Analysis

  • max time kernel
    131s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/02/2024, 21:31

General

  • Target
    a8953bbaa868dd7f66a3a7e73da80585.exe
  • Size 61KB
  • Sample240222-1c14wsff95
  • SHA256 cdb8b8b1134a657a1fef24640d2e11005cf81c370380cff8634b2a7da776cea4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect ZGRat V1 7 IoCs
  • Process spawned unexpected child process 15 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 16 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 5 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 15 IoCs

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

  • Modifies Control Panel 1 IoCs
  • Modifies registry class 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 31 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8953bbaa868dd7f66a3a7e73da80585.exe
    "C:\Users\Admin\AppData\Local\Temp\a8953bbaa868dd7f66a3a7e73da80585.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2280
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c MpCmdRun.exe -AddExclusion -FileName C:\Users\Admin\AppData\Local\Temp\\WindowsMD5Checker.exe
      2⤵
        PID:3368
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c MpCmdRun.exe -AddExclusion -FileName C:\Users\Admin\AppData\Local\Temp\\SandelloChecker.exe
        2⤵
          PID:4364
        • C:\Users\Admin\AppData\Local\Temp\WindowsMD5Checker.exe
          "C:\Users\Admin\AppData\Local\Temp\WindowsMD5Checker.exe"
          2⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:1788
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\MsWebSession\aISwmBA1tz2Li9c6LCYbI0c56v7tmGzpAA7ZdNSGvv0YyEqFbmxvfE9xX.vbe"
            3⤵
            • Checks computer location settings
            • Suspicious use of WriteProcessMemory
            PID:3184
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\MsWebSession\28GBsRQl2u5EqD0HGx7YGeYZyO2za9W9ftVvHiRGielbEoVm.bat" "
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2168
              • C:\MsWebSession\agentreviewIntoRefdhcp.exe
                "C:\MsWebSession/agentreviewIntoRefdhcp.exe"
                5⤵
                • Checks computer location settings
                • Executes dropped EXE
                • Drops file in Program Files directory
                • Drops file in Windows directory
                • Modifies registry class
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of WriteProcessMemory
                PID:4428
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\HCyNVv4gv8.bat"
                  6⤵
                  • Suspicious use of WriteProcessMemory
                  PID:4796
                  • C:\Windows\system32\chcp.com
                    chcp 65001
                    7⤵
                      PID:3132
                    • C:\Windows\system32\PING.EXE
                      ping -n 10 localhost
                      7⤵
                      • Runs ping.exe
                      PID:3252
                    • C:\Windows\CbsTemp\System.exe
                      "C:\Windows\CbsTemp\System.exe"
                      7⤵
                      • Executes dropped EXE
                      PID:1552
          • C:\Users\Admin\AppData\Local\Temp\SandelloChecker.exe
            "C:\Users\Admin\AppData\Local\Temp\SandelloChecker.exe"
            2⤵
            • Executes dropped EXE
            • Enumerates connected drives
            • Modifies Control Panel
            • Suspicious use of FindShellTrayWindow
            PID:3112
        • C:\Windows\system32\msiexec.exe
          C:\Windows\system32\msiexec.exe /V
          1⤵
          • Enumerates connected drives
          • Suspicious use of WriteProcessMemory
          PID:3820
          • C:\Windows\syswow64\MsiExec.exe
            C:\Windows\syswow64\MsiExec.exe -Embedding B74971BD1C669B2AE48A9376CA4E86DC C
            2⤵
            • Loads dropped DLL
            PID:1572
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Sidebar\Shared Gadgets\conhost.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:3276
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\Shared Gadgets\conhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:4288
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Sidebar\Shared Gadgets\conhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:3636
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "servicess" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\services.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2336
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\services.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:3668
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "servicess" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\services.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2480
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "servicess" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Photo Viewer\services.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:3804
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Photo Viewer\services.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:1684
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "servicess" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Windows Photo Viewer\services.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:3848
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 10 /tr "'C:\MsWebSession\RuntimeBroker.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:400
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\MsWebSession\RuntimeBroker.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2948
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 10 /tr "'C:\MsWebSession\RuntimeBroker.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2440
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 9 /tr "'C:\Windows\CbsTemp\System.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:904
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Windows\CbsTemp\System.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:4736
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 5 /tr "'C:\Windows\CbsTemp\System.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:4000

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              28GBsRQl2u5EqD0HGx7YGeYZyO2za9W9ftVvHiRGielbEoVm.bat

              • Path C:\MsWebSession\28GBsRQl2u5EqD0HGx7YGeYZyO2za9W9ftVvHiRGielbEoVm.bat
              • Size 95B
              • SHA256 102e9e1f76065e7c6207880bdcdba7cad4aebb61e2644ac80f76ed1a2ca92b1b
              • MD5 SHA1 SHA512

              aISwmBA1tz2Li9c6LCYbI0c56v7tmGzpAA7ZdNSGvv0YyEqFbmxvfE9xX.vbe

              • Path C:\MsWebSession\aISwmBA1tz2Li9c6LCYbI0c56v7tmGzpAA7ZdNSGvv0YyEqFbmxvfE9xX.vbe
              • Size 250B
              • SHA256 fee3cc05c5cd12982240bd1e83cf2362871ab9b656fd807928387ddb67e831f7
              • MD5 SHA1 SHA512

              agentreviewIntoRefdhcp.exe

              • Path C:\MsWebSession\agentreviewIntoRefdhcp.exe
              • Size 576KB
              • SHA256 5b6486e3c8b4f1795fbac3a17e2e42dfc4d413ac143d416e23a6d723d7209cf1
              • MD5 SHA1 SHA512 SSDEEP

              agentreviewIntoRefdhcp.exe

              • Path C:\MsWebSession\agentreviewIntoRefdhcp.exe
              • Size 1.7MB
              • SHA256 b1a40cf47142dfd12ffe7face6558059a2f732a0d662d5b7ca5857f265b7d0b2
              • MD5 SHA1 SHA512 SSDEEP

              services.exe

              • Path C:\Recovery\WindowsRE\services.exe
              • Size 3.6MB
              • SHA256 3ed028c17d0038c69998ad942feb78aff2f9f363bae2203250b0eba6ce0d26be
              • MD5 SHA1 SHA512 SSDEEP

              buttonimgs.xaml

              • Path C:\Users\Admin\AppData\Local\Temp\AI_EXTUI_BIN_3112\buttonimgs.xaml
              • Size 351B
              • SHA256 18573b641fd232ce9506dfbb4a15f7871b73bf3499f6a6b5734c2bc152852c94
              • MD5 SHA1 SHA512

              HCyNVv4gv8.bat

              • Path C:\Users\Admin\AppData\Local\Temp\HCyNVv4gv8.bat
              • Size 157B
              • SHA256 b2998479c535653dff9ecf1cd3237568dfa06498cb792036e115f1a6af9344ec
              • MD5 SHA1 SHA512

              MSI56F7.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\MSI56F7.tmp
              • Size 587KB
              • SHA256 42b8adafcb4e8496d9822a0c504f449e56456528a9251c153381d3f63d197e5b
              • MD5 SHA1 SHA512 SSDEEP

              MSI5E6C.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\MSI5E6C.tmp
              • Size 1.1MB
              • SHA256 3c21e1f3bb3ebeb5f0ff68658db8abd18b62f8b195288c4bf87936fc51f8ae9e
              • MD5 SHA1 SHA512 SSDEEP

              MSI6718.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\MSI6718.tmp
              • Size 709KB
              • SHA256 ad706739b04256b9215e80d2d030863a37f0d7fd0e4071d0a3a73d6704d8bd8f
              • MD5 SHA1 SHA512 SSDEEP

              MSI6AD4.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\MSI6AD4.tmp
              • Size 490KB
              • SHA256 d616c02fb7ba7346ead2a8a7d2e7fbdc7c1a546f9b627aa48cfef6515bc4bac1
              • MD5 SHA1 SHA512 SSDEEP

              MSI6B04.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\MSI6B04.tmp
              • Size 313KB
              • SHA256 5fbe5929859f72bab4009b643ef5b03c796b7e378ba14c2720cc7b4b60bd36e9
              • MD5 SHA1 SHA512 SSDEEP

              MSI6B04.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\MSI6B04.tmp
              • Size 218KB
              • SHA256 5440f3503bba1ac98e7a518df2366f613ea7806851dfa912392b1b8ed086055e
              • MD5 SHA1 SHA512 SSDEEP

