Resubmissions
10/03/2026, 16:36
260310-t4j65aew6t1023/02/2026, 13:22
260223-qmjmgsdx2e1026/08/2025, 05:48
250826-ghqqkawm1910Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
23/02/2026, 13:22
Static task
static1
Behavioral task
behavioral1
Sample
a34acd47127196ab867d572c2c6cf2fcccffa3a7a87e82d338a8efed898ca722.exe
Resource
win10v2004-20260129-en
Behavioral task
behavioral2
Sample
a34acd47127196ab867d572c2c6cf2fcccffa3a7a87e82d338a8efed898ca722.exe
Resource
win11-20260130-en
General
- Target a34acd47127196ab867d572c2c6cf2fcccffa3a7a87e82d338a8efed898ca722.exe
- Size 3.0MB
- Sample260223-qmjmgsdx2e
- SHA256 a34acd47127196ab867d572c2c6cf2fcccffa3a7a87e82d338a8efed898ca722
- MD5 a16a1228d5276eec526c21432a403923
- SHA1 da8acde6e6143f5cf63859d23c0b0249bbf18d43
- SHA512 eb6412c474fd78be419c4c909685bc2092b47d2a1cb812d26f404dcd65581c3df6643456fce2062d0df753da64b2e18263a79ba2457467a50d7e02d0e17f2ad5
- SSDEEP 49152:UqrbnJx2CSLuq1Y7Fg0AcfHrvl1KxK9KV6jDAR5kCMDigd5E:USwQ5S6jDAR5kCMDigzE
- TLSH T13DE54B13FC9669BBC0AAE23589629152BB617C492B3123D73B50F73C2F76BD06979700
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
C:\Users\Admin\Videos\recover.txt
- Dear Shelbourne Accountants Team: We're Cephalus, 100% financial motivated. We're sorry to tell you that your intranet has been compromised by us, and we have stolen confidential data from your intranet, including your confidential clients, contacts and matters etc. We've taken down your whole domain control, all your past and ongoing matters and client list are in our hands. Files on your APP-SERVER,SERVER-2016 has been taken from us, as you know , clients data and other credential files are within. Before 08/28/2025 you should contact us , the earlier you contact us , the smaller the problem will be. After that your data will be uploaded, your competitors, partners, clients, authorities, tax agenesis and lawyer would be able to access it. We will start mailing and calling your clients. Those who didn't follow our orders have already be in trouble , check your peer SSKRPLAW and other companies as you search us with "Cephalus data leak" or just simply pay a visit to our tor website: http://cephalus6oiypuwumqlwurvbmwsfglg424zjdmywfgqm4iehkqivsjyd.onion Or that will not happen, If we will close this deal in time!!! If you want the proof , the following links are filelists in your intranet : https://gofile.io/d/fixCg7 Our business depends on the reputation even more than many others. If we will take money and spread your information - we will have issues with payments in future. So, we will stick to our promises and reputation. That works in both ways: if we said that we will email all your staff and publicly spread all your data - we will. Now WE're using an officer's account to contact you , but we'll move onto other connection as the following , Here are a few ways to get in touch with us. 1. Tox:91C24CC1586713CA606047297516AF534FE57EFA8C3EA2031B7DF8D116AC751B156869CB8838 Link to download Tox: https://github.com/qTox/qTox/releases/download/v1.17.6/setup-qtox-x86_64-release.exe 2. Email:[email protected] Don't do any silly things, don't treat it lightly too. We got proofs that your data was kept with a number of data security violations of data breach laws. The penalty payments would be huge if we will anonymously sent our briefs and notes about your network structure to the regulators. Embrace it and pay us. After that your data will be erased from our systems, with proof's provided to you. Also you might request your network improvement report. Based on your position in the company call your management to speak. DO NOT try to speak speak instead of your superiors, based on our experience, that may lead to disaster. Your ID: 29a9bb2bd0eedf7b3574c380d6fa0373 Now you should contact us.
-
Email:[email protected]
-
http://cephalus6oiypuwumqlwurvbmwsfglg424zjdmywfgqm4iehkqivsjyd.onion
-
https://gofile.io/d/fixCg7
-
https://github.com/qTox/qTox/releases/download/v1.17.6/setup-qtox-x86_64-release.exe
Signatures
- Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
- Renames multiple (143) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 3428 vssadmin.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeBackupPrivilege 5484 vssvc.exe Token: SeRestorePrivilege 5484 vssvc.exe Token: SeAuditPrivilege 5484 vssvc.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2220 wrote to memory of 3428 2220 a34acd47127196ab867d572c2c6cf2fcccffa3a7a87e82d338a8efed898ca722.exe 80 - 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\a34acd47127196ab867d572c2c6cf2fcccffa3a7a87e82d338a8efed898ca722.exe"C:\Users\Admin\AppData\Local\Temp\a34acd47127196ab867d572c2c6cf2fcccffa3a7a87e82d338a8efed898ca722.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2220 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet2⤵
- Interacts with shadow copies
PID:3428
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5484
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\Videos\recover.txt
- Size 2KB
- SHA256 76fc8028e187d3813fb6ceae6cd095973dd09cb4eaa9c263e673d36b406859f4
- MD5 71b5db294c86974f4def294d1e222b36
- SHA1 322ea18d8242312f9bb9e9d44bf516a3871d8128
- SHA512 b91b65516f1a94b588b8943bad2ecb730377d8cb41050334b2c09fc7536c4271480bf36c8c6ed52c7a19a622abcd740981388e571e3850fa3c2cc87fed4b0f78
- TLSH T1CE51740FE35922620DD11285328EBDB2E721D12C272489A94CA9909C2B7EB7735735D5
- MD5 SHA1 SHA512 TLSH