Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    09-07-2024 09:49

General

  • Target

    118327932 AR_Feb_kazkhstan _2024-v2.exe

  • Size

    697KB

  • MD5

    f2ce50197b4bbb37ea2d92b6375ad39a

  • SHA1

    49453ce5731b600b9459fcd4896cfb22ba85e069

  • SHA256

    2e2b22d80e84945f3149e24fb08a874e5293d4fbbff6d7df7c941fb47be9b4ff

  • SHA512

    70ef9adc4a09b6fdec670a251f3ce2a5b73491bf334bd3c5ca005ccac654c7e99197ef109f173d63c2d0cef94b1b8519457e156c91703d9d241e4b6183475fdc

  • SSDEEP

    12288:9F8SHwVMnjioNvXt2sMVfbc7/B/XVu4HbSeHEt7XtdPMh5EpRamarPV+:9+swyRsVfgBs47s19dPQ5EpRamarPE

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\118327932 AR_Feb_kazkhstan _2024-v2.exe
    "C:\Users\Admin\AppData\Local\Temp\118327932 AR_Feb_kazkhstan _2024-v2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Program Files (x86)\windows mail\wab.exe
      "C:\Users\Admin\AppData\Local\Temp\118327932 AR_Feb_kazkhstan _2024-v2.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetWindowsHookEx
      PID:2696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\nst9CEC.tmp\System.dll

    Filesize

    11KB

    MD5

    3f176d1ee13b0d7d6bd92e1c7a0b9bae

    SHA1

    fe582246792774c2c9dd15639ffa0aca90d6fd0b

    SHA256

    fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

    SHA512

    0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

  • memory/2044-12-0x00000000775E1000-0x00000000776E2000-memory.dmp

    Filesize

    1.0MB

  • memory/2044-13-0x00000000775E0000-0x0000000077789000-memory.dmp

    Filesize

    1.7MB

  • memory/2696-14-0x00000000775E0000-0x0000000077789000-memory.dmp

    Filesize

    1.7MB

  • memory/2696-16-0x0000000000900000-0x0000000001962000-memory.dmp

    Filesize

    16.4MB

  • memory/2696-36-0x0000000001970000-0x00000000073C2000-memory.dmp

    Filesize

    90.3MB