              MSI6BA1.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\MSI6BA1.tmp
              • Size 40KB
              • SHA256 637d0908491c0f984f44e33449bb1813f9accb101f2ca3d34e0754ba920f8518
              • MD5 SHA1 SHA512 SSDEEP

              SandelloChecker.exe

              • Path C:\Users\Admin\AppData\Local\Temp\SandelloChecker.exe
              • Size 10KB
              • SHA256 e6d86042d9c64c6cdbce2de187ee84b3db2fbaf54ea15200585f9a871094af30
              • MD5 SHA1 SHA512 SSDEEP

              SandelloChecker.exe

              • Path C:\Users\Admin\AppData\Local\Temp\SandelloChecker.exe
              • Size 1.8MB
              • SHA256 2062047006e1f2e3f14a14d7f7cb119389494fbce7fe28ff57abdab4782c93dd
              • MD5 SHA1 SHA512 SSDEEP

              SandelloChecker.exe

              • Path C:\Users\Admin\AppData\Local\Temp\SandelloChecker.exe
              • Size 1.3MB
              • SHA256 9904651c57d37cf2aafbb4effb1ae9dddd7117a076ece229ca0d242fa80a45c3
              • MD5 SHA1 SHA512 SSDEEP

              WindowsMD5Checker.exe

              • Path C:\Users\Admin\AppData\Local\Temp\WindowsMD5Checker.exe
              • Size 360KB
              • SHA256 20779910fbe37d1deabafdea29e909ee2f982bce4aed6d5c41dea70b84d578f3
              • MD5 SHA1 SHA512 SSDEEP

              WindowsMD5Checker.exe

              • Path C:\Users\Admin\AppData\Local\Temp\WindowsMD5Checker.exe
              • Size 2.5MB
              • SHA256 2754cf14b4d82e1282e1dba09eeb0ccd6a4bc0777c6c35863029219ca096b1fb
              • MD5 SHA1 SHA512 SSDEEP

              WindowsMD5Checker.exe

              • Path C:\Users\Admin\AppData\Local\Temp\WindowsMD5Checker.exe
              • Size 2.6MB
              • SHA256 4acbc196c12705e6441f507e32a401562f89ff969725f4edc99f632c1f1579b6
              • MD5 SHA1 SHA512 SSDEEP

              SandeLLoCHECKER_Installer.msi

              • Path C:\Users\Admin\AppData\Roaming\SandeLLo CHECKER\install\51B5780\SandeLLoCHECKER_Installer.msi
              • Size 64KB
              • SHA256 2d30d83d180fcd25e4071f72fd5de313f09644679365c0ede1dd711f2e6c06b5
              • MD5 SHA1 SHA512 SSDEEP

