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Analysis

  • max time kernel
    92s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/10/2024, 21:31

General

  • Target

    2a7c0a2ba123eba273f8e752ee51976ac67e0a5c0b83940b8a6fa76013576f56N.exe

  • Size

    878KB

  • MD5

    84f2adfbd63e0c82a3d6c190d3216ca0

  • SHA1

    d2439a2de189f9d3c55cbdc0b801fd07a9aecc53

  • SHA256

    2a7c0a2ba123eba273f8e752ee51976ac67e0a5c0b83940b8a6fa76013576f56

  • SHA512

    11253940dd2e041640dae089c5ff79197d95d8839c87637988a0175dff694dd63a52a36d6be5da066931b073bcd70ec6d526ca8ec34b65e82fc020752c635a1c

  • SSDEEP

    12288:HAfs4r/h/s3YdHCdPxMX6kyA8crF/+4h5/Qfac7N5dkR:V4r/lHI53kHx/+41qac7NW

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6852245174:AAHgk_9s-tH6YNacTaCnQz56uJMggI0fZDw/

Signatures

  • AgentTesla

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

  • 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.

  • 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 3 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).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a7c0a2ba123eba273f8e752ee51976ac67e0a5c0b83940b8a6fa76013576f56N.exe
    "C:\Users\Admin\AppData\Local\Temp\2a7c0a2ba123eba273f8e752ee51976ac67e0a5c0b83940b8a6fa76013576f56N.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4388
    • 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\2a7c0a2ba123eba273f8e752ee51976ac67e0a5c0b83940b8a6fa76013576f56N.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4300
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cRvngpcx.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1328
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cRvngpcx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF879.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4652
    • C:\Users\Admin\AppData\Local\Temp\2a7c0a2ba123eba273f8e752ee51976ac67e0a5c0b83940b8a6fa76013576f56N.exe
      "C:\Users\Admin\AppData\Local\Temp\2a7c0a2ba123eba273f8e752ee51976ac67e0a5c0b83940b8a6fa76013576f56N.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1320

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    bdc763e43190a2bea8c30cb9b30d4f36

    SHA1

    f05d321ba54641f98ebe8aebea6c12656f9a6864

    SHA256

    e3c129bb0501cddcda95c65d51a4e97e9a9f3862a7a297ecd11731e64c17144a

    SHA512

    31366530600feb3fd4a78d16d9369efb978590bebfc8653d482cc3981d5483b3a03b88dd958956f39fcfe2cf07f1b6d935b617de67ee8e48134f0b2a75608469

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cd35ypc3.mph.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpF879.tmp

    Filesize

    1KB

    MD5

    d26808ed42e1e2bb4efe9460d4f8cb12

    SHA1

    ef5847ee646e9b6b6b773f46eaeb8e904857c3a1

    SHA256

    049b61de80692f5fc361aa9276032aa7ddb822694a9905f284479fec40bea487

    SHA512

    f5c5066e6ae1767f3fb085d148d11d1db2a1032d91e8b918c6df2144b239cd722b1a9c21bca18dfd1989792dad0f446eb0e02f6c230d5374da87dcf7b35f3348

  • memory/1320-81-0x00000000068C0000-0x0000000006910000-memory.dmp

    Filesize

    320KB

  • memory/1320-27-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/1328-79-0x0000000007250000-0x000000000725E000-memory.dmp

    Filesize

    56KB

  • memory/1328-63-0x0000000006F20000-0x0000000006FC3000-memory.dmp

    Filesize

    652KB

  • memory/1328-62-0x0000000006320000-0x000000000633E000-memory.dmp

    Filesize

    120KB

  • memory/1328-51-0x00000000062E0000-0x0000000006312000-memory.dmp

    Filesize

    200KB

  • memory/1328-52-0x000000006FF90000-0x000000006FFDC000-memory.dmp

    Filesize

    304KB

  • memory/1328-50-0x0000000005DA0000-0x0000000005DEC000-memory.dmp

    Filesize

    304KB

  • memory/1328-46-0x0000000005CD0000-0x0000000005CEE000-memory.dmp

    Filesize

    120KB

  • memory/1328-21-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/1328-23-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/1328-19-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/1328-89-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4300-42-0x0000000006020000-0x0000000006374000-memory.dmp

    Filesize

    3.3MB

  • memory/4300-25-0x0000000005720000-0x0000000005786000-memory.dmp

    Filesize

    408KB

  • memory/4300-18-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4300-24-0x0000000005680000-0x00000000056A2000-memory.dmp

    Filesize

    136KB

  • memory/4300-26-0x0000000005810000-0x0000000005876000-memory.dmp

    Filesize

    408KB

  • memory/4300-16-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4300-17-0x0000000005880000-0x0000000005EA8000-memory.dmp

    Filesize

    6.2MB

  • memory/4300-90-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4300-22-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4300-76-0x00000000079D0000-0x00000000079DA000-memory.dmp

    Filesize

    40KB

  • memory/4300-15-0x0000000002D30000-0x0000000002D66000-memory.dmp

    Filesize

    216KB

  • memory/4300-83-0x0000000007C80000-0x0000000007C88000-memory.dmp

    Filesize

    32KB

  • memory/4300-82-0x0000000007CA0000-0x0000000007CBA000-memory.dmp

    Filesize

    104KB

  • memory/4300-80-0x0000000007BA0000-0x0000000007BB4000-memory.dmp

    Filesize

    80KB

  • memory/4300-78-0x0000000007B60000-0x0000000007B71000-memory.dmp

    Filesize

    68KB

  • memory/4300-64-0x000000006FF90000-0x000000006FFDC000-memory.dmp

    Filesize

    304KB

  • memory/4300-77-0x0000000007BE0000-0x0000000007C76000-memory.dmp

    Filesize

    600KB

  • memory/4300-75-0x0000000007960000-0x000000000797A000-memory.dmp

    Filesize

    104KB

  • memory/4300-74-0x0000000007FB0000-0x000000000862A000-memory.dmp

    Filesize

    6.5MB

  • memory/4388-45-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-6-0x0000000004E80000-0x0000000004E9E000-memory.dmp

    Filesize

    120KB

  • memory/4388-7-0x000000007516E000-0x000000007516F000-memory.dmp

    Filesize

    4KB

  • memory/4388-5-0x0000000004DC0000-0x0000000004DCA000-memory.dmp

    Filesize

    40KB

  • memory/4388-8-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-4-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4388-9-0x0000000004750000-0x00000000047D6000-memory.dmp

    Filesize

    536KB

  • memory/4388-10-0x000000000AC50000-0x000000000ACEC000-memory.dmp

    Filesize

    624KB

  • memory/4388-3-0x0000000004D10000-0x0000000004DA2000-memory.dmp

    Filesize

    584KB

  • memory/4388-2-0x00000000053C0000-0x0000000005964000-memory.dmp

    Filesize

    5.6MB

  • memory/4388-0-0x000000007516E000-0x000000007516F000-memory.dmp

    Filesize

    4KB

  • memory/4388-1-0x0000000000250000-0x000000000032E000-memory.dmp

    Filesize

    888KB