Analysis

  • max time kernel
    153s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    15-02-2022 05:47

General

  • Target

    d4ac1cc4b72a680d76ed4adf7a02d68ec816a503bbe0a6c38c725ed3b9378655.exe

  • Size

    2.5MB

  • MD5

    68d8ffa7d432ec9493ccba43a2786de9

  • SHA1

    763507d222a3b0fab79914e266a6e69b6a1451b4

  • SHA256

    d4ac1cc4b72a680d76ed4adf7a02d68ec816a503bbe0a6c38c725ed3b9378655

  • SHA512

    92b7ea961da5f1256ddf4f9df17810e492670e5383bca363a29dd676ac6dcee4b45bf471ef239ebd35cf572d69464d3ca3955b1b0afdaf9b6b2ecf3a2a8c6ca1

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 1 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.

  • Themida packer 1 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 50 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d4ac1cc4b72a680d76ed4adf7a02d68ec816a503bbe0a6c38c725ed3b9378655.exe
    "C:\Users\Admin\AppData\Local\Temp\d4ac1cc4b72a680d76ed4adf7a02d68ec816a503bbe0a6c38c725ed3b9378655.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:3276
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1180
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:2616
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:3640

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3276-130-0x0000000075B70000-0x0000000075B71000-memory.dmp
    Filesize

    4KB

  • memory/3276-134-0x00000000779B4000-0x00000000779B6000-memory.dmp
    Filesize

    8KB

  • memory/3276-135-0x0000000074F4E000-0x0000000074F4F000-memory.dmp
    Filesize

    4KB

  • memory/3276-136-0x0000000000200000-0x00000000009A6000-memory.dmp
    Filesize

    7.6MB

  • memory/3276-137-0x00000000061B0000-0x00000000067C8000-memory.dmp
    Filesize

    6.1MB

  • memory/3276-138-0x00000000059F0000-0x0000000005A02000-memory.dmp
    Filesize

    72KB

  • memory/3276-139-0x0000000005B90000-0x0000000005C9A000-memory.dmp
    Filesize

    1.0MB

  • memory/3276-140-0x0000000005B80000-0x0000000005B81000-memory.dmp
    Filesize

    4KB

  • memory/3276-141-0x0000000005A50000-0x0000000005A8C000-memory.dmp
    Filesize

    240KB