Analysis

  • max time kernel
    173s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    15-02-2022 08:03

General

  • Target

    93c898e900b2f5b2df2eb45ea60f30735444c4bc40166bf6bb487c4846f525bc.exe

  • Size

    2.4MB

  • MD5

    8fc0c161a03aa927986e6713f7de4854

  • SHA1

    a393954e96b238529bc22f02c987e2c48c785ce3

  • SHA256

    93c898e900b2f5b2df2eb45ea60f30735444c4bc40166bf6bb487c4846f525bc

  • SHA512

    d809d0835532c4d1a86e480ff08f3cde941f7e60b6f8fb813ec240ebbac7261f5aec91b879dc3b3d1b8f246c4ddd2b14661f8caecab56666be83629e285e8fc3

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 49 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\93c898e900b2f5b2df2eb45ea60f30735444c4bc40166bf6bb487c4846f525bc.exe
    "C:\Users\Admin\AppData\Local\Temp\93c898e900b2f5b2df2eb45ea60f30735444c4bc40166bf6bb487c4846f525bc.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:3372
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1616
  • 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:1032
  • 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:3112

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/3372-130-0x0000000075650000-0x0000000075651000-memory.dmp
    Filesize

    4KB

  • memory/3372-132-0x0000000077644000-0x0000000077646000-memory.dmp
    Filesize

    8KB

  • memory/3372-131-0x0000000075650000-0x0000000075651000-memory.dmp
    Filesize

    4KB

  • memory/3372-135-0x0000000074BDE000-0x0000000074BDF000-memory.dmp
    Filesize

    4KB

  • memory/3372-136-0x0000000000530000-0x0000000000BB0000-memory.dmp
    Filesize

    6.5MB

  • memory/3372-137-0x0000000005DB0000-0x00000000063C8000-memory.dmp
    Filesize

    6.1MB

  • memory/3372-138-0x0000000005730000-0x0000000005742000-memory.dmp
    Filesize

    72KB

  • memory/3372-139-0x00000000058A0000-0x00000000059AA000-memory.dmp
    Filesize

    1.0MB

  • memory/3372-140-0x0000000005780000-0x0000000005781000-memory.dmp
    Filesize

    4KB

  • memory/3372-141-0x00000000057D0000-0x000000000580C000-memory.dmp
    Filesize

    240KB