Windows 7 deprecation

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Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    01/08/2024, 00:57

General

  • Target

    2024-08-01_632207284b8cf84f06a93b82d4d553b2_darkside.exe

  • Size

    155KB

  • MD5

    632207284b8cf84f06a93b82d4d553b2

  • SHA1

    a873523884cea9e5148f9d26a4c66c34641b53fd

  • SHA256

    b0d1198b2021752acb56ec59912b67e48a61e9d5f2337ec889ae6a6b3cac5bdd

  • SHA512

    d4bbd18d467fbc270a0707018f04dbbab518a6c7e31780a1c9ecc4f9562667948b355dc46a6e075cda474ee3e62a3b222adc21567e68a94cdfe5100cd3b074fc

  • SSDEEP

    3072:UqJogYkcSNm9V7Dgji53yFLCJKw8zh1rZbT:Uq2kc4m9tDg+oFoKwU1l

Malware Config

Extracted

Path

C:\NjuwGaZ6g.README.txt

Ransom Note
>>>> Your data are stolen and encrypted If you don't pay the ransom, the data will be published on our TOR darknet sites. Keep in mind that once your data appears on our leak site, it could be bought by your competitors at any second, so don't hesitate for a long time. The sooner you pay the ransom, the sooner your company will be safe. >>>> You pay the fee, we will provide you with decryption services to help you fix the vulnerability >>>> You can send three files via email for decryption test, limit 3M. >>>> what is usdt? https://tether.to/ >>>> What guarantee is there that we won't cheat you? We are the oldest ransomware affiliate program on the planet, nothing is more important than our reputation. We are not a politically motivated group and we want nothing more than money. If you pay, we will provide you with decryption software and destroy the stolen data. After you pay the ransom, you will quickly make even more money. Treat this situation simply as a paid training for your system administrators, because it is due to your corporate network not being properly configured that we were able to attack you. Our pentest services should be paid just like you pay the salaries of your system administrators. Get over it and pay for it. If we don't give you a decryptor or delete your data after you pay, no one will pay us in the future. >>>> You need to contact our email: [email protected] [email protected] [email protected] You need to let all the above emails receive your email,lease note your ID in the email content. Write to us, we will always answer you. Sometimes you will need to wait for our response as we provide decryption services to many companies. You need to contact all our emails: [email protected], please note your ID in the email content. You need to contact all our emails: [email protected], please note your ID in the email content. You need to contact all our emails: [email protected], please note your ID in the email content. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>> Your personal DECRYPTION ID: 913D59053C9E918B67E1D5279B866E5E <<<< >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>> Warning! We will delete your key within 72 hours and re-encrypt the entire system. >>>> Warning! Do not DELETE or MODIFY any files, it can lead to recovery problems! >>>> Warning! If you don't pay the ransom, we will attack your company multiple times again! Or a data leak! >>>> If your encrypted server does not have important files and does not require decryption services, you can also seek cooperation. We will escort you. You only need to pay a small fee and we can provide your company with a full set of security assessment services. >>>> Don't go to the police or the FBI for help and don't tell anyone that we attacked you. They won't help and will only make things worse for you. In 3 years not a single member of our group has been caught by the police, we are top notch hackers and we never leave a trail of crime. The police will try to prohibit you from paying the ransom in any way. The first thing they will tell you is that there is no guarantee to decrypt your files and remove stolen files, this is not true, we can do a test decryption before paying and your data will be guaranteed to be removed because it is a matter of our reputation, we make hundreds of millions of dollars and are not going to lose our revenue because of your files. It is very beneficial for the police and FBI to let everyone on the planet know about your data leak because then your state will get the fines budgeted for you due to GDPR and other similar laws. The fines will be used to fund the police and the FBI, they will eat more sweet coffee donuts and get fatter and fatter. The police and the FBI don't care what losses you suffer as a result of our attack, and we will help you get rid of all your problems for a modest sum of money. Along with this you should know that it is not necessarily your company that has to pay the ransom and not necessarily from your bank account, it can be done by an unidentified person, such as any philanthropist who loves your company, for example, Elon Musk, so the police will not do anything to you if someone pays the ransom for you. If you're worried that someone will trace your bank transfers, you can easily buy cryptocurrency for cash, thus leaving no digital trail that someone from your company paid our ransom. The police and FBI will not be able to stop lawsuits from your customers for leaking personal and private information. The police and FBI will not protect you from repeated attacks. Paying the ransom to us is much cheaper and more profitable than paying fines and legal fees. >>>> What are the dangers of leaking your company's data. First of all, you will receive fines from the government such as the GDRP and many others, you can be sued by customers of your firm for leaking information that was confidential. Your leaked data will be used by all the hackers on the planet for various unpleasant things. For example, social engineering, your employees' personal data can be used to re-infiltrate your company. Bank details and passports can be used to create bank accounts and online wallets through which criminal money will be laundered. On another vacation trip, you will have to explain to the FBI where you got millions of dollars worth of stolen cryptocurrency transferred through your accounts on cryptocurrency exchanges. Your personal information could be used to make loans or buy appliances. You would later have to prove in court that it wasn't you who took out the loan and pay off someone else's loan. Your competitors may use the stolen information to steal technology or to improve their processes, your working methods, suppliers, investors, sponsors, employees, it will all be in the public domain. You won't be happy if your competitors lure your employees to other firms offering better wages, will you? Your competitors will use your information against you. For example, look for tax violations in the financial documents or any other violations, so you have to close your firm. According to statistics, two thirds of small and medium-sized companies close within half a year after a data breach. You will have to find and fix the vulnerabilities in your network, work with the customers affected by data leaks. All of these are very costly procedures that can exceed the cost of a ransomware buyout by a factor of hundreds. It's much easier, cheaper and faster to pay us the ransom. Well and most importantly, you will suffer a reputational loss, you have been building your company for many years, and now your reputation will be destroyed. >>>> Don't go to recovery companies, they are essentially just middlemen who will make money off you and cheat you. We are well aware of cases where recovery companies tell you that the ransom price is 5 million dollars, but in fact they secretly negotiate with us for 1 million dollars, so they earn 4 million dollars from you. If you approached us directly without intermediaries you would pay 5 times less, that is 1 million dollars.
URLs

