Analysis

  • max time kernel
    142s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-01-2024 01:14

General

  • Target

    8b7240910326218e895b469398b4e98443ba8aba78e17270659050fb7562f930.exe

  • Size

    592KB

  • MD5

    52c389a5c951fa6b0c5636ece3b9a4cc

  • SHA1

    7ea98e6dc3113e1bb7a89a4b8c3f29f770163b68

  • SHA256

    8b7240910326218e895b469398b4e98443ba8aba78e17270659050fb7562f930

  • SHA512

    6bdbd1dfd21f7db0682972502e632fa006843db79c46265e8199c75f69458ecf6506c3c5b8424d465d004483897056739e2edb73b821205b48a0d7fb6b48f38d

  • SSDEEP

    12288:gZhhKDNUUA7ZLJLUf9snBS4csPYae6qfzRAA:gZCxUF7hhUF54clNf7RB

Malware Config

Signatures

  • Detects Echelon Stealer payload 1 IoCs
  • Echelon

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

  • Stops running service(s) 3 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • 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.

  • Looks up external IP address via web service 3 IoCs

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

  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 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\8b7240910326218e895b469398b4e98443ba8aba78e17270659050fb7562f930.exe
    "C:\Users\Admin\AppData\Local\Temp\8b7240910326218e895b469398b4e98443ba8aba78e17270659050fb7562f930.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:4932
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c sc stop "MpsSvc"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3396
      • C:\Windows\system32\sc.exe
        sc stop "MpsSvc"
        3⤵
        • Launches sc.exe
        PID:8

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Impair Defenses

1
T1562

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Impact

Service Stop

1
T1489

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4932-0-0x00000240D69E0000-0x00000240D6A7A000-memory.dmp
    Filesize

    616KB

  • memory/4932-1-0x00007FFB9CCA0000-0x00007FFB9D761000-memory.dmp
    Filesize

    10.8MB

  • memory/4932-2-0x00000240D8630000-0x00000240D8640000-memory.dmp
    Filesize

    64KB

  • memory/4932-3-0x00000240F13C0000-0x00000240F1436000-memory.dmp
    Filesize

    472KB

  • memory/4932-33-0x00007FFB9CCA0000-0x00007FFB9D761000-memory.dmp
    Filesize

    10.8MB