Analysis

  • max time kernel
    146s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 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 9 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 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe
    "C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Users\Admin\AppData\Local\Temp\rYp.exe
      C:\Users\Admin\AppData\Local\Temp\rYp.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:588
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\2bc44d72.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1744
    • C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe
      "C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2696
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\4f1b1f7e-2026-4fba-ba66-0e952de7b293" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2392
      • C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe
        "C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1972
        • C:\Users\Admin\AppData\Local\Temp\rYp.exe
          C:\Users\Admin\AppData\Local\Temp\rYp.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2032
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\4b50402b.bat" "
            5⤵
            • System Location Discovery: System Language Discovery
            PID:1036
        • 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:2912

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

    514004fa292cf3d30c7b13ccce78e0f6

    SHA1

    34473f02a31bcd2496a62abe15d2fd42e0545e0e

    SHA256

    9ff1c54e85074e86ad46e5b929b19f849454e3506c0b69c97f8ded758bbcaff2

    SHA512

    bd34cb2a0b2b32a210df18e7db0ededaec1cc9648f4aaebdbffd8ef0723082262bfcbb7519a9ba0c8be8336b83ba014b94638339bc8d1cfb912fa227507dac21

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

    Filesize

    170B

    MD5

    28cb64e211ac54d3798338bd127c99a8

    SHA1

    6d5c9b4e43bcf9e846f238eb68f37219c3ce04d1

    SHA256

    a6d66b664952145ea6c4e5fbc06645c59b7a18c89f84144705c29c80578d8ee1

    SHA512

    a634b2c937186a103e25530d1dc3dbf94f3227f234331de07066b0c0ff1a21ecc56c1a689e338ce35a873e1f84683ef0e53717529209103f8dec0138d78ae96e

  • C:\Users\Admin\AppData\Local\4f1b1f7e-2026-4fba-ba66-0e952de7b293\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe

    Filesize

    828KB

    MD5

    de2d29373ade9c3b8b13c8ef6798ffc0

    SHA1

    0f4b8c0b9f0c9dbe972303a2072321d45ecc2ab8

    SHA256

    01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd

    SHA512

    6530b6cbee303621ae356e238dae6f800288609b58bf06028dc7784bf42ea7489c4713296b8988011970934c84a4cd562f1b44420531f1188e95f8534a2ed11c

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\WK27LCMU\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\2C761F76.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\2bc44d72.bat

    Filesize

    181B

    MD5

    6e52e076108b57bd7163b72879a9512d

    SHA1

    0519ddfd067ddd2cbc7f40ae7c7dbde22afb4e69

    SHA256

    38ee0e80c3550b272d840b6b8b23ad318182ce156da30612f90f9ac56383c09d

    SHA512

    be1431f178ec3456ffb27da5a10aa8a599cbafba14027992d6364f94d8eab86187af206a064dcefe55bbae151ae480429aa99ce0c13ec265fa55f0f329599b9c

  • C:\Users\Admin\AppData\Local\Temp\4b50402b.bat

    Filesize

    181B

    MD5

    7b0cada8bc72320d269ad5490b5bcd23

    SHA1

    0892ac75d9b7465ad0da8641ddbc8a9c89289aeb

    SHA256

    da100423b2e25d5a1f657746c5a503454394d6e7780f66f297b37fc8cd5d5401

    SHA512

    3a5dcfbf3f73501f8e0013d7cd3b70d094c4bd78089a50c2b5ffe63064bbdb03a9ba13b10c6ca1eaf73b79da2a2a1844df4787b3e413b16184b6881c97d62dcc

  • C:\Users\Admin\AppData\Local\Temp\CabEC90.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    15KB

    MD5

    f7d21de5c4e81341eccd280c11ddcc9a

    SHA1

    d4e9ef10d7685d491583c6fa93ae5d9105d815bd

    SHA256

    4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

    SHA512

    e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

  • memory/588-12-0x0000000000960000-0x0000000000969000-memory.dmp

    Filesize

    36KB

  • memory/588-52-0x0000000000960000-0x0000000000969000-memory.dmp

    Filesize

    36KB

  • memory/1972-97-0x0000000000220000-0x00000000002B2000-memory.dmp

    Filesize

    584KB

  • memory/1972-83-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/1972-74-0x0000000000400000-0x0000000000575000-memory.dmp

    Filesize

    1.5MB

  • memory/1972-82-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/1972-102-0x0000000000400000-0x0000000000575000-memory.dmp

    Filesize

    1.5MB

  • memory/1972-100-0x00000000020F0000-0x0000000002265000-memory.dmp

    Filesize

    1.5MB

  • memory/1972-103-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/2032-84-0x00000000000F0000-0x00000000000F9000-memory.dmp

    Filesize

    36KB

  • memory/2032-94-0x00000000000F0000-0x00000000000F9000-memory.dmp

    Filesize

    36KB

  • memory/2696-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2696-69-0x0000000003A10000-0x0000000003B85000-memory.dmp

    Filesize

    1.5MB

  • memory/2696-72-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2696-19-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2696-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2696-25-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2912-117-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2912-130-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2912-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2912-101-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2912-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2912-132-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2912-121-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2912-116-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2912-115-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3040-11-0x00000000001B0000-0x00000000001B9000-memory.dmp

    Filesize

    36KB

  • memory/3040-10-0x00000000001B0000-0x00000000001B9000-memory.dmp

    Filesize

    36KB

  • memory/3040-20-0x0000000001E30000-0x0000000001F4B000-memory.dmp

    Filesize

    1.1MB

  • memory/3040-9-0x0000000000400000-0x0000000000575000-memory.dmp

    Filesize

    1.5MB

  • memory/3040-16-0x0000000000580000-0x0000000000612000-memory.dmp

    Filesize

    584KB

  • memory/3040-14-0x0000000000580000-0x0000000000612000-memory.dmp

    Filesize

    584KB

  • memory/3040-22-0x00000000020D0000-0x0000000002245000-memory.dmp

    Filesize

    1.5MB

  • memory/3040-24-0x0000000000400000-0x0000000000575000-memory.dmp

    Filesize

    1.5MB