Analysis

  • max time kernel
    146s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    15-02-2022 11:42

General

  • Target

    85f2c35da19cf828bb26a96e13780cdacfc24d08386f9a8fb0d29dd1decf542c.exe

  • Size

    3.3MB

  • MD5

    e76547e3e5f1ef9224631f883bf86a01

  • SHA1

    1429f3f4e095c61e96b142cdf142dec69ea37754

  • SHA256

    85f2c35da19cf828bb26a96e13780cdacfc24d08386f9a8fb0d29dd1decf542c

  • SHA512

    2a9e9f9ff6dab49884416f999ddecdfbb440be83c4e7c2bb79730b63bc97416258f43426899fa314221866eaacf28ead09eff3cc06955ab04fd55466af9e4536

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\85f2c35da19cf828bb26a96e13780cdacfc24d08386f9a8fb0d29dd1decf542c.exe
    "C:\Users\Admin\AppData\Local\Temp\85f2c35da19cf828bb26a96e13780cdacfc24d08386f9a8fb0d29dd1decf542c.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:2708
  • 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:1284
  • 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:3432

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1284-142-0x000001F8E9B20000-0x000001F8E9B30000-memory.dmp
    Filesize

    64KB

  • memory/1284-143-0x000001F8E9B80000-0x000001F8E9B90000-memory.dmp
    Filesize

    64KB

  • memory/1284-144-0x000001F8EC240000-0x000001F8EC244000-memory.dmp
    Filesize

    16KB

  • memory/2708-130-0x0000000075F60000-0x0000000075F61000-memory.dmp
    Filesize

    4KB

  • memory/2708-131-0x0000000077C54000-0x0000000077C56000-memory.dmp
    Filesize

    8KB

  • memory/2708-135-0x00000000751EE000-0x00000000751EF000-memory.dmp
    Filesize

    4KB

  • memory/2708-136-0x0000000000230000-0x0000000000B1A000-memory.dmp
    Filesize

    8.9MB

  • memory/2708-137-0x0000000006030000-0x0000000006648000-memory.dmp
    Filesize

    6.1MB

  • memory/2708-138-0x00000000058C0000-0x00000000058D2000-memory.dmp
    Filesize

    72KB

  • memory/2708-139-0x0000000005A10000-0x0000000005B1A000-memory.dmp
    Filesize

    1.0MB

  • memory/2708-140-0x0000000005920000-0x000000000595C000-memory.dmp
    Filesize

    240KB

  • memory/2708-141-0x0000000005A00000-0x0000000005A01000-memory.dmp
    Filesize

    4KB