Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/02/2024, 17:10

General

  • Target

    7eeb07b3e012c8722c9712ca1b82bab3ef74cdf928f47536733d7a5946ae43b8.exe

  • Size

    21KB

  • MD5

    a3ec315f74f4eb882253bb147a4ab410

  • SHA1

    02bff27c982f24e7472df1c0284dfb1e46a2cc3c

  • SHA256

    7eeb07b3e012c8722c9712ca1b82bab3ef74cdf928f47536733d7a5946ae43b8

  • SHA512

    a5349e7e2b12608114297bb35820c52198bb1631d8293483f410a0a24be6a14a8adde230814e6cf071e7d026fcd7595f470440c4eacc625b3722a2a4542fbcdb

  • SSDEEP

    384:7rwgu4oJuTJj+XZ9Y9qkyUI07jn6qq9fUaIfqfxWkqxrF6ZlvH38R0VKRxxxxxb0:HaJU+Je9Lwjn9fU7q55AQDHr7V

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\readme-warning.txt

Family

makop

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted and now have the "makop" extension. The file structure was not damaged, we did everything possible so that this could not happen. .2. Q: How to recover files? A: If you wish to decrypt your files you will need to pay in bitcoins. .3. Q: What about guarantees? A: Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will cooperate with us. Its not in our interests. To check the ability of returning files, you can send to us any 2 files with SIMPLE extensions(jpg,xls,doc, etc... not databases!) and low sizes(max 1 mb), we will decrypt them and send back to you. That is our guarantee. .4. Q: How to contact with you? A: You can write us to our mailbox: [email protected] or [email protected] .5. Q: How will the decryption process proceed after payment? A: After payment we will send to you our scanner-decoder program and detailed instructions for use. With this program you will be able to decrypt all your encrypted files. .6. Q: If I don�t want to pay bad people like you? A: If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause only we have the private key. In practice - time is much more valuable than money. :::BEWARE::: DON'T try to change encrypted files by yourself! If you will try to use any third party software for restoring your data or antivirus solutions - please make a backup for all encrypted files! Any changes in encrypted files may entail damage of the private key and, as result, the loss all data.

Signatures

  • Makop

    Ransomware family discovered by @VK_Intel in early 2020.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Renames multiple (11538) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • UPX dump on OEP (original entry point) 13 IoCs
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 13 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 64 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 15 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 service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\7eeb07b3e012c8722c9712ca1b82bab3ef74cdf928f47536733d7a5946ae43b8.exe
    "C:\Users\Admin\AppData\Local\Temp\7eeb07b3e012c8722c9712ca1b82bab3ef74cdf928f47536733d7a5946ae43b8.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Users\Admin\AppData\Local\Temp\7eeb07b3e012c8722c9712ca1b82bab3ef74cdf928f47536733d7a5946ae43b8.exe
      "C:\Users\Admin\AppData\Local\Temp\7eeb07b3e012c8722c9712ca1b82bab3ef74cdf928f47536733d7a5946ae43b8.exe" n1596
      2⤵
        PID:4648
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2184
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:832
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3928
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:4264
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1632
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:2176
      • C:\Windows\SysWOW64\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\readme-warning.txt
        2⤵
          PID:4360
        • C:\Users\Admin\AppData\Local\Temp\7eeb07b3e012c8722c9712ca1b82bab3ef74cdf928f47536733d7a5946ae43b8.exe
          "C:\Users\Admin\AppData\Local\Temp\7eeb07b3e012c8722c9712ca1b82bab3ef74cdf928f47536733d7a5946ae43b8.exe" n1596
          2⤵
            PID:5056
          • C:\Users\Admin\AppData\Local\Temp\7eeb07b3e012c8722c9712ca1b82bab3ef74cdf928f47536733d7a5946ae43b8.exe
            "C:\Users\Admin\AppData\Local\Temp\7eeb07b3e012c8722c9712ca1b82bab3ef74cdf928f47536733d7a5946ae43b8.exe" n1596
            2⤵
              PID:3180
            • C:\Users\Admin\AppData\Local\Temp\7eeb07b3e012c8722c9712ca1b82bab3ef74cdf928f47536733d7a5946ae43b8.exe
              "C:\Users\Admin\AppData\Local\Temp\7eeb07b3e012c8722c9712ca1b82bab3ef74cdf928f47536733d7a5946ae43b8.exe" n1596
              2⤵
                PID:3996
            • C:\Windows\system32\vssvc.exe
              C:\Windows\system32\vssvc.exe
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:436
            • C:\Windows\system32\wbengine.exe
              "C:\Windows\system32\wbengine.exe"
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:3060
            • C:\Windows\System32\vdsldr.exe
              C:\Windows\System32\vdsldr.exe -Embedding
              1⤵
                PID:3188
              • C:\Windows\System32\vds.exe
                C:\Windows\System32\vds.exe
                1⤵
                • Checks SCSI registry key(s)
                PID:2568

