Analysis

  • max time kernel
    136s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2023, 16:40

General

  • Target

    ekstre.exe

  • Size

    425KB

  • MD5

    3832b480f61f07e2d06d079d31fc8705

  • SHA1

    25f315d13ade293374cfa9ca620d86c5ca26faf1

  • SHA256

    d1618b8ab6baabcd41e3c9615a95087c609a94ac20625aac79fe23f8842cd4f9

  • SHA512

    5134d887285b68bed9f7461c2949c03ee46b0c17aaecadda1bef282c9ed1d1df65924b8000dec8e57526a2750dfd24a953ad91941be9cc6a89bfd1ccdeeeab61

  • SSDEEP

    6144:xB+pgUvsgje7ILAg2zsFnDMKxhyeELaKQ6zhMcAPn5bEEpdOBW5kcTIHIuIMjCA2:xgnN+4ABzInXKLMcCxESeWacTIHIHCmT

Malware Config

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Checks QEMU agent file 2 TTPs 2 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Loads dropped DLL 21 IoCs
  • 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).

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ekstre.exe
    "C:\Users\Admin\AppData\Local\Temp\ekstre.exe"
    1⤵
    • Checks QEMU agent file
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2188
    • C:\Users\Admin\AppData\Local\Temp\ekstre.exe
      "C:\Users\Admin\AppData\Local\Temp\ekstre.exe"
      2⤵
      • Checks QEMU agent file
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:3356

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\BgImage.dll

    Filesize

    7KB

    MD5

    744f9c42403e9aabde8fc65d40bccd3e

    SHA1

    9ab49924ffa1560e5e3b70b097236a1451945829

    SHA256

    8eb85584031b2e1d74daf372e60a72f767e8861db9d4ca2dc1981511f620e51e

    SHA512

    924cacc1d1dd5260b6adf081bf1bfc83edaf51546af7e2f644ab53152e25889552fc99c50ddc45dc1850d7c165877637df11cd35709a49d57e6201b6f4690244

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\System.dll

    Filesize

    11KB

    MD5

    a4dd044bcd94e9b3370ccf095b31f896

    SHA1

    17c78201323ab2095bc53184aa8267c9187d5173

    SHA256

    2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc

    SHA512

    87335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\System.dll

    Filesize

    11KB

    MD5

    a4dd044bcd94e9b3370ccf095b31f896

    SHA1

    17c78201323ab2095bc53184aa8267c9187d5173

    SHA256

    2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc

    SHA512

    87335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\System.dll

    Filesize

    11KB

    MD5

    a4dd044bcd94e9b3370ccf095b31f896

    SHA1

    17c78201323ab2095bc53184aa8267c9187d5173

    SHA256

    2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc

    SHA512

    87335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\System.dll

    Filesize

    11KB

    MD5

    a4dd044bcd94e9b3370ccf095b31f896

    SHA1

    17c78201323ab2095bc53184aa8267c9187d5173

    SHA256

    2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc

    SHA512

    87335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\System.dll

    Filesize

    11KB

    MD5

    a4dd044bcd94e9b3370ccf095b31f896

    SHA1

    17c78201323ab2095bc53184aa8267c9187d5173

    SHA256

    2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc

    SHA512

    87335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsDialogs.dll

    Filesize

    9KB

    MD5

    0d45588070cf728359055f776af16ec4

    SHA1

    c4375ceb2883dee74632e81addbfa4e8b0c6d84a

    SHA256

    067c77d51df034b4a614f83803140fbf4cd2f8684b88ea8c8acdf163edad085a

    SHA512

    751ebf4c43f100b41f799d0fbf8db118ea8751df029c1f4c4b0daeb0fef200ddf2e41c1c9c55c2dc94f2c841cf6acb7df355e98a2e5877a7797f0f1d41a7e415

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsDialogs.dll

    Filesize

    9KB

    MD5

    0d45588070cf728359055f776af16ec4

    SHA1

    c4375ceb2883dee74632e81addbfa4e8b0c6d84a

    SHA256

    067c77d51df034b4a614f83803140fbf4cd2f8684b88ea8c8acdf163edad085a

    SHA512

    751ebf4c43f100b41f799d0fbf8db118ea8751df029c1f4c4b0daeb0fef200ddf2e41c1c9c55c2dc94f2c841cf6acb7df355e98a2e5877a7797f0f1d41a7e415

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsDialogs.dll

    Filesize

    9KB

    MD5

    0d45588070cf728359055f776af16ec4

    SHA1

    c4375ceb2883dee74632e81addbfa4e8b0c6d84a

    SHA256

    067c77d51df034b4a614f83803140fbf4cd2f8684b88ea8c8acdf163edad085a

    SHA512

    751ebf4c43f100b41f799d0fbf8db118ea8751df029c1f4c4b0daeb0fef200ddf2e41c1c9c55c2dc94f2c841cf6acb7df355e98a2e5877a7797f0f1d41a7e415

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsDialogs.dll

    Filesize

    9KB

    MD5

    0d45588070cf728359055f776af16ec4

    SHA1

    c4375ceb2883dee74632e81addbfa4e8b0c6d84a

    SHA256

    067c77d51df034b4a614f83803140fbf4cd2f8684b88ea8c8acdf163edad085a

    SHA512

    751ebf4c43f100b41f799d0fbf8db118ea8751df029c1f4c4b0daeb0fef200ddf2e41c1c9c55c2dc94f2c841cf6acb7df355e98a2e5877a7797f0f1d41a7e415

