Analysis

  • max time kernel
    124s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-08-2023 07:35

General

  • Target

    shk098654578.exe

  • Size

    405KB

  • MD5

    9a9100bb44845bdca0f6f2c7fcd09c28

  • SHA1

    da89801f49adaa1f864ba8ddb0c7526d1d5d81fe

  • SHA256

    efae2917baa8189a375577739cd5d6bf9b759ff81fe27b779dfa6b0d53eecea3

  • SHA512

    f12e7d9f5a55191c69be2ee09d95055c698e6488d33e77a3332a19714bc4b29147eeeb45e977a00c7f0f7c89ad182a84417aed8db838e0cfdd73b8327a1e8245

  • SSDEEP

    12288:VId24YQIrcxfY/5jfC4EONn0zFQUOrBN:VTYIwBY/5TNnWQUOrr

Score
10/10

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sienkakupeste.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    010203sienka++

Signatures

  • 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.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\shk098654578.exe
    "C:\Users\Admin\AppData\Local\Temp\shk098654578.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:236
    • C:\Users\Admin\AppData\Local\Temp\shk098654578.exe
      "C:\Users\Admin\AppData\Local\Temp\shk098654578.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3800

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/236-142-0x0000000074B70000-0x0000000075320000-memory.dmp

    Filesize

    7.7MB

  • memory/236-134-0x0000000000580000-0x00000000005EA000-memory.dmp

    Filesize

    424KB

  • memory/236-135-0x00000000055E0000-0x0000000005B84000-memory.dmp

    Filesize

    5.6MB

  • memory/236-136-0x00000000050D0000-0x0000000005162000-memory.dmp

    Filesize

    584KB

  • memory/236-137-0x0000000005170000-0x000000000520C000-memory.dmp

    Filesize

    624KB

  • memory/236-138-0x00000000028F0000-0x0000000002900000-memory.dmp

    Filesize

    64KB

  • memory/236-133-0x0000000074B70000-0x0000000075320000-memory.dmp

    Filesize

    7.7MB

  • memory/3800-139-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/3800-141-0x0000000074B70000-0x0000000075320000-memory.dmp

    Filesize

    7.7MB

  • memory/3800-143-0x0000000005010000-0x0000000005020000-memory.dmp

    Filesize

    64KB

  • memory/3800-144-0x00000000061C0000-0x0000000006210000-memory.dmp

    Filesize

    320KB

  • memory/3800-145-0x00000000063E0000-0x00000000065A2000-memory.dmp

    Filesize

    1.8MB

  • memory/3800-146-0x0000000074B70000-0x0000000075320000-memory.dmp

    Filesize

    7.7MB

  • memory/3800-147-0x0000000006310000-0x000000000631A000-memory.dmp

    Filesize

    40KB