Analysis

  • max time kernel
    118s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    13-01-2025 04:30

General

  • Target

    a3f9325c5abd9c0338f6e271b1cbf0536dcbeb551ec64b98c07e77bea0b19254N.exe

  • Size

    3.6MB

  • MD5

    5a42c717fe30a7f6ab4a9b8e20010c70

  • SHA1

    be50c596abbdbbc67866bd490cec2f804a060a74

  • SHA256

    a3f9325c5abd9c0338f6e271b1cbf0536dcbeb551ec64b98c07e77bea0b19254

  • SHA512

    46f32f5fd768abd8193ba02d44650d50c03f3bc240342cf5b0a4f79619e256935bd2eee4c24cded7e2776c2a4c42e01e50f5f6cb2c09df137b7f4b99250c2036

  • SSDEEP

    98304:SwRElZ33Li0XUU3FMi9+Q4m1PQKq39swQHx:ufnGcUU0xm1Psmlx

Malware Config

Signatures

  • SectopRAT

    SectopRAT is a remote access trojan first seen in November 2019.

  • SectopRAT payload 2 IoCs
  • Sectoprat family
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Enumerates processes with tasklist 1 TTPs 6 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 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: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3f9325c5abd9c0338f6e271b1cbf0536dcbeb551ec64b98c07e77bea0b19254N.exe
    "C:\Users\Admin\AppData\Local\Temp\a3f9325c5abd9c0338f6e271b1cbf0536dcbeb551ec64b98c07e77bea0b19254N.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2772
    • C:\Users\Admin\AppData\Local\Temp\is-B86E8.tmp\a3f9325c5abd9c0338f6e271b1cbf0536dcbeb551ec64b98c07e77bea0b19254N.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-B86E8.tmp\a3f9325c5abd9c0338f6e271b1cbf0536dcbeb551ec64b98c07e77bea0b19254N.tmp" /SL5="$4014E,1931507,845824,C:\Users\Admin\AppData\Local\Temp\a3f9325c5abd9c0338f6e271b1cbf0536dcbeb551ec64b98c07e77bea0b19254N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2872
      • C:\Users\Admin\AppData\Local\Temp\a3f9325c5abd9c0338f6e271b1cbf0536dcbeb551ec64b98c07e77bea0b19254N.exe
        "C:\Users\Admin\AppData\Local\Temp\a3f9325c5abd9c0338f6e271b1cbf0536dcbeb551ec64b98c07e77bea0b19254N.exe" /VERYSILENT
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2764
        • C:\Users\Admin\AppData\Local\Temp\is-F4T3H.tmp\a3f9325c5abd9c0338f6e271b1cbf0536dcbeb551ec64b98c07e77bea0b19254N.tmp
          "C:\Users\Admin\AppData\Local\Temp\is-F4T3H.tmp\a3f9325c5abd9c0338f6e271b1cbf0536dcbeb551ec64b98c07e77bea0b19254N.tmp" /SL5="$5014E,1931507,845824,C:\Users\Admin\AppData\Local\Temp\a3f9325c5abd9c0338f6e271b1cbf0536dcbeb551ec64b98c07e77bea0b19254N.exe" /VERYSILENT
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:2200
          • C:\Windows\system32\cmd.exe
            "cmd.exe" /C tasklist /FI "IMAGENAME eq wrsa.exe" /FO CSV /NH | find /I "wrsa.exe"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2256
            • C:\Windows\system32\tasklist.exe
              tasklist /FI "IMAGENAME eq wrsa.exe" /FO CSV /NH
              6⤵
              • Enumerates processes with tasklist
              • Suspicious use of AdjustPrivilegeToken
              PID:2588
            • C:\Windows\system32\find.exe
              find /I "wrsa.exe"
              6⤵
                PID:2232
            • C:\Windows\system32\cmd.exe
              "cmd.exe" /C tasklist /FI "IMAGENAME eq opssvc.exe" /FO CSV /NH | find /I "opssvc.exe"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:2608
              • C:\Windows\system32\tasklist.exe
                tasklist /FI "IMAGENAME eq opssvc.exe" /FO CSV /NH
                6⤵
                • Enumerates processes with tasklist
                • Suspicious use of AdjustPrivilegeToken
                PID:2120
              • C:\Windows\system32\find.exe
                find /I "opssvc.exe"
                6⤵
                  PID:2128
              • C:\Windows\system32\cmd.exe
                "cmd.exe" /C tasklist /FI "IMAGENAME eq avastui.exe" /FO CSV /NH | find /I "avastui.exe"
                5⤵
                • Suspicious use of WriteProcessMemory
                PID:2336
                • C:\Windows\system32\tasklist.exe
                  tasklist /FI "IMAGENAME eq avastui.exe" /FO CSV /NH
                  6⤵
                  • Enumerates processes with tasklist
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2436
                • C:\Windows\system32\find.exe
                  find /I "avastui.exe"
                  6⤵
                    PID:1076
                • C:\Windows\system32\cmd.exe
