General
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Target
1e0e3879e487148a78b2e291389f4d4267ec043af2df0797d6c68a96525aa4ff
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Size
215KB
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Sample
210921-ajz73affd4
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MD5
59c9d0e1d3cc76c8f93017de90802ec8
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SHA1
75e3d8c45c778b540e2cad15168ad6053b1c3b95
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SHA256
1e0e3879e487148a78b2e291389f4d4267ec043af2df0797d6c68a96525aa4ff
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SHA512
1a9f63009d94fad0a20bc6023f706a07ca9b075033d4b24c050268717c9e430c127c71ab135d3f64a008db4eca48a2174a70ffb4a28972f3b5ee462970bf23ee
Static task
static1
Behavioral task
behavioral1
Sample
1e0e3879e487148a78b2e291389f4d4267ec043af2df0797d6c68a96525aa4ff.exe
Resource
win10-en-20210920
Malware Config
Extracted
smokeloader
2020
http://venerynnet1.top/
http://kevonahira2.top/
http://vegangelist3.top/
http://kingriffaele4.top/
http://arakeishant5.top/
Extracted
redline
installEXE
146.70.35.170:30905
Extracted
redline
khrip1k
91.142.77.155:5469
Targets
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Target
1e0e3879e487148a78b2e291389f4d4267ec043af2df0797d6c68a96525aa4ff
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Size
215KB
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MD5
59c9d0e1d3cc76c8f93017de90802ec8
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SHA1
75e3d8c45c778b540e2cad15168ad6053b1c3b95
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SHA256
1e0e3879e487148a78b2e291389f4d4267ec043af2df0797d6c68a96525aa4ff
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SHA512
1a9f63009d94fad0a20bc6023f706a07ca9b075033d4b24c050268717c9e430c127c71ab135d3f64a008db4eca48a2174a70ffb4a28972f3b5ee462970bf23ee
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MedusaLocker Payload
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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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Modifies boot configuration data using bcdedit
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XMRig Miner Payload
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Creates new service(s)
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Downloads MZ/PE file
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Drops file in Drivers directory
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Executes dropped EXE
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Modifies Windows Firewall
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Modifies extensions of user files
Ransomware generally changes the extension on encrypted files.
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Sets service image path in registry
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Deletes itself
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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 desktop.ini file(s)
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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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 v6
Persistence
Modify Existing Service
1New Service
1Registry Run Keys / Startup Folder
2Defense Evasion
Disabling Security Tools
1File Deletion
3Modify Registry
4Virtualization/Sandbox Evasion
1