Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    25-05-2024 18:06

General

  • Target

    72cec3ab7ff8520f7f3b230d8160fdaa_JaffaCakes118.exe

  • Size

    225KB

  • MD5

    72cec3ab7ff8520f7f3b230d8160fdaa

  • SHA1

    74797eee9390b9918b06faba0f08d6c3c7ee2160

  • SHA256

    29eee4f8b088ec1cdac03a04ca834479fce9a0fdf696224c6f19d573f4e2a703

  • SHA512

    f8e742b08af2c502233e187ca1b99fff6a310beb97967f2f8e4c7065e35e5fdcd9293a1308f3eb76a733ee576e015decd1e5ba3e18b6c5b69a48504089be13c2

  • SSDEEP

    3072:ufLnfk1mn7UVGhRXR9cEF3KGx/CgO9PcsibcbQLOEpTR5w1BNH50Idt:ufL8c4VQcEwGxagiPSbIyPKQIb

Malware Config

Extracted

Path

F:\$RECYCLE.BIN\S-1-5-21-2248906074-2862704502-246302768-1000\OGTJYN-DECRYPT.txt

Ransom Note
---= GANDCRAB V5.0.2 =--- ***********************UNDER NO CIRCUMSTANCES DO NOT DELETE THIS FILE, UNTIL ALL YOUR DATA IS RECOVERED*********************** *****FAILING TO DO SO, WILL RESULT IN YOUR SYSTEM CORRUPTION, IF THERE WILL BE DECRYPTION ERRORS***** Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .OGTJYN The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. The server with your key is in a closed network TOR. You can get there by the following ways: ---------------------------------------------------------------------------------------- | 0. Download Tor browser - https://www.torproject.org/ | 1. Install Tor browser | 2. Open Tor Browser | 3. Open link in TOR browser: http://gandcrabmfe6mnef.onion/f902a6513ed0878e | 4. Follow the instructions on this page ---------------------------------------------------------------------------------------- On our page you will see instructions on payment and get the opportunity to decrypt 1 file for free. ATTENTION! IN ORDER TO PREVENT DATA DAMAGE: * DO NOT MODIFY ENCRYPTED FILES * DO NOT CHANGE DATA BELOW ---BEGIN GANDCRAB KEY--- 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 ---END GANDCRAB KEY--- ---BEGIN PC DATA--- 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 ---END PC DATA---
URLs

http://gandcrabmfe6mnef.onion/f902a6513ed0878e

Signatures

  • Gandcrab

    Gandcrab is a Trojan horse that encrypts files on a computer.

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (301) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 47 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies system certificate store 2 TTPs 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\72cec3ab7ff8520f7f3b230d8160fdaa_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\72cec3ab7ff8520f7f3b230d8160fdaa_JaffaCakes118.exe"
    1⤵
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2812
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2156

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    1KB

    MD5

    a266bb7dcc38a562631361bbf61dd11b

    SHA1

    3b1efd3a66ea28b16697394703a72ca340a05bd5

    SHA256

    df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

    SHA512

    0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

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

    Filesize

    344B

    MD5

    8c85399b583488e8c83b32e56ac00536

    SHA1

    ca864c62aef2ca7276359eca3c3e9037ee3dbe13

    SHA256

    e5889a89cc80fbee6b09db6cef5473ed1da93477237f848015e4d235db97c00b

    SHA512

    685a1ebbf398a23e9dfddd0b695d6a2cb4d0ad09f1a32e82e32dcbf45f6264075c814a78890d0482503b7d3243350df0e4051dd06116bf3100082817392d6ad0

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

    Filesize

    344B

    MD5

    2be8a805c66d2cfb52c11b69b62d824f

    SHA1

    21b092b5bb92eb7e6b541172ceefd2fd9fdc3833

    SHA256

    9a6aa8dfe87d60fea69576268b8ef527ddd3146cfef8d3dbf52986e34206a6a8

    SHA512

    f048d946838fcf9034a04996c3584767c8b34d91f8e473eb4d037b9c965be64c2955c40b6eccca19e0259b93f6284d876ebc3f4628d0a8d317722e786ee4ed50

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    242B

    MD5

    dfd1f1de0122c467e33a0cdb92d4722f

    SHA1

    784501dabf9cca278bae93763e4011993ae05ec3

    SHA256

    df113c79066aad908795d72a03f2ad35d07466dc9ff1b0cea8ed89130c2e710f

    SHA512

    6831d0f60b29d8eece59b823e341e0b5ab50209842d21666db02d9c7eee74786e756cd37c82aab2dd77ff9c7af005f86b89ac4479fa14592fdf658ae2cecd7a2

  • C:\Users\Admin\AppData\Local\Temp\CabAFE1.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\TarB19C.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • F:\$RECYCLE.BIN\S-1-5-21-2248906074-2862704502-246302768-1000\OGTJYN-DECRYPT.txt

    Filesize

    8KB

    MD5

    d4201e3a4e5c9b81a4e9a001d0d6b73d

    SHA1

    58b49025f5356bfd7563793eabbe40746f8306f3

    SHA256

    a1a3766a59369c699f6e398b77729dcf98c382329a8acee1162fbc8807ddc34a

    SHA512

    03e72638233da67e6bbf19b083ce829969f5ea40293860e113c869af1e42e30ef3e6f8785527151e5be91c0679631a539c09017a2d75d6df25ceb8dbb8ed3286

  • memory/1200-2-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/1200-794-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/1200-792-0x0000000000580000-0x0000000000680000-memory.dmp

    Filesize

    1024KB

  • memory/1200-791-0x0000000000400000-0x000000000043D000-memory.dmp

    Filesize

    244KB

  • memory/1200-1-0x0000000000580000-0x0000000000680000-memory.dmp

    Filesize

    1024KB