                  "cmd.exe" /C tasklist /FI "IMAGENAME eq avgui.exe" /FO CSV /NH | find /I "avgui.exe"
                  5⤵
                  • Suspicious use of WriteProcessMemory
                  PID:3000
                  • C:\Windows\system32\tasklist.exe
                    tasklist /FI "IMAGENAME eq avgui.exe" /FO CSV /NH
                    6⤵
                    • Enumerates processes with tasklist
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2096
                  • C:\Windows\system32\find.exe
                    find /I "avgui.exe"
                    6⤵
                      PID:592
                  • C:\Windows\system32\cmd.exe
                    "cmd.exe" /C tasklist /FI "IMAGENAME eq nswscsvc.exe" /FO CSV /NH | find /I "nswscsvc.exe"
                    5⤵
                    • Suspicious use of WriteProcessMemory
                    PID:2980
                    • C:\Windows\system32\tasklist.exe
                      tasklist /FI "IMAGENAME eq nswscsvc.exe" /FO CSV /NH
                      6⤵
                      • Enumerates processes with tasklist
                      • Suspicious use of AdjustPrivilegeToken
                      PID:1140
                    • C:\Windows\system32\find.exe
                      find /I "nswscsvc.exe"
                      6⤵
                        PID:2704
                    • C:\Windows\system32\cmd.exe
                      "cmd.exe" /C tasklist /FI "IMAGENAME eq sophoshealth.exe" /FO CSV /NH | find /I "sophoshealth.exe"
                      5⤵
                        PID:2880
                        • C:\Windows\system32\tasklist.exe
                          tasklist /FI "IMAGENAME eq sophoshealth.exe" /FO CSV /NH
                          6⤵
                          • Enumerates processes with tasklist
                          • Suspicious use of AdjustPrivilegeToken
                          PID:2984
                        • C:\Windows\system32\find.exe
                          find /I "sophoshealth.exe"
                          6⤵
                            PID:2976
                        • C:\Users\Admin\AppData\Roaming\Partition\electronics.exe
                          "C:\Users\Admin\AppData\Roaming\Partition\\electronics.exe" "C:\Users\Admin\AppData\Roaming\Partition\\expulsionist.eml"
                          5⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:1916
                          • C:\Windows\SysWOW64\cmd.exe
                            "C:\Windows\System32\cmd.exe" /c ping -n 5 127.0.0.1 >nul && electronics.exe C:\ProgramData\\53KmAxc0.a3x && del C:\ProgramData\\53KmAxc0.a3x
                            6⤵
                            • System Location Discovery: System Language Discovery
                            • System Network Configuration Discovery: Internet Connection Discovery
                            PID:2160
                            • C:\Windows\SysWOW64\PING.EXE
                              ping -n 5 127.0.0.1
                              7⤵
                              • System Location Discovery: System Language Discovery
                              • System Network Configuration Discovery: Internet Connection Discovery
                              • Runs ping.exe
                              PID:2164
                            • C:\Users\Admin\AppData\Roaming\Partition\electronics.exe
                              electronics.exe C:\ProgramData\\53KmAxc0.a3x
                              7⤵
                              • Executes dropped EXE
                              • Adds Run key to start application
                              • Suspicious use of SetThreadContext
                              • System Location Discovery: System Language Discovery
                              • Checks processor information in registry
                              PID:2520
                              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                                C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                                8⤵
                                • System Location Discovery: System Language Discovery
                                • Suspicious use of AdjustPrivilegeToken
                                PID:2500

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Roaming\Partition\expulsionist.eml

