Analysis

  • max time kernel
    4294183s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    19-03-2022 19:16

General

  • Target

    9080bc4976e84352e150192b485256e801d9c62a6675bf564b226c8ce95eba93.exe

  • Size

    2.4MB

  • MD5

    a5f9185372c30dca4d5f921f3a8a67cf

  • SHA1

    593d14be593f1b6b6e7c969f5130147e7735a7d2

  • SHA256

    9080bc4976e84352e150192b485256e801d9c62a6675bf564b226c8ce95eba93

  • SHA512

    f6f99b3bf1f20fa5f30d778016d1b2245f89f826957db083e98570038a4d0c7fde57f84f326ece15a0855c1af797a3feb28901a1deb887e802113483ed8d3029

Malware Config

Signatures

  • Echelon

    Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.

  • Echelon log file 1 IoCs

    Detects a log file produced by Echelon.

  • 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.

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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
  • Looks up external IP address via web service 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 13 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9080bc4976e84352e150192b485256e801d9c62a6675bf564b226c8ce95eba93.exe
    "C:\Users\Admin\AppData\Local\Temp\9080bc4976e84352e150192b485256e801d9c62a6675bf564b226c8ce95eba93.exe"
    1⤵
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Accesses Microsoft Outlook profiles
    • Checks whether UAC is enabled
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:2016
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 1164
      2⤵
      • Program crash
      PID:1784

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Bootkit

1
T1067

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2016-54-0x0000000075271000-0x0000000075273000-memory.dmp
    Filesize

    8KB

  • memory/2016-56-0x0000000077070000-0x00000000771F0000-memory.dmp
    Filesize

    1.5MB

  • memory/2016-57-0x0000000074840000-0x000000007488A000-memory.dmp
    Filesize

    296KB

  • memory/2016-58-0x0000000074830000-0x000000007483B000-memory.dmp
    Filesize

    44KB

  • memory/2016-59-0x0000000074750000-0x0000000074759000-memory.dmp
    Filesize

    36KB

  • memory/2016-60-0x0000000000310000-0x0000000000978000-memory.dmp
    Filesize

    6.4MB

  • memory/2016-61-0x0000000000310000-0x0000000000978000-memory.dmp
    Filesize

    6.4MB