Resubmissions

10-07-2024 12:56

240710-p6khfs1eng 10

10-07-2024 12:56

240710-p6ft9s1end 10

10-07-2024 12:55

240710-p57llaygpj 10

Analysis

  • max time kernel
    56s
  • max time network
    63s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-07-2024 12:55

General

  • Target

    62548c66d11776c84706553bdd76afd7248d2c3e69b0f47215c0dc307f0dd06a.exe

  • Size

    438KB

  • MD5

    9afb4103021c5ec8b2dea2772f39178e

  • SHA1

    bc773e17fc6e7080b4243a9b72ac75292d17bc90

  • SHA256

    62548c66d11776c84706553bdd76afd7248d2c3e69b0f47215c0dc307f0dd06a

  • SHA512

    82c5fd97d80bd79c0377b1c8ea3a6e2f00f10b7ae14febc0ba9c8e5bd1405c05f62f2c66db1571b0596bd0a459e32dd58c8e9bf894068418d5b40b54b488ef33

  • SSDEEP

    12288:LW7Ck8jvhUX7Arm+PJnGdijUR9MEuqbZv:LWeLaQnhGEYjfhbZv

Malware Config

Signatures

  • 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 2 IoCs
  • Adds Run key to start application 2 TTPs 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\62548c66d11776c84706553bdd76afd7248d2c3e69b0f47215c0dc307f0dd06a.exe
    "C:\Users\Admin\AppData\Local\Temp\62548c66d11776c84706553bdd76afd7248d2c3e69b0f47215c0dc307f0dd06a.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:1420
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\caspol.exe
      "C:\Users\Admin\AppData\Local\Temp\62548c66d11776c84706553bdd76afd7248d2c3e69b0f47215c0dc307f0dd06a.exe"
      2⤵
      • Checks QEMU agent file
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:4636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsgAFB9.tmp\System.dll

    Filesize

    11KB

    MD5

    2ae993a2ffec0c137eb51c8832691bcb

    SHA1

    98e0b37b7c14890f8a599f35678af5e9435906e1

    SHA256

    681382f3134de5c6272a49dd13651c8c201b89c247b471191496e7335702fa59

    SHA512

    2501371eb09c01746119305ba080f3b8c41e64535ff09cee4f51322530366d0bd5322ea5290a466356598027e6cda8ab360caef62dcaf560d630742e2dd9bcd9

  • memory/1420-14-0x0000000004190000-0x0000000005038000-memory.dmp

    Filesize

    14.7MB

  • memory/1420-15-0x0000000077D31000-0x0000000077E51000-memory.dmp

    Filesize

    1.1MB

  • memory/1420-16-0x0000000010004000-0x0000000010005000-memory.dmp

    Filesize

    4KB

  • memory/1420-21-0x0000000004190000-0x0000000005038000-memory.dmp

    Filesize

    14.7MB

  • memory/4636-17-0x00000000011B0000-0x0000000002058000-memory.dmp

    Filesize

    14.7MB

  • memory/4636-19-0x0000000077DB8000-0x0000000077DB9000-memory.dmp

    Filesize

    4KB

  • memory/4636-20-0x0000000077D31000-0x0000000077E51000-memory.dmp

    Filesize

    1.1MB

  • memory/4636-28-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/4636-29-0x00000000011B0000-0x0000000002058000-memory.dmp

    Filesize

    14.7MB