General
- Target 250206-1yfp3sylcv_pw_infected.zip
- Size 3.0MB
- Sample260810-yee84agk2w
- SHA256 dd4a8c3d4afbe1cc1bd6d76bb20c5049ab48c107fee434232a6cc30bd96204c8
- MD5 0d16179b144f934f18f06dd92855305f
- SHA1 0ae2b8f5408854fc231f97f154af0d00d3cfc744
- SHA512 f8df0e90951aaca65adc25d300e5d3681a1d7304f56b046e9f2f95cf1fc51ccd2565829b62063e399431f150160957e9a938d89f996854a568a89f2dff46bef4
- SSDEEP 98304:+XkPzR9L1tv++m1B29WH91O4Y/VnEDcldH:+m+Ry9x4Y/scH
- TLSH T1A5E533D777B00D62D9DB909E35C8B6ABDB790C085750E766C78DBD0C028499FABDB802
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
WinGas.exe
Resource
win10ltsc2021-20260513-en
Malware Config
Targets
-
- Target WinGas.exe
- Size 3.1MB
- SHA256 138fbad4bdec2f62d7c0e60e4317023b5b6c0009371885b0b14090b1ce2c339f
- MD5 4f09173484799fef0ea81bccd8c52a4a
- SHA1 77d4f240cd66e94222ee5d7ede2234920705e4e3
- SHA512 80213cadf95ce2ade75ae1c7ffa5ab664dc6269dd9671a4b8c32b3f6f6614057f82ead27e1df1634cd4015e4931fbfbb32a33a8dfdcf13f4078cb4d640ad7ef4
- SSDEEP 98304:fwY/ehNdz962NiCvbA2nwRXjsKkXm2iSexj5b:fwwehNRYWbnKk22Jo9
- TLSH T1B4E533C9CF91107BF27344B1C0E372754F466605A39A9AD3832E2D269763E508AF9C7E
- MD5 SHA1 SHA512 SSDEEP TLSH
-
UAC bypass
-
Blocks application from running via registry modification
Adds application to list of disallowed applications.
-
Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
-
Disables Task Manager via registry modification
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Modifies system executable filetype association
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Hijack Execution Flow: Executable Installer File Permissions Weakness
Possible Turn off User Account Control's privilege elevation for standard users.
-
Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
-
Drops file in System32 directory
-
Executes a VBScript file via the Windows Script Host.
-
Sets desktop wallpaper using registry
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2Visual Basic
1Windows Command Shell
1Persistence
Boot or Logon Autostart Execution
1Active Setup
1Event Triggered Execution
1Change Default File Association
1Hijack Execution Flow
1Executable Installer File Permissions Weakness
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Active Setup
1Event Triggered Execution
1Change Default File Association
1Hijack Execution Flow
1Executable Installer File Permissions Weakness
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Hijack Execution Flow
1Executable Installer File Permissions Weakness
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
5Pre-OS Boot
1Bootkit
1