Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    28/05/2026, 14:27

General

  • Target
    06ec46f6d1f609aeafb8e8f5be8d12f8874902661394ce04094249558237c29d.exe
  • Size 502KB
  • Sample260528-rssysaaz8n
  • SHA256 06ec46f6d1f609aeafb8e8f5be8d12f8874902661394ce04094249558237c29d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 2 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: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\06ec46f6d1f609aeafb8e8f5be8d12f8874902661394ce04094249558237c29d.exe
    "C:\Users\Admin\AppData\Local\Temp\06ec46f6d1f609aeafb8e8f5be8d12f8874902661394ce04094249558237c29d.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:4868
    • C:\Users\Admin\AppData\Local\Temp\06ec46f6d1f609aeafb8e8f5be8d12f8874902661394ce04094249558237c29d.exe
      "C:\Users\Admin\AppData\Local\Temp\06ec46f6d1f609aeafb8e8f5be8d12f8874902661394ce04094249558237c29d.exe"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      PID:448

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        nsa1ED3.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsa1ED3.tmp
        • Size 7B
        • SHA256 639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713
        • MD5 SHA1 SHA512

        nsa1ED3.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsa1ED3.tmp
        • Size 8B
        • SHA256 1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101
        • MD5 SHA1 SHA512

        nsa1ED3.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsa1ED3.tmp
        • Size 17B
        • SHA256 1a5bf931879e4348adaa5a155208f1c1329c3d12c1b51006098190a595a02a9d
        • MD5 SHA1 SHA512

        nsa1ED3.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsa1ED3.tmp
        • Size 26B
        • SHA256 2e731782503bbf3b2fa333ff6e2da7c873dfeb1d11a25c5e7a013c11fb7028a1
        • MD5 SHA1 SHA512

        nsa1ED3.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsa1ED3.tmp
        • Size 35B
        • SHA256 9cf64bdf08c5cdad7d6fe5c5c6d0338007777492cfcae3d0d4a1044dabbd6cf6
        • MD5 SHA1 SHA512

        nsa1ED3.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsa1ED3.tmp
        • Size 43B
        • SHA256 d1113fc1a636fc4c12efb9b96320ff3d272c39417ea9528a957a54e84bf0deda
        • MD5 SHA1 SHA512

        nsa1ED3.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsa1ED3.tmp
        • Size 56B
        • SHA256 bdedfa3075b3e133c71a5abeec7ab86880dd5ca8503cc6a5fac86b257dc5f1cf
        • MD5 SHA1 SHA512 TLSH

        nsf1E06.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsf1E06.tmp
        • Size 26B
        • SHA256 0b50a60cc7418cc1aec43be27dad966a1cf62eea10f825cb93d62b265c7e5dd7
        • MD5 SHA1 SHA512

        nsf1E06.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsf1E06.tmp
        • Size 23B
        • SHA256 6f470f6196119f505cd2d1b132c50c06fd6522bbd6ffc95b992212093221b637
        • MD5 SHA1 SHA512

        nsf1E06.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsf1E06.tmp
        • Size 28B
        • SHA256 334995ac57ad095abcfa5ba0e9216285fc87f9026ea3ef2c67a42d1ed7ddf855
        • MD5 SHA1 SHA512

        nsf1E06.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsf1E06.tmp
        • Size 45B
        • SHA256 a66d886953526d5601da515e1aa53a3f8cbc829aedd557cdf4d0f9573793486e
        • MD5 SHA1 SHA512

        nsf1E06.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsf1E06.tmp
        • Size 48B
        • SHA256 454a97bbcd88c00fd8617e38fec2ebc855a608adbb751ad5ce4355f6bd171c32
        • MD5 SHA1 SHA512

        nsf1E06.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsf1E06.tmp
        • Size 49B
        • SHA256 bbd283b5a658ac95e8811c820de41f911e7559e982d9378b5b14c3f7cb5ccb6d
        • MD5 SHA1 SHA512

        nsk1F60.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsk1F60.tmp
        • Size 30B
        • SHA256 c87f2ff45bb530577fb8856df1760edaf1060ae4ee2934b17fdd21b7d116f043
        • MD5 SHA1 SHA512

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsp1DF5.tmp\System.dll
        • Size 11KB
        • SHA256 44e5dfd551b38e886214bd6b9c8ee913c4c4d1f085a6575d97c3e892b925da82
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nsu1D77.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1D77.tmp
        • Size 60B
        • SHA256 a8131e5fa3f1e8a7e35a248fb3da529eb2885731ca6687bac3278f53a698850c
        • MD5 SHA1 SHA512 TLSH

        nsu1D77.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1D77.tmp
        • Size 74B
        • SHA256 d3c781a1855c8a70f5aca88d9e2c92afffa80541334731f62caa9494aa8a0c36
        • MD5 SHA1 SHA512 TLSH

        nsu1D77.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1D77.tmp
        • Size 29B
        • SHA256 3f1b5b4bbb2d866c8c62ef732346f0dd6843cbdb2aed403f041509d0657c8b77
        • MD5 SHA1 SHA512

        nsu1D77.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1D77.tmp
        • Size 28B
        • SHA256 bb92b5197bb4677950b78f816a8170797d0392af55e31d0f0744fe9c99f7e9b8
        • MD5 SHA1 SHA512

        nsu1D77.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1D77.tmp
        • Size 33B
        • SHA256 0ca259e86b73dc8d2f375e3860b6bf91b78b3680b5b90c262fdd82432492a77a
        • MD5 SHA1 SHA512

        nsu1D77.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1D77.tmp
        • Size 34B
        • SHA256 c9eb8d8cea8dd215bb20f4674c6b4b3ea865cc9390eb982c501af89142dfd95d
        • MD5 SHA1 SHA512

        nsu1D77.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1D77.tmp
        • Size 47B
        • SHA256 4d9933ad3cb07723bac43a5c519fb12e5950334cf688b284acdfa4d8931d5620
        • MD5 SHA1 SHA512

        nsu1E64.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1E64.tmp
        • Size 1B
        • SHA256 8254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a
        • MD5 SHA1 SHA512

        nsu1E64.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1E64.tmp
        • Size 2B
        • SHA256 8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc
        • MD5 SHA1 SHA512

        nsu1E64.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1E64.tmp
        • Size 3B
        • SHA256 01a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d
        • MD5 SHA1 SHA512

        nsu1E64.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1E64.tmp
        • Size 4B
        • SHA256 65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d
        • MD5 SHA1 SHA512

        nsu1E64.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1E64.tmp
        • Size 18B
        • SHA256 1630fc3705a57982a8939a6550615a92d8998f0c3394caeca0ae3019427ec50a
        • MD5 SHA1 SHA512

        nsu1E64.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1E64.tmp
        • Size 26B
        • SHA256 47c3200448acdbbc900646793f4e4bee95b3967eb7b2c1f5dfb5ced4277ba5fb
        • MD5 SHA1 SHA512

        nsu1E64.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1E64.tmp
        • Size 42B
        • SHA256 1f2b5dae96dd8d304b9e15b18cfa97b739eae048ecf0e81c7b4d7e0a4cf6359b
        • MD5 SHA1 SHA512

        nsu1E64.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1E64.tmp
        • Size 53B
        • SHA256 4c6b8ff4b70939ee43faf81fbe415892339a2163b7302e55ac82d82f1c284683
        • MD5 SHA1 SHA512 TLSH

        nsu1E64.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsu1E64.tmp
        • Size 60B
        • SHA256 58441afb24ac1fe610a47e89d0848865842be2383ab88c06d31fd70eec7ce470
        • MD5 SHA1 SHA512 TLSH

        memory/448-570-0x0000000000400000-0x0000000001717000-memory.dmp

        memory/448-572-0x0000000001720000-0x0000000002A9A000-memory.dmp

        memory/448-573-0x00000000776D8000-0x00000000776D9000-memory.dmp

        memory/448-574-0x000000007776B000-0x000000007776C000-memory.dmp

        memory/448-575-0x0000000001720000-0x0000000002A9A000-memory.dmp

        memory/448-576-0x0000000000400000-0x0000000001717000-memory.dmp

        memory/448-577-0x000000007776B000-0x000000007776C000-memory.dmp

        memory/4868-568-0x00000000056A0000-0x0000000006A1A000-memory.dmp

        memory/4868-569-0x0000000010004000-0x0000000010005000-memory.dmp

        memory/4868-571-0x00000000056A0000-0x0000000006A1A000-memory.dmp

        memory/4868-583-0x00000000056A0000-0x0000000006A1A000-memory.dmp