Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    28/01/2024, 21:30

General

  • Target

    7e0daefa772c4e91427b7e227464a94a.exe

  • Size

    846KB

  • MD5

    7e0daefa772c4e91427b7e227464a94a

  • SHA1

    47b45eae10de91705fb957be36415a0a3575ae3d

  • SHA256

    0905ce384f22775cbf39039e92c7c35ade14ce150be8eb76ad6d5be3a09fb908

  • SHA512

    cd60fc07593d242fe9b2e6ae74c340d36c905b8692f11df78ba15b92b52eaf0e4912777e179ed1d2a840c00fbc060ea86c8e82c506c00dd64efff84b5f0a9650

  • SSDEEP

    24576:0OeSD0Ks9nL9wm1saIFLe4kjDtbuaPWAEDq/:0hL9w/e4sDYa+PDq

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 15 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 2 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe
    "C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3032
    • C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe
      "C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3052
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\1fe3819f-2d26-46b1-952e-3045545ab74a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3004
      • C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe
        "C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2732
        • C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe
          "C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2600

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

          7e620bb51c6346619ece5d41f4ac9ccf

          SHA1

          55f8435cc4f740be20cc8f3e1f3709b3e37bff89

          SHA256

          972331bf876251e477d6232910b63cc2901ea9a039f03161b07bd4851d1452ab

          SHA512

          4b9a134d298f454348c3bdd274fa872df5d9e8fd107dce8792430837ab934c611eef26a2e0ec8bbc88bfc94a5b0c0e6add257ff1abcecf8fe6b3dddd1bb14874

        • 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

          7762afe53f20e206883c8d6ac743c3ad

          SHA1

          1e805aeb46f0dd74b61f3138d23494b0cf4d1dd6

          SHA256

          05b74a5eb62ece4fd2e020d3aaabe22f687b3e5a058475ac0e15a44280654c12

          SHA512

          b861caaa232aad0844db5f996233f2edd498dce1d3e95357fbd9343d9fa6d8cf1464ff08bff87421df1e8c2c93051b8837d473734926cefd26234871ac94b67a

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

          Filesize

          344B

          MD5

          ae39933ee01903e13fbd0614076acbe0

          SHA1

          ad8c8bb44c4602437e762f360f2a78fab7a98182

          SHA256

          ffb12f2b30dc3435e48b299bd0d93943542580509aea5933ee0bce631f680925

          SHA512

          e5998b297820346723fc1340eccd30de0c9f2258935f6957e2863f936ebc49a0fb84c8e88f05308b65635ebaeb42614535f575bfd8f4399ebf16d2bf75d02172

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

          Filesize

          392B

          MD5

          a1f4c5cccee37e883c90289c613564f0

          SHA1

          9ba586f3a9e1faf7b601b40dcd65382fb1bdaf03

          SHA256

          e4b8dbe4f87a58da1afe996040974d56d1a4c9e9065452203ae1c01c57a30e06

          SHA512

          bc4c9d5eb3a48c0fe96a36aabe7a1cfb1de102b720b13cee7af62857621f8e8ce83a74f01dd8723748f068444d22966eca115193962b9393211b82d4b0aa011b

        • C:\Users\Admin\AppData\Local\1fe3819f-2d26-46b1-952e-3045545ab74a\7e0daefa772c4e91427b7e227464a94a.exe

          Filesize

          846KB

          MD5

          7e0daefa772c4e91427b7e227464a94a

          SHA1

          47b45eae10de91705fb957be36415a0a3575ae3d

          SHA256

          0905ce384f22775cbf39039e92c7c35ade14ce150be8eb76ad6d5be3a09fb908

          SHA512

          cd60fc07593d242fe9b2e6ae74c340d36c905b8692f11df78ba15b92b52eaf0e4912777e179ed1d2a840c00fbc060ea86c8e82c506c00dd64efff84b5f0a9650

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

          Filesize

          65KB

          MD5

          ac05d27423a85adc1622c714f2cb6184

          SHA1

          b0fe2b1abddb97837ea0195be70ab2ff14d43198

          SHA256

          c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

          SHA512

          6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

        • memory/2600-50-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2600-58-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2600-59-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2600-56-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2600-34-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2600-35-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2600-48-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2600-54-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2600-49-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2600-57-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2732-27-0x0000000000310000-0x00000000003A2000-memory.dmp

          Filesize

          584KB

        • memory/2732-29-0x0000000000310000-0x00000000003A2000-memory.dmp

          Filesize

          584KB

        • memory/3032-2-0x0000000000360000-0x00000000003F2000-memory.dmp

          Filesize

          584KB

        • memory/3032-0-0x0000000000360000-0x00000000003F2000-memory.dmp

          Filesize

          584KB

        • memory/3032-5-0x0000000001DD0000-0x0000000001EEB000-memory.dmp

          Filesize

          1.1MB

        • memory/3032-52-0x0000000001DD0000-0x0000000001EEB000-memory.dmp

          Filesize

          1.1MB

        • memory/3052-7-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3052-8-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3052-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/3052-4-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3052-26-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB