Analysis

  • max time kernel
    149s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25/06/2022, 01:48

General

  • Target

    f05dc2ebf5bebbe40f1698489b873adcbefa41c98afe544fa04fd1ded91c9189.exe

  • Size

    2.2MB

  • MD5

    41af7998ebb519e0a0ca9635a865be5d

  • SHA1

    68a7613a8d4483efb67f3794c245420e0daf2f95

  • SHA256

    f05dc2ebf5bebbe40f1698489b873adcbefa41c98afe544fa04fd1ded91c9189

  • SHA512

    31af03c31f0568ae57aab30c3d320a5505f3106ffd02c19b9bb5c740f76af332b27d929fca715029bfd49f2a0f404643616f0f88ab4f115693949688112ac5bb

Malware Config

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f05dc2ebf5bebbe40f1698489b873adcbefa41c98afe544fa04fd1ded91c9189.exe
    "C:\Users\Admin\AppData\Local\Temp\f05dc2ebf5bebbe40f1698489b873adcbefa41c98afe544fa04fd1ded91c9189.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    PID:1380

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1380-54-0x00000000002A0000-0x00000000007BB000-memory.dmp

    Filesize

    5.1MB

  • memory/1380-55-0x0000000076C81000-0x0000000076C83000-memory.dmp

    Filesize

    8KB

  • memory/1380-56-0x0000000077D80000-0x0000000077F00000-memory.dmp

    Filesize

    1.5MB

  • memory/1380-57-0x00000000002A0000-0x00000000007BB000-memory.dmp

    Filesize

    5.1MB

  • memory/1380-58-0x0000000074E51000-0x0000000074E53000-memory.dmp

    Filesize

    8KB

  • memory/1380-59-0x0000000074B51000-0x0000000074B53000-memory.dmp

    Filesize

    8KB

  • memory/1380-64-0x00000000749E1000-0x00000000749E3000-memory.dmp

    Filesize

    8KB

  • memory/1380-69-0x00000000002A0000-0x00000000007BB000-memory.dmp

    Filesize

    5.1MB

  • memory/1380-70-0x00000000002A0000-0x00000000007BB000-memory.dmp

    Filesize

    5.1MB

  • memory/1380-71-0x00000000749C1000-0x00000000749C3000-memory.dmp

    Filesize

    8KB