Analysis

  • max time kernel
    144s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    25-07-2024 15:05

General

  • Target

    07e7dd3b968a15e42c67a728a9d143533d66af00ab9003961086c8c2ee3670f2.exe

  • Size

    793KB

  • MD5

    4bf68315a0694544cfc078002c44d8fe

  • SHA1

    19c4a3e641c8fff8cb15b2468c01cb1cec2eafbc

  • SHA256

    07e7dd3b968a15e42c67a728a9d143533d66af00ab9003961086c8c2ee3670f2

  • SHA512

    e6ba20389ef3ee6fba7ba6d5cbe6c371933fa91a6c7c529de8dcaed89201f734a7d3e7bf3b7bdd0599327fa539db56a90134a813c5f98be3fc2cb7ed3680f0b2

  • SSDEEP

    12288:ILN0eHFcbKfY/cFQJSaxlY4jFwmkMTq52qRwUrWcCSX8mXtOuQmFJ29:9eFq+nGJZxlY4jqTMngnWcCSM8lQmq9

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 15 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\07e7dd3b968a15e42c67a728a9d143533d66af00ab9003961086c8c2ee3670f2.exe
    "C:\Users\Admin\AppData\Local\Temp\07e7dd3b968a15e42c67a728a9d143533d66af00ab9003961086c8c2ee3670f2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2688
    • C:\Users\Admin\AppData\Local\Temp\EEDJzv.exe
      C:\Users\Admin\AppData\Local\Temp\EEDJzv.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2184
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\0c925d2a.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1716
    • C:\Users\Admin\AppData\Local\Temp\07e7dd3b968a15e42c67a728a9d143533d66af00ab9003961086c8c2ee3670f2.exe
      "C:\Users\Admin\AppData\Local\Temp\07e7dd3b968a15e42c67a728a9d143533d66af00ab9003961086c8c2ee3670f2.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3048
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\6d98a1b2-37e2-4d96-a357-e28ffb3190fc" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2776
      • C:\Users\Admin\AppData\Local\Temp\07e7dd3b968a15e42c67a728a9d143533d66af00ab9003961086c8c2ee3670f2.exe
        "C:\Users\Admin\AppData\Local\Temp\07e7dd3b968a15e42c67a728a9d143533d66af00ab9003961086c8c2ee3670f2.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2664
        • C:\Users\Admin\AppData\Local\Temp\07e7dd3b968a15e42c67a728a9d143533d66af00ab9003961086c8c2ee3670f2.exe
          "C:\Users\Admin\AppData\Local\Temp\07e7dd3b968a15e42c67a728a9d143533d66af00ab9003961086c8c2ee3670f2.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:3016

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

    92d70847a9ca2f86f83c28d42e20c7bf

    SHA1

    0a9bc607d966a3eefd9bbfaacb612562e8e6861a

    SHA256

    816c69f42acfaf64109b1bda30da5967fad78d8be56a9b40e048e6f6e98faa41

    SHA512

    57e14c3d966544b281ffab8b182239004e9320376288d9ed538b0a5e330495976a1975f01e9a4e00cb87917dac2407c046af1536ccfc6a440f4f88b4ba0ad244

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

    Filesize

    170B

    MD5

    aee0be28e25ada5514c1b736be4b4374

    SHA1

    bf2804741248951663555d69db0e03cadc8e99a5

    SHA256

    bbe4b16e45cb0d145fe77f6345b154ca33232ceec0c678aeccd1c44e0397ff09

    SHA512

    0da95b15615ce6a543667c6ecfe7e28c97ccaaf3269d18c9c1c04a868e88f1e737c8d14de8e6d386a5484da5d6a8c1cd85a68616a16891e41367a42b556e82fb

  • C:\Users\Admin\AppData\Local\6d98a1b2-37e2-4d96-a357-e28ffb3190fc\07e7dd3b968a15e42c67a728a9d143533d66af00ab9003961086c8c2ee3670f2.exe