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsDialogs.dll

    Filesize

    9KB

    MD5

    0d45588070cf728359055f776af16ec4

    SHA1

    c4375ceb2883dee74632e81addbfa4e8b0c6d84a

    SHA256

    067c77d51df034b4a614f83803140fbf4cd2f8684b88ea8c8acdf163edad085a

    SHA512

    751ebf4c43f100b41f799d0fbf8db118ea8751df029c1f4c4b0daeb0fef200ddf2e41c1c9c55c2dc94f2c841cf6acb7df355e98a2e5877a7797f0f1d41a7e415

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    c5b9fe538654a5a259cf64c2455c5426

    SHA1

    db45505fa041af025de53a0580758f3694b9444a

    SHA256

    7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7

    SHA512

    f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    c5b9fe538654a5a259cf64c2455c5426

    SHA1

    db45505fa041af025de53a0580758f3694b9444a

    SHA256

    7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7

    SHA512

    f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    c5b9fe538654a5a259cf64c2455c5426

    SHA1

    db45505fa041af025de53a0580758f3694b9444a

    SHA256

    7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7

    SHA512

    f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    c5b9fe538654a5a259cf64c2455c5426

    SHA1

    db45505fa041af025de53a0580758f3694b9444a

    SHA256

    7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7

    SHA512

    f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    c5b9fe538654a5a259cf64c2455c5426

    SHA1

    db45505fa041af025de53a0580758f3694b9444a

    SHA256

    7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7

    SHA512

    f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    c5b9fe538654a5a259cf64c2455c5426

    SHA1

    db45505fa041af025de53a0580758f3694b9444a

    SHA256

    7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7

    SHA512

    f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    c5b9fe538654a5a259cf64c2455c5426

    SHA1

    db45505fa041af025de53a0580758f3694b9444a

    SHA256

    7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7

    SHA512

    f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    c5b9fe538654a5a259cf64c2455c5426

    SHA1

    db45505fa041af025de53a0580758f3694b9444a

    SHA256

    7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7

    SHA512

    f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    c5b9fe538654a5a259cf64c2455c5426

    SHA1

    db45505fa041af025de53a0580758f3694b9444a

    SHA256

    7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7

    SHA512

    f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    c5b9fe538654a5a259cf64c2455c5426

    SHA1

    db45505fa041af025de53a0580758f3694b9444a

    SHA256

    7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7

    SHA512

    f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    c5b9fe538654a5a259cf64c2455c5426

    SHA1

    db45505fa041af025de53a0580758f3694b9444a

    SHA256

    7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7

    SHA512

    f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    c5b9fe538654a5a259cf64c2455c5426

    SHA1

    db45505fa041af025de53a0580758f3694b9444a

    SHA256

    7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7

    SHA512

    f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa

  • C:\Users\Admin\AppData\Local\Temp\nsk38C0.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    c5b9fe538654a5a259cf64c2455c5426

    SHA1

    db45505fa041af025de53a0580758f3694b9444a

    SHA256

    7b51372117960e84d6f5eb3a26810cc044ff02283b3d656a0a456b0ab5cb8ea7

    SHA512

    f0f8a5570c01b16e54f47502e867ffbaf162b44a847c0ffc8062d20e9492114229de5d9d2a836da256fd3f9fb493536bdbf148d5308695b16c0e98d20d8926aa

  • C:\Users\Admin\trykimprgneringerne.ini

    Filesize

    41B

    MD5

    c4829906d876f22ae69d5bdf4e401ae9

    SHA1

    4be3cc23f889d83675eb8e412776f425df75ab81

    SHA256

    91543ad310d29d76cf717afcf0fd1db03c798cabd5448940de84516352c5c7cb

    SHA512

    7788e3afabb9e85a1e0f71355535f7ef0694d1ab48a2c94e560671730e36703411532964bd490c0abb835a5f10cb7794ab51f4b162461d0428e6de2de4afae60

  • memory/2188-72-0x0000000003260000-0x0000000003266000-memory.dmp

    Filesize

    24KB

  • memory/2188-69-0x0000000004A10000-0x0000000006E3A000-memory.dmp

    Filesize

    36.2MB

  • memory/2188-70-0x0000000077141000-0x0000000077261000-memory.dmp

    Filesize

    1.1MB

  • memory/2188-71-0x0000000077141000-0x0000000077261000-memory.dmp

    Filesize

    1.1MB

  • memory/2188-68-0x0000000004A10000-0x0000000006E3A000-memory.dmp

    Filesize

    36.2MB

  • memory/3356-75-0x00000000771C8000-0x00000000771C9000-memory.dmp

    Filesize

    4KB

  • memory/3356-74-0x0000000000470000-0x000000000289A000-memory.dmp

    Filesize

    36.2MB

  • memory/3356-73-0x0000000000470000-0x000000000289A000-memory.dmp

    Filesize

    36.2MB

  • memory/3356-76-0x00000000771E5000-0x00000000771E6000-memory.dmp

    Filesize

    4KB

  • memory/3356-83-0x0000000072A80000-0x0000000073CD4000-memory.dmp

    Filesize

    18.3MB

  • memory/3356-84-0x0000000000470000-0x000000000289A000-memory.dmp

    Filesize

    36.2MB

  • memory/3356-85-0x0000000000060000-0x0000000000087000-memory.dmp

    Filesize

    156KB

  • memory/3356-86-0x0000000077141000-0x0000000077261000-memory.dmp

    Filesize

    1.1MB

  • memory/3356-87-0x0000000000470000-0x000000000289A000-memory.dmp

    Filesize

    36.2MB

  • memory/3356-88-0x0000000072A80000-0x0000000073CD4000-memory.dmp

    Filesize

    18.3MB