Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    07/08/2023, 06:44

General

  • Target

    WB Documents No-285380XXX.exe

  • Size

    299KB

  • MD5

    ea503ada337d9eb0a65a43df7de04256

  • SHA1

    0168df2069b1cce3924cdb29d8be7b46c3b2cdec

  • SHA256

    6065cbb9fb0ae29dbdeca23edc1869c329d71fa17cce27daead9fdfec4b48c42

  • SHA512

    1b241d77e6642584635add27db901ef04667cb8dc6892797bba6f7ac2e80bb72e7aae5275b9b94f8ad7660da163b2d86526df12d326861cb6697f5370e13bcf5

  • SSDEEP

    6144:TQ606x7lsJ88LxX9BLPQtAfFADvrHdwJzYTFETjPPtzETIKZFFRh:368sxX9Jb6fqYTFETjPP+FF5

Score
10/10

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Checks QEMU agent file 2 TTPs 1 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Loads dropped DLL 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\WB Documents No-285380XXX.exe
    "C:\Users\Admin\AppData\Local\Temp\WB Documents No-285380XXX.exe"
    1⤵
    • Checks QEMU agent file
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    PID:2472

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\nsy7EE1.tmp\System.dll

          Filesize

          11KB

          MD5

          9625d5b1754bc4ff29281d415d27a0fd

          SHA1

          80e85afc5cccd4c0a3775edbb90595a1a59f5ce0

          SHA256

          c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448

          SHA512

          dce52b640897c2e8dbfd0a1472d5377fa91fb9cf1aeff62604d014bccbe5b56af1378f173132abeb0edd18c225b9f8f5e3d3e72434aed946661e036c779f165b

        • \Users\Admin\AppData\Local\Temp\nsy7EE1.tmp\System.dll

          Filesize

          11KB

          MD5

          9625d5b1754bc4ff29281d415d27a0fd

          SHA1

          80e85afc5cccd4c0a3775edbb90595a1a59f5ce0

          SHA256

          c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448

          SHA512

          dce52b640897c2e8dbfd0a1472d5377fa91fb9cf1aeff62604d014bccbe5b56af1378f173132abeb0edd18c225b9f8f5e3d3e72434aed946661e036c779f165b

        • \Users\Admin\AppData\Local\Temp\nsy7EE1.tmp\System.dll

          Filesize

          11KB

          MD5

          9625d5b1754bc4ff29281d415d27a0fd

          SHA1

          80e85afc5cccd4c0a3775edbb90595a1a59f5ce0

          SHA256

          c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448

          SHA512

          dce52b640897c2e8dbfd0a1472d5377fa91fb9cf1aeff62604d014bccbe5b56af1378f173132abeb0edd18c225b9f8f5e3d3e72434aed946661e036c779f165b

        • memory/2472-66-0x00000000027A0000-0x00000000056A3000-memory.dmp

          Filesize

          47.0MB

        • memory/2472-67-0x0000000077020000-0x00000000771C9000-memory.dmp

          Filesize

          1.7MB

        • memory/2472-68-0x0000000077210000-0x00000000772E6000-memory.dmp

          Filesize

          856KB

        • memory/2472-69-0x00000000027A0000-0x00000000056A3000-memory.dmp

          Filesize

          47.0MB