General
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Target
24bbfa8d70a5d5e74791b0af93c77802df7e965b14b0649aaec2ab8dd0e0c999.exe
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Size
5.4MB
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Sample
250128-ghnk7szkcl
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MD5
dd2c5095b1d6590197ed2432837655f0
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SHA1
d287bb38f83941199fa66d7420b6f8cff2257a16
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SHA256
24bbfa8d70a5d5e74791b0af93c77802df7e965b14b0649aaec2ab8dd0e0c999
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SHA512
24d7f1b61f07060f7723a306d46b1d82ca1b54a93770bfb783b83f613edb9a412f929a40c396fda5b6b3402ca37531f53ce1d42524623a6ce1cfee61e726e283
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SSDEEP
98304:zHTFcsxxcsx30XgnNvfSDRyhoVi8rhh+xX/r:zHOgn0DRy2oR/r
Behavioral task
behavioral1
Sample
24bbfa8d70a5d5e74791b0af93c77802df7e965b14b0649aaec2ab8dd0e0c999.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
24bbfa8d70a5d5e74791b0af93c77802df7e965b14b0649aaec2ab8dd0e0c999.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
quasar
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encryption_key
329720B689F7B7703EAAA9546BE3BAFE737B0649
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reconnect_delay
3000
Targets
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Target
24bbfa8d70a5d5e74791b0af93c77802df7e965b14b0649aaec2ab8dd0e0c999.exe
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Size
5.4MB
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MD5
dd2c5095b1d6590197ed2432837655f0
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SHA1
d287bb38f83941199fa66d7420b6f8cff2257a16
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SHA256
24bbfa8d70a5d5e74791b0af93c77802df7e965b14b0649aaec2ab8dd0e0c999
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SHA512
24d7f1b61f07060f7723a306d46b1d82ca1b54a93770bfb783b83f613edb9a412f929a40c396fda5b6b3402ca37531f53ce1d42524623a6ce1cfee61e726e283
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SSDEEP
98304:zHTFcsxxcsx30XgnNvfSDRyhoVi8rhh+xX/r:zHOgn0DRy2oR/r
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Quasar family
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Quasar payload
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Sets service image path 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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Indicator Removal: Clear Windows Event Logs
Clear Windows Event Logs to hide the activity of an intrusion.
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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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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Indicator Removal
1Clear Windows Event Logs
1Modify Registry
1Pre-OS Boot
1Bootkit
1