              memory/2280-0-0x0000000000850000-0x000000000085F000-memory.dmp

              memory/4428-189-0x000000001BEF0000-0x000000001BF00000-memory.dmp

              memory/4428-198-0x00007FF907D10000-0x00007FF907D11000-memory.dmp

              memory/4428-163-0x000000001BEF0000-0x000000001BF00000-memory.dmp

              memory/4428-164-0x000000001BEF0000-0x000000001BF00000-memory.dmp

              memory/4428-167-0x000000001BE70000-0x000000001BE96000-memory.dmp

              memory/4428-168-0x00007FF907D90000-0x00007FF907D91000-memory.dmp

              memory/4428-165-0x00007FF907DA0000-0x00007FF907E5E000-memory.dmp

              memory/4428-169-0x00007FF907DA0000-0x00007FF907E5E000-memory.dmp

              memory/4428-171-0x0000000003360000-0x000000000336E000-memory.dmp

              memory/4428-172-0x00007FF907D80000-0x00007FF907D81000-memory.dmp

              memory/4428-174-0x000000001BEA0000-0x000000001BEBC000-memory.dmp

              memory/4428-175-0x00007FF907D70000-0x00007FF907D71000-memory.dmp

              memory/4428-176-0x000000001D200000-0x000000001D250000-memory.dmp

              memory/4428-178-0x0000000003370000-0x0000000003380000-memory.dmp

              memory/4428-179-0x00007FF8EAA50000-0x00007FF8EB511000-memory.dmp

              memory/4428-180-0x00007FF907D60000-0x00007FF907D61000-memory.dmp

              memory/4428-183-0x000000001D1B0000-0x000000001D1C8000-memory.dmp

              memory/4428-181-0x00007FF907D50000-0x00007FF907D51000-memory.dmp

              memory/4428-186-0x0000000003380000-0x0000000003390000-memory.dmp

              memory/4428-184-0x00007FF907D40000-0x00007FF907D41000-memory.dmp

              memory/4428-161-0x000000001BEF0000-0x000000001BF00000-memory.dmp

              memory/4428-188-0x000000001BEC0000-0x000000001BED0000-memory.dmp

              memory/4428-190-0x00007FF907D30000-0x00007FF907D31000-memory.dmp

              memory/4428-193-0x000000001BED0000-0x000000001BEDE000-memory.dmp

              memory/4428-192-0x00007FF907D20000-0x00007FF907D21000-memory.dmp

              memory/4428-196-0x000000001D250000-0x000000001D262000-memory.dmp

              memory/4428-197-0x00007FF907DA0000-0x00007FF907E5E000-memory.dmp

              memory/4428-194-0x000000001BEF0000-0x000000001BF00000-memory.dmp

              memory/4428-201-0x000000001BEF0000-0x000000001BF00000-memory.dmp

              memory/4428-200-0x000000001BEE0000-0x000000001BEEC000-memory.dmp

              memory/4428-202-0x00007FF907D00000-0x00007FF907D01000-memory.dmp

              memory/4428-162-0x00000000019E0000-0x00000000019E1000-memory.dmp

              memory/4428-204-0x000000001D1D0000-0x000000001D1E0000-memory.dmp

              memory/4428-205-0x00007FF907DA0000-0x00007FF907E5E000-memory.dmp

              memory/4428-206-0x00007FF907CF0000-0x00007FF907CF1000-memory.dmp

              memory/4428-209-0x000000001D270000-0x000000001D286000-memory.dmp

              memory/4428-207-0x00007FF907CE0000-0x00007FF907CE1000-memory.dmp

              memory/4428-211-0x000000001D290000-0x000000001D2A2000-memory.dmp

              memory/4428-212-0x00007FF907CD0000-0x00007FF907CD1000-memory.dmp

              memory/4428-213-0x000000001D7E0000-0x000000001DD08000-memory.dmp

              memory/4428-216-0x000000001D1E0000-0x000000001D1EE000-memory.dmp

              memory/4428-214-0x00007FF907CC0000-0x00007FF907CC1000-memory.dmp

              memory/4428-218-0x000000001D1F0000-0x000000001D200000-memory.dmp

              memory/4428-219-0x00007FF907CB0000-0x00007FF907CB1000-memory.dmp

              memory/4428-222-0x00007FF907CA0000-0x00007FF907CA1000-memory.dmp

              memory/4428-221-0x000000001D2B0000-0x000000001D2C0000-memory.dmp

              memory/4428-224-0x000000001D320000-0x000000001D37A000-memory.dmp

              memory/4428-225-0x00007FF907C90000-0x00007FF907C91000-memory.dmp

              memory/4428-228-0x000000001D2C0000-0x000000001D2CE000-memory.dmp

              memory/4428-226-0x00007FF907C80000-0x00007FF907C81000-memory.dmp

              memory/4428-231-0x000000001D2D0000-0x000000001D2E0000-memory.dmp

              memory/4428-229-0x00007FF907C70000-0x00007FF907C71000-memory.dmp

              memory/4428-234-0x000000001D2E0000-0x000000001D2EE000-memory.dmp

              memory/4428-232-0x00007FF907C60000-0x00007FF907C61000-memory.dmp

              memory/4428-236-0x000000001D580000-0x000000001D598000-memory.dmp

              memory/4428-237-0x00007FF907C50000-0x00007FF907C51000-memory.dmp

              memory/4428-238-0x00007FF907C40000-0x00007FF907C41000-memory.dmp

              memory/4428-240-0x000000001D2F0000-0x000000001D2FC000-memory.dmp

              memory/4428-243-0x000000001D5F0000-0x000000001D63E000-memory.dmp

              memory/4428-241-0x00007FF907C30000-0x00007FF907C31000-memory.dmp

              memory/4428-160-0x00007FF8EAA50000-0x00007FF8EB511000-memory.dmp

              memory/4428-259-0x00007FF907DA0000-0x00007FF907E5E000-memory.dmp

              memory/4428-159-0x0000000000EB0000-0x0000000001248000-memory.dmp