General

  • Target

    1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070

  • Size

    2.7MB

  • Sample

    201229-7lpmvnazqx

  • MD5

    4301b4d1cb937816ffe288401d8938bf

  • SHA1

    14126bcc7b1a7ec96114fb28a74c6a4d7e008246

  • SHA256

    1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070

  • SHA512

    82b0ebf62016f0b578384858b4d88fa97c70022a6e5e67871d93da5de2777553f949d40e6968ab9755cec4b48c8e40bdbc2ef4a1bd7a2db3ce52070e12b292bd

Malware Config

Extracted

Path

C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT

Family

buran

Ransom Note
!!! ALL YOUR FILES ARE ENCRYPTED !!! All your files, documents, photos, databases and other important files are encrypted. You are not able to decrypt it by yourself! 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. To be sure we have the decryptor and it works you can send an email: kassmaster@danwin1210.me and decrypt one file for free. But this file should be of not valuable! Do you really want to restore your files? Write to email: kassmaster@danwin1210.me Reserved email: kassmaster@tutanota.com Your personal ID: 12B-487-530 Attention! * Do not rename encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
Emails

kassmaster@danwin1210.me

kassmaster@tutanota.com

Extracted

Path

C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT

Family

buran

Ransom Note
!!! ALL YOUR FILES ARE ENCRYPTED !!! All your files, documents, photos, databases and other important files are encrypted. You are not able to decrypt it by yourself! 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. To be sure we have the decryptor and it works you can send an email: kassmaster@danwin1210.me and decrypt one file for free. But this file should be of not valuable! Do you really want to restore your files? Write to email: kassmaster@danwin1210.me Reserved email: kassmaster@tutanota.com Your personal ID: 205-73C-549 Attention! * Do not rename encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
Emails

kassmaster@danwin1210.me

kassmaster@tutanota.com

Targets

    • Target

      1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070

    • Size

      2.7MB

    • MD5

      4301b4d1cb937816ffe288401d8938bf

    • SHA1

      14126bcc7b1a7ec96114fb28a74c6a4d7e008246

    • SHA256

      1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070

    • SHA512

      82b0ebf62016f0b578384858b4d88fa97c70022a6e5e67871d93da5de2777553f949d40e6968ab9755cec4b48c8e40bdbc2ef4a1bd7a2db3ce52070e12b292bd

    • Buran

      Ransomware-as-a-service based on the VegaLocker family first identified in 2019.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Executes dropped EXE

    • Deletes itself

    • Loads dropped DLL

    • Adds Run key to start application

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Deletion

2
T1107

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Command and Control

Web Service

1
T1102

Impact

Inhibit System Recovery

2
T1490

Tasks