General
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Target
Bootstrapper.exe
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Size
972KB
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Sample
240930-n1qxlstdqr
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MD5
90fd25ced85fe6db28d21ae7d1f02e2c
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SHA1
e27eff4cd4d383f5c564cce2bd1aaa2ffe4ec056
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SHA256
97572bd57b08b59744e4dfe6f93fb96be4002dfe1aa78683771725401776464f
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SHA512
1c775cf8dfde037eaa98eb14088c70d74923f0f6a83030a71f2f4c1a4453f6154dab7a4aa175e429860badda3e5e0ae226f3c3e8171332f5962bf36f8aa073fa
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SSDEEP
24576:DIbp4sZotkNjFC/4qxp+k+kPFoHZvPrSMc:cvotkNjg/lhqZvG
Static task
static1
Behavioral task
behavioral1
Sample
Bootstrapper.exe
Resource
win10v2004-20240802-en
Malware Config
Targets
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Target
Bootstrapper.exe
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Size
972KB
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MD5
90fd25ced85fe6db28d21ae7d1f02e2c
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SHA1
e27eff4cd4d383f5c564cce2bd1aaa2ffe4ec056
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SHA256
97572bd57b08b59744e4dfe6f93fb96be4002dfe1aa78683771725401776464f
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SHA512
1c775cf8dfde037eaa98eb14088c70d74923f0f6a83030a71f2f4c1a4453f6154dab7a4aa175e429860badda3e5e0ae226f3c3e8171332f5962bf36f8aa073fa
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SSDEEP
24576:DIbp4sZotkNjFC/4qxp+k+kPFoHZvPrSMc:cvotkNjg/lhqZvG
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Downloads MZ/PE file
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Event Triggered Execution: Image File Execution Options Injection
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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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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
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Loads dropped DLL
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Blocklisted process makes network request
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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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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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Drops file in System32 directory
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Suspicious use of NtCreateThreadExHideFromDebugger
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Active Setup
1Browser Extensions
1Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Privilege Escalation
Boot or Logon Autostart Execution
1Active Setup
1Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Discovery
Browser Information Discovery
1Network Share Discovery
1Peripheral Device Discovery
2Query Registry
9System Information Discovery
8System Location Discovery
1System Language Discovery
1System Network Configuration Discovery
1Internet Connection Discovery
1System Time Discovery
1Virtualization/Sandbox Evasion
1