Analysis

  • max time kernel
    116s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-09-2024 03:22

General

  • Target

    ZHONG XING HAI PARTICULARS.pdf.scr.exe

  • Size

    663KB

  • MD5

    bfcedc9d95269f2df75616f997c46197

  • SHA1

    5dea7b3d1f4b0863f12bc9b7ede33e090955ae83

  • SHA256

    cb9c62c96c1409b6151ec4cdcda1b0750a13dd61352ca9ed91382a978cc8bba0

  • SHA512

    1192d018795f3f9bdc73661458f89f7b15b47eabe9ef9585d29b7d922faf91d8f76ef65067c7d2b93acfbfee308ae5eb32adb1774171b8ad96c92828a959230a

  • SSDEEP

    12288:8e7kvDoQEmK8F7A5yAp1Akk7PwWllFK5H1QzvF/SNlX8S/5vj+NhgS86g9lx/rc:8eogmhpApmkk7IWl8QzZglX8m57+XV8l

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    beirutrest.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    9yXQ39wz(uL+

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://beirutrest.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    9yXQ39wz(uL+

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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 2 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ZHONG XING HAI PARTICULARS.pdf.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\ZHONG XING HAI PARTICULARS.pdf.scr.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:2936
    • 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\ZHONG XING HAI PARTICULARS.pdf.scr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2152
    • C:\Users\Admin\AppData\Local\Temp\ZHONG XING HAI PARTICULARS.pdf.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\ZHONG XING HAI PARTICULARS.pdf.scr.exe"
      2⤵
        PID:3148
      • C:\Users\Admin\AppData\Local\Temp\ZHONG XING HAI PARTICULARS.pdf.scr.exe
        "C:\Users\Admin\AppData\Local\Temp\ZHONG XING HAI PARTICULARS.pdf.scr.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3896

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ZHONG XING HAI PARTICULARS.pdf.scr.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_trl5a2dq.mdj.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/2152-51-0x0000000007430000-0x000000000744A000-memory.dmp

      Filesize

      104KB

    • memory/2152-52-0x00000000074A0000-0x00000000074AA000-memory.dmp

      Filesize

      40KB

    • memory/2152-23-0x0000000005A10000-0x0000000005A76000-memory.dmp

      Filesize

      408KB

    • memory/2152-22-0x0000000005970000-0x0000000005992000-memory.dmp

      Filesize

      136KB

    • memory/2152-62-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/2152-59-0x0000000007750000-0x0000000007758000-memory.dmp

      Filesize

      32KB

    • memory/2152-57-0x0000000007770000-0x000000000778A000-memory.dmp

      Filesize

      104KB

    • memory/2152-56-0x0000000007670000-0x0000000007684000-memory.dmp

      Filesize

      80KB

    • memory/2152-55-0x0000000007660000-0x000000000766E000-memory.dmp

      Filesize

      56KB

    • memory/2152-54-0x0000000007630000-0x0000000007641000-memory.dmp

      Filesize

      68KB

    • memory/2152-53-0x00000000076B0000-0x0000000007746000-memory.dmp

      Filesize

      600KB

    • memory/2152-35-0x00000000060F0000-0x000000000610E000-memory.dmp

      Filesize

      120KB

    • memory/2152-50-0x0000000007A70000-0x00000000080EA000-memory.dmp

      Filesize

      6.5MB

    • memory/2152-16-0x0000000004B40000-0x0000000004B76000-memory.dmp

      Filesize

      216KB

    • memory/2152-17-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/2152-49-0x00000000070F0000-0x0000000007193000-memory.dmp

      Filesize

      652KB

    • memory/2152-19-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/2152-21-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/2152-48-0x0000000006710000-0x000000000672E000-memory.dmp

      Filesize

      120KB

    • memory/2152-38-0x0000000070F10000-0x0000000070F5C000-memory.dmp

      Filesize

      304KB

    • memory/2152-37-0x00000000066D0000-0x0000000006702000-memory.dmp

      Filesize

      200KB

    • memory/2152-36-0x00000000061E0000-0x000000000622C000-memory.dmp

      Filesize

      304KB

    • memory/2152-18-0x00000000051B0000-0x00000000057D8000-memory.dmp

      Filesize

      6.2MB

    • memory/2152-34-0x0000000005C20000-0x0000000005F74000-memory.dmp

      Filesize

      3.3MB

    • memory/2936-0-0x000000007529E000-0x000000007529F000-memory.dmp

      Filesize

      4KB

    • memory/2936-2-0x0000000005280000-0x0000000005824000-memory.dmp

      Filesize

      5.6MB

    • memory/2936-4-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/2936-6-0x0000000004CB0000-0x0000000004CC0000-memory.dmp

      Filesize

      64KB

    • memory/2936-7-0x000000007529E000-0x000000007529F000-memory.dmp

      Filesize

      4KB

    • memory/2936-1-0x0000000000110000-0x00000000001BC000-memory.dmp

      Filesize

      688KB

    • memory/2936-15-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/2936-3-0x0000000004BB0000-0x0000000004C42000-memory.dmp

      Filesize

      584KB

    • memory/2936-8-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/2936-5-0x0000000004C60000-0x0000000004C6A000-memory.dmp

      Filesize

      40KB

    • memory/2936-9-0x00000000060F0000-0x0000000006172000-memory.dmp

      Filesize

      520KB

    • memory/2936-10-0x0000000008860000-0x00000000088FC000-memory.dmp

      Filesize

      624KB

    • memory/3896-11-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/3896-14-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/3896-58-0x00000000070B0000-0x0000000007100000-memory.dmp

      Filesize

      320KB

    • memory/3896-20-0x00000000057C0000-0x0000000005826000-memory.dmp

      Filesize

      408KB

    • memory/3896-24-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/3896-63-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/3896-64-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB