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Overview

overview

10

Static

static

10

Server.exe

windows7-x64

8

Server.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/09/2024, 19:42

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General

  • Target

    Server.exe

  • Size

    93KB

  • MD5

    fccac9bf6c83173de191751a3cc75688

  • SHA1

    5a5f6db3aa85d921707822af7be0f749c00699f6

  • SHA256

    c33fd04b22feb761253055d2674a112d6b527aa3f78e585d1f2d26df3e8512e7

  • SHA512

    db453c4df92e6c274a6e558ed2a95ab4b22d17887dcebaf4760f9e7f2e0d6fc7e2cbe05f4e52690a54414bb466e39f85550535bede6e0979fe7e3499f19c487b

  • SSDEEP

    1536:xkAY3SUFKnOr70txlZbgoGXejEwzGi1dDQDJgS:xkt7KnOr70txIXni1d+G

Score
8/10
discoveryevasionpersistenceprivilege_escalation

Malware Config

Signatures

  • Disables Task Manager via registry modification
    evasion
  • Modifies Windows Firewall 2 TTPs 19 IoCs
    evasion
  • Checks computer location settings 2 TTPs 12 IoCs

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

  • Deletes itself 1 IoCs
  • Drops startup file 14 IoCs
  • Executes dropped EXE 12 IoCs
  • Drops autorun.inf file 1 TTPs 4 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 7 IoCs
  • Drops file in Program Files directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 57 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 32 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    "C:\Users\Admin\AppData\Local\Temp\Server.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3084
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:1340
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe"
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:4120
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:4816
    • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:804
      • C:\Users\Admin\AppData\Local\Temp\server.exe
        "C:\Users\Admin\AppData\Local\Temp\server.exe"
        3⤵
        • Checks computer location settings
        • Drops startup file
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2452
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:2536
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:2356
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:740
        • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1524
          • C:\Users\Admin\AppData\Local\Temp\server.exe
            "C:\Users\Admin\AppData\Local\Temp\server.exe"
            5⤵
            • Checks computer location settings
            • Drops startup file
            • Executes dropped EXE
            • Drops file in System32 directory
            • Drops file in Program Files directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:4768
            • C:\Windows\SysWOW64\netsh.exe
              netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
              6⤵
              • Modifies Windows Firewall
              • Event Triggered Execution: Netsh Helper DLL
              • System Location Discovery: System Language Discovery
              PID:3216
            • C:\Windows\SysWOW64\netsh.exe
              netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
              6⤵
              • Modifies Windows Firewall
              • Event Triggered Execution: Netsh Helper DLL
              • System Location Discovery: System Language Discovery
              PID:208
            • C:\Windows\SysWOW64\netsh.exe
              netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
              6⤵
              • Modifies Windows Firewall
              • Event Triggered Execution: Netsh Helper DLL
              • System Location Discovery: System Language Discovery
              PID:4956
            • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
              "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
              6⤵
              • Checks computer location settings
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1020
              • C:\Users\Admin\AppData\Local\Temp\server.exe
                "C:\Users\Admin\AppData\Local\Temp\server.exe"
                7⤵
                • Checks computer location settings
                • Drops startup file
                • Executes dropped EXE
                • Drops file in System32 directory
                • Drops file in Program Files directory
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: GetForegroundWindowSpam
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:1264
                • C:\Windows\SysWOW64\netsh.exe
                  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
                  8⤵
                  • Modifies Windows Firewall
                  • Event Triggered Execution: Netsh Helper DLL
                  • System Location Discovery: System Language Discovery
                  PID:4776
                • C:\Windows\SysWOW64\netsh.exe
                  netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
                  8⤵
                  • Modifies Windows Firewall
                  • Event Triggered Execution: Netsh Helper DLL
                  • System Location Discovery: System Language Discovery
                  PID:2968
                • C:\Windows\SysWOW64\netsh.exe
                  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
                  8⤵
                  • Modifies Windows Firewall
                  • Event Triggered Execution: Netsh Helper DLL
                  • System Location Discovery: System Language Discovery
                  PID:2384
                • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
                  "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
                  8⤵
                  • Checks computer location settings
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:3804
                  • C:\Users\Admin\AppData\Local\Temp\server.exe
                    "C:\Users\Admin\AppData\Local\Temp\server.exe"
                    9⤵
                    • Checks computer location settings
                    • Drops startup file
                    • Executes dropped EXE
                    • Drops file in System32 directory
                    • Drops file in Program Files directory
                    • System Location Discovery: System Language Discovery
                    • Suspicious behavior: GetForegroundWindowSpam
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    PID:1464
                    • C:\Windows\SysWOW64\netsh.exe
                      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
                      10⤵
                      • Modifies Windows Firewall
                      • Event Triggered Execution: Netsh Helper DLL
                      • System Location Discovery: System Language Discovery
                      PID:2656
                    • C:\Windows\SysWOW64\netsh.exe
                      netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
                      10⤵
                      • Modifies Windows Firewall
                      • Event Triggered Execution: Netsh Helper DLL
                      • System Location Discovery: System Language Discovery
                      PID:3000
                    • C:\Windows\SysWOW64\netsh.exe
                      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
                      10⤵
                      • Modifies Windows Firewall
                      • Event Triggered Execution: Netsh Helper DLL
                      • System Location Discovery: System Language Discovery
                      PID:3188
                    • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
                      "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
                      10⤵
                      • Checks computer location settings
                      • Executes dropped EXE
                      • System Location Discovery: System Language Discovery
                      PID:3688
                      • C:\Users\Admin\AppData\Local\Temp\server.exe
                        "C:\Users\Admin\AppData\Local\Temp\server.exe"
                        11⤵
                        • Checks computer location settings
                        • Drops startup file
                        • Executes dropped EXE
                        • Drops file in System32 directory
                        • Drops file in Program Files directory
                        • System Location Discovery: System Language Discovery
                        • Suspicious behavior: GetForegroundWindowSpam
                        • Suspicious use of AdjustPrivilegeToken
                        PID:1876
                        • C:\Windows\SysWOW64\netsh.exe
                          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
                          12⤵
                          • Modifies Windows Firewall
                          • Event Triggered Execution: Netsh Helper DLL
                          • System Location Discovery: System Language Discovery
                          PID:2040
                        • C:\Windows\SysWOW64\netsh.exe
                          netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
                          12⤵
                          • Modifies Windows Firewall
                          • Event Triggered Execution: Netsh Helper DLL
                          • System Location Discovery: System Language Discovery
                          PID:4884
                        • C:\Windows\SysWOW64\netsh.exe
                          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
                          12⤵
                          • Modifies Windows Firewall
                          • Event Triggered Execution: Netsh Helper DLL
                          • System Location Discovery: System Language Discovery
                          PID:816
                        • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
                          "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
                          12⤵
                          • Checks computer location settings
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:2860
                          • C:\Users\Admin\AppData\Local\Temp\server.exe
                            "C:\Users\Admin\AppData\Local\Temp\server.exe"
                            13⤵
                            • Executes dropped EXE
                            • System Location Discovery: System Language Discovery
                            PID:4960
                            • C:\Windows\SysWOW64\netsh.exe
                              netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
                              14⤵
                              • Modifies Windows Firewall
                              • Event Triggered Execution: Netsh Helper DLL
                              • System Location Discovery: System Language Discovery
                              PID:2280

