Overview

overview

10

Static

static

10

9c3942cc35...da.exe

windows7-x64

10

9c3942cc35...da.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    14-02-2024 17:17

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General

  • Target

    9c3942cc35345c4ffffdff580e450f86626d89871c853834c2b126afb023ccda.exe

  • Size

    42KB

  • MD5

    2cd8cf70d3524eadb7727d3024d3f00b

  • SHA1

    ee1502fef2c1322aebf47b1bd8518542f9092336

  • SHA256

    9c3942cc35345c4ffffdff580e450f86626d89871c853834c2b126afb023ccda

  • SHA512

    f59f40016c52a80ca5039ef69a9186d70cea1544e99b8ff65bc2f4f7075bae097768ca87b3f9061d44675133babcb74bfa687035a4ac45f1dffb05197e54d0ae

  • SSDEEP

    768:9O1oR/pLVS1RzK4wbs+D/SIJX+ZZ1SQQwZuIOPzDffo72eqcKsUZ1S0rbjy:9TS1FKnDtkuImffo7bzKPy

Score
10/10
ransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\+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 mailboxes: [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

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Renames multiple (8322) files with added filename extension

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

    ransomware
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • 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.

    spywarestealer
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • 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.

    ransomware
  • Modifies system certificate store 2 TTPs 6 IoCs
    evasionspywaretrojan
  • 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.

    persistence
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c3942cc35345c4ffffdff580e450f86626d89871c853834c2b126afb023ccda.exe
    "C:\Users\Admin\AppData\Local\Temp\9c3942cc35345c4ffffdff580e450f86626d89871c853834c2b126afb023ccda.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:1948
    • C:\Users\Admin\AppData\Local\Temp\9c3942cc35345c4ffffdff580e450f86626d89871c853834c2b126afb023ccda.exe
      "C:\Users\Admin\AppData\Local\Temp\9c3942cc35345c4ffffdff580e450f86626d89871c853834c2b126afb023ccda.exe" n1948
      2⤵
        PID:2180
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2256
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2404
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:2720
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2868
      • 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\9c3942cc35345c4ffffdff580e450f86626d89871c853834c2b126afb023ccda.exe" & del /q /f "C:\Users\Admin\AppData\Local\Temp\9c3942cc35345c4ffffdff580e450f86626d89871c853834c2b126afb023ccda.exe"
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:1628
        • C:\Windows\SysWOW64\PING.EXE
          ping 1.1.1.1 -n 5
          3⤵
          • Runs ping.exe
          PID:1844
        • C:\Windows\SysWOW64\fsutil.exe
          fsutil file setZeroData offset=0 length=131072 "C:\Users\Admin\AppData\Local\Temp\9c3942cc35345c4ffffdff580e450f86626d89871c853834c2b126afb023ccda.exe"
          3⤵
            PID:852
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2808
      • C:\Windows\system32\wbengine.exe
        "C:\Windows\system32\wbengine.exe"
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2668
      • C:\Windows\System32\vdsldr.exe
        C:\Windows\System32\vdsldr.exe -Embedding
        1⤵
          PID:2368
        • C:\Windows\System32\vds.exe
          C:\Windows\System32\vds.exe
          1⤵
            PID:1876
          • C:\Windows\system32\Dwm.exe
            "C:\Windows\system32\Dwm.exe"
            1⤵
              PID:3000

            Network

            MITRE ATT&CK Enterprise v15

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            Downloads

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

              344B

              MD5

              3a8722a7ccf20b1e2d5c90eecb2a4388

              SHA1

              1bfcff93d3016c8af9a8319259d29d1f2b2da7df

              SHA256

              8499b1757e3f93bcfc23dfb48e14d86da9495bd2910b9865469bbe86161bcf58

              SHA512

              8f3f78426eff1efd299c44cdb2c0f2e38f4f6113e4157e24db64d66116ee6fdfc445d1d4a085f86393427855b73cfbfeb39b8d70005cc3ef6e0a92b07d796eb9

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            • C:\Users\Admin\AppData\Local\Temp\+README-WARNING+.txt
              Filesize

              1KB

              MD5

              67ca0542412d0ee27ea019df66573293

              SHA1

              ba10dea6947a765dbb7e85fdd0ffc14da93c4be2

              SHA256

              ac5e29f8a9e55ad909dd283eede7f9b3cc36ef75e03e4bddd88a05555ad0938d

              SHA512

              585b79c956aa2089007c2526d1d3f1e1d4eb3184e6202fa295fd93e2a9481fa8f8985908458057117911f54524fa9d0871f12a9bfd5714b88a7de93c16d72506

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            • C:\Users\Admin\AppData\Local\Temp\Cab13C1.tmp
              Filesize

              65KB

              MD5

              ac05d27423a85adc1622c714f2cb6184

              SHA1

              b0fe2b1abddb97837ea0195be70ab2ff14d43198

              SHA256

              c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

              SHA512

              6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

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            • C:\Users\Admin\AppData\Local\Temp\Tar1460.tmp
              Filesize

              171KB

              MD5

              9c0c641c06238516f27941aa1166d427

              SHA1

              64cd549fb8cf014fcd9312aa7a5b023847b6c977

              SHA256

              4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

              SHA512

              936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

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