General
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Target
b309d2353e6faeb08cb4f1bfcb4b621b
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Size
472KB
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Sample
240304-y7ywxadc82
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MD5
b309d2353e6faeb08cb4f1bfcb4b621b
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SHA1
1aa2be497f4ee7770a4ab0a86dd77f8602241ddd
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SHA256
dba8caa3f2df314d28cbd0472fb4181c2cafddc05e9c4edb6a694af4d9187cca
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SHA512
5bc3c4422dfbaa4a40b459b0a14eaaacf83ef496afd478d36b2a9d387bc880167255c4aa8ae0b0a33d5778f0c4159ef46cbf81d340b73bbbc06b0b89e27f1604
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SSDEEP
6144:LiMmXRH6pXfSb0ceR/VFAHh1kgcs0HW1kyApHhP+gDzvRAExJex5gfzDVlVXgaVH:5MMpXKb0hNGh1kG0HWnALbix5GpX/H
Behavioral task
behavioral1
Sample
b309d2353e6faeb08cb4f1bfcb4b621b.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b309d2353e6faeb08cb4f1bfcb4b621b.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
b309d2353e6faeb08cb4f1bfcb4b621b
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Size
472KB
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MD5
b309d2353e6faeb08cb4f1bfcb4b621b
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SHA1
1aa2be497f4ee7770a4ab0a86dd77f8602241ddd
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SHA256
dba8caa3f2df314d28cbd0472fb4181c2cafddc05e9c4edb6a694af4d9187cca
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SHA512
5bc3c4422dfbaa4a40b459b0a14eaaacf83ef496afd478d36b2a9d387bc880167255c4aa8ae0b0a33d5778f0c4159ef46cbf81d340b73bbbc06b0b89e27f1604
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SSDEEP
6144:LiMmXRH6pXfSb0ceR/VFAHh1kgcs0HW1kyApHhP+gDzvRAExJex5gfzDVlVXgaVH:5MMpXKb0hNGh1kG0HWnALbix5GpX/H
Score10/10-
Modifies WinLogon for persistence
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Renames multiple (91) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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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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Drops autorun.inf file
Malware can abuse Windows Autorun to spread further via attached volumes.
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Drops file in System32 directory
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