https://tether.to/

Signatures

  • Renames multiple (342) files with added filename extension

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 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 3 IoCs

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

  • Modifies Control Panel 2 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-01_632207284b8cf84f06a93b82d4d553b2_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-01_632207284b8cf84f06a93b82d4d553b2_darkside.exe"
    1⤵
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\ProgramData\D21E.tmp
      "C:\ProgramData\D21E.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:3016
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\D21E.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1788
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:1980

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-1506706701-1246725540-2219210854-1000\desktop.ini

      Filesize

      129B

      MD5

      f7fab6072b96fde0ae8f3ebd1b4b9f8d

      SHA1

      46a48b1984923acd94cbb50200dd39fdecb83c39

      SHA256

      a83a9dec8b69cd5ecac150d56455df85bf8e03d20441fb69a312aedd38f448df

      SHA512

      f9363c9a7f0ff5be155a2950b2cee89ef450b9e3a141070b8a89552de452d83d3415eb5b4d577e89dfd58da7abe5e29c9e66005feb745f88b3f58d03f3b0dee3

    • C:\NjuwGaZ6g.README.txt

      Filesize

      7KB

      MD5

      3bfa3f7119c8a9e8c9572c94db97283f

      SHA1

      879beacbe243ab37564a322bf71b92a5a24ad7b4

      SHA256

      0c496bc31a204d2a33dcb73a95794961527c0cbc4864dae676158edef6894725

      SHA512

      fdb4f4fa04735e1945e099170fd45db8026e138d2ce42181ddd0fed6a157c3da514197d865337d447349bf58ec8b08702d00118156c05cbce89cb026d9fb27ec

    • C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

      Filesize

      155KB

      MD5

      c00ee33cc01fd65bbad5f1f704876e85

      SHA1

      812badd9b2d38cf59a743f0cbee71fbdfd4a564d

      SHA256

      79f91ab22c55e0bf486fadd44e8b38ba14faec9070882968155283a81db88d3e

      SHA512

      f2785e134a0af56a4c5c1439b68c003ee93dea87effa71cd7f52f815bb86da3965d573bfddc8c54271401ddbac114bf8471e0c80137fadaa04a644d05445c0dc

    • F:\$RECYCLE.BIN\S-1-5-21-1506706701-1246725540-2219210854-1000\HHHHHHHHHHH

      Filesize

      129B

      MD5

      be642c3f00f7e84ee83e9b752f697d68

      SHA1

      7bf12318d631c9c7748e12c93ec740f2dd59efd9

      SHA256

      b047356621a5f3c4cb3606e1dfcaf9868ca8a1fb8998c538572a023292d831ed

      SHA512

      1cd629012a2fce55d70561c0adc9a4e29797fbcfc97ec2ef5e4e3d26b7584a32c0aaac97e93b5919bda4cda1691df0b82c72fd966c1e477d838d7ccdd6387a05

    • \ProgramData\D21E.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/2136-0-0x0000000002040000-0x0000000002080000-memory.dmp

      Filesize

      256KB

    • memory/3016-851-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/3016-850-0x0000000000401000-0x0000000000404000-memory.dmp

      Filesize

      12KB