Analysis

  • max time kernel
    169s
  • max time network
    178s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    15-02-2022 13:42

General

  • Target

    494ad1789b26feaff8bf273203aa76f3587f28cefd58184f8fe2ef011a2b5581.exe

  • Size

    3.6MB

  • MD5

    c93df51b25b2bc23daf75e5ba6da3647

  • SHA1

    6b390456b8c7980de89e4dfb0a08d72aacd17579

  • SHA256

    494ad1789b26feaff8bf273203aa76f3587f28cefd58184f8fe2ef011a2b5581

  • SHA512

    948101bf6b0f96d15a0d816a3a4c90407eb7f523985e0f1ca049a06df63ed4ccaed896198f30c27c047d1d5f2f4363758f4e116c4e339c96bd98f1894a82e899

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 1 IoCs
  • .NET Reactor proctector 1 IoCs

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • 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\494ad1789b26feaff8bf273203aa76f3587f28cefd58184f8fe2ef011a2b5581.exe
    "C:\Users\Admin\AppData\Local\Temp\494ad1789b26feaff8bf273203aa76f3587f28cefd58184f8fe2ef011a2b5581.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:4012
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3728
  • 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:2860
  • 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:4016

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/4012-133-0x0000000076860000-0x0000000076861000-memory.dmp
    Filesize

    4KB

  • memory/4012-134-0x0000000077014000-0x0000000077016000-memory.dmp
    Filesize

    8KB

  • memory/4012-135-0x000000007450E000-0x000000007450F000-memory.dmp
    Filesize

    4KB

  • memory/4012-136-0x0000000000C70000-0x0000000001452000-memory.dmp
    Filesize

    7.9MB

  • memory/4012-137-0x0000000005C70000-0x0000000006288000-memory.dmp
    Filesize

    6.1MB

  • memory/4012-138-0x00000000056D0000-0x00000000056E2000-memory.dmp
    Filesize

    72KB

  • memory/4012-139-0x0000000005800000-0x000000000590A000-memory.dmp
    Filesize

    1.0MB

  • memory/4012-140-0x0000000005730000-0x000000000576C000-memory.dmp
    Filesize

    240KB

  • memory/4012-141-0x0000000005640000-0x0000000005641000-memory.dmp
    Filesize

    4KB