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Analysis

  • max time kernel
    142s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/12/2024, 21:46

General

  • Target

    JaffaCakes118_1fe891ed34f4229717980a640061c6201029bcfee2708f0454a1c4be54792e7c.exe

  • Size

    757KB

  • MD5

    8dcbf7ea62059c8b10246754c3c9b800

  • SHA1

    177493084646918c0b6bed606be6dc2901cab25b

  • SHA256

    1fe891ed34f4229717980a640061c6201029bcfee2708f0454a1c4be54792e7c

  • SHA512

    4ce4990575ed8ef8d03d85a532a027443b9c270af6912dc8c45dff99ab604e82e441cabc0aa82784064f7e169709fc41d9c92b36016b6dc1c05e19306f19987a

  • SSDEEP

    12288:6ZUbR65iysDBtkrNmNSVAk2+vFi5thNVlZB+KSNPR7EOuMceBhvTWwSMmgOQzQmx:vR6JSarANSV12AEhNX+5N9oMcOv6wSMo

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .qpss

  • offline_id

    miqhSGmGE63yWs53FTz0fnp8eCARpnaYE3O3p2t1

  • 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-0SLhZxAjRX 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: 0448JIjdm

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 18 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Djvu family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fe891ed34f4229717980a640061c6201029bcfee2708f0454a1c4be54792e7c.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fe891ed34f4229717980a640061c6201029bcfee2708f0454a1c4be54792e7c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fe891ed34f4229717980a640061c6201029bcfee2708f0454a1c4be54792e7c.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fe891ed34f4229717980a640061c6201029bcfee2708f0454a1c4be54792e7c.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4928
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\b16ccb08-85ad-4436-80fd-f6f243c8d753" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:1724
      • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fe891ed34f4229717980a640061c6201029bcfee2708f0454a1c4be54792e7c.exe
        "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fe891ed34f4229717980a640061c6201029bcfee2708f0454a1c4be54792e7c.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1184
        • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fe891ed34f4229717980a640061c6201029bcfee2708f0454a1c4be54792e7c.exe
          "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fe891ed34f4229717980a640061c6201029bcfee2708f0454a1c4be54792e7c.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:1964

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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

    0e413b9ac2593add551efe8a1b49ca66

    SHA1

    1c26817f00188cc1dccd911e01d17be4bd42ecd6

    SHA256

    915bfb04f96dad72413323559e5d7248adb765aaa311a4723a04f0d3b3bdbaac

    SHA512

    630b70d5eede9fcbc940aad54378439a9f3f8ed6a7ba48d448a2d0c0db34ed2e6f5a5b8740d708d5a59f366427bd67be4bb1503761c27a9ef7b7a331d98948d6

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

    Filesize

    170B

    MD5

    4701f5dc4d9de085389c2aaaf96ed898

    SHA1

    9b7b236a2a388812b0e406ad6083ec57dfffbe58

    SHA256

    8eb9382197f6c53ccec5b62d199d59a6042e29c4651e49cf8e31a160634c63ee

    SHA512

    3e97536bb2c0ed6ac9bce2435c9943db3dd40576186b80e0adb22fab032f346f7b3b1f1f0d588cc8974e7acef6f93e00ec81b51f091173d6b7a69dcc1fe893ff

  • C:\Users\Admin\AppData\Local\b16ccb08-85ad-4436-80fd-f6f243c8d753\JaffaCakes118_1fe891ed34f4229717980a640061c6201029bcfee2708f0454a1c4be54792e7c.exe

    Filesize

    757KB

    MD5

    8dcbf7ea62059c8b10246754c3c9b800

    SHA1

    177493084646918c0b6bed606be6dc2901cab25b

    SHA256

    1fe891ed34f4229717980a640061c6201029bcfee2708f0454a1c4be54792e7c

    SHA512

    4ce4990575ed8ef8d03d85a532a027443b9c270af6912dc8c45dff99ab604e82e441cabc0aa82784064f7e169709fc41d9c92b36016b6dc1c05e19306f19987a

  • memory/1184-23-0x0000000000400000-0x00000000004E6000-memory.dmp

    Filesize

    920KB

  • memory/1184-19-0x0000000000400000-0x00000000004E6000-memory.dmp

    Filesize

    920KB

  • memory/1596-2-0x0000000002220000-0x000000000233B000-memory.dmp

    Filesize

    1.1MB

  • memory/1596-1-0x00000000005C0000-0x0000000000661000-memory.dmp

    Filesize

    644KB

  • memory/1964-35-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-30-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-49-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-48-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-21-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-24-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-47-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-46-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-31-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-44-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4928-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4928-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4928-17-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4928-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4928-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB