Analysis

  • max time kernel
    143s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    25-07-2024 18:27

General

  • Target

    2e47721a4fb2c1e36520d287b3251a9ea2b688de1f36541e8bc06c169c2b410a.exe

  • Size

    800KB

  • MD5

    a459c876f20b2ab552a0945256624310

  • SHA1

    0a540996512806b795b6aaa11e3eee8424a59495

  • SHA256

    2e47721a4fb2c1e36520d287b3251a9ea2b688de1f36541e8bc06c169c2b410a

  • SHA512

    8ba8b10afe964897ae523426ad859d4d5bdb99accfa6c4e1138b60691764fa7013d304ce17c2835d2c20c98e218a40585a85bd5d5b427e49329514c1fbd6373c

  • SSDEEP

    24576:FnjB/kSk7V/zmcAJXtUjr5PvWuuE6nM/:BVXt0+M6M

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes
  • extension

    .kkia

  • 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: 0425Jsfkjn

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 14 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\2e47721a4fb2c1e36520d287b3251a9ea2b688de1f36541e8bc06c169c2b410a.exe
    "C:\Users\Admin\AppData\Local\Temp\2e47721a4fb2c1e36520d287b3251a9ea2b688de1f36541e8bc06c169c2b410a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Users\Admin\AppData\Local\Temp\RxocXt.exe
      C:\Users\Admin\AppData\Local\Temp\RxocXt.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3064
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\489b460d.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1948
    • C:\Users\Admin\AppData\Local\Temp\2e47721a4fb2c1e36520d287b3251a9ea2b688de1f36541e8bc06c169c2b410a.exe
      "C:\Users\Admin\AppData\Local\Temp\2e47721a4fb2c1e36520d287b3251a9ea2b688de1f36541e8bc06c169c2b410a.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2768
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\722ab07d-4408-4d28-96c7-15f5eff8977c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:564
      • C:\Users\Admin\AppData\Local\Temp\2e47721a4fb2c1e36520d287b3251a9ea2b688de1f36541e8bc06c169c2b410a.exe
        "C:\Users\Admin\AppData\Local\Temp\2e47721a4fb2c1e36520d287b3251a9ea2b688de1f36541e8bc06c169c2b410a.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:576
        • C:\Users\Admin\AppData\Local\Temp\2e47721a4fb2c1e36520d287b3251a9ea2b688de1f36541e8bc06c169c2b410a.exe
          "C:\Users\Admin\AppData\Local\Temp\2e47721a4fb2c1e36520d287b3251a9ea2b688de1f36541e8bc06c169c2b410a.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2280

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

    b47dc1a03c0b2a8ff6c8374f698eb8c8

    SHA1

    b68f6b5a72f466667692cc305e768defbe9d2d05

    SHA256

    c86ccffd18c90faae73f378c9969c91b112b2e9ae5464a121c6a7a7d76af4734

    SHA512

    0fb3cad0c5db8484ac178a3e8887fa1629727d8edc47604c002831d3efc93b12a3a9b421770a181743cdd0c42253609b118bb1aae14f30451a2a0431ca9c0e93

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

    Filesize

    342B

    MD5

    d3993a7e65b8efe515dfa9963c30866c

    SHA1

    361768c0f38c4c39a8f42f8bc8a37cd902585e73

    SHA256

    1a3ae20121e8b562d4e5f7ac270dea977f6f521f036cb40e958a5917dce99c2b

    SHA512

    ba75aa47119b41a05f8aa1eb1a276654550476aa5e47ffbe4e8f3be3019c79abcc7794581526c4b41ac389a9bc4f703c8df0c1d5de57e53da886e9f442320299

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

    Filesize

    170B

    MD5

    81d3d314dbc677229c12a5a010534dba

    SHA1

    839960a7c22f303d1055f0542e1b91e774ea7c57

    SHA256

    66b08bb64c447ecce9de5cda2a755e0a537450f9d6725beec0c322212b72fa28

    SHA512

    92cd3d1a504e517f3b26c642da4a74e76ecdaf164c73db97248ada383ee1cfaabecd8de87229adad4bbf28f94b219ef9638221466667a4027865248ef3b86192

  • C:\Users\Admin\AppData\Local\722ab07d-4408-4d28-96c7-15f5eff8977c\2e47721a4fb2c1e36520d287b3251a9ea2b688de1f36541e8bc06c169c2b410a.exe

    Filesize

    800KB

    MD5

    a459c876f20b2ab552a0945256624310

    SHA1

    0a540996512806b795b6aaa11e3eee8424a59495

    SHA256

    2e47721a4fb2c1e36520d287b3251a9ea2b688de1f36541e8bc06c169c2b410a

    SHA512

    8ba8b10afe964897ae523426ad859d4d5bdb99accfa6c4e1138b60691764fa7013d304ce17c2835d2c20c98e218a40585a85bd5d5b427e49329514c1fbd6373c

  • C:\Users\Admin\AppData\Local\Temp\299510D7.exe

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\299510D7.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\489b460d.bat

    Filesize

    187B

    MD5

    12015b4f6fefdb58f7e88a74ad3a6e35

    SHA1

    35d7a07d2e45e01d3264ec76dfe9ecd9cc73c32d

    SHA256

    39a5ee841e30eef28ecfb7d66424643385ba476850739d58a4b7c7dde744cd87

    SHA512

    f35767f170148c81197c775dbbf5fb29968764305b6fecfe3075ad5cbd9ce0f4660a8c819e72e25ac35a41e52bd236c013ee63814494e3e5fa8dbe52dde97b62

  • C:\Users\Admin\AppData\Local\Temp\Cab59A4.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    15KB

    MD5

    f7d21de5c4e81341eccd280c11ddcc9a

    SHA1

    d4e9ef10d7685d491583c6fa93ae5d9105d815bd

    SHA256

    4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

    SHA512

    e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

  • memory/576-70-0x0000000000400000-0x00000000004F5000-memory.dmp

    Filesize

    980KB

  • memory/576-88-0x0000000001C50000-0x0000000001CE1000-memory.dmp

    Filesize

    580KB

  • memory/576-91-0x0000000000400000-0x00000000004F5000-memory.dmp

    Filesize

    980KB

  • memory/2220-20-0x0000000000360000-0x00000000003F1000-memory.dmp

    Filesize

    580KB

  • memory/2220-22-0x0000000000500000-0x000000000061B000-memory.dmp

    Filesize

    1.1MB

  • memory/2220-23-0x0000000000400000-0x00000000004F5000-memory.dmp

    Filesize

    980KB

  • memory/2220-11-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/2220-9-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/2220-1-0x0000000000400000-0x00000000004F5000-memory.dmp

    Filesize

    980KB

  • memory/2220-15-0x0000000000360000-0x00000000003F1000-memory.dmp

    Filesize

    580KB

  • memory/2280-105-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2280-106-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2280-92-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2280-124-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2280-122-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2280-123-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2280-120-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2280-111-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2280-107-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2768-25-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2768-21-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2768-66-0x0000000003A20000-0x0000000003B15000-memory.dmp

    Filesize

    980KB

  • memory/2768-69-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2768-18-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2768-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3064-12-0x0000000000A30000-0x0000000000A39000-memory.dmp

    Filesize

    36KB

  • memory/3064-86-0x0000000000A30000-0x0000000000A39000-memory.dmp

    Filesize

    36KB