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\$Recycle.Bin\S-1-5-21-3803511929-1339359695-2191195476-1000\desktop.ini

                Filesize

                356B

                MD5

                52c4cb5d38bbe62973b211c77e3c9f5e

                SHA1

                3e152f335003fa82bf5263229378b1f96f3292b7

                SHA256

                1245348c065810e2ebff79207f71207973822ce6ebd2d9b4d0c212d91c7da7fd

                SHA512

                21d7a0cce716ee124dc24f5d18a599cbbad077b74c4d1c99a6b65014e17cdabe976409de5f35fe7e0a34441549f33d264ae0fe9e399b8bf162faaf68b1be6bbe

              • C:\$Recycle.Bin\S-1-5-21-3803511929-1339359695-2191195476-1000\desktop.ini

                Filesize

                356B

                MD5

                4951003111c191afab2bf0f7921afaba

                SHA1

                51cc212a6da88360f8930c9132b484e1aa103141

                SHA256

                2840fbb5894efe7920e085ac3816b27c740d3685dde8e4de70803f18d47e9406

                SHA512

                e0914c5b54cc1ada20d1738dc0f66c4a0e6e411a2efc8a33211bf3820425ccb24a624968753e12d814b9c15d932ca925db719da132b7d43d810e2156aefaa9f9

              • C:\$Recycle.Bin\S-1-5-21-3803511929-1339359695-2191195476-1000\desktop.ini

                Filesize

                580B

                MD5

                bd64c1e13c42c7348b500ef370ab081a

                SHA1

                3becc7e4126a10d022ddc09dc889be6e99b28929

                SHA256

                430cae62033b9034b57377b1925c12f1d39fbc80938ec8b1067c6d4f21ae3be3

                SHA512

                791794b829e6f6dbddb16983b9d8563003d2af4d7a64e6d430a290154e946b9215356b858c893ff4ae581f66d6d3244a88b3daa8b73a3153b3cddb7dfb87bd0a

              • C:\$Recycle.Bin\S-1-5-21-3803511929-1339359695-2191195476-1000\desktop.ini

                Filesize

                804B

                MD5

                574b4f55d72aad95166e93a87c814d84

                SHA1

                820d16e17cd7dfa46b913e9e8c3d40e52e19ebf5

                SHA256

                514c12f12058df9904ada5362c0de396e0625b6be28b2e7dade8b03652c31ef5

                SHA512

                7de8214b18b04791e986c5b172ff720e56a6379bbf55f9df4b67b8b5438737ddcd1e72add8451a5f8f2bc4b3e9363384072b030201943936eab362df3f1e87c5

              • C:\Users\Admin\Desktop\readme-warning.txt

                Filesize

                1KB

                MD5

                3969a092772b5de3679972011f94f476

                SHA1

                8a807f322b60e2d4fadcb9383a38e2cf74932a29

                SHA256

                1532252a2a8413b9c30c2a9f960b4f0504432233c040d6b5725cd4a04dcc5226

                SHA512

                4d1c1eaa99718c9918c486d1b37c62ff43ab91ff13d5cfb29cc37d7a4e94eedec32e3e90d1e7cf1a4c3b09cd9bc8a079b74e811fa39a42483383b012c549f68b

              • memory/1596-23245-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/1596-23174-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/1596-0-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/1596-9150-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/3180-23323-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/3180-23254-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/3180-23320-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/3996-23328-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/3996-23397-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/4648-18630-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/4648-9151-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/5056-23249-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/5056-23183-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB