General
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Target
0x000400000001b711-2723.exe
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Size
286KB
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Sample
201125-9877esbt9s
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MD5
75ea3fd13086e51a3e2833263dc726cd
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SHA1
9f27dc43612b0d5a7d4dbef527b4dbd042957e57
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SHA256
43929c8548157f399526e8318e42e34f78055b22bb4b3e6e83ab58f63d017f44
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SHA512
54941d724da104089b48af4eeb0b4491868d2910044fc29362f6093160f640941739922fc02fcd831a8885584125497023543f482b87add6f0f343e7f67e3b9f
Static task
static1
Behavioral task
behavioral1
Sample
0x000400000001b711-2723.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
0x000400000001b711-2723.exe
Resource
win10v20201028
Malware Config
Extracted
smokeloader
2020
http://naritouzina.net/
http://nukaraguasleep.net/
http://notfortuaj.net/
http://natuturalistic.net/
http://zaniolofusa.net/
http://vintrsi.com/upload/
http://woatdert.com/upload/
http://waruse.com/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/
Targets
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Target
0x000400000001b711-2723.exe
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Size
286KB
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MD5
75ea3fd13086e51a3e2833263dc726cd
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SHA1
9f27dc43612b0d5a7d4dbef527b4dbd042957e57
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SHA256
43929c8548157f399526e8318e42e34f78055b22bb4b3e6e83ab58f63d017f44
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SHA512
54941d724da104089b48af4eeb0b4491868d2910044fc29362f6093160f640941739922fc02fcd831a8885584125497023543f482b87add6f0f343e7f67e3b9f
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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Creates new service(s)
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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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Deletes itself
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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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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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Drops file in System32 directory
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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
2Defense Evasion
Disabling Security Tools
1Modify Registry
4File Permissions Modification
1Install Root Certificate
1