Analysis

  • max time kernel
    19s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    15-03-2021 13:44

General

  • Target

    SecuriteInfo.com.Variant.Bulz.392162.30748.358.exe

  • Size

    5.1MB

  • MD5

    7944dba0e2f775e78ea960caccd0b37a

  • SHA1

    3e262dd3efe917394cb2fab5bc10444d5980ae45

  • SHA256

    fb8a2b78f0d3139d8192dbeb925e8e8d13bf370540f2c7853107a8e4b3beac38

  • SHA512

    b2bcecbf6a5218b8fa667c2ada79743b1fe61f3f833356a5ea7df71dec5c5ece1f409b76bc8314bc84953cc1dc250a3c5a7716044a4d08ea8d64a6da53982afe

Malware Config

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

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

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • themida 1 IoCs

    Detects Themida, Advanced Windows software protection system.

  • Checks installed software on the system 1 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Bulz.392162.30748.358.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Bulz.392162.30748.358.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1888

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1888-2-0x0000000075781000-0x0000000075783000-memory.dmp
    Filesize

    8KB

  • memory/1888-3-0x0000000000400000-0x0000000000ED5000-memory.dmp
    Filesize

    10.8MB

  • memory/1888-4-0x0000000000401000-0x000000000041B000-memory.dmp
    Filesize

    104KB

  • memory/1888-5-0x0000000002D00000-0x0000000002D11000-memory.dmp
    Filesize

    68KB

  • memory/1888-6-0x00000000742A0000-0x000000007498E000-memory.dmp
    Filesize

    6.9MB

  • memory/1888-7-0x0000000002E70000-0x0000000002E99000-memory.dmp
    Filesize

    164KB

  • memory/1888-8-0x0000000002FB0000-0x0000000002FD8000-memory.dmp
    Filesize

    160KB

  • memory/1888-9-0x00000000054A1000-0x00000000054A2000-memory.dmp
    Filesize

    4KB

  • memory/1888-10-0x00000000054A2000-0x00000000054A3000-memory.dmp
    Filesize

    4KB

  • memory/1888-11-0x00000000054A3000-0x00000000054A4000-memory.dmp
    Filesize

    4KB

  • memory/1888-12-0x00000000054A4000-0x00000000054A6000-memory.dmp
    Filesize

    8KB