Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    25/09/2024, 19:06

General

  • Target
    Z-Launcher-GPS5.exe
  • Size 1.6MB
  • Sample240925-xsgteascpp
  • SHA256 5b9a78809c6718019832322023e94982761032adb51e1a44ba139d4f63369542
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealerium

C2
  • https://discord.com/api/webhooks/1279142597218013264/8mlljrcp8pu-na1Kxr-pwaQv-IeIN4qXz3iwqKTXrY-DPCA89wjqOAQeRKn7qMqu3BR6

Signatures

  • Stealerium

    An open source info stealer written in C# first seen in May 2022.

  • 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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • 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.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Z-Launcher-GPS5.exe
    "C:\Users\Admin\AppData\Local\Temp\Z-Launcher-GPS5.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:4092
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Wi-Fi Discovery
      • Suspicious use of WriteProcessMemory
      PID:244
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4916
      • C:\Windows\SysWOW64\netsh.exe
        netsh wlan show profile
        3⤵
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Wi-Fi Discovery
        PID:236
      • C:\Windows\SysWOW64\findstr.exe
        findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3552
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3068
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2668
      • C:\Windows\SysWOW64\netsh.exe
        netsh wlan show networks mode=bssid
        3⤵
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2296
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 3112
      2⤵
      • Program crash
      PID:5032
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3360
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4092 -ip 4092
    1⤵
      PID:2340
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2296
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7ffb8fa23cb8,0x7ffb8fa23cc8,0x7ffb8fa23cd8
        2⤵
          PID:760
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1892,2762065317142047406,3564240499487482783,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1872 /prefetch:2
          2⤵
            PID:4692
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1892,2762065317142047406,3564240499487482783,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2288 /prefetch:3
            2⤵
              PID:332
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1892,2762065317142047406,3564240499487482783,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2500 /prefetch:8
              2⤵
                PID:1664
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1892,2762065317142047406,3564240499487482783,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3260 /prefetch:1
                2⤵
                  PID:2196
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1892,2762065317142047406,3564240499487482783,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3296 /prefetch:1
                  2⤵
                    PID:4324
                • C:\Windows\System32\CompPkgSrv.exe
                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                  1⤵
                    PID:2056
                  • C:\Windows\System32\CompPkgSrv.exe
                    C:\Windows\System32\CompPkgSrv.exe -Embedding
                    1⤵
                      PID:2276

                    Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          Bookmarks.txt

                          • Path C:\Users\Admin\AppData\Local\3afd5cae877a40a96c9af4bf467f92c6\Admin@WMCTSIEG_en-US\Browsers\Firefox\Bookmarks.txt
                          • Size 105B
                          • SHA256 c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
                          • MD5 SHA1 SHA512

                          OneDrive.txt

                          • Path C:\Users\Admin\AppData\Local\3afd5cae877a40a96c9af4bf467f92c6\Admin@WMCTSIEG_en-US\Directories\OneDrive.txt
                          • Size 25B
                          • SHA256 8ddfc481b1b6ae30815ecce8a73755862f24b3bb7fdebdbf099e037d53eb082e
                          • MD5 SHA1 SHA512

                          Startup.txt

                          • Path C:\Users\Admin\AppData\Local\3afd5cae877a40a96c9af4bf467f92c6\Admin@WMCTSIEG_en-US\Directories\Startup.txt
                          • Size 24B
                          • SHA256 889ed51f9c16a4b989bda57957d3e132b1a9c117ee84e208207f2fa208a59483
                          • MD5 SHA1 SHA512

                          Videos.txt

                          • Path C:\Users\Admin\AppData\Local\3afd5cae877a40a96c9af4bf467f92c6\Admin@WMCTSIEG_en-US\Directories\Videos.txt
                          • Size 23B
                          • SHA256 a67aa329b7d878de61671e18cd2f4b011d11cbac67ea779818c6dafad2d70733
                          • MD5 SHA1 SHA512

                          Apps.txt

                          • Path C:\Users\Admin\AppData\Local\3afd5cae877a40a96c9af4bf467f92c6\Admin@WMCTSIEG_en-US\System\Apps.txt
                          • Size 4KB
                          • SHA256 2071ba0d1e2a3a0b2f5442085832b0c84f1463b80624d84f67fde018ad777ec1
                          • MD5 SHA1 SHA512 SSDEEP

                          Debug.txt

                          • Path C:\Users\Admin\AppData\Local\3afd5cae877a40a96c9af4bf467f92c6\Admin@WMCTSIEG_en-US\System\Debug.txt
                          • Size 1KB
                          • SHA256 73dc4a591388de0a06db7a0a6a0897372d2db307675b84bcff6c7d0bd2bc87be
                          • MD5 SHA1 SHA512

                          Process.txt

                          • Path C:\Users\Admin\AppData\Local\3afd5cae877a40a96c9af4bf467f92c6\Admin@WMCTSIEG_en-US\System\Process.txt
                          • Size 4KB
                          • SHA256 bd5198d93f5cf18fe499126d58a38f4fc63d70829671064505238b7c6ae51381
                          • MD5 SHA1 SHA512 SSDEEP

                          ProductKey.txt

                          • Path C:\Users\Admin\AppData\Local\3afd5cae877a40a96c9af4bf467f92c6\Admin@WMCTSIEG_en-US\System\ProductKey.txt
                          • Size 29B
                          • SHA256 f6cadfd4e4c25ff3b8cffe54a2af24a757a349abbf4e1142ec4c9789347fe8b3
                          • MD5 SHA1 SHA512

                          settings.dat

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                          • Size 152B
                          • SHA256 dfa9a8b54936607a5250bec0ed3e2a24f96f4929ca550115a91d0d5d68e4d08e
                          • MD5 SHA1 SHA512

                          settings.dat

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                          • Size 152B
                          • SHA256 2eecaacf3f2582e202689a16b0ac1715c628d32f54261671cf67ba6abbf6c9f9
                          • MD5 SHA1 SHA512

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                          • Size 5KB
                          • SHA256 55b3d8469ee12298dd2a5bc6982bd012df8bf8b3698d101f6a3c6ee931308d39
                          • MD5 SHA1 SHA512 SSDEEP

                          memory/4092-195-0x0000000006250000-0x00000000062CA000-memory.dmp

                          memory/4092-2-0x0000000004BA0000-0x0000000004C06000-memory.dmp

                          memory/4092-0-0x0000000074BBE000-0x0000000074BBF000-memory.dmp

                          memory/4092-157-0x0000000074BB0000-0x0000000075361000-memory.dmp

                          memory/4092-8-0x00000000051E0000-0x0000000005206000-memory.dmp

                          memory/4092-10-0x0000000006130000-0x000000000613A000-memory.dmp

                          memory/4092-7-0x0000000005150000-0x00000000051E2000-memory.dmp

                          memory/4092-74-0x0000000007060000-0x0000000007606000-memory.dmp

                          memory/4092-3-0x0000000074BB0000-0x0000000075361000-memory.dmp

                          memory/4092-110-0x0000000074BBE000-0x0000000074BBF000-memory.dmp

                          memory/4092-1-0x0000000000100000-0x000000000029C000-memory.dmp

                          memory/4092-264-0x00000000067B0000-0x0000000006862000-memory.dmp

                          memory/4092-266-0x0000000074BB0000-0x0000000075361000-memory.dmp

                          memory/4092-69-0x0000000006410000-0x00000000064A2000-memory.dmp

                          memory/4092-9-0x0000000005210000-0x0000000005218000-memory.dmp

                          memory/4092-12-0x0000000006160000-0x000000000617E000-memory.dmp

                          memory/4092-11-0x0000000006140000-0x0000000006148000-memory.dmp