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\Umbrella.flv.exe
    Filesize

    93KB

    MD5

    fccac9bf6c83173de191751a3cc75688

    SHA1

    5a5f6db3aa85d921707822af7be0f749c00699f6

    SHA256

    c33fd04b22feb761253055d2674a112d6b527aa3f78e585d1f2d26df3e8512e7

    SHA512

    db453c4df92e6c274a6e558ed2a95ab4b22d17887dcebaf4760f9e7f2e0d6fc7e2cbe05f4e52690a54414bb466e39f85550535bede6e0979fe7e3499f19c487b

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  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\server.exe.log
    Filesize

    496B

    MD5

    33fe8dd9e1ea825e0c04039a76472d4c

    SHA1

    1ed473d07c3749db03329bbb9fa071874dcd1472

    SHA256

    57d81e46f85960026bcfde79aa5d6329fbefc9b0c98f9d66d4359b60f82c66ba

    SHA512

    103273d20d5afa5da16592bc222496d828fdedbb34aa2b914464425ed8103ff3833a734e100cf7c6cbbb42c72c10e82e99ccdcf4f8d8eb4710548a759b782243

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\svchost.exe.log
    Filesize

    408B

    MD5

    990b13271f910ff95a15661b6487d0b3

    SHA1

    e21b33ee37f4f6bbde6a259a098c6eb3905708a3

    SHA256

    33616c58b0e2589ba7d3b6c19df603bccdfd4f25c30b95c80693810453e8f1b5

    SHA512

    707fad1e00fdd005c1162970b428a96692856246965e0474e4677b90a9c066cf75b61bd80a4072e567074c8fa12e44dfa0d7cc00e03981a429bbd07609f759b4

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  • C:\Users\Admin\AppData\Local\Temp\melt.txt
    Filesize

    44B

    MD5

    298802dff6aa26d4fb941c7ccf5c0849

    SHA1

    11e518ca3409f1863ebc2d3f1be9fb701bad52c0

    SHA256

    df99fdbdf7b92b29b1bf1ca4283b4de2e04643b9739d2d1089ab5808e8e5665d

    SHA512

    0301017dfef1b74855d6535f3fd542257689479cb933c2e8742b5b6b94e26107fa38e7fc21bdb83d45184750eced344856092330fb30a1ebbc24b2b9004c8946

    Download Submit

  • C:\Users\Admin\AppData\Roaming\app
    Filesize

    5B

    MD5

    112317d572ce0538d2d1b20d7f32170e

    SHA1

    c7f3714c4806b907bcff7f79aa1d1c9373b77d1e

    SHA256

    fd9e9a8be71786826787d6eb9aa28371d09b0515ddf0c19b082fe7bac57a88a9

    SHA512

    265dbebc83c74dc97770e650580b0321144990d133403bab2bc1de4618cde63dfd4fedfa56b5e4e259b510585db0f7a59042c356356c56bea3ac861d4be5337f

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  • memory/3084-0-0x0000000074952000-0x0000000074953000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3084-1-0x0000000074950000-0x0000000074F01000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3084-2-0x0000000074950000-0x0000000074F01000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3084-15-0x0000000074952000-0x0000000074953000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3084-16-0x0000000074950000-0x0000000074F01000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3084-17-0x0000000074950000-0x0000000074F01000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3084-46-0x0000000074950000-0x0000000074F01000-memory.dmp

    Filesize

    5.7MB

    Download