Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/01/2024, 03:58

General

  • Target
    ac15ae1e49f4272e8d38b5fd5573ce35.exe
  • Size 81KB
  • Sample240130-ejqqvahcgl
  • SHA256 c886e938dd26ca17bd29feea36d4c487483bb05d86b3c382e045b88925b27149
  • 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 39 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac15ae1e49f4272e8d38b5fd5573ce35.exe
    "C:\Users\Admin\AppData\Local\Temp\ac15ae1e49f4272e8d38b5fd5573ce35.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2124
    • C:\Users\Admin\AppData\Local\Temp\ac15ae1e49f4272e8d38b5fd5573ce35.exe
      C:\Users\Admin\AppData\Local\Temp\ac15ae1e49f4272e8d38b5fd5573ce35.exe
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4112
      • C:\Users\Admin\AppData\Local\Temp\@dr@[email protected]
        "C:\Users\Admin\AppData\Local\Temp\@dr@[email protected]"
        3⤵
        • Checks computer location settings
        • Drops startup file
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3324
        • C:\Users\Admin\AppData\Local\Temp\CamSnap.exe
          "C:\Users\Admin\AppData\Local\Temp\CamSnap.exe"
          4⤵
          • Executes dropped EXE
          PID:4172
      • 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:1080
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:636
          • C:\Windows\SysWOW64\chcp.com
            chcp 65001
            5⤵
              PID:1340
            • C:\Windows\SysWOW64\netsh.exe
              netsh wlan show profile
              5⤵
                PID:4392
              • C:\Windows\SysWOW64\findstr.exe
                findstr All
                5⤵
                  PID:116
              • C:\Windows\SysWOW64\cmd.exe
                "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:3508
                • C:\Windows\SysWOW64\netsh.exe
                  netsh wlan show networks mode=bssid
                  5⤵
                    PID:2788
                  • C:\Windows\SysWOW64\chcp.com
                    chcp 65001
                    5⤵
                      PID:3004
              • C:\Users\Admin\AppData\Local\Temp\ac15ae1e49f4272e8d38b5fd5573ce35.exe
                C:\Users\Admin\AppData\Local\Temp\ac15ae1e49f4272e8d38b5fd5573ce35.exe
                2⤵
                  PID:4696
              • C:\Windows\system32\msiexec.exe
                C:\Windows\system32\msiexec.exe /V
                1⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:1568

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    Bookmarks.txt

                    • Path C:\Users\Admin\AppData\Local\43eb28f2e8b3bfdaa1e708693f286457\Admin@EYHRDPTG_en-US\Browsers\Firefox\Bookmarks.txt
                    • Size 105B
                    • SHA256 c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
                    • MD5 SHA1 SHA512

                    OneDrive.txt

                    • Path C:\Users\Admin\AppData\Local\43eb28f2e8b3bfdaa1e708693f286457\Admin@EYHRDPTG_en-US\Directories\OneDrive.txt
                    • Size 25B
                    • SHA256 8ddfc481b1b6ae30815ecce8a73755862f24b3bb7fdebdbf099e037d53eb082e
                    • MD5 SHA1 SHA512

                    Videos.txt

                    • Path C:\Users\Admin\AppData\Local\43eb28f2e8b3bfdaa1e708693f286457\Admin@EYHRDPTG_en-US\Directories\Videos.txt
                    • Size 23B
                    • SHA256 a67aa329b7d878de61671e18cd2f4b011d11cbac67ea779818c6dafad2d70733
                    • MD5 SHA1 SHA512

                    Apps.txt

                    • Path C:\Users\Admin\AppData\Local\43eb28f2e8b3bfdaa1e708693f286457\Admin@EYHRDPTG_en-US\System\Apps.txt
                    • Size 2KB
                    • SHA256 def4af4d5c0731ec94e1d91037d25a801c2ed5c3b4f5ee45fdc132ca4aca7fa2
                    • MD5 SHA1 SHA512

                    Apps.txt

                    • Path C:\Users\Admin\AppData\Local\43eb28f2e8b3bfdaa1e708693f286457\Admin@EYHRDPTG_en-US\System\Apps.txt
                    • Size 4KB
                    • SHA256 1e7de68a00062bb4b2d3626f48d7d40d87b11077e7ac45dd5b41a01cbc520129
                    • MD5 SHA1 SHA512 SSDEEP

