Analysis

  • max time kernel
    148s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 01:08

General

  • Target

    14ce526032b5ba32eee02d91119ed9fe15b9590b18a359d04627e1e97d7a6e86.exe

  • Size

    844KB

  • MD5

    1449687555ad3c34204cbb9dc286603a

  • SHA1

    e43f55d0e375853f27c9786193d7614289c7f7b6

  • SHA256

    14ce526032b5ba32eee02d91119ed9fe15b9590b18a359d04627e1e97d7a6e86

  • SHA512

    d848e98b6031a1d092e9652fed86f4346fcad44d6c5a68bf9776a02f373047f01b72a7b7fd5004950c1f458a2607659cc3415d837e6e7650387bd3909925da76

  • SSDEEP

    12288:sWx504bFtx504bFWxmiuHPRNaQZiZ5hfPBTdPl5yyuQCUGWcfPFkwV8fFX37a:Jw4bjw4bquH5N125TAPQsXFkhn7

Malware Config

Extracted

Credentials

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

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
  • 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 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\14ce526032b5ba32eee02d91119ed9fe15b9590b18a359d04627e1e97d7a6e86.exe
    "C:\Users\Admin\AppData\Local\Temp\14ce526032b5ba32eee02d91119ed9fe15b9590b18a359d04627e1e97d7a6e86.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1836
    • 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\14ce526032b5ba32eee02d91119ed9fe15b9590b18a359d04627e1e97d7a6e86.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4576
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uLhLhiEXSD.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4772
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uLhLhiEXSD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp93C4.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3836

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

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

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

    923ad7f533761e4900218d1d4a869496

    SHA1

    cd212d4dfc83bbd7583b137711284596f2a46f1b

    SHA256

    31c8babcb13466f1c0cd5502d37e618be791cd14ea8cfa927f5bf9e5b81f5e6d

    SHA512

    6d7f45115531fd15e8250598f4c662faa5a61de446325b4ec27967ee8eba1714fa3a337269d8cad4dab82ce0393d06780c8f51dd4cbbc2016d35b47453737457

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rckvhgje.ick.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp93C4.tmp
    Filesize

    1KB

    MD5

    c6cb4a60e2a13479ce97a658a7fcc4e5

    SHA1

    2a51f783aa59790b5a3b3de40f9a084c9a650b70

    SHA256

    e3224b1912946d0e56f4891ac1cc0639ca4d71f2fff5242123e8c596536cdd8d

    SHA512

    66af6ab372fefc76ed651aa7f061d99ff6b139756b939b8bc10374e72d32d88ef32b7a90076abc301d3bc1e84fdb6c2a9b54c5f1db19838350fa5fed33d558ce

