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Analysis

  • max time kernel
    110s
  • max time network
    166s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241211-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    13-01-2025 14:41

Errors

Reason
Machine shutdown

General

  • Target

    4363463463464363463463463.exe

  • Size

    10KB

  • MD5

    2a94f3960c58c6e70826495f76d00b85

  • SHA1

    e2a1a5641295f5ebf01a37ac1c170ac0814bb71a

  • SHA256

    2fcad226b17131da4274e1b9f8f31359bdd325c9568665f08fd1f6c5d06a23ce

  • SHA512

    fbf55b55fcfb12eb8c029562956229208b9e8e2591859d6336c28a590c92a4d0f7033a77c46ef6ebe07ddfca353aba1e84b51907cd774beab148ee901c92d62f

  • SSDEEP

    192:xlwayyHOXGc20L7BIW12n/ePSjiTlzkGu8stYcFwVc03KY:xlwwHe/20PKn/cLTlHuptYcFwVc03K

Malware Config

Extracted

Family

xworm

Version

5.0

C2

ms-pupils.gl.at.ply.gg:42890

Mutex

206zDqrlQGtyKuTY

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

aes.plain

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

C2

sayrich.ddns.net:7777

Mutex

Yandex. Update

Attributes
  • reg_key

    Yandex. Update

  • splitter

    |Hassan|

Signatures

  • Detect Xworm Payload 2 IoCs
  • Njrat family
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

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

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

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 7 IoCs
  • Modifies system executable filetype association 2 TTPs 16 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs
  • Drops file in Windows directory 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 7 IoCs

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

  • Modifies registry class 64 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 22 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.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\4363463463464363463463463.exe
    "C:\Users\Admin\AppData\Local\Temp\4363463463464363463463463.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Users\Admin\AppData\Local\Temp\Files\XClient.exe
      "C:\Users\Admin\AppData\Local\Temp\Files\XClient.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:5448
    • C:\Users\Admin\AppData\Local\Temp\Files\Steam.Upgreyd.exe
      "C:\Users\Admin\AppData\Local\Temp\Files\Steam.Upgreyd.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4044
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4024
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4868
    • C:\Users\Admin\Desktop\4363463463464363463463463.exe
      "C:\Users\Admin\Desktop\4363463463464363463463463.exe"
      1⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Users\Admin\Desktop\Files\pghsefyjhsef.exe
        "C:\Users\Admin\Desktop\Files\pghsefyjhsef.exe"
        2⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:792
        • C:\Users\Admin\AppData\Local\Temp\bfe2cd46d6\Gxtuum.exe
          "C:\Users\Admin\AppData\Local\Temp\bfe2cd46d6\Gxtuum.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:5528
    • C:\Users\Admin\Desktop\4363463463464363463463463.exe
      "C:\Users\Admin\Desktop\4363463463464363463463463.exe"
      1⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:6124
      • C:\Users\Admin\Desktop\Files\njrat.exe
        "C:\Users\Admin\Desktop\Files\njrat.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4312
      • C:\Users\Admin\Desktop\Files\hell9o.exe
        "C:\Users\Admin\Desktop\Files\hell9o.exe"
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2688
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\regdel.CMD
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:464
          • C:\Windows\system32\reg.exe
            reg DELETE HKEY_CLASSES_ROOT /f
            4⤵
            • Modifies system executable filetype association
            • Modifies registry class
            PID:3092
          • C:\Windows\system32\reg.exe
            reg DELETE HKEY_CURRENT_USER /f
            4⤵
              PID:5108
            • C:\Windows\system32\reg.exe
              reg DELETE HKEY_LOCAL_MACHINE /f
              4⤵
                PID:2216
              • C:\Windows\system32\reg.exe
                reg DELETE HKEY_USERS /f
                4⤵
                  PID:4032
                • C:\Windows\system32\reg.exe
                  reg DELETE HKEY_CURRENT_CONFIG /f
                  4⤵
                    PID:2224
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\regdel.CMD
                  3⤵
                    PID:4676
                • C:\Users\Admin\Desktop\Files\IATInfect2008_64.exe
                  "C:\Users\Admin\Desktop\Files\IATInfect2008_64.exe"
                  2⤵
                  • Executes dropped EXE
                  PID:2308
              • C:\Users\Admin\AppData\Local\Temp\bfe2cd46d6\Gxtuum.exe
                "C:\Users\Admin\AppData\Local\Temp\bfe2cd46d6\Gxtuum.exe"
                1⤵
                  PID:1464

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Temp\Files\Steam.Upgreyd.exe

                  Filesize

                  43KB

                  MD5

                  f0aabba97f470b9a61755d9dfa2a3ff8

                  SHA1

                  059523a98fca16f9211881c2bc3d8257f6cba0ed

                  SHA256

                  3a3303bb8761484ee722c492b61c43793b64926e42bb3c90112765ae1cfe3406

                  SHA512

                  5e1b52211cdfefaedc405825ba58dade787de82d1cfe789236c6b75b9273fe6896c44151dc775397438c269ea0a8edab7b9abfccab777a22f988e3843d634825

