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Analysis

  • max time kernel
    151s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/12/2023, 10:23

General

  • Target

    d8a977071676464fe8d540d72fc99acf.exe

  • Size

    6.9MB

  • MD5

    d8a977071676464fe8d540d72fc99acf

  • SHA1

    0f6e3e5023469f58c190e1c8563b95de87ea65b4

  • SHA256

    b44304c86c1ed108574eab57a316b72d2602e473be5fcbff69fd4c8b067eb452

  • SHA512

    66ac4b77e393340efa0d6155a0da50c876c8af50d883cbc9261dd26a6894aa2db74993f62f8aa7ae49177332949025b4c6efe863d5035291c5d148ff002a8cee

  • SSDEEP

    196608:SHEJHZ/eTq1Gftof7bIj9yHyCkZZV5v/n1rS+slCCmFK:VpPGfiUTTBc+ymY

Malware Config

Signatures

  • Imminent RAT

    Remote-access trojan based on Imminent Monitor remote admin software.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d8a977071676464fe8d540d72fc99acf.exe
    "C:\Users\Admin\AppData\Local\Temp\d8a977071676464fe8d540d72fc99acf.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4768
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /TN REV_3576 /TR "'wscript.exe' C:\Users\Admin\AppData\Roaming\{SWR2-FK23-IDQR-PRXQ-JDF9-6YT9}\\Silent.vbs C:\Users\Admin\AppData\Roaming\{SWR2-FK23-IDQR-PRXQ-JDF9-6YT9}\\REV_2807.cmd" /sc ONLOGON /RL HIGHEST /F
      2⤵
      • Creates scheduled task(s)
      PID:3100
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
      2⤵
        PID:4840
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
        2⤵
          PID:2176
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
          2⤵
            PID:3668
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
            "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
            2⤵
              PID:3400
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
              "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
              2⤵
                PID:4312
              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                2⤵
                  PID:4588
                • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                  2⤵
                    PID:4152
                  • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                    2⤵
                      PID:636
                    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                      2⤵
                        PID:4180
                      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                        2⤵
                          PID:3124
                        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                          2⤵
                            PID:1412
                          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                            "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                            2⤵
                              PID:1940
                            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                              "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                              2⤵
                                PID:4756
                              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                2⤵
                                  PID:456
                                • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                  2⤵
                                    PID:1872
                                  • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                    2⤵
                                      PID:3744
                                    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                      2⤵
                                        PID:4760
                                      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                        2⤵
                                          PID:2256
                                        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                          2⤵
                                            PID:2608
                                          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                            "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                            2⤵
                                              PID:4932
                                            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                              "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                              2⤵
                                                PID:4396
                                              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                                "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                                2⤵
                                                  PID:2076
                                                • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                                  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                                  2⤵
                                                    PID:4500
                                                  • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                                    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                                    2⤵
                                                      PID:3316
                                                    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                                      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                                      2⤵
                                                        PID:2488
                                                      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                                        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                                        2⤵
                                                          PID:3292
                                                        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                                          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                                          2⤵
                                                            PID:3520
                                                          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                                            "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                                            2⤵
                                                              PID:4608
                                                            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                                              "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                                              2⤵
                                                                PID:1424
                                                              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                                                "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                                                2⤵
                                                                  PID:4916
                                                                • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                                                  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                                                  2⤵
                                                                    PID:3652
                                                                  • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                                                    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                                                    2⤵
                                                                    • Drops desktop.ini file(s)
                                                                    • Drops file in Windows directory
                                                                    • Suspicious behavior: GetForegroundWindowSpam
                                                                    • Suspicious use of AdjustPrivilegeToken
                                                                    • Suspicious use of SetWindowsHookEx
                                                                    PID:4532
                                                                  • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
                                                                    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
                                                                    2⤵
                                                                      PID:3724
                                                                  • C:\Windows\system32\wbem\WmiApSrv.exe
                                                                    C:\Windows\system32\wbem\WmiApSrv.exe
                                                                    1⤵
                                                                      PID:1048

                                                                    Network

                                                                    MITRE ATT&CK Enterprise v15

                                                                    Replay Monitor

                                                                    Loading Replay Monitor...

                                                                    Downloads

                                                                    • C:\patch\krn.dll

                                                                      Filesize

                                                                      625KB

                                                                      MD5

                                                                      eccf28d7e5ccec24119b88edd160f8f4

                                                                      SHA1

                                                                      98509587a3d37a20b56b50fd57f823a1691a034c

                                                                      SHA256

                                                                      820c83c0533cfce2928e29edeaf6c255bc19ac9718b25a5656d99ffac30a03d6

                                                                      SHA512

                                                                      c1c94bbb781625b2317f0a8178d3a10d891fb71bca8f82cd831c484e8ab125301b82a14fe2ff070dc99a496cc00234300fa5536401018c40d49d44ae89409670

                                                                    • C:\patch\ntd2.dll

                                                                      Filesize

                                                                      1.6MB

                                                                      MD5

                                                                      4f3387277ccbd6d1f21ac5c07fe4ca68

                                                                      SHA1

                                                                      e16506f662dc92023bf82def1d621497c8ab5890

                                                                      SHA256

                                                                      767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

                                                                      SHA512

                                                                      9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

                                                                    • memory/4532-53-0x000000002A680000-0x000000002A690000-memory.dmp

                                                                      Filesize

                                                                      64KB

                                                                    • memory/4532-52-0x000000002A680000-0x000000002A690000-memory.dmp

                                                                      Filesize

                                                                      64KB

                                                                    • memory/4532-51-0x0000000073970000-0x0000000073F21000-memory.dmp

                                                                      Filesize

                                                                      5.7MB

                                                                    • memory/4532-50-0x0000000073970000-0x0000000073F21000-memory.dmp

                                                                      Filesize

                                                                      5.7MB

                                                                    • memory/4532-42-0x000000002A680000-0x000000002A690000-memory.dmp

                                                                      Filesize

                                                                      64KB

                                                                    • memory/4532-38-0x000000002A680000-0x000000002A690000-memory.dmp

                                                                      Filesize

                                                                      64KB

                                                                    • memory/4532-34-0x0000000073970000-0x0000000073F21000-memory.dmp

                                                                      Filesize

                                                                      5.7MB

                                                                    • memory/4532-33-0x0000000073970000-0x0000000073F21000-memory.dmp

                                                                      Filesize

                                                                      5.7MB

                                                                    • memory/4532-32-0x0000000000400000-0x0000000001400000-memory.dmp

                                                                      Filesize

                                                                      16.0MB

                                                                    • memory/4768-8-0x0000000077B24000-0x0000000077B26000-memory.dmp

                                                                      Filesize

                                                                      8KB

                                                                    • memory/4768-37-0x0000000075AF0000-0x0000000075BE0000-memory.dmp

                                                                      Filesize

                                                                      960KB

                                                                    • memory/4768-16-0x0000000000400000-0x0000000000B06000-memory.dmp

                                                                      Filesize

                                                                      7.0MB

                                                                    • memory/4768-23-0x0000000000400000-0x0000000000B06000-memory.dmp

                                                                      Filesize

                                                                      7.0MB

                                                                    • memory/4768-13-0x0000000066000000-0x000000006618C000-memory.dmp

                                                                      Filesize

                                                                      1.5MB

                                                                    • memory/4768-14-0x0000000066000000-0x000000006618C000-memory.dmp

                                                                      Filesize

                                                                      1.5MB

                                                                    • memory/4768-10-0x0000000066000000-0x000000006618C000-memory.dmp

                                                                      Filesize

                                                                      1.5MB

                                                                    • memory/4768-0-0x0000000000400000-0x0000000000B06000-memory.dmp

                                                                      Filesize

                                                                      7.0MB

                                                                    • memory/4768-7-0x0000000075AF0000-0x0000000075BE0000-memory.dmp

                                                                      Filesize

                                                                      960KB

                                                                    • memory/4768-35-0x0000000075AF0000-0x0000000075BE0000-memory.dmp

                                                                      Filesize

                                                                      960KB

                                                                    • memory/4768-36-0x0000000075AF0000-0x0000000075BE0000-memory.dmp

                                                                      Filesize

                                                                      960KB

                                                                    • memory/4768-15-0x0000000066000000-0x000000006618C000-memory.dmp

                                                                      Filesize

                                                                      1.5MB

                                                                    • memory/4768-6-0x0000000075AF0000-0x0000000075BE0000-memory.dmp

                                                                      Filesize

                                                                      960KB

                                                                    • memory/4768-39-0x0000000000400000-0x0000000000B06000-memory.dmp

                                                                      Filesize

                                                                      7.0MB

                                                                    • memory/4768-40-0x0000000075AF0000-0x0000000075BE0000-memory.dmp

                                                                      Filesize

                                                                      960KB

                                                                    • memory/4768-41-0x0000000066000000-0x000000006618C000-memory.dmp

                                                                      Filesize

                                                                      1.5MB

                                                                    • memory/4768-5-0x0000000075AF0000-0x0000000075BE0000-memory.dmp

                                                                      Filesize

                                                                      960KB

                                                                    • memory/4768-4-0x0000000075AF0000-0x0000000075BE0000-memory.dmp

                                                                      Filesize

                                                                      960KB

                                                                    • memory/4768-3-0x0000000075AF0000-0x0000000075BE0000-memory.dmp

                                                                      Filesize

                                                                      960KB

                                                                    • memory/4768-2-0x0000000075AF0000-0x0000000075BE0000-memory.dmp

                                                                      Filesize

                                                                      960KB

                                                                    • memory/4768-1-0x0000000075AF0000-0x0000000075BE0000-memory.dmp

                                                                      Filesize

                                                                      960KB