General
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Target
f2869ebe5907fcd422205a3b7de71542ff653c6cb0a691de7ee2fec905f1881c
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Size
483KB
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Sample
220521-caj6ladec5
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MD5
6184fc615fc38edc39b1341e069ee877
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SHA1
03b542b31bd9f571fd32b4ca91979354e616a0d2
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SHA256
f2869ebe5907fcd422205a3b7de71542ff653c6cb0a691de7ee2fec905f1881c
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SHA512
2ae1438223681c1f042dc882ea7d5d17dccbfff8f961bc93bd89f804101c30b82800ec867ea7256b0d8700626cf940fcd745157d09962db725b4af1668519f81
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.asplparts.com - Port:
587 - Username:
sales@asplparts.com - Password:
f3nu6R4lH
Extracted
Protocol: smtp- Host:
mail.asplparts.com - Port:
587 - Username:
sales@asplparts.com - Password:
f3nu6R4lH
Targets
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Target
RFQ_LPC1758FBD80 PURCHASE LIST pdf.exe
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Size
669KB
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MD5
2b3a922c18fd392f1f35f48d50ed37e5
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SHA1
81fb8b1f423daa32cfad39ff412fb44fe8c77a07
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SHA256
90146c2c184e1f81d14db6dca2b7c6c4414ebf36c1633bb05f7f3d61d1c7bac3
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SHA512
aa9ed7baf16bcafc22010cb280384148f899aa1e08221d6ec83f71dd72e376d3bae3bcd5dfcf9a5c4808747a303fb50aaaf71d394db6eef15c1b3ddcd859f0ba
Score10/10-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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CoreEntity .NET Packer
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
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AgentTesla Payload
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ReZer0 packer
Detects ReZer0, a packer with multiple versions used in various campaigns.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Reads data files stored by FTP clients
Tries to access configuration files associated with programs like FileZilla.
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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 Microsoft Outlook profiles
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Suspicious use of SetThreadContext
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