General

  • Target

    serenb.exe

  • Size

    3.4MB

  • Sample

    211124-rt6ahachej

  • MD5

    177417be748814f6168171a42545f9dd

  • SHA1

    9c8b988e66e0fe6f9dab69b1055e4ee200531094

  • SHA256

    47dbb2594cd5eb7015ef08b7fb803cd5adc1a1fbe4849dc847c0940f1ccace35

  • SHA512

    c90eebbd4663ffe4bec089e21e4f7c1a1441e21a2f78cc190b9ce85fd048bf46901aa74273695df7b6434887284a26d4fdaaf657cb5d9c5469574158adc351c2

Malware Config

Extracted

Path

C:\Djfk_HOW_TO_DECRYPT.txt

Family

hive

Ransom Note
Your network has been breached and all data were encrypted. Personal data, financial reports and important documents are ready to disclose. To decrypt all the data and to prevent exfiltrated files to be disclosed at http://hiveleakdbtnp76ulyhi52eag6c6tyc3xw7ez7iqy6wc34gd2nekazyd.onion/ you will need to purchase our decryption software. Please contact our sales department at: http://hivecust6vhekztbqgdnkks64ucehqacge3dij3gyrrpdp57zoq3ooqd.onion/ Login: 8cqCy3hpBgcC Password: CVDT3LgEQvzteorqmxav To get an access to .onion websites download and install Tor Browser at: https://www.torproject.org/ (Tor Browser is not related to us) Follow the guidelines below to avoid losing your data: - Do not modify, rename or delete *.key.snwkz files. Your data will be undecryptable. - Do not modify or rename encrypted files. You will lose them. - Do not report to the Police, FBI, etc. They don't care about your business. They simply won't allow you to pay. As a result you will lose everything. - Do not hire a recovery company. They can't decrypt without the key. They also don't care about your business. They believe that they are good negotiators, but it is not. They usually fail. So speak for yourself. - Do not reject to purchase. Exfiltrated files will be publicly disclosed.
URLs

http://hiveleakdbtnp76ulyhi52eag6c6tyc3xw7ez7iqy6wc34gd2nekazyd.onion/

http://hivecust6vhekztbqgdnkks64ucehqacge3dij3gyrrpdp57zoq3ooqd.onion/

Targets

    • Target

      serenb.exe

    • Size

      3.4MB

    • MD5

      177417be748814f6168171a42545f9dd

    • SHA1

      9c8b988e66e0fe6f9dab69b1055e4ee200531094

    • SHA256

      47dbb2594cd5eb7015ef08b7fb803cd5adc1a1fbe4849dc847c0940f1ccace35

    • SHA512

      c90eebbd4663ffe4bec089e21e4f7c1a1441e21a2f78cc190b9ce85fd048bf46901aa74273695df7b6434887284a26d4fdaaf657cb5d9c5469574158adc351c2

    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

    • Hive

      A ransomware written in Golang first seen in June 2021.

    • Modifies Windows Defender Real-time Protection settings

    • Modifies security service

    • Clears Windows event logs

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Reads user/profile data of web browsers

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

MITRE ATT&CK Matrix ATT&CK v6

Execution

Command-Line Interface

1
T1059

Persistence

Modify Existing Service

2
T1031

Defense Evasion

Impair Defenses

1
T1562

Modify Registry

2
T1112

Disabling Security Tools

1
T1089

Indicator Removal on Host

1
T1070

File Deletion

2
T1107

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

3
T1490

Tasks