General

  • Target
    Downloads+12.6.24.rar
  • Size 80.7MB
  • Sample240811-3bewdaybpc
  • SHA256 66cf7d06e6cf6413d3e9e6a488f7528f5c6d06057abec20496f70d1691fbdfb2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      Downloads 12.6.24/Downloads 12.6.24/Downloads/Blocker v2.exe
    • Size 12.4MB
    • SHA256 deae15597f320e6c3b7b655947a6ef9459027790d452f5e1f2559b15ce50a2df
    • MD5 SHA1 SHA512 SSDEEP
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Stops running service(s)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Checks whether UAC is enabled

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Target
      Downloads 12.6.24/Downloads 12.6.24/Downloads/CS2.exe
    • Size 7.1MB
    • SHA256 3b618def9c8d4fd1cb3a4b8553f83c1ecc01be8720d82764ae7f5678570c9ddc
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      Downloads 12.6.24/Downloads 12.6.24/Downloads/Loud Chair.exe
    • Size 18.9MB
    • SHA256 320d56906b73e07663ae65f53e6ee1008042e3ecdd640f34d60e48c035fa7eb5
    • MD5 SHA1 SHA512 SSDEEP
    Score
    8/10
    • Downloads MZ/PE file

    • Looks for VMWare Tools registry key

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Target
      Downloads 12.6.24/Downloads 12.6.24/Downloads/Perm Woofer.exe
    • Size 28.1MB
    • SHA256 33db059ad0344af99a91e5dc4645b4ed21f6476301dbcdd9b7938fa9f5b240fa
    • MD5 SHA1 SHA512 SSDEEP
    Score
    9/10
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks whether UAC is enabled

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Target
      Downloads 12.6.24/Downloads 12.6.24/Downloads/Privacy Protector.exe
    • Size 8.6MB
    • SHA256 0890f0b89e5c5745ad4bfaf1ca6459c5b765adae9cc2d0988e9456894350b434
    • MD5 SHA1 SHA512 SSDEEP
    Score
    9/10
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Target
      Downloads 12.6.24/Downloads 12.6.24/Downloads/Silent Chair/Byr723V3Cq1.exe
    • Size 5.6MB
    • SHA256 f7b154b559d43433246b75a5294f260ecf11a1e03a77264b037c9d54a14315da
    • MD5 SHA1 SHA512 SSDEEP
    Score
    5/10
    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Target
      Downloads 12.6.24/Downloads 12.6.24/Downloads/Silent Chair/bsod fix.bat
    • Size 415B
    • SHA256 318ae14fd3712848ed06c109d36a9df600964e1d827581f980c121d52a7b5df5
    • MD5 SHA1 SHA512
    Score
    1/10
    • Target
      Downloads 12.6.24/Downloads 12.6.24/Downloads/Silent Chair/w11 fix.bat
    • Size 507B
    • SHA256 7ec1b31de3b0114c266df0b475c5c582a504c7c38f7127949df27f78a5d1c026
    • MD5 SHA1 SHA512
    • Modifies boot configuration data using bcdedit

    • Modify Registry: Disable Windows Driver Blocklist

      Disable Windows Driver Blocklist via Registry.

    • Executes dropped EXE

    • Loads dropped DLL

    • Target
      Downloads 12.6.24/Downloads 12.6.24/Downloads/Unlock All/bsod fix.bat
    • Size 415B
    • SHA256 318ae14fd3712848ed06c109d36a9df600964e1d827581f980c121d52a7b5df5
    • MD5 SHA1 SHA512
    Score
    1/10
    • Target
      Downloads 12.6.24/Downloads 12.6.24/Downloads/Unlock All/nRi28Wtqb1.exe
    • Size 5.6MB
    • SHA256 3a5576c4e7d9ed56cc295fea24ef0fa68cf4235dfefa434caa32015887e757c3
    • MD5 SHA1 SHA512 SSDEEP
    Score
    5/10
    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Target
      Downloads 12.6.24/Downloads 12.6.24/Downloads/Unlock All/w11 fix.bat
    • Size 507B
    • SHA256 7ec1b31de3b0114c266df0b475c5c582a504c7c38f7127949df27f78a5d1c026
    • MD5 SHA1 SHA512
    • Modifies boot configuration data using bcdedit

    • Modify Registry: Disable Windows Driver Blocklist

      Disable Windows Driver Blocklist via Registry.

    • Executes dropped EXE

    • Loads dropped DLL

MITRE ATT&CK Enterprise v15

Tasks

static1

themida
Score
7/10

behavioral1

evasionexecutionpersistencetrojan
Score
9/10

behavioral2

evasionexecutionpersistencetrojan
Score
9/10

behavioral3

Score
1/10

behavioral4

Score
1/10

behavioral5

Score
1/10

behavioral6

evasion
Score
8/10

behavioral7

evasiontrojan
Score
9/10

behavioral8

evasiontrojan
Score
9/10

behavioral9

evasiontrojan
Score
9/10

behavioral10

evasiontrojan
Score
9/10

behavioral11

Score
5/10

behavioral12

Score
5/10

behavioral13

Score
1/10

behavioral14

Score
1/10

behavioral15

defense_evasionevasionexecutionransomware
Score
9/10

behavioral16

defense_evasionevasionexecutionransomware
Score
9/10

behavioral17

Score
1/10

behavioral18

Score
1/10

behavioral19

Score
5/10

behavioral20

Score
5/10

behavioral21

defense_evasionevasionexecutionransomware
Score
9/10

behavioral22

defense_evasionevasionexecutionransomware
Score
9/10