General
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Target
Stern.exe
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Size
5.9MB
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Sample
240302-zswcxahh28
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MD5
d4833b0220121e2c41c923360d77da1a
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SHA1
7863eaa06b7d80a2120993faa7bd0b5b2ecbed76
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SHA256
2eab2306bf636d962dea38d0e13c69b3cd11cfbca0e0164d0475542b4bc5a48b
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SHA512
2cda3db08ea34ebe21f14132b2afdae27246796b95188197946d31f461e16e2ade8ca36ba70e400cac98a8bc146b59dfed57cf804f83883e8c9299df8fcdade4
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SSDEEP
98304:OwCblt+KOS4F2omcQ94CRwh+wl/4ioB7CuenSM3R7wwLziiTasI/VYXmm+ScWXng:OwaM2oFQ9RRNc/4M55RTiiwVOcS7XjxO
Static task
static1
Behavioral task
behavioral1
Sample
Stern.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Stern.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
Stern.exe
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Size
5.9MB
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MD5
d4833b0220121e2c41c923360d77da1a
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SHA1
7863eaa06b7d80a2120993faa7bd0b5b2ecbed76
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SHA256
2eab2306bf636d962dea38d0e13c69b3cd11cfbca0e0164d0475542b4bc5a48b
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SHA512
2cda3db08ea34ebe21f14132b2afdae27246796b95188197946d31f461e16e2ade8ca36ba70e400cac98a8bc146b59dfed57cf804f83883e8c9299df8fcdade4
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SSDEEP
98304:OwCblt+KOS4F2omcQ94CRwh+wl/4ioB7CuenSM3R7wwLziiTasI/VYXmm+ScWXng:OwaM2oFQ9RRNc/4M55RTiiwVOcS7XjxO
Score8/10-
Creates new service(s)
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Drops file in Drivers directory
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Stops running service(s)
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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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Loads dropped DLL
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Legitimate hosting services abused for malware hosting/C2
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Drops file in System32 directory
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Suspicious use of SetThreadContext
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