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
    129s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    06-09-2024 02:47

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General

  • Target

    2024-09-06_bcf8e002b1b07307c4b4db8243ee854f_stop.exe

  • Size

    1.1MB

  • MD5

    bcf8e002b1b07307c4b4db8243ee854f

  • SHA1

    2513979c04b7ab3d3a77a29219a3219b1dec4949

  • SHA256

    3fce9a2c37ee6008225bd0f8d10884612472e14c28ea492eb2042360ee47dea4

  • SHA512

    d979566cd79529ae3a5667dab12cf3e94b1dc5e086b68407b9c2a474a67f4b95e5af54da8ef199bacb0cab2840b6c94c9025409cfcd004d61861b93f51452031

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8KWQHUq7:F0dwAYZt6C31WeTVRPOhK7Uq7

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://tzgl.org/fhsgtsspen6/get.php

Attributes
  • extension

    .xcmb

  • offline_id

    PN9lPPL0xn5HdNFrN1JTJ7oVcWFkXn2HzoupUzt1

  • payload_url

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

    http://tzgl.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-gtSNjaG9aa 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: 0365Odkfg

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_bcf8e002b1b07307c4b4db8243ee854f_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-06_bcf8e002b1b07307c4b4db8243ee854f_stop.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2300
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\296d0d48-66c4-4742-a119-1ef611481348" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:2708
    • C:\Users\Admin\AppData\Local\Temp\2024-09-06_bcf8e002b1b07307c4b4db8243ee854f_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-09-06_bcf8e002b1b07307c4b4db8243ee854f_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2764

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

    be4d16710e57ec344631f08875d3878d

    SHA1

    e42d516392811460a49872222020c61e24efb93b

    SHA256

    a0b626486e4e9a2552b449ff2062ad20e033b14d6724b5a20fab044f548c67cf

    SHA512

    91d1f48d0291d1092d476a6a6478bbb7b3a2fc7dec50ae033a873c3ce7c8a54e086d1254956787b23474bf19a18ca8fe3344688aacc4d2d0d58070359dc08737

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

    342B

    MD5

    e6635126845a299e32e443e0232b7c0e

    SHA1

    6f580d7b37200ce3b98bf3f5ff8ca9f8b619c782

    SHA256

    8920966b2f05736e6165f34d682b2a14e53329717df3476c73dbdfe9a4b7a6e3

    SHA512

    62c6849d0993c0d7f4dcc0dcef1eb74c0a2e6eb955c8e379d89e3d1f78b8464585df1c56eae15fe854792d2f7eae0b43f5095dabe0d76f83caf5e37500e3acfe

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

    170B

    MD5

    7514e6b40d58ddd811c818c1adeb82a2

    SHA1

    0e1a10ccdf0f3707c636dca333d2f9feb09e28fa

    SHA256

    468d16dc11f86f37b416269fcc76db4c935e6f5ac1e0f60fc25f4582b8c05416

    SHA512

    2f79ab842311e398746d8750b7e3253437a2d14d48294e9d0facd8877b15d94e4f11f6cbf122b1f973ee157bd5e41045717853345829ade8445d5cc484de5190

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  • C:\Users\Admin\AppData\Local\296d0d48-66c4-4742-a119-1ef611481348\2024-09-06_bcf8e002b1b07307c4b4db8243ee854f_stop.exe
    Filesize

    1.1MB

    MD5

    bcf8e002b1b07307c4b4db8243ee854f

    SHA1

    2513979c04b7ab3d3a77a29219a3219b1dec4949

    SHA256

    3fce9a2c37ee6008225bd0f8d10884612472e14c28ea492eb2042360ee47dea4

    SHA512

    d979566cd79529ae3a5667dab12cf3e94b1dc5e086b68407b9c2a474a67f4b95e5af54da8ef199bacb0cab2840b6c94c9025409cfcd004d61861b93f51452031

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  • C:\Users\Admin\AppData\Local\Temp\CabABD9.tmp
    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

    Download Submit