Analysis

  • max time kernel
    43s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06-02-2023 19:40

General

  • Target

    modest-menu.exe

  • Size

    14MB

  • MD5

    ac062fc9712de55c8c888d6d7fe40c4b

  • SHA1

    2be787ad29f7b783b24ec925153967f4206adacd

  • SHA256

    e388f58cb819d7d603ab71b8909a439ee9e4ac1630c7c64386112a75f2e60966

  • SHA512

    1ad9ecd99df89806fb1b3d7e02343f5297e0379eeef0235bbeb98288788bab9250e20e3c4d3b0a6cbab7a726bfe7dcb1dbd76419d06d7a35d51ad048b5dd450f

  • SSDEEP

    393216:Dl/7prg5lxSqTWgwboGCij0dVMIVibKTWfXuWIQ:R6UqigwboG2JVib7fp

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 7 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\modest-menu.exe
    "C:\Users\Admin\AppData\Local\Temp\modest-menu.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:1972

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/1972-54-0x000000013F5A0000-0x0000000141954000-memory.dmp
    Filesize

    35MB

  • memory/1972-56-0x000000013F5A0000-0x0000000141954000-memory.dmp
    Filesize

    35MB

  • memory/1972-57-0x0000000076F90000-0x0000000077139000-memory.dmp
    Filesize

    1MB

  • memory/1972-58-0x000000013F5A0000-0x0000000141954000-memory.dmp
    Filesize

    35MB

  • memory/1972-59-0x000000013F5A0000-0x0000000141954000-memory.dmp
    Filesize

    35MB

  • memory/1972-60-0x000000013F5A0000-0x0000000141954000-memory.dmp
    Filesize

    35MB

  • memory/1972-61-0x000000013F5A0000-0x0000000141954000-memory.dmp
    Filesize

    35MB

  • memory/1972-62-0x000000013F5A0000-0x0000000141954000-memory.dmp
    Filesize

    35MB

  • memory/1972-63-0x0000000076F90000-0x0000000077139000-memory.dmp
    Filesize

    1MB