General
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Target
3440085.pdf
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Size
58KB
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Sample
210322-cxjdwefjv6
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MD5
548c9fb16317023983983f0042bd6471
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SHA1
a1ea30d71d7282926d243ceba8d5326369cb81f5
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SHA256
ac0358c2bfc7566f191527a248641dd32bdd2e17115c7999e068c2e31db4b593
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SHA512
f1659f8d3b4ccfd2f7c21fd8284cb0c20a1ad8e7b044729bef19a065a4c478f036bfb2d720884f3ae65d064bbacf11041732af3007ba29457a93b112756b222a
Malware Config
Targets
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Target
3440085.pdf
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Size
58KB
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MD5
548c9fb16317023983983f0042bd6471
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SHA1
a1ea30d71d7282926d243ceba8d5326369cb81f5
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SHA256
ac0358c2bfc7566f191527a248641dd32bdd2e17115c7999e068c2e31db4b593
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SHA512
f1659f8d3b4ccfd2f7c21fd8284cb0c20a1ad8e7b044729bef19a065a4c478f036bfb2d720884f3ae65d064bbacf11041732af3007ba29457a93b112756b222a
Score10/10-
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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ACProtect 1.3x - 1.4x DLL software
Detects file using ACProtect software.
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Blocklisted process makes network request
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Drops file in Drivers directory
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Executes dropped EXE
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UPX packed file
Detects executables packed with UPX/modified UPX open source packer.
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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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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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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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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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