Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-05-2024 01:44

General

  • Target

    20052024INV.exe

  • Size

    765KB

  • MD5

    6d905a81e00e45c08d8a01655510df3d

  • SHA1

    2b6f3729d11cb3db0f026bd81e9e003c28a89508

  • SHA256

    ed9bf8853a225553c0bb6dd079a0390d9c34c66d9c6f88da4ccfa7ce95740c48

  • SHA512

    87aac0a731925c24bc8f256a1bad6e9b9c62aa7e4ea87f9daf1a155e10ac60650d2282efa22e32e8601bdfe2cb8f069e5a38910ef041615abe4991671a9751f6

  • SSDEEP

    12288:PIKWET/mr9K+22BEEzFatn7jO4kqEVSqa/SN948fRKwgRAeOUNXaY8iJPb7yBFwx:jWtb3BEFAuKN+8f8CUNXksXyB1

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.klptruck.hu
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    kCu}[Z7z+)S[

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.klptruck.hu
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    kCu}[Z7z+)S[

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.

  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20052024INV.exe
    "C:\Users\Admin\AppData\Local\Temp\20052024INV.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4280
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\IluLgtKJ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1492
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IluLgtKJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8D0D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2292

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gr4aqnlb.w3t.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp8D0D.tmp

    Filesize

    1KB

    MD5

    657d524d835cad1ff627bdd75e7fed71

    SHA1

    5802e11907161c58cb406a23c06981cdaba88596

    SHA256

    faf700b0f2b4b94e00cfdd984549943df2ea7987e9bac133ebe08de55084029b

    SHA512

    36dba47d5a0b6c7f8daac79a383589372505e04acb0525d3ea458a093c7a8b0939e91b9713e89d1c743474311a3d014c40b4affe1ef937a69d6921c99edaa93d

  • memory/1492-34-0x0000000005590000-0x00000000058E4000-memory.dmp

    Filesize

    3.3MB

  • memory/1492-55-0x0000000006F90000-0x0000000006F9A000-memory.dmp

    Filesize

    40KB

  • memory/1492-65-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/1492-35-0x0000000005BE0000-0x0000000005BFE000-memory.dmp

    Filesize

    120KB

  • memory/1492-61-0x0000000007240000-0x0000000007248000-memory.dmp

    Filesize

    32KB

  • memory/1492-60-0x0000000007260000-0x000000000727A000-memory.dmp

    Filesize

    104KB

  • memory/1492-59-0x0000000007160000-0x0000000007174000-memory.dmp

    Filesize

    80KB

  • memory/1492-58-0x0000000007150000-0x000000000715E000-memory.dmp

    Filesize

    56KB

  • memory/1492-57-0x0000000007120000-0x0000000007131000-memory.dmp

    Filesize

    68KB

  • memory/1492-15-0x00000000022C0000-0x00000000022F6000-memory.dmp

    Filesize

    216KB

  • memory/1492-16-0x0000000004E30000-0x0000000005458000-memory.dmp

    Filesize

    6.2MB

  • memory/1492-56-0x00000000071A0000-0x0000000007236000-memory.dmp

    Filesize

    600KB

  • memory/1492-18-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/1492-51-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/1492-20-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/1492-36-0x0000000005C60000-0x0000000005CAC000-memory.dmp

    Filesize

    304KB

  • memory/1492-53-0x0000000007540000-0x0000000007BBA000-memory.dmp

    Filesize

    6.5MB

  • memory/1492-23-0x0000000004DB0000-0x0000000004E16000-memory.dmp

    Filesize

    408KB

  • memory/1492-29-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/1492-22-0x0000000004D10000-0x0000000004D32000-memory.dmp

    Filesize

    136KB

  • memory/1492-54-0x0000000004990000-0x00000000049AA000-memory.dmp

    Filesize

    104KB

  • memory/1492-52-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/1492-49-0x00000000061E0000-0x00000000061FE000-memory.dmp

    Filesize

    120KB

  • memory/1492-37-0x00000000061A0000-0x00000000061D2000-memory.dmp

    Filesize

    200KB

  • memory/1492-48-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/1492-38-0x000000006F600000-0x000000006F64C000-memory.dmp

    Filesize

    304KB

  • memory/1492-50-0x0000000006E10000-0x0000000006EB3000-memory.dmp

    Filesize

    652KB

  • memory/4280-2-0x00000000052D0000-0x0000000005874000-memory.dmp

    Filesize

    5.6MB

  • memory/4280-21-0x0000000005F40000-0x0000000005FA6000-memory.dmp

    Filesize

    408KB

  • memory/4280-5-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/4280-66-0x000000007487E000-0x000000007487F000-memory.dmp

    Filesize

    4KB

  • memory/4280-1-0x0000000000310000-0x00000000003D6000-memory.dmp

    Filesize

    792KB

  • memory/4280-19-0x0000000005E80000-0x0000000005EC2000-memory.dmp

    Filesize

    264KB

  • memory/4280-3-0x0000000004C70000-0x0000000004D02000-memory.dmp

    Filesize

    584KB

  • memory/4280-10-0x00000000106E0000-0x000000001077C000-memory.dmp

    Filesize

    624KB

  • memory/4280-9-0x000000000CEE0000-0x000000000CF64000-memory.dmp

    Filesize

    528KB

  • memory/4280-8-0x0000000004600000-0x0000000004610000-memory.dmp

    Filesize

    64KB

  • memory/4280-7-0x0000000004ED0000-0x0000000004EDC000-memory.dmp

    Filesize

    48KB

  • memory/4280-6-0x0000000004F60000-0x0000000004F82000-memory.dmp

    Filesize

    136KB

  • memory/4280-62-0x0000000007760000-0x00000000077B0000-memory.dmp

    Filesize

    320KB

  • memory/4280-4-0x0000000004E40000-0x0000000004E4A000-memory.dmp

    Filesize

    40KB

  • memory/4280-0-0x000000007487E000-0x000000007487F000-memory.dmp

    Filesize

    4KB

  • memory/4280-67-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB