Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-03-2024 08:04

General

  • Target

    d59bf492da2f21db13264aba7b40f464.exe

  • Size

    1.1MB

  • MD5

    d59bf492da2f21db13264aba7b40f464

  • SHA1

    c69eadf5aa174c34c90445548d5b2d5888957eae

  • SHA256

    4732655de9b6a0497a825ab53ef9e8c3db1a9d1520d1ae505ec2b07df305cef1

  • SHA512

    f781f75e84f88c9aa015644ba5744d5b360951fc753d054f2e999244907baae5a109563c5b4817a2e7ee2f91c2048366552d22364e593503ba8aec05ce4cef59

  • SSDEEP

    12288:74OAp4Hqw3QMrTM6TgMcnFO1sQATEQkhXdwWjgRNKjyjlG7bWsd:74OAp4KQrTMhOGRTodwWjWjlGes

Malware Config

Signatures

  • Detects Echelon Stealer payload 1 IoCs
  • Echelon

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

  • 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.

  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d59bf492da2f21db13264aba7b40f464.exe
    "C:\Users\Admin\AppData\Local\Temp\d59bf492da2f21db13264aba7b40f464.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • outlook_office_path
    • outlook_win_path
    PID:1152
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4172 --field-trial-handle=2264,i,15001568551143786084,90255922961447677,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3444

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    Query Registry

    1
    T1012

    Collection

    Data from Local System

    1
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\RX078BFBFF000306D2A4B55DEC20\20078BFBFF000306D2A4B55DECRX\Browsers\Passwords\Passwords_Edge.txt
      Filesize

      426B

      MD5

      42fa959509b3ed7c94c0cf3728b03f6d

      SHA1

      661292176640beb0b38dc9e7a462518eb592d27d

      SHA256

      870ef3d2370932a8938faa60abd47d75ea0af98bfa11c82ae8efe9e94fd8be00

      SHA512

      7def291737d081c93d0cc38ac8d3062fd34d93b68d191eb0d54e9857e0c0afdbcd241471a2e10c28ce8db3b1d1ae0dba2ef6f609cfe8a1e8fe1dd103dba80007

    • memory/1152-0-0x0000000000FB0000-0x00000000010D8000-memory.dmp
      Filesize

      1.2MB

    • memory/1152-1-0x00007FFD76680000-0x00007FFD77141000-memory.dmp
      Filesize

      10.8MB

    • memory/1152-2-0x0000000003190000-0x00000000031A0000-memory.dmp
      Filesize

      64KB

    • memory/1152-49-0x00007FFD76680000-0x00007FFD77141000-memory.dmp
      Filesize

      10.8MB

    • memory/1152-50-0x0000000003190000-0x00000000031A0000-memory.dmp
      Filesize

      64KB

    • memory/1152-73-0x000000001CA70000-0x000000001CA92000-memory.dmp
      Filesize

      136KB

    • memory/1152-86-0x00007FFD76680000-0x00007FFD77141000-memory.dmp
      Filesize

      10.8MB