                • C:\Users\Admin\AppData\Local\Temp\Files\XClient.exe

                  Filesize

                  34KB

                  MD5

                  9ccc3000c7dcdec24959db69279f595e

                  SHA1

                  01950d30d19f67b5add82f6d60f6982f060418f1

                  SHA256

                  0c0aa0570872f28a905c4c6bafc9b7c2400da7b412b73ca03bcbb15242a17550

                  SHA512

                  f5b40ee47264ebeb69935b102a4777877965f464501c50d84d2e5e4ebd9db344c07bb67b5a2f5171ae1e335fdee3e62d8914bec8a1f38dee3019bb7732a6f656

                • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\regdel.CMD

                  Filesize

                  159B

                  MD5

                  e26bcceba32f987399a0decf331f0697

                  SHA1

                  64540b56c5ff6dbb963faa50a85159c62edf7365

                  SHA256

                  0fd1b221f5a865fd9d796857f51724ad6460d409e2cffe8cfaef091daa689d05

                  SHA512

                  d96236da499970dfd6702150a5140e947547e50e3ec6b5ee3d7923ddcc637a01a9e747ecac0b81d4268cbe1a7788c63d5b4ec1373fc46318d8a5d676f510d508

                • C:\Users\Admin\Desktop\Files\IATInfect2008_64.exe

                  Filesize

                  128KB

                  MD5

                  9d0543fe47a390f1e4c7c81bb3326637

                  SHA1

                  197c81881acd0ffc7d9219e4a9df1688714ea70e

                  SHA256

                  58be2f77908a38e2ab7120837ba4985d3ba6b3dbe43e872ae039c69cdbc947dd

                  SHA512

                  e92518aed9f662f3786e091a611ca13ab837b5eb14bada98910328b0d1b9de163f53c1afa7e57a7e9f9b3e44af46e8afaa1f4e804b20f37e6329d329c521570b

                • C:\Users\Admin\Desktop\Files\hell9o.exe

                  Filesize

                  172KB

                  MD5

                  2e933118fecbaf64bbd76514c47a2164

                  SHA1

                  a70a1673c4c7d0c0c12bc42bc676a1e9a09edc21

                  SHA256

                  5268359ebc3f9e709c8eee1fa9d3e7c579b3e4563fabb9c394abe0fe2e39137f

                  SHA512

                  c34672e55625462d16051cd725c96d634e459d61a9552f858f0b234d5eedf67594ca336f4fd695e3046c4e0485d4fa4497b6c604ee4144c49a6c1c0838628bdb

                • C:\Users\Admin\Desktop\Files\njrat.exe

                  Filesize

                  37KB

                  MD5

                  4699bec8cd50aa7f2cecf0df8f0c26a0

                  SHA1

                  c7c6c85fc26189cf4c68d45b5f8009a7a456497d

                  SHA256

                  d6471589756f94a0908a7ec9f0e0e98149882ce6c1cf3da9852dc88fcc3d513d

                  SHA512

                  5701a107e8af1c89574274c8b585ddd87ae88332284fc18090bbcccf5d11b65486ccf70450d4451fec7c75474a62518dd3c5e2bedda98487085276ac51d7ac0e

                • C:\Users\Admin\Desktop\Files\pghsefyjhsef.exe

                  Filesize

                  429KB

                  MD5

                  e21a937337ce24864bb9ca1b866c4b6e

                  SHA1

                  3fdfacb32c866f5684bceaab35cea6725f76182f

                  SHA256

                  55db20b6ddab0de6b84f4200fbde54b719709d7c50f0bdd808369dbb73deef70

                  SHA512

                  9fb59ecc82984dcc854a31ae2e871f88fd679a162ee912eb92879576397fa29eddc2ec2787f7645aa72c4dc641456980f6b897302650f0d10466dea50506f533

                • memory/1764-5-0x0000000074F70000-0x0000000075721000-memory.dmp

                  Filesize

                  7.7MB

                • memory/1764-2-0x0000000004D80000-0x0000000004E1C000-memory.dmp

                  Filesize

                  624KB

                • memory/1764-1-0x00000000002E0000-0x00000000002E8000-memory.dmp

                  Filesize

                  32KB

                • memory/1764-0-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

                  Filesize

                  4KB

                • memory/1764-4-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

                  Filesize

                  4KB

                • memory/1764-3-0x0000000074F70000-0x0000000075721000-memory.dmp

                  Filesize

                  7.7MB

                • memory/1964-7-0x0000000074F70000-0x0000000075721000-memory.dmp

                  Filesize

                  7.7MB

                • memory/1964-6-0x0000000074F70000-0x0000000075721000-memory.dmp

                  Filesize

                  7.7MB

                • memory/1964-91-0x0000000074F70000-0x0000000075721000-memory.dmp

                  Filesize

                  7.7MB

                • memory/4044-76-0x00000000002E0000-0x00000000002F2000-memory.dmp

                  Filesize

                  72KB

                • memory/4044-77-0x0000000005510000-0x0000000005AB6000-memory.dmp

                  Filesize

                  5.6MB

                • memory/4044-78-0x0000000005000000-0x0000000005092000-memory.dmp

                  Filesize

                  584KB

                • memory/4044-98-0x0000000004FA0000-0x0000000004FAA000-memory.dmp

                  Filesize

                  40KB

                • memory/5448-64-0x0000000000780000-0x000000000078E000-memory.dmp

                  Filesize

                  56KB