Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2024 14:16

General

  • Target

    01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe

  • Size

    828KB

  • MD5

    de2d29373ade9c3b8b13c8ef6798ffc0

  • SHA1

    0f4b8c0b9f0c9dbe972303a2072321d45ecc2ab8

  • SHA256

    01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd

  • SHA512

    6530b6cbee303621ae356e238dae6f800288609b58bf06028dc7784bf42ea7489c4713296b8988011970934c84a4cd562f1b44420531f1188e95f8534a2ed11c

  • SSDEEP

    24576:H8R4J3kkCbtdsWhwgDaPWqimnOP8DeXXI:H8sd6lhwgDaPWqdDeo

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .vyia

  • offline_id

    rpx4UUTYZiAR5omq187UvM233jloVHyJUkA8s3t1

  • 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-hsmBOFHh66 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: 0413Jsfkjn

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

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 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 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe
    "C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1448
    • C:\Users\Admin\AppData\Local\Temp\rYp.exe
      C:\Users\Admin\AppData\Local\Temp\rYp.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:316
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\291435e4.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3876
    • C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe
      "C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1884
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\f5776a11-415d-43be-9ce1-b96dbdc0caa8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:4304
      • C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe
        "C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1192
        • C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe
          "C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:3404

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

    1bfe0a81db078ea084ff82fe545176fe

    SHA1

    50b116f578bd272922fa8eae94f7b02fd3b88384

    SHA256

    5ba8817f13eee00e75158bad93076ab474a068c6b52686579e0f728fda68499f

    SHA512

    37c582f3f09f8d80529608c09041295d1644bcc9de6fb8c4669b05339b0dd870f9525abc5eed53ad06a94b51441275504bc943c336c5beb63b53460ba836ca8d

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

    Filesize

    174B

    MD5

    f6d6565a8398cb6126015104b2050d6c

    SHA1

    365b3ec7a1f705e0ca9fbd23559d94827ddbd8cf

    SHA256

    ce40eff2503b46945896dfd2d460dddd94e0c2533535b84288b1e83e9e0edf9a

    SHA512

    ba87c959b1f359ad6597d99c95cc3b391242cfc8f268d4efdcf9afd11b102544f429e0c3541fa3763ea8874a2f4a784f8172ab95b805cf44dd86c50bd887f511

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

    Filesize

    170B

    MD5

    9d1d7e1892028f25ea044f3aa6e4cd81

    SHA1

    93fc5dd89932805b43a7560d028157404aeb3e0d

    SHA256

    76fd1932fa65ce69ae2b920e6758d5e1e6f311d7bc1dedfa216ce26612d83745

    SHA512

    c6ce04b1929bff50da10aee2bdc8a9ba6ef932f47a65494fce34873329a63d05740bf2a736ed3ae0470411f6f33c5a106a95ff89e891faf5e7abee172a664bad

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\MQYRE6E5\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\291435e4.bat

    Filesize

    181B

    MD5

    ba0904edb0e93c0595e5045dc2be9e01

    SHA1

    3cede7534ac28a3dfbc663bae07d10b96400e1da

    SHA256

    acbb25a089a6894a245bf45fca649c90f3754c53f7374896336c29d10f9e12fe

    SHA512

    62dac4fc0f3efcea9d66e50846f112d7f72a1ffa9bc7f5a5d32ded5e2ff0c18b39815de89902acc5e541cf78e2e000c3127e7229fdb329b6831681448764b422

  • C:\Users\Admin\AppData\Local\Temp\6A1E62A6.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\rYp.exe

    Filesize

    15KB

    MD5

    f7d21de5c4e81341eccd280c11ddcc9a

    SHA1

    d4e9ef10d7685d491583c6fa93ae5d9105d815bd

    SHA256

    4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

    SHA512

    e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

  • C:\Users\Admin\AppData\Local\f5776a11-415d-43be-9ce1-b96dbdc0caa8\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe

    Filesize

    828KB

    MD5

    de2d29373ade9c3b8b13c8ef6798ffc0

    SHA1

    0f4b8c0b9f0c9dbe972303a2072321d45ecc2ab8

    SHA256

    01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd

    SHA512

    6530b6cbee303621ae356e238dae6f800288609b58bf06028dc7784bf42ea7489c4713296b8988011970934c84a4cd562f1b44420531f1188e95f8534a2ed11c

  • memory/316-4-0x0000000000D80000-0x0000000000D89000-memory.dmp

    Filesize

    36KB

  • memory/316-73-0x0000000000D80000-0x0000000000D89000-memory.dmp

    Filesize

    36KB

  • memory/1192-59-0x0000000000400000-0x0000000000575000-memory.dmp

    Filesize

    1.5MB

  • memory/1192-76-0x0000000000400000-0x0000000000575000-memory.dmp

    Filesize

    1.5MB

  • memory/1192-78-0x0000000000400000-0x0000000000575000-memory.dmp

    Filesize

    1.5MB

  • memory/1448-36-0x0000000000400000-0x0000000000575000-memory.dmp

    Filesize

    1.5MB

  • memory/1448-0-0x0000000000400000-0x0000000000575000-memory.dmp

    Filesize

    1.5MB

  • memory/1448-16-0x0000000002280000-0x000000000239B000-memory.dmp

    Filesize

    1.1MB

  • memory/1448-15-0x00000000021E0000-0x0000000002279000-memory.dmp

    Filesize

    612KB

  • memory/1884-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1884-60-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1884-57-0x0000000000540000-0x0000000000609000-memory.dmp

    Filesize

    804KB

  • memory/1884-27-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1884-17-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1884-26-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3404-77-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3404-83-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3404-84-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3404-85-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3404-89-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3404-98-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3404-101-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3404-100-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3404-102-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3404-103-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB