Analysis

  • max time kernel
    117s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2024 16:16

General

  • Target

    tmp5inh3zk1.exe

  • Size

    733KB

  • MD5

    c80a6ab88197ae041f37e89de88c432c

  • SHA1

    2ff5a4f5d4c598e910a331e04dcc17a6a8c0cd82

  • SHA256

    b653369d65923416167ddd72e78411fed77a2b7be24bf6c1eba06512a232594a

  • SHA512

    7892a721f51a7d686129638ee47c4f7f15cdaaa221004cb4a52fde29111c44aac03b3a7dcc3044ae624f07870cedc00cc0e884e1801432d6bb9e6511acc0cdb9

  • SSDEEP

    12288:+L7WTG4meL6865A0phF2/lDHwu+yIlohn+9T5FfbsCsaYbRu:MSTVh6RNQIlo03NsCTIR

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.bonnyriggdentalsurgery.com.au
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    eL)rV@QBKA#m

Extracted

Family

agenttesla

Credentials

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 3 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).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp5inh3zk1.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp5inh3zk1.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1004
    • 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\tmp5inh3zk1.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:208
    • C:\Users\Admin\AppData\Local\Temp\tmp5inh3zk1.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp5inh3zk1.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:972

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\tmp5inh3zk1.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_geexpacl.fvz.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/208-51-0x0000000007AA0000-0x0000000007AAA000-memory.dmp

    Filesize

    40KB

  • memory/208-52-0x0000000007CB0000-0x0000000007D46000-memory.dmp

    Filesize

    600KB

  • memory/208-33-0x00000000060D0000-0x0000000006424000-memory.dmp

    Filesize

    3.3MB

  • memory/208-49-0x0000000008070000-0x00000000086EA000-memory.dmp

    Filesize

    6.5MB

  • memory/208-48-0x0000000007700000-0x00000000077A3000-memory.dmp

    Filesize

    652KB

  • memory/208-47-0x00000000076D0000-0x00000000076EE000-memory.dmp

    Filesize

    120KB

  • memory/208-60-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/208-57-0x0000000007D50000-0x0000000007D58000-memory.dmp

    Filesize

    32KB

  • memory/208-56-0x0000000007D70000-0x0000000007D8A000-memory.dmp

    Filesize

    104KB

  • memory/208-37-0x00000000709D0000-0x0000000070A1C000-memory.dmp

    Filesize

    304KB

  • memory/208-55-0x0000000007C70000-0x0000000007C84000-memory.dmp

    Filesize

    80KB

  • memory/208-54-0x0000000007C60000-0x0000000007C6E000-memory.dmp

    Filesize

    56KB

  • memory/208-23-0x0000000005F70000-0x0000000005FD6000-memory.dmp

    Filesize

    408KB

  • memory/208-16-0x0000000002E20000-0x0000000002E56000-memory.dmp

    Filesize

    216KB

  • memory/208-18-0x00000000058D0000-0x0000000005EF8000-memory.dmp

    Filesize

    6.2MB

  • memory/208-36-0x0000000006CE0000-0x0000000006D12000-memory.dmp

    Filesize

    200KB

  • memory/208-19-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/208-35-0x0000000006790000-0x00000000067DC000-memory.dmp

    Filesize

    304KB

  • memory/208-21-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/208-22-0x0000000005740000-0x0000000005762000-memory.dmp

    Filesize

    136KB

  • memory/208-34-0x00000000066E0000-0x00000000066FE000-memory.dmp

    Filesize

    120KB

  • memory/208-53-0x0000000007C30000-0x0000000007C41000-memory.dmp

    Filesize

    68KB

  • memory/208-50-0x0000000007A30000-0x0000000007A4A000-memory.dmp

    Filesize

    104KB

  • memory/972-15-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/972-20-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/972-17-0x0000000005610000-0x0000000005676000-memory.dmp

    Filesize

    408KB

  • memory/972-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/972-61-0x0000000006E30000-0x0000000006E80000-memory.dmp

    Filesize

    320KB

  • memory/972-62-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/972-63-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/1004-9-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/1004-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

    Filesize

    4KB

  • memory/1004-4-0x0000000004D00000-0x0000000004D0A000-memory.dmp

    Filesize

    40KB

  • memory/1004-3-0x0000000004C40000-0x0000000004CD2000-memory.dmp

    Filesize

    584KB

  • memory/1004-14-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/1004-2-0x0000000005100000-0x00000000056A4000-memory.dmp

    Filesize

    5.6MB

  • memory/1004-10-0x0000000007830000-0x00000000078B4000-memory.dmp

    Filesize

    528KB

  • memory/1004-1-0x00000000002F0000-0x00000000003AE000-memory.dmp

    Filesize

    760KB

  • memory/1004-8-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

    Filesize

    4KB

  • memory/1004-7-0x0000000006500000-0x000000000651A000-memory.dmp

    Filesize

    104KB

  • memory/1004-6-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/1004-5-0x0000000004F60000-0x0000000004FFC000-memory.dmp

    Filesize

    624KB