General
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Target
Dropper.bat
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Size
470B
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Sample
240904-rsdh4asann
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MD5
8073ff57f855d5cd51346f011933d9fb
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SHA1
d24fc282fb660945b87e1c41860a031f6e7ec9f6
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SHA256
6bce98ce8751d6f87e97578a05e606a0b699f24c1a69b96cd28ef88d4984fe71
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SHA512
9f2e04c4f8bdeab0e2075b5bc42edbe6a9ee4221fbf1ebbacd44238576e77f7b2d5f5d3ac90d433b8b6f5493fef51747405e14a5aa2cf59a4663b2cf385b4610
Static task
static1
Behavioral task
behavioral1
Sample
Dropper.bat
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Dropper.bat
Resource
win10v2004-20240802-en
Malware Config
Extracted
https://master-repogen.vercel.app/file/server.scr
Extracted
C:\wlJ8FiR2h.README.txt
lockbit
http://lockbitsupt7nr3fa6e7xyb73lk6bw6rcneqhoyblniiabj4uwvzapqd.onion
http://lockbitsupuhswh4izvoucoxsbnotkmgq6durg7kficg6u33zfvq3oyd.onion
http://lockbitsupn2h6be2cnqpvncyhj4rgmnwn44633hnzzmtxdvjoqlp7yd.onion
http://lockbitsupp.uz
http://lockbitapt2yfbt7lchxejug47kmqvqqxvvjpqkmevv4l3azl3gy6pyd.onion
http://lockbitapt5x4zkjbcqmz6frdhecqqgadevyiwqxukksspnlidyvd7qd.onion
http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion
http://lockbitapt34kvrip6xojylohhxrwsvpzdffgs5z4pbbsywnzsbdguqd.onion
http://lockbitaptc2iq4atewz2ise62q63wfktyrl4qtwuk5qax262kgtzjqd.onion
http://lockbitaptjpikdqjynvgozhgc6bgetgucdk5xjacozeaawihmoio6yd.onion
http://lockbitaptq7ephv2oigdncfhtwhpqgwmqojnxqdyhprxxfpcllqdxad.onion
http://lockbitaptstzf3er2lz6ku3xuifafq2yh5lmiqj5ncur6rtlmkteiqd.onion
http://lockbitaptoofrpignlz6dt2wqqc5z3a4evjevoa3eqdfcntxad5lmyd.onion
Targets
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Target
Dropper.bat
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Size
470B
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MD5
8073ff57f855d5cd51346f011933d9fb
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SHA1
d24fc282fb660945b87e1c41860a031f6e7ec9f6
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SHA256
6bce98ce8751d6f87e97578a05e606a0b699f24c1a69b96cd28ef88d4984fe71
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SHA512
9f2e04c4f8bdeab0e2075b5bc42edbe6a9ee4221fbf1ebbacd44238576e77f7b2d5f5d3ac90d433b8b6f5493fef51747405e14a5aa2cf59a4663b2cf385b4610
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Rule to detect Lockbit 3.0 ransomware Windows payload
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Renames multiple (615) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Blocklisted process makes network request
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Drops desktop.ini file(s)
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Indicator Removal: File Deletion
Adversaries may delete files left behind by the actions of their intrusion activity.
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Drops file in System32 directory
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Sets desktop wallpaper using registry
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Suspicious use of NtSetInformationThreadHideFromDebugger
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