Analysis

  • max time kernel
    145s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    26-07-2024 04:07

General

  • Target

    dcee34741b1210576a620d3e22d5945f1aea34f8d9940a0b9d098c7ebe0bd1d0.exe

  • Size

    833KB

  • MD5

    65ea6b27d5c0223105de8f753687f38e

  • SHA1

    66cdf62d3b8b97582acf28fa97eff4bb68d80866

  • SHA256

    dcee34741b1210576a620d3e22d5945f1aea34f8d9940a0b9d098c7ebe0bd1d0

  • SHA512

    ff92e8a878b5f0200e4ba42b5a98fb88a4b4ddb03fe88116eeb4e9d8a0df2711f4edd7b3e7e4ae8c5d1c9ef0fcdd590e21fee0d0e32a42d110ca2cf46db90dc3

  • SSDEEP

    24576:4lgpA7BAcIG9UDWk81NnMlgdNOS5rGJW9:exIG9rk81NOgd0S5qs9

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .mmuz

  • offline_id

    dYUDKE4rrBmSPsf8srHMsyP40jle9uyxDDCfdxt1

  • payload_url

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

    http://fuyt.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-NdDG3HIUZp 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: 0428Jsfkjn

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 16 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • 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
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dcee34741b1210576a620d3e22d5945f1aea34f8d9940a0b9d098c7ebe0bd1d0.exe
    "C:\Users\Admin\AppData\Local\Temp\dcee34741b1210576a620d3e22d5945f1aea34f8d9940a0b9d098c7ebe0bd1d0.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1124
    • C:\Users\Admin\AppData\Local\Temp\sQDjAv.exe
      C:\Users\Admin\AppData\Local\Temp\sQDjAv.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1340
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\74fa129d.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2948
    • C:\Users\Admin\AppData\Local\Temp\dcee34741b1210576a620d3e22d5945f1aea34f8d9940a0b9d098c7ebe0bd1d0.exe
      "C:\Users\Admin\AppData\Local\Temp\dcee34741b1210576a620d3e22d5945f1aea34f8d9940a0b9d098c7ebe0bd1d0.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2308
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\c07f91e3-fa12-447d-b5de-ecb5e9bade49" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2332
      • C:\Users\Admin\AppData\Local\Temp\dcee34741b1210576a620d3e22d5945f1aea34f8d9940a0b9d098c7ebe0bd1d0.exe
        "C:\Users\Admin\AppData\Local\Temp\dcee34741b1210576a620d3e22d5945f1aea34f8d9940a0b9d098c7ebe0bd1d0.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2340
        • C:\Users\Admin\AppData\Local\Temp\dcee34741b1210576a620d3e22d5945f1aea34f8d9940a0b9d098c7ebe0bd1d0.exe
          "C:\Users\Admin\AppData\Local\Temp\dcee34741b1210576a620d3e22d5945f1aea34f8d9940a0b9d098c7ebe0bd1d0.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    1KB

    MD5

    7fb5fa1534dcf77f2125b2403b30a0ee

    SHA1

    365d96812a69ac0a4611ea4b70a3f306576cc3ea

    SHA256

    33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

    SHA512

    a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

  • 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

    c18e01a910ccaf00c4041694e0bfb530

    SHA1

    1b9ffe8b3380d2ed8f741480213f4d492588c6da

    SHA256

    a291d0ea8bbe07fcf9d824713802c99daef0f6534ae219ed36d05e17fbf1c46e

    SHA512

    8fc6f80921a0098916f05699e50b284a752d9473b535ac986f6cd6bd021bc6772cb9f0134728aed6541523a942dbe77cafdca22a1c1c18d42c010919b6b07c57

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

    Filesize

    170B

    MD5

    80939248852f2dc1afe42d794e6cd36f

    SHA1

    f868266c99b779872f8b056552df148983222796

    SHA256

    6aca87e2ca4222000105f0161f4bc0a9e0251883462baeb7dec87cabf58e30fc

    SHA512

    ef4a032f950c7d564542eee1f1cdae3234c184559a74ed4f72c3d704bc45a919c6b39d3910699cef12331104fccad7f1dbc6c32361ecbf7f9fb0b3b344342b85

