Analysis

  • max time kernel
    148s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/01/2024, 03:58

General

  • Target
    01a908923cbc76874658c47d432424a0.exe
  • Size 86KB
  • Sample240130-ejskfahcgm
  • SHA256 6ba75d8e032bf1a23d50f4426c9f00444bec1b5396f29042a72b652a515b4247
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealerium

C2
  • https://discordapp.com/api/webhooks/1197850806213431377/-zU9uA2NeaYEk4-ozdhgmNljI6NS_w_qcT_cbtxYxZdkUD3JeaKChZp4GXdod-MX3D1Q

Signatures

  • Detect ZGRat V1 34 IoCs
  • Stealerium

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

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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).

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\01a908923cbc76874658c47d432424a0.exe
    "C:\Users\Admin\AppData\Local\Temp\01a908923cbc76874658c47d432424a0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4048
    • C:\Users\Admin\AppData\Local\Temp\01a908923cbc76874658c47d432424a0.exe
      C:\Users\Admin\AppData\Local\Temp\01a908923cbc76874658c47d432424a0.exe
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4588
      • C:\Users\Admin\AppData\Local\Temp\build.exe
        "C:\Users\Admin\AppData\Local\Temp\build.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:3972
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2384
          • C:\Windows\SysWOW64\findstr.exe
            findstr All
            5⤵
              PID:3796
            • C:\Windows\SysWOW64\netsh.exe
              netsh wlan show profile
              5⤵
                PID:972
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:784
              • C:\Windows\SysWOW64\cmd.exe
                "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2760
            • C:\Users\Admin\AppData\Local\Temp\KORID0R.exe
              "C:\Users\Admin\AppData\Local\Temp\KORID0R.exe"
              3⤵
              • Checks computer location settings
              • Drops startup file
              • Executes dropped EXE
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1092
        • C:\Users\Admin\AppData\Local\Temp\CamSnap.exe
          "C:\Users\Admin\AppData\Local\Temp\CamSnap.exe"
          1⤵
          • Executes dropped EXE
          PID:2640
        • C:\Windows\system32\msiexec.exe
          C:\Windows\system32\msiexec.exe /V
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4916
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          1⤵
            PID:3964
          • C:\Windows\SysWOW64\netsh.exe
            netsh wlan show networks mode=bssid
            1⤵
              PID:4336

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  Bookmarks.txt

                  • Path C:\Users\Admin\AppData\Local\8a9daa87b894ce5ab32ff416185f80c4\Admin@AVCIKYMG_en-US\Browsers\Firefox\Bookmarks.txt
                  • Size 105B
                  • SHA256 c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
                  • MD5 SHA1 SHA512

                  OneDrive.txt

                  • Path C:\Users\Admin\AppData\Local\8a9daa87b894ce5ab32ff416185f80c4\Admin@AVCIKYMG_en-US\Directories\OneDrive.txt
                  • Size 25B
                  • SHA256 8ddfc481b1b6ae30815ecce8a73755862f24b3bb7fdebdbf099e037d53eb082e
                  • MD5 SHA1 SHA512

                  Videos.txt

                  • Path C:\Users\Admin\AppData\Local\8a9daa87b894ce5ab32ff416185f80c4\Admin@AVCIKYMG_en-US\Directories\Videos.txt
                  • Size 23B
                  • SHA256 a67aa329b7d878de61671e18cd2f4b011d11cbac67ea779818c6dafad2d70733
                  • MD5 SHA1 SHA512

                  Apps.txt

                  • Path C:\Users\Admin\AppData\Local\8a9daa87b894ce5ab32ff416185f80c4\Admin@AVCIKYMG_en-US\System\Apps.txt
                  • Size 5KB
                  • SHA256 b2a09980fccbdaa79f42dde31228d126f41fe2b0b32545e0fafae0ba1c5ba06d
                  • MD5 SHA1 SHA512 SSDEEP

                  Debug.txt

                  • Path C:\Users\Admin\AppData\Local\8a9daa87b894ce5ab32ff416185f80c4\Admin@AVCIKYMG_en-US\System\Debug.txt
                  • Size 1KB
                  • SHA256 040b15d8981e0e3478fd3635fe9c3de3c83606bb94568763fbde9c5083c03f3e
                  • MD5 SHA1 SHA512

