General

  • Target

    db2884a9012cf6e8ea5b3fabb0d02a9487eb412e75085b37188d5e8f4ada7ca9

  • Size

    191KB

  • Sample

    220128-wkyxaahhcn

  • MD5

    5bc5696a899074cb3623aa640602c8ad

  • SHA1

    792d0ef1d01d80426aabc2c8bbeb680690d94798

  • SHA256

    db2884a9012cf6e8ea5b3fabb0d02a9487eb412e75085b37188d5e8f4ada7ca9

  • SHA512

    7574237d9495c0cf056b67fb7efa61d426f383976e8fb73b2370835fd1ed63a85d0061c24ee16472bb973acd7cbbb690638b07bb20057774ace0e13b4f87e221

Malware Config

Extracted

Path

C:\KRAB-DECRYPT.txt

Ransom Note
---= GANDCRAB V4 =--- Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .KRAB 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/cb99ace73fd0ad8 | 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--- wfKD6iudumBkmpL8IRr4U4exEVaoOXLtwDwmOrT1y1YWvOiWMx5GYaRdvZZGToRRtXYY7nBWqLfMTHCHhh5qBJzzs9MC7736UkGSDDniUJJG8/LFF//kmGmoAZAGLo2j5/wd2UrxMJK+iqKhTkS3ArgAxrZOOOiXrbnhbWMkLHQnbYuWlMClYZxYU6SDxpopRo5r292AV1KIZBZV4APBuUHcKSIr2MWMI0O1MKIP2IpKLE2TS5wLmpQodXZhP6M/UPrO1sZzkDbgjYlAG3g8l65nVd0/CBUxKQ7KDJYrtX0vSmnFXg/ykfgtJNiwqfCnqbr85+BisLEgkUHB6eL1/zU2ROshGthYOlrXBift/BGCEdEbtydK4o24b6bsY7hyY4zV2QKiqZRuTRsqAVO9JIUJp5FtwNQoBRPKnKw+CO5XALafi2Epg65rLQ3qxA5KyA70ZizpABFF3vTLNeat1xAZaHRCRliKfznQ1kfgN39ImRrf9yyrQR1nkLIqlsaw7HIYVcjpKTe2fFccJcA8PyhNj39SQ2/C2KZUErLtf0jsBdBMMpGrHpcOL7+fRYUP+Ik= ---END PC DATA---
URLs

http://gandcrabmfe6mnef.onion/cb99ace73fd0ad8

Extracted

Path

C:\KRAB-DECRYPT.txt

Ransom Note
---= GANDCRAB V4 =--- Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .KRAB 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/11c2f5583dfdc5fb | 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/11c2f5583dfdc5fb

Targets

    • Target

      db2884a9012cf6e8ea5b3fabb0d02a9487eb412e75085b37188d5e8f4ada7ca9

    • Size

      191KB

    • MD5

      5bc5696a899074cb3623aa640602c8ad

    • SHA1

      792d0ef1d01d80426aabc2c8bbeb680690d94798

    • SHA256

      db2884a9012cf6e8ea5b3fabb0d02a9487eb412e75085b37188d5e8f4ada7ca9

    • SHA512

      7574237d9495c0cf056b67fb7efa61d426f383976e8fb73b2370835fd1ed63a85d0061c24ee16472bb973acd7cbbb690638b07bb20057774ace0e13b4f87e221

    • Gandcrab

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

    • suricata: ET MALWARE [eSentire] Win32/GandCrab v4/5 Ransomware CnC Activity

      suricata: ET MALWARE [eSentire] Win32/GandCrab v4/5 Ransomware CnC Activity

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Drops startup file

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Enumerates connected drives

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

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

File Deletion

1
T1107

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

3
T1082

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

1
T1490

Tasks