Analysis

  • max time kernel
    135s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2024 02:44

General

  • Target

    16335a1172a838611368645dab4446c79b750e3159a6d9f95556d420c559f469.exe

  • Size

    482KB

  • MD5

    9aaf0e13931abe17c27dd943b5835937

  • SHA1

    8db76fa143b6e967cc9fe9b9ed441291ca055009

  • SHA256

    16335a1172a838611368645dab4446c79b750e3159a6d9f95556d420c559f469

  • SHA512

    05c9a9ba679f7155208c8928d45797c80c301eb46f3670c30759077ccd5edd6a82798bcb2eea325ab598197c4320277294af9ee51a01ac872755bcf206abdd23

  • SSDEEP

    6144:wXuAPKbX9sDEXfmgVvUKm0RfeFdDcyfXZXTraIyErhT41fG5QDGiu/byyvDuBRgC:wXuBqDEvmYfsDcyfpXpTh5qDGiEv6BC

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    valleycountysar.org
  • Port:
    26
  • Username:
    [email protected]
  • Password:
    fY,FLoadtsiF

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • 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
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\16335a1172a838611368645dab4446c79b750e3159a6d9f95556d420c559f469.exe
    "C:\Users\Admin\AppData\Local\Temp\16335a1172a838611368645dab4446c79b750e3159a6d9f95556d420c559f469.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3280
    • C:\Users\Admin\AppData\Local\Temp\16335a1172a838611368645dab4446c79b750e3159a6d9f95556d420c559f469.exe
      "C:\Users\Admin\AppData\Local\Temp\16335a1172a838611368645dab4446c79b750e3159a6d9f95556d420c559f469.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3824
  • 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 --field-trial-handle=4136,i,3671441404766730751,12082497324212183132,262144 --variations-seed-version --mojo-platform-channel-handle=4124 /prefetch:8
    1⤵
      PID:3628

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    2
    T1552

    Credentials In Files

    2
    T1552.001

    Collection

    Data from Local System

    2
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3280-8-0x0000000005900000-0x0000000005908000-memory.dmp
      Filesize

      32KB

    • memory/3280-6-0x00000000058B0000-0x0000000005904000-memory.dmp
      Filesize

      336KB

    • memory/3280-2-0x0000000005DA0000-0x0000000006344000-memory.dmp
      Filesize

      5.6MB

    • memory/3280-3-0x0000000005730000-0x00000000057C2000-memory.dmp
      Filesize

      584KB

    • memory/3280-0-0x0000000074FBE000-0x0000000074FBF000-memory.dmp
      Filesize

      4KB

    • memory/3280-5-0x0000000005860000-0x000000000586A000-memory.dmp
      Filesize

      40KB

    • memory/3280-1-0x0000000000CD0000-0x0000000000D4E000-memory.dmp
      Filesize

      504KB

    • memory/3280-7-0x0000000005B30000-0x0000000005BCC000-memory.dmp
      Filesize

      624KB

    • memory/3280-4-0x0000000074FB0000-0x0000000075760000-memory.dmp
      Filesize

      7.7MB

    • memory/3280-13-0x0000000074FB0000-0x0000000075760000-memory.dmp
      Filesize

      7.7MB

    • memory/3824-10-0x0000000074FB0000-0x0000000075760000-memory.dmp
      Filesize

      7.7MB

    • memory/3824-11-0x0000000074FB0000-0x0000000075760000-memory.dmp
      Filesize

      7.7MB

    • memory/3824-9-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/3824-14-0x0000000006D70000-0x0000000006DC0000-memory.dmp
      Filesize

      320KB

    • memory/3824-15-0x0000000006F90000-0x0000000007152000-memory.dmp
      Filesize

      1.8MB

    • memory/3824-16-0x0000000074FB0000-0x0000000075760000-memory.dmp
      Filesize

      7.7MB