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Analysis

  • max time kernel
    140s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    03/06/2022, 00:24

General

  • Target

    f3b2c0e21faa2d771b315cfda97a4c32.exe

  • Size

    2.5MB

  • MD5

    f3b2c0e21faa2d771b315cfda97a4c32

  • SHA1

    806b920c7c0299ffa9fbe4c94825d0313381927f

  • SHA256

    3f0841eff18ab98e2614071d89619c1fb84e653cb1c524384801bdf00d7e9d42

  • SHA512

    6c0503c9523027ebc2c4363e2d3aef39c513316aaf69bdf5f660112a1f3f1371ca20d5f8f134485ee573076084592ace1bc5e1056c8d645e010bb6b2267b19b2

Score
10/10

Malware Config

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe
    "C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1788
    • C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe
      "C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe"
      2⤵
        PID:3276
      • C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe
        "C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe"
        2⤵
          PID:3840
        • C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe
          "C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe"
          2⤵
            PID:3224
          • C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe
            "C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe"
            2⤵
              PID:2060
            • C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe
              "C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe"
              2⤵
                PID:4772
              • C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe
                "C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe"
                2⤵
                  PID:4288
                • C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe
                  "C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe"
                  2⤵
                    PID:3684
                  • C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe
                    "C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe"
                    2⤵
                      PID:3628
                    • C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe
                      "C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe"
                      2⤵
                        PID:820
                      • C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe
                        "C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe"
                        2⤵
                          PID:536
                        • C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe
                          "C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe"
                          2⤵
                            PID:1676
                          • C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe
                            "C:\Users\Admin\AppData\Local\Temp\f3b2c0e21faa2d771b315cfda97a4c32.exe"
                            2⤵
                            • Suspicious use of AdjustPrivilegeToken
                            PID:1724

                        Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • memory/1724-168-0x00000000031C0000-0x00000000031C4000-memory.dmp

                          Filesize

                          16KB

                        • memory/1724-167-0x00000000001C0000-0x00000000005F1000-memory.dmp

                          Filesize

                          4.2MB

                        • memory/1724-166-0x00000000032C0000-0x0000000003429000-memory.dmp

                          Filesize

                          1.4MB

                        • memory/1724-162-0x0000000001010000-0x0000000001014000-memory.dmp

                          Filesize

                          16KB

                        • memory/1724-163-0x00000000031C0000-0x00000000031C4000-memory.dmp

                          Filesize

                          16KB

                        • memory/1724-164-0x0000000003240000-0x000000000324F000-memory.dmp

                          Filesize

                          60KB

                        • memory/1724-161-0x00000000012C0000-0x00000000015CD000-memory.dmp

                          Filesize

                          3.1MB

                        • memory/1724-157-0x00000000001C0000-0x00000000005F1000-memory.dmp

                          Filesize

                          4.2MB

                        • memory/1788-139-0x0000000000820000-0x0000000000824000-memory.dmp

                          Filesize

                          16KB

                        • memory/1788-138-0x0000000000DF0000-0x00000000010FD000-memory.dmp

                          Filesize

                          3.1MB

                        • memory/1788-131-0x0000000000DF0000-0x00000000010FD000-memory.dmp

                          Filesize

                          3.1MB

                        • memory/1788-132-0x0000000000820000-0x0000000000824000-memory.dmp

                          Filesize

                          16KB

                        • memory/1788-133-0x0000000004DB0000-0x0000000004DB4000-memory.dmp

                          Filesize

                          16KB

                        • memory/1788-134-0x0000000002CE0000-0x0000000002D08000-memory.dmp

                          Filesize

                          160KB

                        • memory/1788-148-0x000000000FDC0000-0x00000000100BA000-memory.dmp

                          Filesize

                          3.0MB

                        • memory/1788-135-0x0000000002E30000-0x0000000002F99000-memory.dmp

                          Filesize

                          1.4MB

                        • memory/1788-136-0x0000000002E30000-0x0000000002F99000-memory.dmp

                          Filesize

                          1.4MB

                        • memory/1788-160-0x000000000FDC0000-0x000000000FDFC000-memory.dmp

                          Filesize

                          240KB

                        • memory/1788-159-0x0000000002E30000-0x0000000002F99000-memory.dmp

                          Filesize

                          1.4MB

                        • memory/1788-142-0x000000000FDC0000-0x00000000100BA000-memory.dmp

                          Filesize

                          3.0MB

                        • memory/1788-141-0x000000000FDC0000-0x00000000100BA000-memory.dmp

                          Filesize

                          3.0MB

                        • memory/1788-140-0x0000000004DB0000-0x0000000004DB4000-memory.dmp

                          Filesize

                          16KB

                        • memory/1788-130-0x00000000001C0000-0x00000000005F1000-memory.dmp

                          Filesize

                          4.2MB

                        • memory/1788-137-0x00000000001C0000-0x00000000005F1000-memory.dmp

                          Filesize

                          4.2MB

                        • memory/1788-158-0x00000000001C0000-0x00000000005F1000-memory.dmp

                          Filesize

                          4.2MB

                        • memory/3276-144-0x00000000001C0000-0x00000000005F1000-memory.dmp

                          Filesize

                          4.2MB