General

  • Target

    7837fdd84a7370d9d466f2dc04f7e959.bin

  • Size

    4.1MB

  • Sample

    250507-bykatswwgs

  • MD5

    e4557f92f720b8dc5eeca5ef85120fba

  • SHA1

    7fa221c20e0b62d10bfcca660139668d1d42589a

  • SHA256

    ec1d9597733789523130e23208f7cfa7ee06351e6408a4caaed333470a5e2c76

  • SHA512

    d9b66bb7094a6ff000d34a70166407746903dd080c25bb9bc809a290f150c0b7c59dd5c5ed2febe8678a746135161c5d932ce4351f83b0e0b067010860f1d5eb

  • SSDEEP

    98304:mSHfvF0CwBLsBhs7tESIIZNuSiTZs+qYPbRr/o790P:mal0CwBoBhwtESIIZNfmZfqYPb9waP

Malware Config

Extracted

Family

gcleaner

C2

45.91.200.135

Targets

    • Target

      c9d9a3370d1189fa0bb4dce27e72f4c27033f05e668fb020b4cb9351a00010a2.exe

    • Size

      4.1MB

    • MD5

      7837fdd84a7370d9d466f2dc04f7e959

    • SHA1

      e29faab66a73cfdc4c73610fb0ecc6035130158d

    • SHA256

      c9d9a3370d1189fa0bb4dce27e72f4c27033f05e668fb020b4cb9351a00010a2

    • SHA512

      42a49063e964eab0e397cbfaadeb25ed68f2ff0472f06cb56a4984b4a9097e5866d2952e979fd4cb438a93e9744a5761a47b6cbfbf7e99b4c1b27012f25a1ea7

    • SSDEEP

      98304:tPGoJliMI3F5YuWkjLpqlgGtKuXdgFbZbGQw1E:teKli/5ekPsAu6zK1E

    • GCleaner

      GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

    • Gcleaner family

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks

OSZAR »