Analysis

  • max time kernel
    130s
  • max time network
    129s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    18-03-2021 06:41

General

  • Target

    e029107139c27f93a1ad1e718dc27369.exe

  • Size

    712KB

  • MD5

    e029107139c27f93a1ad1e718dc27369

  • SHA1

    060c494bd61498e36a5639fcc5133d0e4ecde636

  • SHA256

    9feb26b9550dbf46719374757468d95b6882c00fd3ca65a02e9edf2854e900a9

  • SHA512

    b296af96bec07e9e60e8e9d517c05c7bc140ec5b8fdc37dd848656eed03ee4c318227c36cd2efae81ce0b3f27ae54be1a6abf379822c83ca6c935972617ad6d8

Malware Config

Extracted

Path

C:\_readme.txt

Family

djvu

Ransom Note
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-NuEqGxqRg2 Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0288WidasdEsUZas7gkeb7VFrTQj5WSD57OcedsLtXr4RxxhWn
URLs

https://we.tl/t-NuEqGxqRg2

Signatures

  • Detected Djvu ransomeware 3 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Modifies extensions of user files 8 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Loads dropped DLL 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e029107139c27f93a1ad1e718dc27369.exe
    "C:\Users\Admin\AppData\Local\Temp\e029107139c27f93a1ad1e718dc27369.exe"
    1⤵
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3244
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\1a95989f-733c-4f70-acd6-8d3312824d74" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      PID:184
    • C:\Users\Admin\AppData\Local\Temp\e029107139c27f93a1ad1e718dc27369.exe
      "C:\Users\Admin\AppData\Local\Temp\e029107139c27f93a1ad1e718dc27369.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • Modifies extensions of user files
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3044
      • C:\Users\Admin\AppData\Local\0f0b86bf-0290-4498-8c09-d29851e62ac5\5.exe
        "C:\Users\Admin\AppData\Local\0f0b86bf-0290-4498-8c09-d29851e62ac5\5.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3472
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /im 5.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\0f0b86bf-0290-4498-8c09-d29851e62ac5\5.exe" & del C:\ProgramData\*.dll & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2740
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /im 5.exe /f
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:2448
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 6
            5⤵
            • Delays execution with timeout.exe
            PID:1060
  • C:\Users\Admin\AppData\Local\1a95989f-733c-4f70-acd6-8d3312824d74\e029107139c27f93a1ad1e718dc27369.exe
    C:\Users\Admin\AppData\Local\1a95989f-733c-4f70-acd6-8d3312824d74\e029107139c27f93a1ad1e718dc27369.exe --Task
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    PID:3844

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\freebl3.dll

    MD5

    ef2834ac4ee7d6724f255beaf527e635

    SHA1

    5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

    SHA256

    a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

    SHA512

    c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

  • C:\ProgramData\mozglue.dll

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • C:\ProgramData\msvcp140.dll

    MD5

    109f0f02fd37c84bfc7508d4227d7ed5

    SHA1

    ef7420141bb15ac334d3964082361a460bfdb975

    SHA256

    334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

    SHA512

    46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

  • C:\ProgramData\nss3.dll

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • C:\ProgramData\softokn3.dll

    MD5

    a2ee53de9167bf0d6c019303b7ca84e5

    SHA1

    2a3c737fa1157e8483815e98b666408a18c0db42

    SHA256

    43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083

    SHA512

    45b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8

  • C:\ProgramData\vcruntime140.dll

    MD5

    7587bf9cb4147022cd5681b015183046

    SHA1

    f2106306a8f6f0da5afb7fc765cfa0757ad5a628

    SHA256

    c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

    SHA512

    0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    MD5

    8c19ddc7cba756dabfdf580493969c84

    SHA1

    e25f9e4b9278f6f01bab7ced704c0d77a5f7db98

    SHA256

    c478f117a5bcdfddffd99c8ba8779dc6d777a9ce44fae4adf64405a20eca675b

    SHA512

    da9b82e596b6cfef35441747198317527bafde2e58d8ede785f5090889b5add23ee2f2153be9986e144c1275128f2adb78304272675e2501a3938723add96862

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    MD5

    00dce674e69d868738126653ed6361c9

    SHA1

    8e5c4d6c70962df0a290e907f0178e1f4746acaa

    SHA256

    26c5310ed67aeb8b45baecf5ebe40a7fad3a0f4c353ae62d38a614ce989645d6

    SHA512

    7bf177602a70215d7c095eebc350d3c5a672b337bdfacddd71b5565466fd4d3c6d7c5aabb0df558085da5e7a1406aecdf4eaa697144844b51b0ff2cded2721a1