                  Process.txt

                  • Path C:\Users\Admin\AppData\Local\8a9daa87b894ce5ab32ff416185f80c4\Admin@AVCIKYMG_en-US\System\Process.txt
                  • Size 4KB
                  • SHA256 f60758dfdb7b7c2ca8519c638912e2d96718cb9594bc2ed03f4dbe5e82fccea2
                  • MD5 SHA1 SHA512 SSDEEP

                  ProductKey.txt

                  • Path C:\Users\Admin\AppData\Local\8a9daa87b894ce5ab32ff416185f80c4\Admin@AVCIKYMG_en-US\System\ProductKey.txt
                  • Size 29B
                  • SHA256 f6cadfd4e4c25ff3b8cffe54a2af24a757a349abbf4e1142ec4c9789347fe8b3
                  • MD5 SHA1 SHA512

                  msgid.dat

                  • Path C:\Users\Admin\AppData\Local\8a9daa87b894ce5ab32ff416185f80c4\msgid.dat
                  • Size 19B
                  • SHA256 c6fa6d901b81abc2aef38f9db056012545ab593bd4ccb5a1658d352f09c23c3a
                  • MD5 SHA1 SHA512

                  01a908923cbc76874658c47d432424a0.exe.log

                  • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\01a908923cbc76874658c47d432424a0.exe.log
                  • Size 1KB
                  • SHA256 f1ed6ff1cd3df219061e32df1c75d6f48de6484cf50e5ea7d86cd8bcfcb93256
                  • MD5 SHA1 SHA512

                  CamSnap.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\CamSnap.exe
                  • Size 94KB
                  • SHA256 09d95d73ac6828138201142cc519ac46a0456db2ea71240c3fa51d569b0242aa
                  • MD5 SHA1 SHA512 SSDEEP

                  CamSnap.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\CamSnap.exe
                  • Size 31KB
                  • SHA256 1a5dd5c0e3b007c6dc5cf866305f3f97fef34da70901d1e63a6bbff0415205d4
                  • MD5 SHA1 SHA512 SSDEEP

                  CamSnap.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\CamSnap.exe
                  • Size 25KB
                  • SHA256 4bc4b4ee5976b76bbd22d949c84390a0ed7126496c9b1ae7961bcf04bbded34b
                  • MD5 SHA1 SHA512 SSDEEP

                  Passwords.txt

                  • Path C:\Users\Admin\AppData\Local\Temp\Data\Passwords.txt
                  • Size 234B
                  • SHA256 8a947e0921f9cfada15c19a72f0ff31b38ad4602106c6ee95685d61c223c9a35
                  • MD5 SHA1 SHA512

                  KORID0R.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\KORID0R.exe
                  • Size 42KB
                  • SHA256 4810a91635a3c53c20d341a714011364b3bcd17dafebe4d4149b763d993bf7f0
                  • MD5 SHA1 SHA512 SSDEEP

                  KORID0R.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\KORID0R.exe
                  • Size 139KB
                  • SHA256 a9a7bec31dc945463227c1fbf5bfd7de9059f74ef4032c4179e8611b17fa55b2
                  • MD5 SHA1 SHA512 SSDEEP

                  KORID0R.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\KORID0R.exe
                  • Size 1KB
                  • SHA256 c604edffe63bc68cddf7db0762aa4f67576490d57fe2170a2a438552e0ad394f
                  • MD5 SHA1 SHA512

                  build.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\build.exe
                  • Size 114KB
                  • SHA256 e36077bdd7b31ccaba7810553ee1d7998d54bfa45539bb8c45667d94f59e3cd2
                  • MD5 SHA1 SHA512 SSDEEP

                  build.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\build.exe
                  • Size 56KB
                  • SHA256 03b40bd0ac0e945f50e7e3558af3954a6c13da5608774d28c9ef0729892b3935
                  • MD5 SHA1 SHA512 SSDEEP

                  build.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\build.exe
                  • Size 313KB
                  • SHA256 1a377c77897df2c785791306b3a76bd323c56f6f6858b3026603901dc22644ac
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/1092-983-0x000001B672430000-0x000001B672440000-memory.dmp