  • memory/1836-4-0x0000000004E10000-0x0000000004E1A000-memory.dmp
    Filesize

    40KB

  • memory/1836-87-0x000000007496E000-0x000000007496F000-memory.dmp
    Filesize

    4KB

  • memory/1836-5-0x0000000074960000-0x0000000075110000-memory.dmp
    Filesize

    7.7MB

  • memory/1836-7-0x0000000005190000-0x00000000051AA000-memory.dmp
    Filesize

    104KB

  • memory/1836-8-0x0000000004E40000-0x0000000004E50000-memory.dmp
    Filesize

    64KB

  • memory/1836-9-0x0000000006000000-0x0000000006084000-memory.dmp
    Filesize

    528KB

  • memory/1836-88-0x0000000074960000-0x0000000075110000-memory.dmp
    Filesize

    7.7MB

  • memory/1836-6-0x00000000050A0000-0x000000000513C000-memory.dmp
    Filesize

    624KB

  • memory/1836-23-0x0000000005C10000-0x0000000005C52000-memory.dmp
    Filesize

    264KB

  • memory/1836-3-0x0000000004E60000-0x0000000004EF2000-memory.dmp
    Filesize

    584KB

  • memory/1836-2-0x0000000005410000-0x00000000059B4000-memory.dmp
    Filesize

    5.6MB

  • memory/1836-79-0x0000000006FB0000-0x0000000007000000-memory.dmp
    Filesize

    320KB

  • memory/1836-0-0x000000007496E000-0x000000007496F000-memory.dmp
    Filesize

    4KB

  • memory/1836-1-0x0000000000480000-0x0000000000556000-memory.dmp
    Filesize

    856KB

  • memory/4576-72-0x0000000007080000-0x000000000708A000-memory.dmp
    Filesize

    40KB

  • memory/4576-19-0x0000000004EC0000-0x0000000004F26000-memory.dmp
    Filesize

    408KB

  • memory/4576-29-0x00000000056E0000-0x0000000005A34000-memory.dmp
    Filesize

    3.3MB

  • memory/4576-14-0x00000000023B0000-0x00000000023E6000-memory.dmp
    Filesize

    216KB

  • memory/4576-15-0x0000000004FB0000-0x00000000055D8000-memory.dmp
    Filesize

    6.2MB

  • memory/4576-18-0x0000000004C20000-0x0000000004C42000-memory.dmp
    Filesize

    136KB

  • memory/4576-45-0x0000000005CF0000-0x0000000005D0E000-memory.dmp
    Filesize

    120KB

  • memory/4576-46-0x0000000005D80000-0x0000000005DCC000-memory.dmp
    Filesize

    304KB

  • memory/4576-58-0x000000006F9A0000-0x000000006F9EC000-memory.dmp
    Filesize

    304KB

  • memory/4576-85-0x0000000074960000-0x0000000075110000-memory.dmp
    Filesize

    7.7MB

  • memory/4576-16-0x0000000074960000-0x0000000075110000-memory.dmp
    Filesize

    7.7MB

  • memory/4576-17-0x0000000074960000-0x0000000075110000-memory.dmp
    Filesize

    7.7MB

  • memory/4576-20-0x0000000004F30000-0x0000000004F96000-memory.dmp
    Filesize

    408KB

  • memory/4576-78-0x0000000007330000-0x0000000007338000-memory.dmp
    Filesize

    32KB

  • memory/4576-70-0x0000000007660000-0x0000000007CDA000-memory.dmp
    Filesize

    6.5MB

  • memory/4576-77-0x0000000007350000-0x000000000736A000-memory.dmp
    Filesize

    104KB

  • memory/4576-76-0x0000000007250000-0x0000000007264000-memory.dmp
    Filesize

    80KB

  • memory/4576-74-0x0000000007210000-0x0000000007221000-memory.dmp
    Filesize

    68KB

  • memory/4576-75-0x0000000007240000-0x000000000724E000-memory.dmp
    Filesize

    56KB

  • memory/4772-73-0x0000000007D30000-0x0000000007DC6000-memory.dmp
    Filesize

    600KB

  • memory/4772-22-0x0000000074960000-0x0000000075110000-memory.dmp
    Filesize

    7.7MB

  • memory/4772-71-0x0000000007AB0000-0x0000000007ACA000-memory.dmp
    Filesize

    104KB

  • memory/4772-69-0x0000000007980000-0x0000000007A23000-memory.dmp
    Filesize

    652KB

  • memory/4772-47-0x0000000007910000-0x0000000007942000-memory.dmp
    Filesize

    200KB

  • memory/4772-68-0x0000000007950000-0x000000000796E000-memory.dmp
    Filesize

    120KB

  • memory/4772-86-0x0000000074960000-0x0000000075110000-memory.dmp
    Filesize

    7.7MB

  • memory/4772-48-0x000000006F9A0000-0x000000006F9EC000-memory.dmp
    Filesize

    304KB

  • memory/4772-44-0x0000000074960000-0x0000000075110000-memory.dmp
    Filesize

    7.7MB

  • memory/4772-34-0x0000000074960000-0x0000000075110000-memory.dmp
    Filesize

    7.7MB