General
- Target RollbackDolby-v1.2.0.81-20260626.rar
- Size 5.8MB
- Sample260919-pkgjns1sax
- SHA256 1002b1af8d44a395083e97ce9b1c5b4023c7523cfda85804c207fd6c92d779de
- MD5 6ee1baa128b387c0f87ccd44a3e7789a
- SHA1 2de10772f6f7ac78ad50ff004bdacf435ac31052
- SHA512 14afbecda190b508e487fb4d69d346d30776346caf7cfe8f8903bae278a8b48864b80b88f6b72a5943fe2dd419c2c9a59d9b65ed4a243965fc702830cdf56499
- SSDEEP 98304:q/THK7kDOqoJhJOvtnbOrAvgVDd4+K7mUf6pqNZ0naS/PqUSz4nsw99jVd7roq4S:aK7kDoJQtbOrdVDm5TqqN2naS/PqUSzK
- TLSH T1025633BF391A001967ACC1BC4B566ADE9D0839FFA1C4FB577902A2D5A14B37101FB94C
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
RollbackDolby-v1.2.0.81-20260626.rar
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
RollbackDolby-v1.2.0.81-20260626.rar
Resource
win11ltsc2024-20260911-en
Behavioral task
behavioral3
Sample
RollbackDolby.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral4
Sample
RollbackDolby.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Targets
-
- Target RollbackDolby-v1.2.0.81-20260626.rar
- Size 5.8MB
- SHA256 1002b1af8d44a395083e97ce9b1c5b4023c7523cfda85804c207fd6c92d779de
- MD5 6ee1baa128b387c0f87ccd44a3e7789a
- SHA1 2de10772f6f7ac78ad50ff004bdacf435ac31052
- SHA512 14afbecda190b508e487fb4d69d346d30776346caf7cfe8f8903bae278a8b48864b80b88f6b72a5943fe2dd419c2c9a59d9b65ed4a243965fc702830cdf56499
- SSDEEP 98304:q/THK7kDOqoJhJOvtnbOrAvgVDd4+K7mUf6pqNZ0naS/PqUSz4nsw99jVd7roq4S:aK7kDoJQtbOrdVDm5TqqN2naS/PqUSzK
- TLSH T1025633BF391A001967ACC1BC4B566ADE9D0839FFA1C4FB577902A2D5A14B37101FB94C
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Contacts a large (582) amount of remote hosts
This may indicate a network scan to discover remotely running services.
-
Downloads MZ/PE file
-
Modifies Windows Firewall
-
Possible privilege escalation attempt
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Loads dropped DLL
-
Modifies file permissions
-
Adds Run key to start application
-
Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
-
Drops desktop.ini file(s)
-
Executes a VBScript file via the Windows Script Host.
-
- Target RollbackDolby.exe
- Size 7.4MB
- SHA256 45cbc4c70c22d67f12a648a1e23f2026e6b3e21bfdb824765fbb3ec69c5cd7b3
- MD5 516e1641075437f7612226e0aace5b06
- SHA1 9d1a7d13f37271bb7697fdd9afdf26c233759a1b
- SHA512 ba2f2c8f6f5f79e3a54a5a32a89ade7112919b76f35a52d4cddaa2e3240810c5afc0da6b998532da474b915d3acdf61912801e569a2e107b6219ca785e22cfac
- SSDEEP 196608:V26oiVEmXl+mJTBXgk0UvKklH+t3CyKcmnhr2gm:V2nia6vppgk0UvKv3CHcmnAgm
- TLSH T12A762335C64018B2C53B3531327A8615E15A5E032A2ABB5F1729F2583C763C2EFB5FE6
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2Visual Basic
1Windows Command Shell
1Persistence
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
File and Directory Permissions Modification
1Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
5Subvert Trust Controls
2Install Root Certificate
2Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1