                  memory/1092-1041-0x00007FFF930F0000-0x00007FFF93BB1000-memory.dmp

                  memory/1092-979-0x00007FFF930F0000-0x00007FFF93BB1000-memory.dmp

                  memory/1092-975-0x000001B66FC30000-0x000001B66FDA8000-memory.dmp

                  memory/1092-999-0x000001B672F80000-0x000001B672FD0000-memory.dmp

                  memory/2640-997-0x00007FFF930F0000-0x00007FFF93BB1000-memory.dmp

                  memory/2640-996-0x000001D9B8440000-0x000001D9B845E000-memory.dmp

                  memory/2640-998-0x00007FFF930F0000-0x00007FFF93BB1000-memory.dmp

                  memory/3972-1313-0x00000000065D0000-0x0000000006682000-memory.dmp

                  memory/3972-1032-0x0000000004E10000-0x0000000004E20000-memory.dmp

                  memory/3972-1047-0x0000000004DF0000-0x0000000004DF8000-memory.dmp

                  memory/3972-1046-0x0000000005360000-0x0000000005386000-memory.dmp

                  memory/3972-1045-0x00000000052D0000-0x0000000005362000-memory.dmp

                  memory/3972-1048-0x0000000004E00000-0x0000000004E0A000-memory.dmp

                  memory/3972-1050-0x00000000062C0000-0x00000000062DE000-memory.dmp

                  memory/3972-1049-0x00000000062A0000-0x00000000062A8000-memory.dmp

                  memory/3972-1239-0x0000000004E10000-0x0000000004E20000-memory.dmp

                  memory/3972-1241-0x00000000064A0000-0x000000000651A000-memory.dmp

                  memory/3972-980-0x0000000004D30000-0x0000000004D96000-memory.dmp

                  memory/3972-1315-0x00000000066D0000-0x00000000066F2000-memory.dmp

                  memory/3972-981-0x00000000746A0000-0x0000000074E50000-memory.dmp

                  memory/3972-1316-0x0000000007B70000-0x0000000007EC4000-memory.dmp

                  memory/3972-1318-0x00000000746A0000-0x0000000074E50000-memory.dmp

                  memory/3972-978-0x0000000000340000-0x00000000004D2000-memory.dmp

                  memory/3972-1329-0x0000000004E10000-0x0000000004E20000-memory.dmp

                  memory/3972-1330-0x0000000004E10000-0x0000000004E20000-memory.dmp

                  memory/4048-41-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-45-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-943-0x00000000746A0000-0x0000000074E50000-memory.dmp

                  memory/4048-0-0x0000000000FC0000-0x0000000000FDC000-memory.dmp

                  memory/4048-2-0x0000000005AA0000-0x0000000005AB0000-memory.dmp

                  memory/4048-3-0x00000000087B0000-0x0000000008D1A000-memory.dmp

                  memory/4048-4-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-939-0x0000000009B40000-0x000000000A0E4000-memory.dmp

                  memory/4048-938-0x0000000008DA0000-0x0000000008DEC000-memory.dmp

                  memory/4048-5-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-937-0x0000000009090000-0x0000000009590000-memory.dmp

                  memory/4048-936-0x0000000005430000-0x0000000005431000-memory.dmp

                  memory/4048-67-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-63-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-65-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-61-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-59-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-53-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-57-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-55-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-51-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-49-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-47-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-7-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-43-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-1-0x00000000746A0000-0x0000000074E50000-memory.dmp

                  memory/4048-17-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-39-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-37-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-35-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-33-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-31-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-29-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-27-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-25-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-23-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-21-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-19-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-13-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-15-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-11-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4048-9-0x00000000087B0000-0x0000000008D14000-memory.dmp

                  memory/4588-947-0x0000000005A70000-0x0000000005A80000-memory.dmp

                  memory/4588-982-0x00000000746A0000-0x0000000074E50000-memory.dmp

                  memory/4588-945-0x0000000000400000-0x0000000000C0A000-memory.dmp

                  memory/4588-944-0x00000000746A0000-0x0000000074E50000-memory.dmp

                  memory/4588-946-0x00000000058C0000-0x0000000005952000-memory.dmp

                  memory/4588-948-0x0000000005870000-0x000000000587A000-memory.dmp