General
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Target
Software-update-patc_579570356.sfx.exe
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Size
28.5MB
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Sample
211021-qbjs4sacg9
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MD5
b64a9d5a67665275d9cbb1d320f1361a
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SHA1
3935a3994cb12a69ece3517a63eb35820761feaf
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SHA256
28b8658e761beebef9578a13e60f231b7bd5af81107210c06ac108276e9447b9
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SHA512
261b47e9218c1531b31ea4ba9a7aa89d5a28b7f0c4c8e4b8196acec7cbd107b31c169eb2fdcde324eeb5e8427298508d39260da82026125c199b2d146cf71d37
Static task
static1
Behavioral task
behavioral1
Sample
Software-update-patc_579570356.sfx.exe
Resource
win10-en-20210920
Malware Config
Extracted
vidar
41.5
223
https://mas.to/@xeroxxx
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profile_id
223
Targets
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Target
Software-update-patc_579570356.sfx.exe
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Size
28.5MB
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MD5
b64a9d5a67665275d9cbb1d320f1361a
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SHA1
3935a3994cb12a69ece3517a63eb35820761feaf
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SHA256
28b8658e761beebef9578a13e60f231b7bd5af81107210c06ac108276e9447b9
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SHA512
261b47e9218c1531b31ea4ba9a7aa89d5a28b7f0c4c8e4b8196acec7cbd107b31c169eb2fdcde324eeb5e8427298508d39260da82026125c199b2d146cf71d37
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine Payload
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Registers COM server for autorun
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Vidar Stealer
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Blocklisted process makes network request
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Downloads MZ/PE file
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Drops file in Drivers directory
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Executes dropped EXE
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Sets file execution options in registry
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Identifies Wine through registry keys
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Loads dropped DLL
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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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Legitimate hosting services abused for malware hosting/C2
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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