Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 07:57

General

  • Target

    e5d75153e389e1526499f700ce2ceb460c180abe94de1345427cc4454de1443c.exe

  • Size

    864KB

  • MD5

    44026b5522fd83419b8bf53ca150a0cc

  • SHA1

    3f5baaf4b5f5476590793408464f3f0610d00e89

  • SHA256

    e5d75153e389e1526499f700ce2ceb460c180abe94de1345427cc4454de1443c

  • SHA512

    e35eaac791257bf9d95cd4af52f33e45556e2d3c04ab76693db8a26093b15756ffc73fe97913c57bdb5f944c5cbed9b77e9db786066aee3e5cf352b6af2f3652

  • SSDEEP

    12288:MPiOVS8CRUqOdnziAYkAH6CbsEqJLM2XbVfEFjOjf2YLYif6TqAxuqsQcY6Z:MKwdqOBzVAH6xEqFfREE1kjTpxu9X

Malware Config

Extracted

Family

djvu

C2

http://rlrz.org/lancer/get.php

Attributes
  • extension

    .zaps

  • offline_id

    xcdIdDNFh62dy3iJsba1COhcfDENsbjPHQQ2Eht1

  • payload_url

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

    http://rlrz.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-pk3SGFlmek 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: 0341gSd743d

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\e5d75153e389e1526499f700ce2ceb460c180abe94de1345427cc4454de1443c.exe
    "C:\Users\Admin\AppData\Local\Temp\e5d75153e389e1526499f700ce2ceb460c180abe94de1345427cc4454de1443c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2308
    • C:\Users\Admin\AppData\Local\Temp\e5d75153e389e1526499f700ce2ceb460c180abe94de1345427cc4454de1443c.exe
      "C:\Users\Admin\AppData\Local\Temp\e5d75153e389e1526499f700ce2ceb460c180abe94de1345427cc4454de1443c.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2616
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\0c3e9340-8a09-410d-a82e-98da8b7d2af0" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2900
      • C:\Users\Admin\AppData\Local\Temp\e5d75153e389e1526499f700ce2ceb460c180abe94de1345427cc4454de1443c.exe
        "C:\Users\Admin\AppData\Local\Temp\e5d75153e389e1526499f700ce2ceb460c180abe94de1345427cc4454de1443c.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2232
        • C:\Users\Admin\AppData\Local\Temp\e5d75153e389e1526499f700ce2ceb460c180abe94de1345427cc4454de1443c.exe
          "C:\Users\Admin\AppData\Local\Temp\e5d75153e389e1526499f700ce2ceb460c180abe94de1345427cc4454de1443c.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2936

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

    1322fa6ebb1dc388f1d02e88c28b546e

    SHA1

    6e0b3982032d003dfe42838bc3d08c3912da5fb7

    SHA256

    ab56591feb84bc1fc9411d78848aca9af954035fed130ec6ca83e2b47e75bd01

    SHA512

    54d6827a6ea2e1fb1a5024caf959cc765d3097c14d04e7ba054631c15ab46fc4d7067a9883ec9b66d5c7d769bd6eb76dbd9035c6def390ed21343bb1d30fe497

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

    Filesize

    170B

    MD5

    610ec4e0ebac92b510e6d045edd8b6d5

    SHA1

    a4d1ba79d92d29277125fc5312dc9c923abab008

    SHA256

    32eec91e2ecfed766fed8e69a38d7e8317f9723d92e528eeed6db70dc15c937e

    SHA512

    e9a1ad652f20525b74412da319428b0f6add709d26be1bb2c1f29067e7431775a37cab7e4be3ebcebf846b2c1cb81c04df816441c0bbeb8e7c64c127923f26a7

  • C:\Users\Admin\AppData\Local\0c3e9340-8a09-410d-a82e-98da8b7d2af0\e5d75153e389e1526499f700ce2ceb460c180abe94de1345427cc4454de1443c.exe

    Filesize

    864KB

    MD5

    44026b5522fd83419b8bf53ca150a0cc

    SHA1

    3f5baaf4b5f5476590793408464f3f0610d00e89

    SHA256

    e5d75153e389e1526499f700ce2ceb460c180abe94de1345427cc4454de1443c

    SHA512

    e35eaac791257bf9d95cd4af52f33e45556e2d3c04ab76693db8a26093b15756ffc73fe97913c57bdb5f944c5cbed9b77e9db786066aee3e5cf352b6af2f3652

  • C:\Users\Admin\AppData\Local\Temp\CabEA5F.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • memory/2232-30-0x00000000002F0000-0x0000000000382000-memory.dmp

    Filesize

    584KB

  • memory/2232-36-0x0000000000400000-0x0000000000907000-memory.dmp

    Filesize

    5.0MB

  • memory/2308-1-0x0000000000250000-0x00000000002E2000-memory.dmp

    Filesize

    584KB

  • memory/2308-2-0x0000000000910000-0x0000000000A2B000-memory.dmp

    Filesize

    1.1MB

  • memory/2308-7-0x0000000000250000-0x00000000002E2000-memory.dmp

    Filesize

    584KB

  • memory/2308-0-0x0000000000250000-0x00000000002E2000-memory.dmp

    Filesize

    584KB

  • memory/2616-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2616-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2616-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2616-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2616-9-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2936-52-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2936-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2936-35-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2936-51-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2936-53-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2936-55-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2936-57-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2936-59-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2936-60-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2936-61-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB