General
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Target
Proton Crypter v2.exe
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Size
1.2MB
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Sample
220729-j5y2kageal
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MD5
4507f6a9c9532c1347a44e1f3f4de2b0
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SHA1
9166b6628c4d37182c3abc851cb5ebfce9c18521
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SHA256
d06b31ccce69bfc88f4de44a28981aaf25bd7bdfba248b5ef2130f7a6cc4d508
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SHA512
507a1cd7483a0be27d8078b1d799dfd2b874ce6295e995702c1aa22c6f3fc5391c6a15357d8b398646d64c7fa38c2d189c1fc18539068948e693b2142bc8adda
Static task
static1
Behavioral task
behavioral1
Sample
Proton Crypter v2.exe
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
Proton Crypter v2.exe
Resource
win10-20220722-en
Behavioral task
behavioral3
Sample
Proton Crypter v2.exe
Resource
win10v2004-20220721-en
Behavioral task
behavioral4
Sample
Proton Crypter v2.exe
Resource
win11-20220223-en
Malware Config
Targets
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Target
Proton Crypter v2.exe
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Size
1.2MB
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MD5
4507f6a9c9532c1347a44e1f3f4de2b0
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SHA1
9166b6628c4d37182c3abc851cb5ebfce9c18521
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SHA256
d06b31ccce69bfc88f4de44a28981aaf25bd7bdfba248b5ef2130f7a6cc4d508
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SHA512
507a1cd7483a0be27d8078b1d799dfd2b874ce6295e995702c1aa22c6f3fc5391c6a15357d8b398646d64c7fa38c2d189c1fc18539068948e693b2142bc8adda
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Detect PureCrypter loader
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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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PureCrypter
PureCrypter is a loader which is intended for downloading and executing additional payloads.
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Executes dropped EXE
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Suspicious use of SetThreadContext
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