Analysis

  • max time kernel
    141s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05-05-2024 23:48

General

  • Target

    19c485d92b711e24d774a170f982331c_JaffaCakes118.exe

  • Size

    225KB

  • MD5

    19c485d92b711e24d774a170f982331c

  • SHA1

    72ffe40296b895d577ac89813167688828ac34b2

  • SHA256

    55b01345de106c7e566275854f2b4be144e662c809ba5502aaa361139c62ad95

  • SHA512

    28a8268ec616e8632ffd9c0080d59b0f03050310b8e6279376cff55583c51b0cb57bf8a11c4ab7662b98532c5deac7e584d1f5aa6b686c3ada3c008713101faf

  • SSDEEP

    3072:9fLnfk1mn7UVGhRXR9cEF3KGx/CgO9PcsibcbQLOEpTR5w1BNH50Idt:9fL8c4VQcEwGxagiPSbIyPKQIb

Malware Config

Extracted

Path

F:\$RECYCLE.BIN\S-1-5-21-1298544033-3225604241-2703760938-1000\LSFEYA-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: .LSFEYA 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/b16cfea7d3409bd1 | 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/b16cfea7d3409bd1

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 (289) 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 36 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\19c485d92b711e24d774a170f982331c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\19c485d92b711e24d774a170f982331c_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:2012
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:652
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1924

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

    5661c40d6fb3f5be733b07b70679114d

    SHA1

    25ddc2f2064dee2e9c336d3cb34ad813efff4c31

    SHA256

    23a051e656ba322210b494c341ba9ca5ae059e06184270f81c0b3393dbce69b0

    SHA512

    f2cbf29d24fd7948e07963c90a433f0207e16e7cd339bad663be3c0203a227a2c55ed2349d61338548e7785f07854dcd9916c02d3034d6ca5128a96435ff3793

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

    Filesize

    344B

    MD5

    53d6b26fdabad793c7aef4aa0c6bd5a6

    SHA1

    ef7eae37c36403b7b7e2d865733664f043826ed3

    SHA256

    a697609a0109a534b3f15dc4fbae0738e5afe2eadeba79b9c8849dd14875f31c

    SHA512

    720e344cc7e7ef6ab3731d2e743721e2da6d5220bd55f10484b2aec849e73b5a8934c5884bf652dfcce5e7c2a7111eb07fbd05c5aed8bb6fb10bd8282c58bc78

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

    Filesize

    344B

    MD5

    c12c1f0b81450f786239064c7c9aa49e

    SHA1

    454f931a34d03aa74596f82f8089650c10d28ad4

    SHA256

    d5dbd244e5837adca1bb70dd7f23df512f354e8e24fa76beec1bec0cd719e603

    SHA512

    246c807a75fabd04cab57935d6b7d07855338a304c16398928e403ba8fe83265f36c055a409a7360ee616d4b359428a08b15281581f2ca6c1fc3844fab0b97a6

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

    Filesize

    242B

    MD5

    e1e5e2cc06d99568928eb45eb1bc92a9

    SHA1

    ebd3d2107cdf63541847ac7b8e234b38b71e4257

    SHA256

    35245550f2c78b14938c4303fc3bec9ddc50cd74830af1a2557470d65658fdc4

    SHA512

    4f5a5919dfd0c3d799eaed8f4d83b5cba09306e64d399c5a11c89a355c8ee5c45e51d32b735eeba758032d73f709a39605f8b6ecf30942319ebe4ecee01678b2

  • C:\Users\Admin\AppData\Local\Temp\CabEEA5.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\TarF09F.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • F:\$RECYCLE.BIN\S-1-5-21-1298544033-3225604241-2703760938-1000\LSFEYA-DECRYPT.txt

    Filesize

    8KB

    MD5

    8c80a784aa61ac8edc2197342f9e897b

    SHA1

    ef228d9aa5dffe3f75f7a62cff3e54eda40be235

    SHA256

    ae4060f6411315e2047ea6a0cc1a2ddebf919c83cfa49315358ccbb89e0b23d2

    SHA512

    824ac4660c0a75221d1a4ba4127bae961eef45026f2ac59f16bbb3250069b8024a8676410261ff32097716a53542eab397cad3dfd0741a25c26281f1e0c2a193

  • memory/2012-2-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2012-770-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2012-768-0x00000000005B0000-0x00000000006B0000-memory.dmp

    Filesize

    1024KB

  • memory/2012-767-0x0000000000400000-0x000000000043D000-memory.dmp

    Filesize

    244KB

  • memory/2012-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

    Filesize

    1024KB