Analysis

  • max time kernel
    40s
  • max time network
    52s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    17/08/2021, 09:33

Errors

Reason
Remote task has failed: Machine shutdown

General

  • Target
    d8d1192b054172a5421790d411f0f949.exe
  • Size 276KB
  • Sample210817-da9hz7ff16
  • SHA256 881809c7838ffda4805b1968e37c25dd5f1d9d02a6a2aadb7695705167d45cd2
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://aucmoney.com/upload/

  • http://thegymmum.com/upload/

  • http://atvcampingtrips.com/upload/

  • http://kuapakualaman.com/upload/

  • http://renatazarazua.com/upload/

  • http://nasufmutlu.com/upload/

rc4.i32
rc4.i32

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 1 IoCs
  • Themida packer 3 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d8d1192b054172a5421790d411f0f949.exe
    "C:\Users\Admin\AppData\Local\Temp\d8d1192b054172a5421790d411f0f949.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3916
  • C:\Users\Admin\AppData\Local\Temp\D15F.exe
    C:\Users\Admin\AppData\Local\Temp\D15F.exe
    1⤵
    • Executes dropped EXE
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of AdjustPrivilegeToken
    PID:2256
  • C:\Users\Admin\AppData\Local\Temp\DEBE.exe
    C:\Users\Admin\AppData\Local\Temp\DEBE.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:2024

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/2024-129-0x0000000005C10000-0x0000000005C11000-memory.dmp

        memory/2024-132-0x0000000005C70000-0x0000000005C71000-memory.dmp

        memory/2024-131-0x0000000005C80000-0x0000000005C81000-memory.dmp

        memory/2024-130-0x0000000077360000-0x00000000774EE000-memory.dmp

        memory/2024-128-0x0000000005BB0000-0x0000000005BB1000-memory.dmp

        memory/2024-127-0x0000000006290000-0x0000000006291000-memory.dmp

        memory/2024-125-0x00000000008E0000-0x00000000008E1000-memory.dmp

        memory/2256-121-0x0000000000400000-0x00000000023FF000-memory.dmp

        memory/2256-120-0x0000000002520000-0x000000000266A000-memory.dmp

        memory/2824-116-0x0000000000F40000-0x0000000000F56000-memory.dmp

        memory/3916-115-0x0000000000400000-0x00000000008FB000-memory.dmp

        memory/3916-114-0x0000000000030000-0x0000000000039000-memory.dmp