Overview

overview

10

Static

static

10

2024-09-06...op.exe

windows7-x64

10

2024-09-06...op.exe

windows10-2004-x64

10

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
    06-09-2024 02:31

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General

  • Target

    2024-09-06_3aadaefca16a49659955ad2c8571924d_stop.exe

  • Size

    1.1MB

  • MD5

    3aadaefca16a49659955ad2c8571924d

  • SHA1

    2e3a219c70ac217cc90da192ddccf91dfa6c4a95

  • SHA256

    54843ec079381cbb8ea8840db141a92a1d6bfa44eaf7501d93202bfd1546c00a

  • SHA512

    482e165e7a8ec70296b87b8ae42060c5183cd693cfa6c9f98da160086d0698266f689ff7883c8a97180eed97c7a163e7497a568a618636c50f6a13f888652ef5

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO87WQHUq7:F0dwAYZt6C31WeTVRPOh77Uq7

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .piiq

  • offline_id

    7ucZviScWxXXYEE1znZMXmqHoguKJq5lmLcV78t1

  • payload_url

    http://astdg.org/files/penelop/updatewin1.exe

    http://astdg.org/files/penelop/updatewin2.exe

    http://astdg.org/files/penelop/updatewin.exe

    http://astdg.org/files/penelop/3.exe

    http://astdg.org/files/penelop/4.exe

    http://astdg.org/files/penelop/5.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-J9GjESeoLZ 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: 0308ewgfDd

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 1 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

    ransomwaredjvu
  • Modifies file permissions 1 TTPs 1 IoCs
    discovery
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-06_3aadaefca16a49659955ad2c8571924d_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-06_3aadaefca16a49659955ad2c8571924d_stop.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\f15eb7a3-42b1-4975-86dc-66f351e8e960" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:1664
    • C:\Users\Admin\AppData\Local\Temp\2024-09-06_3aadaefca16a49659955ad2c8571924d_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-09-06_3aadaefca16a49659955ad2c8571924d_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2768

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    1KB

    MD5

    7fb5fa1534dcf77f2125b2403b30a0ee

    SHA1

    365d96812a69ac0a4611ea4b70a3f306576cc3ea

    SHA256

    33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

    SHA512

    a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

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  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
    Filesize

    436B

    MD5

    971c514f84bba0785f80aa1c23edfd79

    SHA1

    732acea710a87530c6b08ecdf32a110d254a54c8

    SHA256

    f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

    SHA512

    43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

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

    174B

    MD5

    3378bc4d2f8e9c11b8456402d3235828

    SHA1

    295f6e44545c1d1fa86337b4147de74d8bb76b58

    SHA256

    abb05a00ce1f5721a68d2d680310c95809a924f7440d5027c4d918b117587a78

    SHA512

    034c671aabd457959cde1879c9d76885dbdcc20ded7d315acfd4bcd43a448f7798680ae35ddde7f3fb090876a26c9ab8bb7026b272123505adcd31154ded89fc

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

    170B

    MD5

    5afed2e54dc9571165638d9f180830f1

    SHA1

    0662da87e5efc884e4dd5abf82dc7a20707015cc

    SHA256

    10e0576f3d04e56a56aa080f9b8dfbf0402e9bf321182f6878fb4c9949c39f64

    SHA512

    c198fe48fba9378eb730b0c1929df3f81eaf047c819ef5acec48a3bb8af3fc6c24bffba6df3684efeca7aaa9e10719bcf0c54b9fa727c47fdc6cd17a097d69aa

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  • C:\Users\Admin\AppData\Local\Temp\CabBE11.tmp
    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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  • C:\Users\Admin\AppData\Local\f15eb7a3-42b1-4975-86dc-66f351e8e960\2024-09-06_3aadaefca16a49659955ad2c8571924d_stop.exe
    Filesize

    1.1MB

    MD5

    3aadaefca16a49659955ad2c8571924d

    SHA1

    2e3a219c70ac217cc90da192ddccf91dfa6c4a95

    SHA256

    54843ec079381cbb8ea8840db141a92a1d6bfa44eaf7501d93202bfd1546c00a

    SHA512

    482e165e7a8ec70296b87b8ae42060c5183cd693cfa6c9f98da160086d0698266f689ff7883c8a97180eed97c7a163e7497a568a618636c50f6a13f888652ef5

    Download Submit