                  Filesize

                  48KB

                  MD5

                  105b3c4033a1a5b36b0d897d64d2dbc5

                  SHA1

                  02df0cba5c7e52e160747023b523ba511a13eca4

                  SHA256

                  6871177291918fadb13bb2092c134ec849ca0fbb79289959ddfcc0857872936d

                  SHA512

                  f0f915618efb70effcbe20897a67001766a74ceacee8b53234d98051c16b7b54a72e78ed1c06b4924725049301f1189f9923b919769dfa7ce48295580751748f

                • C:\Users\Admin\AppData\Roaming\Partition\expulsionist.rtf

                  Filesize

                  940KB

                  MD5

                  0577137e38bb6ac64d302158d97e3309

                  SHA1

                  cd1d921efc0d6749f1c613e6b3f58b5c1cb6d229

                  SHA256

                  70bb7249d401b402c5e2a095ffc8832b36a3318f66218189ae49d072daee7208

                  SHA512

                  7eda8e96d0c10eb0c21a29522d2a9d2012fc78788d5a209e9fb9ce10dc9125da6e9678e12675310c33a5dedb7973e5f04fb2e38634f51e57d72ea59fc0a8197b

                • \Users\Admin\AppData\Local\Temp\is-B86E8.tmp\a3f9325c5abd9c0338f6e271b1cbf0536dcbeb551ec64b98c07e77bea0b19254N.tmp

                  Filesize

                  3.2MB

                  MD5

                  60aeeeda4d416077aaa5c9b21e336c5a

                  SHA1

                  2d5e9ecec78620e6664d4828b7ee3576a660a306

                  SHA256

                  c4df89c1ee343740c7a54a9afbb28c47f3cef86ad53c505553c680bc8c58b569

                  SHA512

                  46c8d197635cbbdd7089a27579b6dadda1c2598aa70aad9966cfa92a57d07dc2ce91dd585270ac6d2dfac9417e2d98f486ca409cec226731784e17a4115e3c59

                • \Users\Admin\AppData\Roaming\Partition\electronics.exe

                  Filesize

                  921KB

                  MD5

                  3f58a517f1f4796225137e7659ad2adb

                  SHA1

                  e264ba0e9987b0ad0812e5dd4dd3075531cfe269

                  SHA256

                  1da298cab4d537b0b7b5dabf09bff6a212b9e45731e0cc772f99026005fb9e48

                  SHA512

                  acf740aafce390d06c6a76c84e7ae7c0f721731973aadbe3e57f2eb63241a01303cc6bf11a3f9a88f8be0237998b5772bdaf569137d63ba3d0f877e7d27fc634

                • memory/2200-47-0x0000000000B20000-0x0000000000E63000-memory.dmp

                  Filesize

                  3.3MB

                • memory/2200-37-0x0000000000B20000-0x0000000000E63000-memory.dmp

                  Filesize

                  3.3MB

                • memory/2500-60-0x0000000000400000-0x00000000004C6000-memory.dmp

                  Filesize

                  792KB

                • memory/2500-62-0x0000000000400000-0x00000000004C6000-memory.dmp

                  Filesize

                  792KB

                • memory/2500-61-0x0000000000400000-0x00000000004C6000-memory.dmp

                  Filesize

                  792KB

                • memory/2764-14-0x0000000000820000-0x00000000008FC000-memory.dmp

                  Filesize

                  880KB

                • memory/2764-36-0x0000000000820000-0x00000000008FC000-memory.dmp

                  Filesize

                  880KB

                • memory/2764-49-0x0000000000820000-0x00000000008FC000-memory.dmp

                  Filesize

                  880KB

                • memory/2772-13-0x0000000000820000-0x00000000008FC000-memory.dmp

                  Filesize

                  880KB

                • memory/2772-0-0x0000000000820000-0x00000000008FC000-memory.dmp

                  Filesize

                  880KB

                • memory/2772-2-0x0000000000821000-0x00000000008C9000-memory.dmp

                  Filesize

                  672KB

                • memory/2872-11-0x0000000000A20000-0x0000000000D63000-memory.dmp

                  Filesize

                  3.3MB

                • memory/2872-8-0x0000000000100000-0x0000000000101000-memory.dmp

                  Filesize

                  4KB