    Filesize

    793KB

    MD5

    4bf68315a0694544cfc078002c44d8fe

    SHA1

    19c4a3e641c8fff8cb15b2468c01cb1cec2eafbc

    SHA256

    07e7dd3b968a15e42c67a728a9d143533d66af00ab9003961086c8c2ee3670f2

    SHA512

    e6ba20389ef3ee6fba7ba6d5cbe6c371933fa91a6c7c529de8dcaed89201f734a7d3e7bf3b7bdd0599327fa539db56a90134a813c5f98be3fc2cb7ed3680f0b2

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\NT8UAXPK\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\033C0B19.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\0c925d2a.bat

    Filesize

    187B

    MD5

    460de7efe39c51fe9a33d487c8a02589

    SHA1

    4045b584fd75632ce4b43565615e8140f32ef070

    SHA256

    7959d643e082ba26e595042fe19e06dd5aec83a0076b4391f9397975d244a919

    SHA512

    78a9b447b9c187fa69d4a8f4abc2182d871f87ceb9ca3d167f007fc67dd6be3e27cb8d8795981b4dc69bd421d129953639f885fae977dbbc60f49175f319d1a5

  • C:\Users\Admin\AppData\Local\Temp\CabCBA8.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    15KB

    MD5

    f7d21de5c4e81341eccd280c11ddcc9a

    SHA1

    d4e9ef10d7685d491583c6fa93ae5d9105d815bd

    SHA256

    4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

    SHA512

    e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

  • memory/2184-11-0x00000000002E0000-0x00000000002E9000-memory.dmp

    Filesize

    36KB

  • memory/2184-98-0x00000000002E0000-0x00000000002E9000-memory.dmp

    Filesize

    36KB

  • memory/2664-59-0x0000000000220000-0x00000000002B2000-memory.dmp

    Filesize

    584KB

  • memory/2664-60-0x0000000000400000-0x00000000004F2000-memory.dmp

    Filesize

    968KB

  • memory/2664-64-0x0000000000400000-0x00000000004F2000-memory.dmp

    Filesize

    968KB

  • memory/2664-52-0x0000000000400000-0x00000000004F2000-memory.dmp

    Filesize

    968KB

  • memory/2688-19-0x00000000002B0000-0x0000000000342000-memory.dmp

    Filesize

    584KB

  • memory/2688-14-0x00000000002B0000-0x0000000000342000-memory.dmp

    Filesize

    584KB

  • memory/2688-10-0x00000000002E0000-0x00000000002E9000-memory.dmp

    Filesize

    36KB

  • memory/2688-24-0x00000000020B0000-0x00000000021A2000-memory.dmp

    Filesize

    968KB

  • memory/2688-7-0x0000000000400000-0x00000000004F2000-memory.dmp

    Filesize

    968KB

  • memory/2688-23-0x0000000000400000-0x00000000004F2000-memory.dmp

    Filesize

    968KB

  • memory/2688-9-0x00000000002E0000-0x00000000002E9000-memory.dmp

    Filesize

    36KB

  • memory/2688-22-0x00000000002E0000-0x00000000002E9000-memory.dmp

    Filesize

    36KB

  • memory/2688-21-0x0000000001DD0000-0x0000000001EEB000-memory.dmp

    Filesize

    1.1MB

  • memory/3016-89-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3016-100-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3016-116-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3016-114-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3016-115-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3016-63-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3016-112-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3016-88-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3016-109-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3048-26-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3048-18-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3048-101-0x0000000003A30000-0x0000000003B22000-memory.dmp

    Filesize

    968KB

  • memory/3048-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3048-25-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3048-48-0x0000000003A30000-0x0000000003B22000-memory.dmp

    Filesize

    968KB

  • memory/3048-51-0x0000000003A30000-0x0000000003B22000-memory.dmp

    Filesize

    968KB

  • memory/3048-49-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB