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Analysis

  • max time kernel
    148s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/02/2025, 13:10

General

  • Target

    Order00129388475678930001.exe

  • Size

    542KB

  • MD5

    a81990bb342611261db37a0eecab1a3a

  • SHA1

    f848c1ff34bdbb82199de22c4c49d8ebef790031

  • SHA256

    858688510aeff9e47282692cccf72d58fe45b6bc128b49f3f5248d11e54f771c

  • SHA512

    bd6f57bef5b21e651bb7de998640a961a6fabb2fc1073a2aa1867f4feffd405fff127bed2fccbf9f564a977ce938b7a47151c917b7e65a7afb78a71f914e5205

  • SSDEEP

    12288:9bLlN73eJi4xLl7K3m1Ux4kRBA9/PxCGGd/9hKVZFDN:9bzSJikm7BA9/PxOd3KD

Malware Config

Signatures

  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 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 3 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 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
  • Drops file in Program Files directory 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 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Order00129388475678930001.exe
    "C:\Users\Admin\AppData\Local\Temp\Order00129388475678930001.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Users\Admin\AppData\Local\Temp\Order00129388475678930001.exe
      "C:\Users\Admin\AppData\Local\Temp\Order00129388475678930001.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:4208

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsg145F.tmp\System.dll

    Filesize

    12KB

    MD5

    cff85c549d536f651d4fb8387f1976f2

    SHA1

    d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

    SHA256

    8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

    SHA512

    531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

  • memory/4208-19-0x0000000072DBE000-0x0000000072DBF000-memory.dmp

    Filesize

    4KB

  • memory/4208-23-0x0000000072DB0000-0x0000000073560000-memory.dmp

    Filesize

    7.7MB

  • memory/4208-30-0x0000000072DB0000-0x0000000073560000-memory.dmp

    Filesize

    7.7MB

  • memory/4208-13-0x00000000016E0000-0x0000000005019000-memory.dmp

    Filesize

    57.2MB

  • memory/4208-14-0x0000000077C28000-0x0000000077C29000-memory.dmp

    Filesize

    4KB

  • memory/4208-15-0x0000000077C45000-0x0000000077C46000-memory.dmp

    Filesize

    4KB

  • memory/4208-17-0x0000000077BA1000-0x0000000077CC1000-memory.dmp

    Filesize

    1.1MB

  • memory/4208-16-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/4208-29-0x0000000072DBE000-0x0000000072DBF000-memory.dmp

    Filesize

    4KB

  • memory/4208-28-0x0000000038B80000-0x0000000038B8A000-memory.dmp

    Filesize

    40KB

  • memory/4208-22-0x0000000037A60000-0x0000000037AFC000-memory.dmp

    Filesize

    624KB

  • memory/4208-21-0x0000000037B80000-0x0000000038124000-memory.dmp

    Filesize

    5.6MB

  • memory/4208-20-0x0000000000480000-0x000000000049E000-memory.dmp

    Filesize

    120KB

  • memory/4208-18-0x00000000016E0000-0x0000000005019000-memory.dmp

    Filesize

    57.2MB

  • memory/4208-25-0x00000000381D0000-0x0000000038220000-memory.dmp

    Filesize

    320KB

  • memory/4208-26-0x00000000388B0000-0x0000000038A72000-memory.dmp

    Filesize

    1.8MB

  • memory/4208-27-0x0000000038A80000-0x0000000038B12000-memory.dmp

    Filesize

    584KB

  • memory/4472-12-0x0000000074A05000-0x0000000074A06000-memory.dmp

    Filesize

    4KB

  • memory/4472-10-0x0000000077BA1000-0x0000000077CC1000-memory.dmp

    Filesize

    1.1MB

  • memory/4472-11-0x0000000077BA1000-0x0000000077CC1000-memory.dmp

    Filesize

    1.1MB