                    Apps.txt

                    • Path C:\Users\Admin\AppData\Local\43eb28f2e8b3bfdaa1e708693f286457\Admin@EYHRDPTG_en-US\System\Apps.txt
                    • Size 5KB
                    • SHA256 464943501c3413d695b38a23e9c9469dcbfd5f6c6b707e5f24ff4cbd804e7e0b
                    • MD5 SHA1 SHA512 SSDEEP

                    Debug.txt

                    • Path C:\Users\Admin\AppData\Local\43eb28f2e8b3bfdaa1e708693f286457\Admin@EYHRDPTG_en-US\System\Debug.txt
                    • Size 1KB
                    • SHA256 be164dd16b0e17fd0a4bbdc2e05c759ee332893542ccf6e2688fab52263bc131
                    • MD5 SHA1 SHA512

                    Process.txt

                    • Path C:\Users\Admin\AppData\Local\43eb28f2e8b3bfdaa1e708693f286457\Admin@EYHRDPTG_en-US\System\Process.txt
                    • Size 4KB
                    • SHA256 5d8d6369f0361650f874a9f6bd56bcf831c0643490f2e31a2028989ebb876e1e
                    • MD5 SHA1 SHA512 SSDEEP

                    ProductKey.txt

                    • Path C:\Users\Admin\AppData\Local\43eb28f2e8b3bfdaa1e708693f286457\Admin@EYHRDPTG_en-US\System\ProductKey.txt
                    • Size 29B
                    • SHA256 f6cadfd4e4c25ff3b8cffe54a2af24a757a349abbf4e1142ec4c9789347fe8b3
                    • MD5 SHA1 SHA512

                    msgid.dat

                    • Path C:\Users\Admin\AppData\Local\43eb28f2e8b3bfdaa1e708693f286457\msgid.dat
                    • Size 19B
                    • SHA256 7ca83b1254b854d41741e7c923fa389dc7dda149f070603b653b9fb5e7787aa1
                    • MD5 SHA1 SHA512

                    ac15ae1e49f4272e8d38b5fd5573ce35.exe.log

                    • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ac15ae1e49f4272e8d38b5fd5573ce35.exe.log
                    • Size 1KB
                    • SHA256 f1ed6ff1cd3df219061e32df1c75d6f48de6484cf50e5ea7d86cd8bcfcb93256
                    • MD5 SHA1 SHA512
                    • Path C:\Users\Admin\AppData\Local\Temp\@dr@[email protected]
                    • Size 323KB
                    • SHA256 073ba4f196478d20e734dc7faf7ff05ff3084dca07cde208bc8cdaee37be8b79
                    • MD5 SHA1 SHA512 SSDEEP
                    • Path C:\Users\Admin\AppData\Local\Temp\@dr@[email protected]
                    • Size 323KB
                    • SHA256 99b568e6c3a7a3e3d4b3e5a4c25cbb30017c3098fb1b74a73f797411cb5bd926
                    • MD5 SHA1 SHA512 SSDEEP
                    • Path C:\Users\Admin\AppData\Local\Temp\@dr@[email protected]
                    • Size 179KB
                    • SHA256 16526b52c0cbe5d1d332730de3180069270444c2a7944ba1a54d8652434cb7f8
                    • MD5 SHA1 SHA512 SSDEEP

                    CamSnap.exe

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

                    build.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\build.exe
                    • Size 202KB
                    • SHA256 41a261d6fc3ed8d39cded15cfceb4e6cdcf418cf41fda6607676b92f25fecd8d
                    • MD5 SHA1 SHA512 SSDEEP

                    build.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\build.exe
                    • Size 842KB
                    • SHA256 d6ba5a179fc788ffb5fb39e1baa195baf79d4dfa2216d62b21638c79dbd186ad
                    • MD5 SHA1 SHA512 SSDEEP

                    build.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\build.exe
                    • Size 971KB
                    • SHA256 5645ca43a80c0573c68cc617cfea74f515c59aadcaf52ca9aee07000258583f0
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/1080-1234-0x00000000747D0000-0x0000000074F80000-memory.dmp

