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
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    06-09-2024 02:37

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General

  • Target

    2024-09-06_69abef387f5e6f1374228d93e99b49b2_stop.exe

  • Size

    1.1MB

  • MD5

    69abef387f5e6f1374228d93e99b49b2

  • SHA1

    a21dd5032832555af1db7500ce712b4df95b474e

  • SHA256

    e3c13b76ee87295fba416b8c5348ecd434e78b45fa6060820245711f3ea80a7d

  • SHA512

    f1bedf8f77e3b78c8cec2f2ca331587c89e54c7a68b5d6754002c66f349901cf22381228fc91beb19fa76a1c9bc02462fec40dbafde26e49d7da993d0e785fa2

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8qWQHUq7:F0dwAYZt6C31WeTVRPOhq7Uq7

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .neer

  • offline_id

    LTYv5JAYPKU9SqYbMp9sbHbkMoA4JlKc46dTaLt1

  • payload_url

    http://dgos.top/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-ggGVjyTdgD 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: 0310ewgfDd

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_69abef387f5e6f1374228d93e99b49b2_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-06_69abef387f5e6f1374228d93e99b49b2_stop.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2976
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\15958b58-0d0d-4ea0-af5d-325b514eb70f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:2736
    • C:\Users\Admin\AppData\Local\Temp\2024-09-06_69abef387f5e6f1374228d93e99b49b2_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-09-06_69abef387f5e6f1374228d93e99b49b2_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

    b0179332f115737acd0951cf8f7ddc18

    SHA1

    c34c335f107eca99d860cb347f840bde812cf54b

    SHA256

    26ca96147dc169cee194fbe3461ed8f8c463deb07d2ebfd6bb37ebfd83bf3b6c

    SHA512

    7e76d48feb28bb8769be2e44c57b0f0bce74e9ff4da29e90d69d50777e8b1da8c9b3bced01eb71d14be0aa1113045207c03c2fa0c75a0a604d27bd5752717a53

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

    170B

    MD5

    c02c01de2a09d37e760f79522512795a

    SHA1

    65413265c8353a832ea5e456a5fb455e7114c528

    SHA256

    7e0d0b6284142b0631d1a42a4babb92cc44a40235c0281c025621df6f2faf332

    SHA512

    2e468c8e5ec3301450131614ae321b2f1d44ef1390fb87c69504fbfbd4e3d68958aca99a1ab7acf30fecb20b7a0ac3612b4cfe41ca0169a5c9982fa8a1f35e75

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  • C:\Users\Admin\AppData\Local\15958b58-0d0d-4ea0-af5d-325b514eb70f\2024-09-06_69abef387f5e6f1374228d93e99b49b2_stop.exe
    Filesize

    1.1MB

    MD5

    69abef387f5e6f1374228d93e99b49b2

    SHA1

    a21dd5032832555af1db7500ce712b4df95b474e

    SHA256

    e3c13b76ee87295fba416b8c5348ecd434e78b45fa6060820245711f3ea80a7d

    SHA512

    f1bedf8f77e3b78c8cec2f2ca331587c89e54c7a68b5d6754002c66f349901cf22381228fc91beb19fa76a1c9bc02462fec40dbafde26e49d7da993d0e785fa2

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  • C:\Users\Admin\AppData\Local\Temp\CabCB4B.tmp
    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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