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Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/04/2024, 01:40

General

  • Target

    8f44b390ba295e14b6a18221d7d74acbc1ad2b4440db3380364e9b7964f43670.exe

  • Size

    756KB

  • MD5

    3b35eb02919cc28d6faea03c96519504

  • SHA1

    66588cd5d127e83379de633e178b288fe3fad794

  • SHA256

    8f44b390ba295e14b6a18221d7d74acbc1ad2b4440db3380364e9b7964f43670

  • SHA512

    91a2b15b24c30f09c1860ffb31073e4027bb2f970ae7a4a3674a3e99a49194928d6774fc5d963661dbb33a012e95dd51a88a9be64d6b6f07380339388015b6a0

  • SSDEEP

    12288:hCK/pbMrRwwAFua+bT/gUDSXN057FQdMvMOKI4uko5QLaBKJAWnGtMm8WxTlEA3J:hCiMrgeX5S+5xeMp4xoQaWAWGtMm8WxP

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.torosdental.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    mehmet19201923000

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • 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 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f44b390ba295e14b6a18221d7d74acbc1ad2b4440db3380364e9b7964f43670.exe
    "C:\Users\Admin\AppData\Local\Temp\8f44b390ba295e14b6a18221d7d74acbc1ad2b4440db3380364e9b7964f43670.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4592
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xOqrCwLHNYO.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4620
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xOqrCwLHNYO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9599.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:5072
    • C:\Users\Admin\AppData\Local\Temp\8f44b390ba295e14b6a18221d7d74acbc1ad2b4440db3380364e9b7964f43670.exe
      "C:\Users\Admin\AppData\Local\Temp\8f44b390ba295e14b6a18221d7d74acbc1ad2b4440db3380364e9b7964f43670.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3140

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\8f44b390ba295e14b6a18221d7d74acbc1ad2b4440db3380364e9b7964f43670.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gnczuk33.oar.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp9599.tmp

    Filesize

    1KB

    MD5

    9013b9d1cfc8068124757c7f609ba2b5

    SHA1

    2b470072d992fa1d622bac8c79993b0f875b6726

    SHA256

    1117d563f3b702d0f668cfaa9c272de6c8903c689052f03d065c127add7c5e4d

    SHA512

    88ac3901cf6e256dba90cf3b7f7818d109d5db18831c2353f5b663824d4a9aaab570b794fce8e39f833975a9f8c15b017c34ccbaac613838fcc5adadc54f1c70

  • memory/3140-70-0x0000000005940000-0x0000000005950000-memory.dmp

    Filesize

    64KB

  • memory/3140-21-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/3140-34-0x0000000005940000-0x0000000005950000-memory.dmp

    Filesize

    64KB

  • memory/3140-27-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/3140-61-0x00000000070E0000-0x0000000007130000-memory.dmp

    Filesize

    320KB

  • memory/3140-69-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/4592-5-0x0000000004D60000-0x0000000004D6A000-memory.dmp

    Filesize

    40KB

  • memory/4592-10-0x0000000008840000-0x00000000088C6000-memory.dmp

    Filesize

    536KB

  • memory/4592-9-0x00000000050D0000-0x00000000050E4000-memory.dmp

    Filesize

    80KB

  • memory/4592-8-0x00000000050C0000-0x00000000050CE000-memory.dmp

    Filesize

    56KB

  • memory/4592-7-0x0000000004E50000-0x0000000004E68000-memory.dmp

    Filesize

    96KB

  • memory/4592-6-0x0000000004E70000-0x0000000004F0C000-memory.dmp

    Filesize

    624KB

  • memory/4592-4-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

    Filesize

    64KB

  • memory/4592-3-0x0000000004BD0000-0x0000000004C62000-memory.dmp

    Filesize

    584KB

  • memory/4592-2-0x00000000050E0000-0x0000000005684000-memory.dmp

    Filesize

    5.6MB

  • memory/4592-1-0x0000000000120000-0x00000000001E0000-memory.dmp

    Filesize

    768KB

  • memory/4592-0-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/4592-26-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/4620-25-0x0000000004EA0000-0x0000000004F06000-memory.dmp

    Filesize

    408KB

  • memory/4620-56-0x0000000007720000-0x0000000007D9A000-memory.dmp

    Filesize

    6.5MB

  • memory/4620-18-0x0000000004F90000-0x00000000055B8000-memory.dmp

    Filesize

    6.2MB

  • memory/4620-28-0x0000000004F10000-0x0000000004F76000-memory.dmp

    Filesize

    408KB

  • memory/4620-20-0x00000000025D0000-0x00000000025E0000-memory.dmp

    Filesize

    64KB

  • memory/4620-39-0x0000000005780000-0x0000000005AD4000-memory.dmp

    Filesize

    3.3MB

  • memory/4620-40-0x0000000005DD0000-0x0000000005DEE000-memory.dmp

    Filesize

    120KB

  • memory/4620-41-0x0000000005E10000-0x0000000005E5C000-memory.dmp

    Filesize

    304KB

  • memory/4620-42-0x00000000025D0000-0x00000000025E0000-memory.dmp

    Filesize

    64KB

  • memory/4620-43-0x0000000006D90000-0x0000000006DC2000-memory.dmp

    Filesize

    200KB

  • memory/4620-44-0x0000000070AB0000-0x0000000070AFC000-memory.dmp

    Filesize

    304KB

  • memory/4620-54-0x0000000006390000-0x00000000063AE000-memory.dmp

    Filesize

    120KB

  • memory/4620-55-0x0000000006FD0000-0x0000000007073000-memory.dmp

    Filesize

    652KB

  • memory/4620-24-0x0000000004E00000-0x0000000004E22000-memory.dmp

    Filesize

    136KB

  • memory/4620-57-0x0000000004B70000-0x0000000004B8A000-memory.dmp

    Filesize

    104KB

  • memory/4620-58-0x0000000007170000-0x000000000717A000-memory.dmp

    Filesize

    40KB

  • memory/4620-59-0x0000000007380000-0x0000000007416000-memory.dmp

    Filesize

    600KB

  • memory/4620-60-0x0000000007300000-0x0000000007311000-memory.dmp

    Filesize

    68KB

  • memory/4620-19-0x00000000025D0000-0x00000000025E0000-memory.dmp

    Filesize

    64KB

  • memory/4620-62-0x0000000007330000-0x000000000733E000-memory.dmp

    Filesize

    56KB

  • memory/4620-63-0x0000000007340000-0x0000000007354000-memory.dmp

    Filesize

    80KB

  • memory/4620-64-0x0000000007440000-0x000000000745A000-memory.dmp

    Filesize

    104KB

  • memory/4620-65-0x0000000007420000-0x0000000007428000-memory.dmp

    Filesize

    32KB

  • memory/4620-68-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/4620-17-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/4620-15-0x00000000024A0000-0x00000000024D6000-memory.dmp

    Filesize

    216KB