                    memory/1080-1049-0x0000000005970000-0x0000000005978000-memory.dmp

                    memory/1080-1000-0x00000000050F0000-0x0000000005100000-memory.dmp

                    memory/1080-1313-0x0000000006BA0000-0x0000000006C52000-memory.dmp

                    memory/1080-982-0x00000000747D0000-0x0000000074F80000-memory.dmp

                    memory/1080-983-0x0000000005040000-0x00000000050A6000-memory.dmp

                    memory/1080-980-0x0000000000640000-0x00000000007D2000-memory.dmp

                    memory/1080-1237-0x00000000050F0000-0x0000000005100000-memory.dmp

                    memory/1080-1244-0x00000000050F0000-0x0000000005100000-memory.dmp

                    memory/1080-1240-0x00000000068B0000-0x000000000692A000-memory.dmp

                    memory/1080-1048-0x0000000005940000-0x0000000005966000-memory.dmp

                    memory/1080-1047-0x00000000058B0000-0x0000000005942000-memory.dmp

                    memory/1080-1051-0x00000000067A0000-0x00000000067A8000-memory.dmp

                    memory/1080-1050-0x0000000006790000-0x000000000679A000-memory.dmp

                    memory/1080-1315-0x0000000006AB0000-0x0000000006AD2000-memory.dmp

                    memory/1080-1316-0x0000000007FD0000-0x0000000008324000-memory.dmp

                    memory/1080-1052-0x00000000067C0000-0x00000000067DE000-memory.dmp

                    memory/1080-1328-0x00000000050F0000-0x0000000005100000-memory.dmp

                    memory/2124-33-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-39-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-69-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-938-0x00000000028C0000-0x00000000028C1000-memory.dmp

                    memory/2124-940-0x0000000006B80000-0x0000000006BCC000-memory.dmp

                    memory/2124-939-0x0000000008880000-0x0000000008D82000-memory.dmp

                    memory/2124-941-0x0000000009330000-0x00000000098D4000-memory.dmp

                    memory/2124-65-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-945-0x00000000747D0000-0x0000000074F80000-memory.dmp

                    memory/2124-63-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-61-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-59-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-57-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-55-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-53-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-51-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-49-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-47-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-45-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-43-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-41-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-67-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-37-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-35-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-31-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-29-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-27-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-25-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-23-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-21-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-19-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-17-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-0-0x00000000004F0000-0x000000000050A000-memory.dmp

                    memory/2124-15-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-13-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-11-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-9-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-7-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-6-0x0000000007E80000-0x00000000083E4000-memory.dmp

                    memory/2124-5-0x0000000007E80000-0x00000000083EA000-memory.dmp

                    memory/2124-4-0x0000000004EB0000-0x0000000004EB6000-memory.dmp

                    memory/2124-3-0x0000000002980000-0x0000000002986000-memory.dmp

                    memory/2124-2-0x0000000001000000-0x0000000001010000-memory.dmp

                    memory/2124-1-0x00000000747D0000-0x0000000074F80000-memory.dmp

                    memory/3324-1002-0x000002C0D1C50000-0x000002C0D1CA0000-memory.dmp

                    memory/3324-985-0x000002C0CFBC0000-0x000002C0CFBD0000-memory.dmp

                    memory/3324-1046-0x00007FFC9E5D0000-0x00007FFC9F091000-memory.dmp

                    memory/3324-977-0x000002C0B5250000-0x000002C0B53C8000-memory.dmp

                    memory/3324-981-0x00007FFC9E5D0000-0x00007FFC9F091000-memory.dmp

                    memory/4112-949-0x00000000055E0000-0x00000000055F0000-memory.dmp

                    memory/4112-984-0x00000000747D0000-0x0000000074F80000-memory.dmp

                    memory/4112-950-0x00000000057B0000-0x00000000057BA000-memory.dmp

                    memory/4112-948-0x0000000005600000-0x0000000005692000-memory.dmp

                    memory/4112-947-0x0000000000400000-0x0000000000C0A000-memory.dmp

                    memory/4112-946-0x00000000747D0000-0x0000000074F80000-memory.dmp

                    memory/4172-998-0x00000132EFFC0000-0x00000132EFFDE000-memory.dmp

                    memory/4172-999-0x00007FFC9E5D0000-0x00007FFC9F091000-memory.dmp

                    memory/4172-1001-0x00007FFC9E5D0000-0x00007FFC9F091000-memory.dmp