Analysis

  • max time kernel
    261s
  • max time network
    260s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    06-12-2020 19:00

General

  • Target

    oxygen.exe

  • Size

    2.3MB

  • MD5

    d06a5fcd65d93f6914e38387b946288d

  • SHA1

    f016c0dca18a1fe92eabeef98796f0067bb54c7d

  • SHA256

    c570eff61ea7f3cac3c6e044947b6500dbb774f454024814834400b818c76b45

  • SHA512

    b8fa4f3305d94744e6850158dff8ef7bcedb7bddf53a6bd8f7035863c121e580c2287ea23528904ea78fb4c83e74fbe58a901800f476724f4b0340e3ab6a49b5

Malware Config

Signatures

  • RedLine

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

  • 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
  • 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\oxygen.exe
    "C:\Users\Admin\AppData\Local\Temp\oxygen.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1048

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1048-2-0x0000000073BE0000-0x00000000742CE000-memory.dmp

    Filesize

    6.9MB

  • memory/1048-3-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

    Filesize

    4KB

  • memory/1048-5-0x0000000006270000-0x0000000006271000-memory.dmp

    Filesize

    4KB

  • memory/1048-6-0x0000000005CA0000-0x0000000005CA1000-memory.dmp

    Filesize

    4KB

  • memory/1048-7-0x0000000005C60000-0x0000000005C61000-memory.dmp

    Filesize

    4KB

  • memory/1048-8-0x0000000005CE0000-0x0000000005CE1000-memory.dmp

    Filesize

    4KB

  • memory/1048-9-0x0000000005F70000-0x0000000005F71000-memory.dmp

    Filesize

    4KB

  • memory/1048-10-0x00000000071F0000-0x00000000071F1000-memory.dmp

    Filesize

    4KB

  • memory/1048-11-0x00000000078F0000-0x00000000078F1000-memory.dmp

    Filesize

    4KB

  • memory/1048-12-0x00000000073C0000-0x00000000073C1000-memory.dmp

    Filesize

    4KB

  • memory/1048-13-0x0000000008320000-0x0000000008321000-memory.dmp

    Filesize

    4KB

  • memory/1048-14-0x00000000074E0000-0x00000000074E1000-memory.dmp

    Filesize

    4KB

  • memory/1048-15-0x0000000007460000-0x0000000007461000-memory.dmp

    Filesize

    4KB

  • memory/1048-16-0x0000000007810000-0x0000000007811000-memory.dmp

    Filesize

    4KB

  • memory/1048-17-0x0000000007E70000-0x0000000007E71000-memory.dmp

    Filesize

    4KB

  • memory/1048-18-0x0000000007F60000-0x0000000007F61000-memory.dmp

    Filesize

    4KB