General
- Target AP Biology - Macromolecules.pptx
- Size 4.0MB
- Sample260924-tx2slaysfs
- SHA256 73a668f89d727015962a727cf2d3edc5a446b9da10718cba4dfec6525ed6bc20
- MD5 23d801a803599a3b3a0174158ca0ad68
- SHA1 d7077da034c60e91e6349e4e4b69b42db3715a23
- SHA512 63b45aa234d211d424489faddb65af5d4cfd954e4b2c8e6a8edc70746009ecce8c90b7591f78db6229b2b77cf32b170a0ec046af092a7955e2db650f37eeff32
- SSDEEP 98304:lku3YMCUqv64jzZILKC3o0NEjBoz2K8bmpLPJ6GjvL:lku3RhqS+ILb3o0NE9knPJtvL
- TLSH T19E163349BCCED97DCEB6E1B85C04CE2B3CC052160E5B846A1BDCD8CA016DD9E1297BD9
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
AP Biology - Macromolecules.pptx
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
AP Biology - Macromolecules.pptx
Resource
win10ltsc2021-20260911-en
Malware Config
Targets
-
- Target AP Biology - Macromolecules.pptx
- Size 4.0MB
- SHA256 73a668f89d727015962a727cf2d3edc5a446b9da10718cba4dfec6525ed6bc20
- MD5 23d801a803599a3b3a0174158ca0ad68
- SHA1 d7077da034c60e91e6349e4e4b69b42db3715a23
- SHA512 63b45aa234d211d424489faddb65af5d4cfd954e4b2c8e6a8edc70746009ecce8c90b7591f78db6229b2b77cf32b170a0ec046af092a7955e2db650f37eeff32
- SSDEEP 98304:lku3YMCUqv64jzZILKC3o0NEjBoz2K8bmpLPJ6GjvL:lku3RhqS+ILb3o0NE9knPJtvL
- TLSH T19E163349BCCED97DCEB6E1B85C04CE2B3CC052160E5B846A1BDCD8CA016DD9E1297BD9
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Chaos Ransomware
-
UAC bypass
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
-
Modifies boot configuration data using bcdedit
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Disables Task Manager via registry modification
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Creates a file in the Startup directory
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
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Executes dropped EXE
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Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
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Drops desktop.ini file(s)
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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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Executes a VBScript file via the Windows Script Host.
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Sets desktop wallpaper using registry
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3Visual Basic
1Windows Command Shell
1Windows Management Instrumentation
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Direct Volume Access
1Impair Defenses
1Disable or Modify Tools
1Indicator Removal
3File Deletion
3Modify Registry
3Pre-OS Boot
1Bootkit
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Discovery
Browser Information Discovery
1Peripheral Device Discovery
1Query Registry
5Remote System Discovery
1System Information Discovery
5System Location Discovery
1System Language Discovery
1System Network Configuration Discovery
1Internet Connection Discovery
1System Time Discovery
1