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\1VX38S3F\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\65A40C83.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\74fa129d.bat

    Filesize

    187B

    MD5

    3a586c037c90d5c5ebc7a0ead043b186

    SHA1

    1bcf07b37072368d25bbece3ed8605fcf179fd4e

    SHA256

    910459f9ad2d55c2995048ab07bd797bb1ecbcd1832b13615a67499ac4f39a35

    SHA512

    11ed2a024abd0d3a8e31c924b2fa88a40ccfcb3360f93de3623a438c9cae4ea8440b1302486c7fbb2f1497e8739ed8a56c40e3c67c28dea4b619974ee9691b4e

  • C:\Users\Admin\AppData\Local\Temp\CabDF76.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\c07f91e3-fa12-447d-b5de-ecb5e9bade49\dcee34741b1210576a620d3e22d5945f1aea34f8d9940a0b9d098c7ebe0bd1d0.exe

    Filesize

    833KB

    MD5

    65ea6b27d5c0223105de8f753687f38e

    SHA1

    66cdf62d3b8b97582acf28fa97eff4bb68d80866

    SHA256

    dcee34741b1210576a620d3e22d5945f1aea34f8d9940a0b9d098c7ebe0bd1d0

    SHA512

    ff92e8a878b5f0200e4ba42b5a98fb88a4b4ddb03fe88116eeb4e9d8a0df2711f4edd7b3e7e4ae8c5d1c9ef0fcdd590e21fee0d0e32a42d110ca2cf46db90dc3

  • \Users\Admin\AppData\Local\Temp\sQDjAv.exe

    Filesize

    15KB

    MD5

    f7d21de5c4e81341eccd280c11ddcc9a

    SHA1

    d4e9ef10d7685d491583c6fa93ae5d9105d815bd

    SHA256

    4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

    SHA512

    e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

  • memory/1124-15-0x00000000002A0000-0x0000000000332000-memory.dmp

    Filesize

    584KB

  • memory/1124-25-0x00000000002A0000-0x0000000000332000-memory.dmp

    Filesize

    584KB

  • memory/1124-24-0x00000000002A0000-0x00000000002A9000-memory.dmp

    Filesize

    36KB

  • memory/1124-23-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB

  • memory/1124-1-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB

  • memory/1124-21-0x00000000021B0000-0x00000000022AD000-memory.dmp

    Filesize

    1012KB

  • memory/1124-19-0x0000000001DC0000-0x0000000001EDB000-memory.dmp

    Filesize

    1.1MB

  • memory/1124-14-0x00000000002A0000-0x0000000000332000-memory.dmp

    Filesize

    584KB

  • memory/1124-4-0x00000000002A0000-0x00000000002A9000-memory.dmp

    Filesize

    36KB

  • memory/1340-10-0x0000000000DE0000-0x0000000000DE9000-memory.dmp

    Filesize

    36KB

  • memory/1340-86-0x0000000000DE0000-0x0000000000DE9000-memory.dmp

    Filesize

    36KB

  • memory/2308-26-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2308-108-0x0000000003A10000-0x0000000003B0D000-memory.dmp

    Filesize

    1012KB

  • memory/2308-64-0x0000000003A10000-0x0000000003B0D000-memory.dmp

    Filesize

    1012KB

  • memory/2308-63-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2308-60-0x0000000003A00000-0x0000000003AFD000-memory.dmp

    Filesize

    1012KB

  • memory/2308-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2308-18-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2308-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2340-88-0x0000000000570000-0x0000000000602000-memory.dmp

    Filesize

    584KB

  • memory/2340-91-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB

  • memory/2340-65-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB

  • memory/2928-92-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2928-104-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2928-106-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2928-105-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2928-111-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2928-120-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2928-122-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2928-123-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2928-124-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB