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Resubmissions

25/12/2024, 08:46

241225-kpbf1a1phr 10

25/12/2024, 06:12

241225-gx7bvsznej 10

Analysis

  • max time kernel
    148s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25/12/2024, 08:46

General

  • Target

    JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe

  • Size

    727KB

  • MD5

    066ad2d57886e7b26986539ae16ddc89

  • SHA1

    0555f68a0c96a2f8f2dd7447fad0641e4b122c06

  • SHA256

    dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698

  • SHA512

    5b05a12fe8f9351d838b2735c50e6ff082897129ff8ea89a50f836e6f42b4507babfb84a434fbad851e4fe9b720f714ead8c51463e19eb9af29323a863d8c23b

  • SSDEEP

    12288:Wb7/78mo1AzTv1Xcv+WjVxVcdP/tBB9o2DR9oxmpEGwbX:WbftM2WZLcdPHoYR9zEG8X

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/fhsgtsspen6/get.php

Attributes
  • extension

    .dmay

  • offline_id

    Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1

  • payload_url

    http://zerit.top/dl/build2.exe

    http://fuyt.org/files/1/build3.exe

  • ransomnote

    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-FT7BNVbXC9 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: 0458JIjdm

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 15 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Djvu family
  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2828
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1032
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\27319b95-62f7-40f9-ae77-b0ccf4e5ad31" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2916
      • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
        "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2996
        • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
          "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2704

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

    Filesize

    1KB

    MD5

    67e486b2f148a3fca863728242b6273e

    SHA1

    452a84c183d7ea5b7c015b597e94af8eef66d44a

    SHA256

    facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb

    SHA512

    d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

    Filesize

    436B

    MD5

    971c514f84bba0785f80aa1c23edfd79

    SHA1

    732acea710a87530c6b08ecdf32a110d254a54c8

    SHA256

    f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

    SHA512

    43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

    Filesize

    174B

    MD5

    de71e443bc3ecce97a3ddf59ef6d2d23

    SHA1

    9c04fa73e9108d99667537437ab1d837d34b926a

    SHA256

    68d811e1af0efd76d09094d70bfb2df4b8046823ffb1b06c180ef329ba54829f

    SHA512

    6d3837244c17e3afab2d988bf981d5498d2beb50d30705d3f6b7dbe877f2be57f3cc33795f1a7115b59f3471c9a4bb0d346fa7368e51d0d76b191f3dbef85517

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

    Filesize

    170B

    MD5

    fef4b54bdf51bc6f5d33116424ae2a95

    SHA1

    5d2bcaa17e91fbe2b62bf74f235e0cdc8eb653d4

    SHA256

    13ae6916dcd417b03c9e24c929b968d4e8cf4c453dabf3a3d5cddb3b68eda612

    SHA512

    fc49ec81b31cdb157601fc6bae807ed69893d82ab026b7c9fc3ff8f14802fd6255e3b34df9daa98f8a2be3d93a6625c170843e5c3fba8934ae954a2e5993e20c

  • C:\Users\Admin\AppData\Local\27319b95-62f7-40f9-ae77-b0ccf4e5ad31\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe

    Filesize

    727KB

    MD5

    066ad2d57886e7b26986539ae16ddc89

    SHA1

    0555f68a0c96a2f8f2dd7447fad0641e4b122c06

    SHA256

    dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698

    SHA512

    5b05a12fe8f9351d838b2735c50e6ff082897129ff8ea89a50f836e6f42b4507babfb84a434fbad851e4fe9b720f714ead8c51463e19eb9af29323a863d8c23b

  • C:\Users\Admin\AppData\Local\Temp\CabA563.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • memory/1032-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1032-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1032-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1032-9-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1032-25-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-35-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-62-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-66-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-64-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-65-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-53-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-49-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-48-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-47-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2828-1-0x0000000000310000-0x00000000003A1000-memory.dmp

    Filesize

    580KB

  • memory/2828-2-0x0000000001EC0000-0x0000000001FDB000-memory.dmp

    Filesize

    1.1MB

  • memory/2828-7-0x0000000000310000-0x00000000003A1000-memory.dmp

    Filesize

    580KB

  • memory/2828-0-0x0000000000310000-0x00000000003A1000-memory.dmp

    Filesize

    580KB

  • memory/2996-33-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2996-27-0x0000000000220000-0x00000000002B1000-memory.dmp

    Filesize

    580KB

  • memory/2996-28-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB