Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04-05-2024 17:54

General

  • Target

    13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe

  • Size

    225KB

  • MD5

    13d5815ef6299270aa4e476ab0d57ba7

  • SHA1

    b039618283277b6654d0291d3296fed36685317a

  • SHA256

    9df318a17515aeed7719fb9a650c16e5adeec27d1cee888cba378f5ba6f90ac7

  • SHA512

    e61c5b85022302df0b5244ac193aaef017f92882c3b61fbc13a99578c0806ecc60735f3fb3b1aa89fed41822025b879150070e38c5761a69508f4a85d4ecf82f

  • SSDEEP

    3072:afLnfk1mn7UVGhRXR9cEF3KGx/CgO9PcsibcbQLOEpTR5w1BNH50Idt:afL8c4VQcEwGxagiPSbIyPKQIb

Malware Config

Extracted

Path

F:\$RECYCLE.BIN\S-1-5-21-3452737119-3959686427-228443150-1000\IYNJBPFPB-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: .IYNJBPFPB 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/24b1346c426c57d1 | 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--- wfKD6iudumBkmpL8IRr4U4exEVaoOXLtwDwmOrT1y1YWvOiWMx5GYaRdvZZGTpBRqnYO7mJWsbfHTGSHhh5qBJzzs9MC7736UkGSDDniUJJG8/LFF//kmGmoAZAGLo2j5/wd2UrxMJK+iqKhTkS3ArgAxrZOOOiXrbnhbWMkLHQnbYuWlMClYZxYU6SDxpopRo5r292AV1KIZBZV4APBuUHcKSIr2MWMI0O1MKIP2IpKLE2TS5wLmpQodXZhP6M/UPrO1sZzkDbgjYlAG3g8l65nVd0/CBUxKQ7KDJYrtX0vSmnFXg/ykfgtJNiwqfCnqbr85+Bi4bF2kRrB4eKn/2I2F+t1Gt9YblqFBnTtqBHREY0boCcE4oG4b6a1Y8ZyGoyp2Q2iuJRzTRoqGlPQJIAJppFrwNIoDBPOnKw+A+5ZALufjGEwg7NrKg3qxA9Kxg72Zi/pDhFJ3v3LOOar1w4ZLXRgRl+KCjmo1jngAX95mSffmizzQU1nmrIqlsew6HIMVY3pdDfwfAscdcBnP3FNhn9WQ3XC06ZCEvXtdUj8BYRMZZHjHtkOOb+cRbYP/YkqV67u7rPezID9bXZHh40zsuwXRaNtU//fbiHWvuIPXpJeJdR69BFhflKE2uFgzGnXLQQzyAtYfjv5 ---END PC DATA---
URLs

http://gandcrabmfe6mnef.onion/24b1346c426c57d1

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 (265) 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 29 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 6 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\13d5815ef6299270aa4e476ab0d57ba7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\13d5815ef6299270aa4e476ab0d57ba7_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:1396
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1644
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2168

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

    857bb4cfc137a3c4f37a739a3169064c

    SHA1

    1acfc7b9bfa2c54fa0426849cdf1c06c00f15664

    SHA256

    810da1e7125c04fcb2f1d0607ea5fc49d7686070447c0f858dd7a6c3d9dd683e

    SHA512

    fb3a3ad2b00e3f13a64cdc9cdd5fef0bc489f26fc6cca176f6730c2250c3986672b43f3087bc5714059dcff78ee3d8d8b3b84c712fe6d29a8031dd8b7ba56a56

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

    Filesize

    242B

    MD5

    a4053803944ffbce9075cfc7e4782730

    SHA1

    a6d958770ef45d343d5423d8791ccc4079bb743a

    SHA256

    e91771a949ed479e16aeabdd9705fdc1b4977759e6a7def5d56f1b2093552927

    SHA512

    d03ba97f61f4d19c1a3960a912206fd201a3ce50b6d887f34d7be9b3d7130045e4666d2da5043d7e16422b8af39524636c08016692482b034b7ba3505b14de62

  • C:\Users\Admin\AppData\Local\Temp\Cab347A.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar35F8.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • F:\$RECYCLE.BIN\S-1-5-21-3452737119-3959686427-228443150-1000\IYNJBPFPB-DECRYPT.txt

    Filesize

    8KB

    MD5

    e5f813c0b041e8c7342ad3a7c2f23e76

    SHA1

    a3f52bc79291977b00057ceea54fcb740d145da8

    SHA256

    e801eecf1d08dc013bb76253a5614eba247afc4b2bff95670b05122d8a53bf10

    SHA512

    3d0102a8c3b44d2ec6578cb97f278ae8c8f125c22b6231a224ddaebfefd875016a9e0825d98519280d990aa49bc975b44bc918ca1de88563ebdb6e1364459a11

  • memory/1396-2-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/1396-1-0x0000000000530000-0x0000000000630000-memory.dmp

    Filesize

    1024KB

  • memory/1396-716-0x0000000000400000-0x000000000043D000-memory.dmp

    Filesize

    244KB

  • memory/1396-721-0x0000000000530000-0x0000000000630000-memory.dmp

    Filesize

    1024KB

  • memory/1396-722-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB