Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2024 23:21

General

  • Target

    f0689cff028781477fb7e00cb27868980453ee4770b6b20dbf35d1d0e6de66fb.exe

  • Size

    713KB

  • MD5

    e52172154ddb3ba654b6b91fdce8020e

  • SHA1

    68278fec9526ef91c1d06e5a83bced2dc13e178f

  • SHA256

    f0689cff028781477fb7e00cb27868980453ee4770b6b20dbf35d1d0e6de66fb

  • SHA512

    38c9b20cc56468026ebf6088174cd644456ea1acd5dc6a3a9fdbe328b7cb9e2f2c7ecf6ae3d3e798002a4fde3b1bcc61e696ff777071fbdd1efad24c504a6c5c

  • SSDEEP

    12288:QRr71FAmv1eFrc4JTs+OuLO2TB07mBnY4YxsOtnRt+htHI+djNFWMd7m9c0FqpHL:8PAkEFBr1O2uSi4YxsOhH+hRIrMd7I4r

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test1/get.php

Attributes
  • extension

    .gaze

  • offline_id

    jB2aJtVEWRwbJf76a6OKB8sn0BtTgNlHYUC5wLt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.com/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-sD0OUYo1Pd 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: 0710JOsie

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 16 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\f0689cff028781477fb7e00cb27868980453ee4770b6b20dbf35d1d0e6de66fb.exe
    "C:\Users\Admin\AppData\Local\Temp\f0689cff028781477fb7e00cb27868980453ee4770b6b20dbf35d1d0e6de66fb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3020
    • C:\Users\Admin\AppData\Local\Temp\f0689cff028781477fb7e00cb27868980453ee4770b6b20dbf35d1d0e6de66fb.exe
      "C:\Users\Admin\AppData\Local\Temp\f0689cff028781477fb7e00cb27868980453ee4770b6b20dbf35d1d0e6de66fb.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2768
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\ebdb0cac-831f-47fa-b20b-3821c4b8ac12" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2444
      • C:\Users\Admin\AppData\Local\Temp\f0689cff028781477fb7e00cb27868980453ee4770b6b20dbf35d1d0e6de66fb.exe
        "C:\Users\Admin\AppData\Local\Temp\f0689cff028781477fb7e00cb27868980453ee4770b6b20dbf35d1d0e6de66fb.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2628
        • C:\Users\Admin\AppData\Local\Temp\f0689cff028781477fb7e00cb27868980453ee4770b6b20dbf35d1d0e6de66fb.exe
          "C:\Users\Admin\AppData\Local\Temp\f0689cff028781477fb7e00cb27868980453ee4770b6b20dbf35d1d0e6de66fb.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2364

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

    aa7dae56d967e4592b02d27e812a12b6

    SHA1

    fb28990fb6df850bff79a0a13fc6819b000f91a6

    SHA256

    7650d8c8e78d83d90907674446ef5b643c6f81799412f92118ebff6e21df2e5e

    SHA512

    739c3fcc8f7e40100cd2154f561c0b39532bea5c54035075460db54019612ba70267738d07017b036bb409e3f3e72a77bc2fe137dc7efccdfd8ddb086b95c457

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

    Filesize

    342B

    MD5

    544e6b504092733b4441d0a51133a165

    SHA1

    1338df799b2804c3470a3105c3b3d5b7312ff466

    SHA256

    6dca59372650f9b1c002ba96a219f0d9e227ae9de4ab2e3c5d57bdc163be9301

    SHA512

    4a0f5258970e35cadd7630d1b68966d3c960999cec2858b46053f1b4fc5c7ea5f8bcd0e46785db8bd1d7a675cc3ce4628d8e5f703887efe3dd65c2d5d3c960e0

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

    Filesize

    170B

    MD5

    514d187fd451e70d2160f3741f668bb9

    SHA1

    bc6d56e1b6605d150b085a38fa5fc38ce9e10c16

    SHA256

    e9d5b25f082e037fd3b98202fa420c2413d9f6e5ebfb8d4b0412546f63d1bf36

    SHA512

    4c8aa95b504efe596b62c7cf5a519fcfb1ff61cf719473d4040a2787bba6a634ace3f17585e238f6311e4bdc6815bf99919c675a05b07e07daa463ab029971f6

  • C:\Users\Admin\AppData\Local\9919312e-6b54-4a8a-b48d-f433153819cb\build3.exe

    Filesize

    437B

    MD5

    6910426a598bc0b07dd6ca7c2faf5c22

    SHA1

    4304d65a08652b167453997e1464cc6ef034be23

    SHA256

    ebfef207462c29030b8a06068c8cbf1cfeae1304813b9cdbfa2d705b314bf692

    SHA512

    5e96757fa5daa336968aa07d5fe5525040a081a547dd6bad55bed4539ad76b3f96aabd38f461efdafa4a427963b2a3187cc40dfa60c74e6c6ddf738176381952

  • C:\Users\Admin\AppData\Local\Temp\Cab12F4.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\bowsakkdestx.txt

    Filesize

    449B

    MD5

    caa078f0348cda98328127c142e3bfed

    SHA1

    e38274d642c806a3affcca8f7e37b61f591c47e6

    SHA256

    91faeb982f34313750a83d74c5464abe4e01357d1a7ea4253973509bc0e9d219

    SHA512

    2e6a5c482b5226079c6b4bd9a706537c372a3b43962f64be6bdd281e3217f963316ef0eba38164890bdf14af6558eb26605320487f0a0c841be9bb813c2ee5d6

  • C:\Users\Admin\AppData\Local\ebdb0cac-831f-47fa-b20b-3821c4b8ac12\f0689cff028781477fb7e00cb27868980453ee4770b6b20dbf35d1d0e6de66fb.exe

    Filesize

    713KB

    MD5

    e52172154ddb3ba654b6b91fdce8020e

    SHA1

    68278fec9526ef91c1d06e5a83bced2dc13e178f

    SHA256

    f0689cff028781477fb7e00cb27868980453ee4770b6b20dbf35d1d0e6de66fb

    SHA512

    38c9b20cc56468026ebf6088174cd644456ea1acd5dc6a3a9fdbe328b7cb9e2f2c7ecf6ae3d3e798002a4fde3b1bcc61e696ff777071fbdd1efad24c504a6c5c

  • memory/2364-39-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-72-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-87-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-83-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-41-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-66-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-86-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-56-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-57-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-84-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2364-88-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2628-33-0x0000000000220000-0x00000000002B2000-memory.dmp

    Filesize

    584KB

  • memory/2628-34-0x0000000000400000-0x0000000000730000-memory.dmp

    Filesize

    3.2MB

  • memory/2628-40-0x0000000000400000-0x0000000000730000-memory.dmp

    Filesize

    3.2MB

  • memory/2628-31-0x0000000000400000-0x0000000000730000-memory.dmp

    Filesize

    3.2MB

  • memory/2768-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2768-4-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2768-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2768-32-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2768-9-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3020-2-0x0000000000340000-0x00000000003D2000-memory.dmp

    Filesize

    584KB

  • memory/3020-0-0x0000000000400000-0x0000000000730000-memory.dmp

    Filesize

    3.2MB

  • memory/3020-1-0x0000000000340000-0x00000000003D2000-memory.dmp

    Filesize

    584KB

  • memory/3020-3-0x0000000002060000-0x000000000217B000-memory.dmp

    Filesize

    1.1MB