Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    26-09-2021 19:08

General

  • Target

    SecuriteInfo.com.Variant.Razy.945356.15791.15020.exe

  • Size

    3.0MB

  • MD5

    4d16d5c87a59de89bc4c2e4c8e35f87d

  • SHA1

    92ce5bf5e0caba22bfc7a2733355627c4fe363c7

  • SHA256

    f7ed4e6663e464417a8c11a641c2935ca324ad6c4aaa418a323991cd9bff70e1

  • SHA512

    ed4f3fbe817f2cf244b076b7cde6c8f29bb02bf79bbcb98a136c7f2ca9fbdb7e427064d3b4aa15d72b4d05d01c68dba83638420e9e1563d218ef15d65f90fd02

Malware Config

Signatures

  • 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.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Themida packer 1 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Razy.945356.15791.15020.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Razy.945356.15791.15020.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1272

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1272-54-0x00000000767F1000-0x00000000767F3000-memory.dmp
    Filesize

    8KB

  • memory/1272-56-0x0000000000B40000-0x0000000000B41000-memory.dmp
    Filesize

    4KB

  • memory/1272-58-0x0000000005390000-0x0000000005391000-memory.dmp
    Filesize

    4KB