Analysis

  • max time kernel
    147s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-09-2024 17:57

General

  • Target

    d148dedc9b654f78a2ddd2298663df99d57d00cdec9e97a3722496cc51c60701.exe

  • Size

    732KB

  • MD5

    cdc4132b29e414f192431cf17c959a56

  • SHA1

    a26f541c8130c404020d76d98b4fb4c3c9600f99

  • SHA256

    d148dedc9b654f78a2ddd2298663df99d57d00cdec9e97a3722496cc51c60701

  • SHA512

    d85935b75ce1a78b026ccc2e015c1cf1e3013114a8ba0f2e48c2bc4d93cdbd913f18016214335c5111c491716f7a823e58366fb4a37778d32be78478ed128eef

  • SSDEEP

    12288:HLtTB27VeNWombj8dJBpuz4I3hrJAb8hWzmYe9VOucjSdsdfyv:rtUJ6W7WEcENAbbqmSdsNyv

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/lancer/get.php

Attributes
  • extension

    .qual

  • offline_id

    KLbRmn6on3AXGFgDLGtd0IkHmV7uHw9VxlcxO5t1

  • payload_url

  • 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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool. Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0876qual

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 13 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).

  • 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\d148dedc9b654f78a2ddd2298663df99d57d00cdec9e97a3722496cc51c60701.exe
    "C:\Users\Admin\AppData\Local\Temp\d148dedc9b654f78a2ddd2298663df99d57d00cdec9e97a3722496cc51c60701.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2756
    • C:\Users\Admin\AppData\Local\Temp\d148dedc9b654f78a2ddd2298663df99d57d00cdec9e97a3722496cc51c60701.exe
      "C:\Users\Admin\AppData\Local\Temp\d148dedc9b654f78a2ddd2298663df99d57d00cdec9e97a3722496cc51c60701.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2828
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\608f5632-d53f-4e1b-976b-3b4b7fda3fd3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2552
      • C:\Users\Admin\AppData\Local\Temp\d148dedc9b654f78a2ddd2298663df99d57d00cdec9e97a3722496cc51c60701.exe
        "C:\Users\Admin\AppData\Local\Temp\d148dedc9b654f78a2ddd2298663df99d57d00cdec9e97a3722496cc51c60701.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2580
        • C:\Users\Admin\AppData\Local\Temp\d148dedc9b654f78a2ddd2298663df99d57d00cdec9e97a3722496cc51c60701.exe
          "C:\Users\Admin\AppData\Local\Temp\d148dedc9b654f78a2ddd2298663df99d57d00cdec9e97a3722496cc51c60701.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    1KB

    MD5

    7fb5fa1534dcf77f2125b2403b30a0ee

    SHA1

    365d96812a69ac0a4611ea4b70a3f306576cc3ea

    SHA256

    33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

    SHA512

    a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

  • 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

    4eba20966d05750366c1c8718a3ec30f

    SHA1

    13f34d829474933f496b2aa9e416db30d3dd9ba0

    SHA256

    959bcf13dac05350a56a69053270f6fe935899b5062e77d04df0e3cac1969331

    SHA512

    20a34ca4dc654adf5aa9574eec0a84be3c4a3ef75f324aa055b8832cd7b908c2efd45d00a080aaba4a99ef9ee9e267d84c5c3afa962e998abe58bbab9d85c242

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

    Filesize

    342B

    MD5

    48c3452e71247f477faf753f3df5e0b5

    SHA1

    e9c14719f9e5a51810615d0660cd057b7e87f56b

    SHA256

    f414cc5c2c516bc1cb9f3d7a5f84c08671a517814c60e978aa990ebaff4327d8

    SHA512

    99f4e8d02257c02de16d49313234e79d041452462ccead0d3f3d8cafe15123a3b31d7fe9dc991d0c022b48481e49a807cc374a8a2369035d24c7a0f259a8b802

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

    Filesize

    170B

    MD5

    d7ff2aa1ed44254dda71bd435f11e960

    SHA1

    10419d39eb9757fb12e01608f26268946f68d09d

    SHA256

    87e92d2712c4d89a4feb72a240b096d69fcdddeb2b2117d9ba576f509700bf2b

    SHA512

    88d663ec0458be1da0b4604e811fb3b0442da0b6659f56d42aa2dd77f0ac0b8ee2c5467f67e8764929a0cb827141fe40b37857f704a4275f52498fff90cd6b7d

  • C:\Users\Admin\AppData\Local\608f5632-d53f-4e1b-976b-3b4b7fda3fd3\d148dedc9b654f78a2ddd2298663df99d57d00cdec9e97a3722496cc51c60701.exe

    Filesize

    732KB

    MD5

    cdc4132b29e414f192431cf17c959a56

    SHA1

    a26f541c8130c404020d76d98b4fb4c3c9600f99

    SHA256

    d148dedc9b654f78a2ddd2298663df99d57d00cdec9e97a3722496cc51c60701

    SHA512

    d85935b75ce1a78b026ccc2e015c1cf1e3013114a8ba0f2e48c2bc4d93cdbd913f18016214335c5111c491716f7a823e58366fb4a37778d32be78478ed128eef

  • C:\Users\Admin\AppData\Local\Temp\CabD59.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • memory/2052-47-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-45-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-55-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-32-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-51-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-54-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-53-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-46-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2580-29-0x0000000000220000-0x00000000002B1000-memory.dmp

    Filesize

    580KB

  • memory/2756-2-0x00000000038C0000-0x00000000039DB000-memory.dmp

    Filesize

    1.1MB

  • memory/2756-1-0x0000000003820000-0x00000000038B1000-memory.dmp

    Filesize

    580KB

  • memory/2756-0-0x0000000003820000-0x00000000038B1000-memory.dmp

    Filesize

    580KB

  • memory/2756-7-0x0000000003820000-0x00000000038B1000-memory.dmp

    Filesize

    580KB

  • memory/2828-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2828-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2828-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2828-9-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2828-27-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB