General
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Target
785eaa3bc1ff11f50470a846c35cae7c4389c331c8a9eaaacfdced0b46a6b650
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Size
1.9MB
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Sample
240531-fqxneaha23
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MD5
c84ab890634ffbc2ff51f707efb68cc2
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SHA1
b2afe57c4d8a68cc513239d61900992ee85a2249
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SHA256
785eaa3bc1ff11f50470a846c35cae7c4389c331c8a9eaaacfdced0b46a6b650
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SHA512
14a4bb9c3b5301c4a5e175b8268db34457a1ac648008cbe47b7b0eee7322ad4f29444e949527a92beb0de43e5f06a6ad6826158186cec2af8964432f01c8c067
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SSDEEP
49152:wR7msDJF85oDbrQSDsUghKGDIQ+PL+E2qls:Sm0F+oVD0hKGDIQeL+E2
Static task
static1
Malware Config
Extracted
amadey
4.21
0e6740
http://147.45.47.155
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install_dir
9217037dc9
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install_file
explortu.exe
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strings_key
8e894a8a4a3d0da8924003a561cfb244
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url_paths
/ku4Nor9/index.php
Extracted
amadey
4.21
49e482
http://147.45.47.70
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install_dir
1b29d73536
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install_file
axplont.exe
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strings_key
4d31dd1a190d9879c21fac6d87dc0043
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url_paths
/tr8nomy/index.php
Extracted
redline
1
185.215.113.67:40960
Extracted
risepro
147.45.47.126:58709
Targets
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Target
785eaa3bc1ff11f50470a846c35cae7c4389c331c8a9eaaacfdced0b46a6b650
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Size
1.9MB
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MD5
c84ab890634ffbc2ff51f707efb68cc2
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SHA1
b2afe57c4d8a68cc513239d61900992ee85a2249
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SHA256
785eaa3bc1ff11f50470a846c35cae7c4389c331c8a9eaaacfdced0b46a6b650
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SHA512
14a4bb9c3b5301c4a5e175b8268db34457a1ac648008cbe47b7b0eee7322ad4f29444e949527a92beb0de43e5f06a6ad6826158186cec2af8964432f01c8c067
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SSDEEP
49152:wR7msDJF85oDbrQSDsUghKGDIQ+PL+E2qls:Sm0F+oVD0hKGDIQeL+E2
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Modifies firewall policy service
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PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Blocklisted process makes network request
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Downloads MZ/PE file
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Identifies Wine through registry keys
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Loads dropped DLL
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops Chrome extension
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Defense Evasion
Impair Defenses
1Disable or Modify Tools
1Modify Registry
5Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1Virtualization/Sandbox Evasion
2