Analysis

  • max time kernel
    170s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    15-02-2022 14:53

General

  • Target

    25e5c1bba7e90a8fb32feef0f46b80eef859b4224dad980143dbfa8f1bd19764.exe

  • Size

    2.8MB

  • MD5

    515c703403c6040c977ecf16ead9a919

  • SHA1

    a9d52981f413333b2b26f51cfa9b94fb1a329469

  • SHA256

    25e5c1bba7e90a8fb32feef0f46b80eef859b4224dad980143dbfa8f1bd19764

  • SHA512

    88ef15f475036e3eebcf7f69375b01bcec5d0dbadddc0715200fbed1e442a73bf7fb635b83598a5d1dabe14f274da8802988e067d6eb921a4e6d6fefc4ab5c59

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\25e5c1bba7e90a8fb32feef0f46b80eef859b4224dad980143dbfa8f1bd19764.exe
    "C:\Users\Admin\AppData\Local\Temp\25e5c1bba7e90a8fb32feef0f46b80eef859b4224dad980143dbfa8f1bd19764.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:4940
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:2208
  • 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:3928

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2208-144-0x00000259B9D20000-0x00000259B9D30000-memory.dmp

    Filesize

    64KB

  • memory/2208-146-0x00000259BC440000-0x00000259BC444000-memory.dmp

    Filesize

    16KB

  • memory/2208-145-0x00000259B9D80000-0x00000259B9D90000-memory.dmp

    Filesize

    64KB

  • memory/4940-139-0x0000000005E30000-0x0000000006448000-memory.dmp

    Filesize

    6.1MB

  • memory/4940-137-0x000000007523E000-0x000000007523F000-memory.dmp

    Filesize

    4KB

  • memory/4940-138-0x00000000001B0000-0x000000000090C000-memory.dmp

    Filesize

    7.4MB

  • memory/4940-130-0x0000000077750000-0x0000000077751000-memory.dmp

    Filesize

    4KB

  • memory/4940-140-0x00000000056B0000-0x00000000056C2000-memory.dmp

    Filesize

    72KB

  • memory/4940-141-0x0000000005810000-0x000000000591A000-memory.dmp

    Filesize

    1.0MB

  • memory/4940-142-0x0000000005800000-0x0000000005801000-memory.dmp

    Filesize

    4KB

  • memory/4940-143-0x0000000005710000-0x000000000574C000-memory.dmp

    Filesize

    240KB

  • memory/4940-132-0x0000000077750000-0x0000000077751000-memory.dmp

    Filesize

    4KB

  • memory/4940-133-0x0000000077CA4000-0x0000000077CA6000-memory.dmp

    Filesize

    8KB

  • memory/4940-131-0x0000000077750000-0x0000000077751000-memory.dmp

    Filesize

    4KB