filesize

    200KB

  • memory/1280-60-0x0000000007170000-0x0000000007181000-memory.dmp
    Filesize

    68KB

  • memory/1280-40-0x0000000005C40000-0x0000000005C5E000-memory.dmp
    Filesize

    120KB

  • memory/1280-25-0x0000000074E20000-0x00000000755D0000-memory.dmp
    Filesize

    7.7MB

  • memory/1280-22-0x0000000004E10000-0x0000000004E76000-memory.dmp
    Filesize

    408KB

  • memory/1280-64-0x0000000007290000-0x0000000007298000-memory.dmp
    Filesize

    32KB

  • memory/1280-41-0x0000000005C70000-0x0000000005CBC000-memory.dmp
    Filesize

    304KB

  • memory/3152-2-0x0000000005360000-0x0000000005904000-memory.dmp
    Filesize

    5.6MB

  • memory/3152-1-0x0000000000350000-0x00000000003FA000-memory.dmp
    Filesize

    680KB

  • memory/3152-13-0x0000000074E2E000-0x0000000074E2F000-memory.dmp
    Filesize

    4KB

  • memory/3152-3-0x0000000004E50000-0x0000000004EE2000-memory.dmp
    Filesize

    584KB

  • memory/3152-28-0x0000000074E20000-0x00000000755D0000-memory.dmp
    Filesize

    7.7MB

  • memory/3152-0-0x0000000074E2E000-0x0000000074E2F000-memory.dmp
    Filesize

    4KB

  • memory/3152-17-0x0000000074E20000-0x00000000755D0000-memory.dmp
    Filesize

    7.7MB

  • memory/3152-7-0x0000000005330000-0x0000000005340000-memory.dmp
    Filesize

    64KB

  • memory/3152-8-0x0000000006480000-0x0000000006504000-memory.dmp
    Filesize

    528KB

  • memory/3152-9-0x0000000008AC0000-0x0000000008B5C000-memory.dmp
    Filesize

    624KB

  • memory/3152-6-0x0000000005200000-0x000000000521A000-memory.dmp
    Filesize

    104KB

  • memory/3152-5-0x0000000004E00000-0x0000000004E0A000-memory.dmp
    Filesize

    40KB

  • memory/3152-4-0x0000000074E20000-0x00000000755D0000-memory.dmp
    Filesize

    7.7MB

  • memory/4480-30-0x0000000074E20000-0x00000000755D0000-memory.dmp
    Filesize

    7.7MB

  • memory/4480-55-0x00000000064A0000-0x00000000064F0000-memory.dmp
    Filesize

    320KB

  • memory/4480-20-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/4480-29-0x0000000074E20000-0x00000000755D0000-memory.dmp
    Filesize

    7.7MB

  • memory/4480-68-0x0000000074E20000-0x00000000755D0000-memory.dmp
    Filesize

    7.7MB