Analysis

  • max time kernel
    162s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    15-02-2022 06:48

General

  • Target

    b704a93a48716895f924221cc63e3bec2f9681b92cfe4b9176f1cf98ce77ce74.exe

  • Size

    2.8MB

  • MD5

    934a2ff0a3b70b560122a52f67eb50bf

  • SHA1

    15747565aea9329806fe74ffe1b9f70685edea9b

  • SHA256

    b704a93a48716895f924221cc63e3bec2f9681b92cfe4b9176f1cf98ce77ce74

  • SHA512

    0abb3bcfe8962d7bec40fe507908909ffe57e6b49bf0e6a098cc4574ba2b979f8894c8016ef276ce250aaf723f1c4a910e44fe9b4868af66b3cadd2a989b3428

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\b704a93a48716895f924221cc63e3bec2f9681b92cfe4b9176f1cf98ce77ce74.exe
    "C:\Users\Admin\AppData\Local\Temp\b704a93a48716895f924221cc63e3bec2f9681b92cfe4b9176f1cf98ce77ce74.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:2600
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1232
  • 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:2156
  • 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:2680

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2600-130-0x00000000779A0000-0x00000000779A1000-memory.dmp
    Filesize

    4KB

  • memory/2600-131-0x0000000077E74000-0x0000000077E76000-memory.dmp
    Filesize

    8KB

  • memory/2600-134-0x000000007540E000-0x000000007540F000-memory.dmp
    Filesize

    4KB

  • memory/2600-135-0x0000000000990000-0x00000000010D2000-memory.dmp
    Filesize

    7.3MB

  • memory/2600-136-0x0000000005F20000-0x0000000006538000-memory.dmp
    Filesize

    6.1MB

  • memory/2600-137-0x00000000013D0000-0x00000000013E2000-memory.dmp
    Filesize

    72KB

  • memory/2600-138-0x0000000005A10000-0x0000000005B1A000-memory.dmp
    Filesize

    1.0MB

  • memory/2600-139-0x00000000058F0000-0x00000000058F1000-memory.dmp
    Filesize

    4KB

  • memory/2600-140-0x0000000005940000-0x000000000597C000-memory.dmp
    Filesize

    240KB