General
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Target
tyxCV1ouryr7.bin
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Size
105KB
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Sample
210203-4hr3be23ds
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MD5
00bffd00fa0b7b0a5e923f3e2978cab3
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SHA1
5381f5f1c201316bfded47f6ec24a02888c2b629
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SHA256
e2b766a5e694e0fd5756ef168bbd5b436f1baba2e8b74c356dbd6f0e63184bdd
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SHA512
5ee53c5914631247c673f45b148c986685a24cc4ce23272e7de93aba68cfec313a08bfee49eeb33227b17bce0db5b32cd8bb38d6ce6eeb1769ace59dc133a007
Static task
static1
Behavioral task
behavioral1
Sample
tyxCV1ouryr7.bin.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
tyxCV1ouryr7.bin.exe
Resource
win10v20201028
Malware Config
Extracted
smokeloader
2020
http://naritouzina.net/
http://nukaraguasleep.net/
http://notfortuaj.net/
http://natuturalistic.net/
http://zaniolofusa.net/
http://4zavr.com/upload/
http://zynds.com/upload/
http://atvua.com/upload/
http://detse.net/upload/
http://dsdett.com/upload/
http://dtabasee.com/upload/
http://yeronogles.monster/upload/
Extracted
smokeloader
2019
http://10022020newfolder1002002131-service1002.space/
http://10022020newfolder1002002231-service1002.space/
http://10022020newfolder3100231-service1002.space/
http://10022020newfolder1002002431-service1002.space/
http://10022020newfolder1002002531-service1002.space/
http://10022020newfolder33417-01242510022020.space/
http://10022020test125831-service1002012510022020.space/
http://10022020test136831-service1002012510022020.space/
http://10022020test147831-service1002012510022020.space/
http://10022020test146831-service1002012510022020.space/
http://10022020test134831-service1002012510022020.space/
http://10022020est213531-service100201242510022020.ru/
http://10022020yes1t3481-service1002012510022020.ru/
http://10022020test13561-service1002012510022020.su/
http://10022020test14781-service1002012510022020.info/
http://10022020test13461-service1002012510022020.net/
http://10022020test15671-service1002012510022020.tech/
http://10022020test12671-service1002012510022020.online/
http://10022020utest1341-service1002012510022020.ru/
http://10022020uest71-service100201dom2510022020.ru/
http://10022020test61-service1002012510022020.website/
http://10022020test51-service1002012510022020.xyz/
http://10022020test41-service100201pro2510022020.ru/
http://10022020yest31-service100201rus2510022020.ru/
http://10022020rest21-service1002012510022020.eu/
http://10022020test11-service1002012510022020.press/
http://10022020newfolder4561-service1002012510022020.ru/
http://10022020rustest213-service1002012510022020.ru/
http://10022020test281-service1002012510022020.ru/
http://10022020test261-service1002012510022020.space/
http://10022020yomtest251-service1002012510022020.ru/
http://10022020yirtest231-service1002012510022020.ru/
Extracted
metasploit
windows/single_exec
Targets
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-
Target
tyxCV1ouryr7.bin
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Size
105KB
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MD5
00bffd00fa0b7b0a5e923f3e2978cab3
-
SHA1
5381f5f1c201316bfded47f6ec24a02888c2b629
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SHA256
e2b766a5e694e0fd5756ef168bbd5b436f1baba2e8b74c356dbd6f0e63184bdd
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SHA512
5ee53c5914631247c673f45b148c986685a24cc4ce23272e7de93aba68cfec313a08bfee49eeb33227b17bce0db5b32cd8bb38d6ce6eeb1769ace59dc133a007
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MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Nirsoft
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Creates new service(s)
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Disables Task Manager via registry modification
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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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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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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Loads dropped DLL
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Modifies file permissions
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Reads user/profile data of local email clients
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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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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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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JavaScript code in executable
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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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Enumerates physical storage devices
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Matrix ATT&CK v6
Persistence
New Service
1Modify Existing Service
1Registry Run Keys / Startup Folder
2Bootkit
1Defense Evasion
Disabling Security Tools
2Modify Registry
5Virtualization/Sandbox Evasion
1File Permissions Modification
1Install Root Certificate
1