General
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Target
28ea220f0c8f906c66e1ab5657ca0260.exe
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Size
269KB
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Sample
210920-qey27sebg7
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MD5
28ea220f0c8f906c66e1ab5657ca0260
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SHA1
04d158591858f17abd9295f481c26ae7ef771e37
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SHA256
71bbaf19229855f0bfdebbe93d12b5f5fac6c0b542b5ca3b5a00d4b088ccdadc
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SHA512
aba54593ad2344b0c40e8942f1b4099c639eb443ec2a31c98813243bcc7f03fb192a879be7748d1681db889673e5e1e5d257d8256112359363daa0eacd945cb0
Static task
static1
Behavioral task
behavioral1
Sample
28ea220f0c8f906c66e1ab5657ca0260.exe
Resource
win7-en-20210916
Behavioral task
behavioral2
Sample
28ea220f0c8f906c66e1ab5657ca0260.exe
Resource
win10v20210408
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
installbv
80.85.137.89:17954
Extracted
redline
Moneymaker
185.244.217.166:56316
Targets
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Target
28ea220f0c8f906c66e1ab5657ca0260.exe
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Size
269KB
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MD5
28ea220f0c8f906c66e1ab5657ca0260
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SHA1
04d158591858f17abd9295f481c26ae7ef771e37
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SHA256
71bbaf19229855f0bfdebbe93d12b5f5fac6c0b542b5ca3b5a00d4b088ccdadc
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SHA512
aba54593ad2344b0c40e8942f1b4099c639eb443ec2a31c98813243bcc7f03fb192a879be7748d1681db889673e5e1e5d257d8256112359363daa0eacd945cb0
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MedusaLocker Payload
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Modifies WinLogon for persistence
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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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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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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Drops startup file
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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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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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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
2Scheduled Task
1Winlogon Helper DLL
1Defense Evasion
Disabling Security Tools
1File Deletion
3Install Root Certificate
1Modify Registry
6Virtualization/Sandbox Evasion
1Web Service
1