General
- Target 23fa195be652ef4af44a1f80ebfde631584e6ddd3b014f14af6fc4ac7605d584
- Size 418KB
- Sample240605-fgbdtafe56
- SHA256 23fa195be652ef4af44a1f80ebfde631584e6ddd3b014f14af6fc4ac7605d584
- MD5 4d263cc249f1c02d3b35ca0a1b0ba939
- SHA1 e11ca176090abdef5c918f652c68dadbf5ebef0f
- SHA512 8a5534534bdc2b5dad21e70fed81e1faf24e5104a64f274bae4a1bf3c822c57cc099cc5456c8eb7e7b2acb2c395468fc6e8cf97b4fbffb4c01698e3faed51f4d
- SSDEEP 6144:lUCcyRNHZbzMNDvRffHfOc64P6OQgQYLgi1bN9PWVKRMDFvR9+Pp+2x9bTIcszgW:nzezNffOcli5gQYUmjLYFLIIW9bT5c
- MD5 SHA1 SHA512 SSDEEP
Static task
static1
Behavioral task
behavioral1
Sample
23fa195be652ef4af44a1f80ebfde631584e6ddd3b014f14af6fc4ac7605d584.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
23fa195be652ef4af44a1f80ebfde631584e6ddd3b014f14af6fc4ac7605d584.exe
Resource
win11-20240419-en
Malware Config
Extracted
-
amadey
-
4.21
-
9a3efc
-
http://check-ftp.ru
-
install_dir
b9695770f1
-
install_file
Dctooux.exe
-
strings_key
1d3a0f2941c4060dba7f23a378474944
-
url_paths
/forum/index.php
Targets
-
- Target 23fa195be652ef4af44a1f80ebfde631584e6ddd3b014f14af6fc4ac7605d584
- Size 418KB
- SHA256 23fa195be652ef4af44a1f80ebfde631584e6ddd3b014f14af6fc4ac7605d584
- MD5 4d263cc249f1c02d3b35ca0a1b0ba939
- SHA1 e11ca176090abdef5c918f652c68dadbf5ebef0f
- SHA512 8a5534534bdc2b5dad21e70fed81e1faf24e5104a64f274bae4a1bf3c822c57cc099cc5456c8eb7e7b2acb2c395468fc6e8cf97b4fbffb4c01698e3faed51f4d
- SSDEEP 6144:lUCcyRNHZbzMNDvRffHfOc64P6OQgQYLgi1bN9PWVKRMDFvR9+Pp+2x9bTIcszgW:nzezNffOcli5gQYUmjLYFLIIW9bT5c
- MD5 SHA1 SHA512 SSDEEP
Modifies firewall policy service
PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
Modifies boot configuration data using bcdedit
Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Downloads MZ/PE file
Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Drops startup file
Executes dropped EXE
Loads dropped DLL
Unexpected DNS network traffic destination
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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.
Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
Drops file in System32 directory
Suspicious use of SetThreadContext
MITRE ATT&CK Enterprise v15
Persistence
Create or Modify System Process
1Windows Service
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1