Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    29-09-2024 03:30

General

  • Target

    2024-09-29_8911139e0686509cbf44954ba2ba6675_darkside.exe

  • Size

    150KB

  • MD5

    8911139e0686509cbf44954ba2ba6675

  • SHA1

    f16aad9a562b1de55e33b2de23abaa7eb0a4a5c7

  • SHA256

    4f395d7d4d5c2578f957070e4b0acc6d4bc2d0761f39258e990f2070bd3db2fc

  • SHA512

    d20a28ac9987409dfb450740f904138e7ffb5ce16cb7ae13b29061b990136e472cef56427e35a337d07d100e6a6c3ddf08c82a6d402f97c468b73ad8c2d4f6a1

  • SSDEEP

    3072:AqJogYkcSNm9V7D5KbhIJ+2EE9ZzoZmT:Aq2kc4m9tD5KmJ0EnMZ

Malware Config

Extracted

Path

C:\tMAXi4m5p.README.txt

Ransom Note
Hello my dear friend. Do not scan the files with antivirus in any case. In case of data loss, the consequences are yours. Your data is encrypted Unfortunately for you, a major IT security weakness left you open to attack, your files have been encrypted The only method of recovering files is to purchase decrypt tool and unique key for you. If you want to recover your files, write us to this e-mail: [email protected] In case of no answer in 24 hours write us to this backup e-mail: [email protected] Check your e-mail Spam or Junk folder if you don't get answer more than 6 hours. Contact us soon, because those who don't have their data leaked in our press release blog and the price they'll have to pay will go up significantly. Attention! Do not rename encrypted files. Do not try to decrypt your data using third party software - it may cause permanent data loss. We are always ready to cooperate and find the best way to solve your problem. The faster you write - the more favorable conditions will be for you. Our company values its reputation. We give all guarantees of your files decryption. What are your recommendations? - Never change the name of the files, if you want to manipulate the files, be sure to back them up. If there are any problems with the files, we are not responsible for them. - Never work with intermediary companies because they charge you more money.Don't be afraid of us, just email us. Sensitive data on your system was DOWNLOADED. If you DON'T WANT your sensitive data to be PUBLISHED you have to act quickly. Data includes: - Employees personal data, CVs, DL, SSN. - Complete network map including credentials for local and remote services. - Private financial information including: clients data, bills, budgets, annual reports, bank statements. - Manufacturing documents including: datagrams, schemas, drawings in solidworks format - And more... 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. Do not go to the police or FBI for help and do not tell anyone that we attacked you. They won't help and will only make your situation worse.

Signatures

  • Renames multiple (299) 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 3 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.

  • 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.

  • Suspicious behavior: EnumeratesProcesses 12 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\2024-09-29_8911139e0686509cbf44954ba2ba6675_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-29_8911139e0686509cbf44954ba2ba6675_darkside.exe"
    1⤵
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\ProgramData\C217.tmp
      "C:\ProgramData\C217.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:2896
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\C217.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1340
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:1936

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-3551809350-4263495960-1443967649-1000\BBBBBBBBBBB

      Filesize

      129B

      MD5

      4c2332a90966adec3a6bfe977b149119

      SHA1

      4b2e1628d30a1cf1d1f4547d1af06103df235f61

      SHA256

      1bbc7a5184d086677a11690b7a8488fba0ce32d2b69a91f95a1fad402366c011

      SHA512

      7c4e598fa5a58e7e8ec26a026f5a8c92a2e14dd919aff0235ee86c91b3571c2e06789e36cd18ba18e8c7f2e635137d4577b2559e81de5faae6682a40521c7edf

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

      Filesize

      150KB

      MD5

      d5c190f812373e98aad30d7ca53c322e

      SHA1

      bd77f429fabd5bbc7629c279992e3041ee16c451

      SHA256

      556dc8b5bb5e2e65b4a64b3471d0def633fd7185e27cf8be8f460c5a11834845

      SHA512

      c534c3812746412f0dc5841e708fc95500a7f764d75357762a83d4bd480ba47fd8972f588b9caaafa0586c77d3e6feada6223b04e81cc334d1b10290ce43b917

    • C:\tMAXi4m5p.README.txt

      Filesize

      3KB

      MD5

      3b2c7f51fe80e142a7dbbf0d3565e398

      SHA1

      dc32f374357a8057bbe023e9e2ba9755b04388b3

      SHA256

      8ce7b3a993e3ab7bec11db06274026cc24cd6f04649db19e0b8a2e3c64177803

      SHA512

      0fe73ea135598b8ad13aa50b11e6ef82a2306e7bb66cf4f0b93747b64d233f42de049a32ff75b1bc315aa2b6f29c3524cfc467ba6782f2cbbbee526d39e88318

    • F:\$RECYCLE.BIN\S-1-5-21-3551809350-4263495960-1443967649-1000\FFFFFFFFFFF

      Filesize

      129B

      MD5

      c7669cb33bf8d81292321f5e2c20964b

      SHA1

      6ff5f583cadb9e840007ce19068a87909d2b2809

      SHA256

      74c49ad83a07fed57be72fa849ef8b9dfeb8ccf1d4480436c17877ecd1b8e913

      SHA512

      73fa2b7e67d68c83377b9e48b14b93506aedb5ef9472b351006fd33335543c8269c96c3018345f8bb0bc4cced1834565048ae3c93c952ad67408224fd21034c3

    • \ProgramData\C217.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/1700-0-0x00000000004A0000-0x00000000004E0000-memory.dmp

      Filesize

      256KB

    • memory/2896-831-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

    • memory/2896-833-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

    • memory/2896-832-0x0000000002360000-0x00000000023A0000-memory.dmp

      Filesize

      256KB

    • memory/2896-830-0x0000000002360000-0x00000000023A0000-memory.dmp

      Filesize

      256KB

    • memory/2896-828-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

    • memory/2896-863-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

    • memory/2896-862-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB