General
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Target
VirusShare_627ec4f42d9649bc8309d87f03d1c288
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Size
368KB
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Sample
240610-nrmtlahh63
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MD5
627ec4f42d9649bc8309d87f03d1c288
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SHA1
6cd845e8de2c2197cbab48f94eea823f88b0efd9
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SHA256
3503e011b2844b6eb3f18b3a7c0965ff07171ac6af2488fcf03c0e69d95cd066
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SHA512
62899ac229fbfff6cd6ace9610b6d6dc027cc32ffe5b7b2c08fb3445815e134caec32047e0a5129118675f22b32aed516fc877b33c90da98261eb44f119a74bd
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SSDEEP
6144:e680E92oeOE4G63VEuFwm+DDrhd3wbYqaUq/JyKSmi97Msg4piwbBS9lkw86C:e68PIHt6DObD5dmYqarImi9jB4SBylkN
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare_627ec4f42d9649bc8309d87f03d1c288.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
VirusShare_627ec4f42d9649bc8309d87f03d1c288.exe
Resource
win10v2004-20240426-en
Malware Config
Extracted
C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_ReCoVeRy_+ifefx.txt
teslacrypt
http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/1BA8A65DD2793E7
http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/1BA8A65DD2793E7
http://yyre45dbvn2nhbefbmh.begumvelic.at/1BA8A65DD2793E7
http://xlowfznrg4wf7dli.ONION/1BA8A65DD2793E7
Extracted
C:\Program Files\7-Zip\Lang\_ReCoVeRy_+rrrku.txt
teslacrypt
http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/727A811BF4B2B4DA
http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/727A811BF4B2B4DA
http://yyre45dbvn2nhbefbmh.begumvelic.at/727A811BF4B2B4DA
http://xlowfznrg4wf7dli.ONION/727A811BF4B2B4DA
Targets
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Target
VirusShare_627ec4f42d9649bc8309d87f03d1c288
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Size
368KB
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MD5
627ec4f42d9649bc8309d87f03d1c288
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SHA1
6cd845e8de2c2197cbab48f94eea823f88b0efd9
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SHA256
3503e011b2844b6eb3f18b3a7c0965ff07171ac6af2488fcf03c0e69d95cd066
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SHA512
62899ac229fbfff6cd6ace9610b6d6dc027cc32ffe5b7b2c08fb3445815e134caec32047e0a5129118675f22b32aed516fc877b33c90da98261eb44f119a74bd
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SSDEEP
6144:e680E92oeOE4G63VEuFwm+DDrhd3wbYqaUq/JyKSmi97Msg4piwbBS9lkw86C:e68PIHt6DObD5dmYqarImi9jB4SBylkN
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TeslaCrypt, AlphaCrypt
Ransomware based on CryptoLocker. Shut down by the developers in 2016.
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (425) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Drops startup file
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Executes dropped EXE
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Adds Run key to start application
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Suspicious use of SetThreadContext
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