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    MD5

    30d48d88e582544e8def29508e814327

    SHA1

    f693e3d26b3124cd3f9de2e97aed5b430f5a1045

    SHA256

    92174384b526d92085cdf7f754c057447129131ea541838e92bb2a69c612af44

    SHA512

    7f985c7afd707c75326057c8617696678cf6c288f9c586edcda7d9c4e0e8e653b71630e401771f4d3857315648fcce08a255beccd53785a0269d0ea9748870af

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    MD5

    e58be39626851fd6a5b5f9d1690efa1c

    SHA1

    99190219d224a4e0085770d35689603a6fe4bcf0

    SHA256

    458111e21066f3507c7e7d828199b6e92ef030110b765ac12fea75b2e53c2df8

    SHA512

    1ee8b0fce225bef52bedf93a036e83c80ace2eb6fa378c64f2cc6e86106c37c91c3d6dabb1bdd6f0ee1ff745ccb45bc83c3bc60d6886a3b33111a092bb11d5a3

  • C:\Users\Admin\AppData\Local\0f0b86bf-0290-4498-8c09-d29851e62ac5\5.exe

    MD5

    212b12e2686111514455c97b689c8457

    SHA1

    2c39181e491ccea8f3eb1020b698bfaf57b31c15

    SHA256

    a8fe17654d8f2a952fee93bd6e78864ee4a2e766c92e6ba7dda2b0117e1ef97a

    SHA512

    cec5e902dce2dd4d70eef4ca835efa2704e49c434dd81e2b99100df76b1b095110e11b54ad5d2036d60f5378bf5fd637c5e0d36b7fcd3c0cd9cd77bc34c95346

  • C:\Users\Admin\AppData\Local\0f0b86bf-0290-4498-8c09-d29851e62ac5\5.exe

    MD5

    212b12e2686111514455c97b689c8457

    SHA1

    2c39181e491ccea8f3eb1020b698bfaf57b31c15

    SHA256

    a8fe17654d8f2a952fee93bd6e78864ee4a2e766c92e6ba7dda2b0117e1ef97a

    SHA512

    cec5e902dce2dd4d70eef4ca835efa2704e49c434dd81e2b99100df76b1b095110e11b54ad5d2036d60f5378bf5fd637c5e0d36b7fcd3c0cd9cd77bc34c95346

  • C:\Users\Admin\AppData\Local\1a95989f-733c-4f70-acd6-8d3312824d74\e029107139c27f93a1ad1e718dc27369.exe

    MD5

    e029107139c27f93a1ad1e718dc27369

    SHA1

    060c494bd61498e36a5639fcc5133d0e4ecde636

    SHA256

    9feb26b9550dbf46719374757468d95b6882c00fd3ca65a02e9edf2854e900a9

    SHA512

    b296af96bec07e9e60e8e9d517c05c7bc140ec5b8fdc37dd848656eed03ee4c318227c36cd2efae81ce0b3f27ae54be1a6abf379822c83ca6c935972617ad6d8

  • C:\Users\Admin\AppData\Local\1a95989f-733c-4f70-acd6-8d3312824d74\e029107139c27f93a1ad1e718dc27369.exe

    MD5

    e029107139c27f93a1ad1e718dc27369

    SHA1

    060c494bd61498e36a5639fcc5133d0e4ecde636

    SHA256

    9feb26b9550dbf46719374757468d95b6882c00fd3ca65a02e9edf2854e900a9

    SHA512

    b296af96bec07e9e60e8e9d517c05c7bc140ec5b8fdc37dd848656eed03ee4c318227c36cd2efae81ce0b3f27ae54be1a6abf379822c83ca6c935972617ad6d8

  • \ProgramData\mozglue.dll

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • \ProgramData\nss3.dll

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • memory/184-4-0x0000000000000000-mapping.dmp

  • memory/1060-25-0x0000000000000000-mapping.dmp

  • memory/2448-24-0x0000000000000000-mapping.dmp

  • memory/2740-23-0x0000000000000000-mapping.dmp

  • memory/3044-7-0x0000000000000000-mapping.dmp

  • memory/3044-8-0x0000000002680000-0x0000000002681000-memory.dmp

    Filesize

    4KB

  • memory/3044-14-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3244-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3244-2-0x0000000002690000-0x0000000002691000-memory.dmp

    Filesize

    4KB

  • memory/3244-3-0x0000000002690000-0x00000000027AA000-memory.dmp

    Filesize

    1.1MB

  • memory/3472-19-0x0000000002F70000-0x0000000003006000-memory.dmp

    Filesize

    600KB

  • memory/3472-20-0x0000000000400000-0x0000000000499000-memory.dmp

    Filesize

    612KB

  • memory/3472-15-0x0000000000000000-mapping.dmp

  • memory/3472-18-0x0000000003200000-0x0000000003201000-memory.dmp

    Filesize

    4KB

  • memory/3844-33-0x0000000002700000-0x0000000002701000-memory.dmp

    Filesize

    4KB