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General

  • Target

    dcb373f73cc5e29881b6c97f753da1db91becee01b5eade03b0fd217d10b4e7d.exe

  • Size

    1.6MB

  • Sample

    250306-fzdlwszpx8

  • MD5

    8c767708c9a9554c0afb504629e75ffd

  • SHA1

    c65394806c0f77af880c7ff8a021bd4222ca3f11

  • SHA256

    dcb373f73cc5e29881b6c97f753da1db91becee01b5eade03b0fd217d10b4e7d

  • SHA512

    f9531159b45f92db319f351ebf4dadf9ba3c413e87da401a0af81d25a446084ed30dee670462292b989e1c9b0074a3c2ae76bb8a1d992e4407f72360303b4e16

  • SSDEEP

    49152:R1aqCQ3KKia9icS8P80nPIIXQocVHmir6QmEGmNyRzs3Xn:R1aA37ia9iJ800QIXQocVHoEGV0

Malware Config

Extracted

Family

systembc

C2

towerbingobongoboom.com

62.60.226.86

Targets

    • Target

      dcb373f73cc5e29881b6c97f753da1db91becee01b5eade03b0fd217d10b4e7d.exe

    • Size

      1.6MB

    • MD5

      8c767708c9a9554c0afb504629e75ffd

    • SHA1

      c65394806c0f77af880c7ff8a021bd4222ca3f11

    • SHA256

      dcb373f73cc5e29881b6c97f753da1db91becee01b5eade03b0fd217d10b4e7d

    • SHA512

      f9531159b45f92db319f351ebf4dadf9ba3c413e87da401a0af81d25a446084ed30dee670462292b989e1c9b0074a3c2ae76bb8a1d992e4407f72360303b4e16

    • SSDEEP

      49152:R1aqCQ3KKia9icS8P80nPIIXQocVHmir6QmEGmNyRzs3Xn:R1aA37ia9iJ800QIXQocVHoEGV0

    • SystemBC

      SystemBC is a proxy and remote administration tool first seen in 2019.

    • Systembc family

    • 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.

    • 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

MITRE ATT&CK Enterprise v15

Tasks