Analysis

  • max time kernel
    143s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09/04/2024, 10:55

General

  • Target

    e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe

  • Size

    787KB

  • MD5

    e9d42b34d47437c77e99450f1af86c33

  • SHA1

    5766d7dc892e885647aa321a21b25eef28a6812a

  • SHA256

    cb12fca8e610543daad15aae2ee6273730a74bc3eeefd51b06a835bc689c0c32

  • SHA512

    ec0c355d90949ff9b98ca8981e56a60a2513239c818bccd267dd6a0c001c589d478e4e02032954de1d043cbaed2d445291f9d5fcbc7a4386ee3c891eee873f62

  • SSDEEP

    24576:hJ3iLlDe8u88qbcrvybqFTCDWUDrtrK6xlJXXQiH8aMjLBPA:h0LRlnbRbqp+LDrtrKAlBWBI

Malware Config

Extracted

Family

djvu

C2

http://astdg.top/nddddhsspen6/get.php

Attributes
  • extension

    .moqs

  • offline_id

    CatwRkqdYh2Jomn6DqwFoGgcSbDsle1xlE1NPtt1

  • payload_url

    http://securebiz.org/dl/build2.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-N3p42CffoV 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: 0318ewgfDd

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 14 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP 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).

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2148
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\3474a9c5-2bd3-4ae4-830b-8404e67a1911" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2748
      • C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2828
        • C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2552

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

    Filesize

    1KB

    MD5

    fc5408c48a55314c72e200b74330cac4

    SHA1

    7e8889ec3189a40e6078088927bf3612753fa628

    SHA256

    7ea2a016d97635b1367455af2250cbf9e9c34d293829d11fc21ce905347590c4

    SHA512

    481753ef755c188012919ea728ea0395f22b6ce83f2f9a11675be6072f154db141b2382dc62ad7c3c95e36596529176a66f40e3d118cf0e33ea8e6f716ae1d77

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

    Filesize

    724B

    MD5

    8202a1cd02e7d69597995cabbe881a12

    SHA1

    8858d9d934b7aa9330ee73de6c476acf19929ff6

    SHA256

    58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

    SHA512

    97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

    Filesize

    410B

    MD5

    73bfeec4163a74514ccfecda051e9e58

    SHA1

    68f506f95a5a0181f09d816c08cddf77b5a8db11

    SHA256

    cc567f783293a1a94c62c5576ac307c3d148f427d0dbfeb6263b8fcd15f0097a

    SHA512

    0864e1e4edc588b0324df163fb4f62af8a1a4fc52809b559a4b16829a0017acfd05212da12060b8ed3a70e18f967deccf2bfd525caeb2364c5924f48b71cfad0

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    9ffee0ac86899df59a7c89abf1c9d974

    SHA1

    40e7588f7a9f9d5da4f1b95fb26342f3082729f4

    SHA256

    d90da81cdd4ebaab62057edbad34135df29db0f0265fbcb3db29f2a975dfd4b6

    SHA512

    47e946b531d3e7f5b6d5324562824ca10a5f87f7d61cd413fbe5062044101f777313b3b4c68032173058ffb2c388f4f73022961355ec1d3aa59f9bedbbbc0047

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

    Filesize

    392B

    MD5

    a2f4fbffe36922d0254668e4d20efe93

    SHA1

    b6a948229b5645a9dc36194c88809b60e9546f12

    SHA256

    f16a15080e88ba817351e6560fc2378c2270dfb1c97db60922d307d7fa7a8935

    SHA512

    28b0ed5f6fe3a2b565330d40535ae889df2b6928be0c578942d8bed30d862fb1c39bf2f4d1745c527843fdba44f2074478b9263b3fda9029b89b034574b59b09

  • C:\Users\Admin\AppData\Local\3474a9c5-2bd3-4ae4-830b-8404e67a1911\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe

    Filesize

    787KB

    MD5

    e9d42b34d47437c77e99450f1af86c33

    SHA1

    5766d7dc892e885647aa321a21b25eef28a6812a

    SHA256

    cb12fca8e610543daad15aae2ee6273730a74bc3eeefd51b06a835bc689c0c32

    SHA512

    ec0c355d90949ff9b98ca8981e56a60a2513239c818bccd267dd6a0c001c589d478e4e02032954de1d043cbaed2d445291f9d5fcbc7a4386ee3c891eee873f62

  • C:\Users\Admin\AppData\Local\Temp\Cab670D.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • memory/2148-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2148-7-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2148-26-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2148-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2148-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2552-35-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2552-54-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2552-58-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2552-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2552-57-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2552-56-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2552-50-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2552-48-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2552-49-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2828-30-0x0000000000320000-0x00000000003B2000-memory.dmp

    Filesize

    584KB

  • memory/2828-27-0x0000000000320000-0x00000000003B2000-memory.dmp

    Filesize

    584KB

  • memory/2992-1-0x0000000000340000-0x00000000003D2000-memory.dmp

    Filesize

    584KB

  • memory/2992-0-0x0000000000340000-0x00000000003D2000-memory.dmp

    Filesize

    584KB

  • memory/2992-2-0x0000000002260000-0x000000000237B000-memory.dmp

    Filesize

    1.1MB