Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-01-2025 14:42

General

  • Target

    e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe

  • Size

    1014KB

  • MD5

    dcae922f4d3c1946b3c41158be23dc2a

  • SHA1

    13e891bfc3bcd410b284986d7baf8672255dcbdb

  • SHA256

    e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7

  • SHA512

    ac317944427780966288021cb61caa6de9c9d13875ae1150d7076b3322b6c6d28ff1245d9c8127b3ce7144c86a5b209e87b2f29822f2e732b147811fcc241281

  • SSDEEP

    24576:9jwKCNK6KMnoaM5I4CSyH8xkAkXeWEhXBSqwGB7e7aP0Xl4jI61GPVSMrL:V1CvVnoatIkLs1wGaaP0XejI6cSMrL

Malware Config

Signatures

  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Disables Task Manager via registry modification
  • Loads dropped DLL 2 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 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • 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 use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe
    "C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2444
    • C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe
      "C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:5012

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsq87C0.tmp\System.dll

    Filesize

    12KB

    MD5

    0d7ad4f45dc6f5aa87f606d0331c6901

    SHA1

    48df0911f0484cbe2a8cdd5362140b63c41ee457

    SHA256

    3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

    SHA512

    c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

  • memory/2444-13-0x00000000032A0000-0x00000000055FC000-memory.dmp

    Filesize

    35.4MB

  • memory/2444-14-0x0000000077C61000-0x0000000077D81000-memory.dmp

    Filesize

    1.1MB

  • memory/2444-15-0x0000000074955000-0x0000000074956000-memory.dmp

    Filesize

    4KB

  • memory/2444-16-0x00000000032A0000-0x00000000055FC000-memory.dmp

    Filesize

    35.4MB

  • memory/5012-17-0x00000000016E0000-0x0000000003A3C000-memory.dmp

    Filesize

    35.4MB

  • memory/5012-30-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/5012-31-0x00000000016E0000-0x0000000003A3C000-memory.dmp

    Filesize

    35.4MB

  • memory/5012-32-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/5012-33-0x0000000000480000-0x000000000049E000-memory.dmp

    Filesize

    120KB

  • memory/5012-34-0x0000000036660000-0x0000000036C04000-memory.dmp

    Filesize

    5.6MB

  • memory/5012-35-0x0000000036C50000-0x0000000036CEC000-memory.dmp

    Filesize

    624KB

  • memory/5012-36-0x00000000370D0000-0x0000000037162000-memory.dmp

    Filesize

    584KB

  • memory/5012-37-0x0000000037180000-0x00000000371D0000-memory.dmp

    Filesize

    320KB

  • memory/5012-39-0x0000000037320000-0x00000000374E2000-memory.dmp

    Filesize

    1.8MB

  • memory/5012-40-0x00000000375A0000-0x00000000375AA000-memory.dmp

    Filesize

    40KB