Analysis

  • max time kernel
    121s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    29-12-2023 01:46

General

  • Target

    Spoofer.exe

  • Size

    1.2MB

  • MD5

    d4041cc3e5034ae1ef88af893b2f5b15

  • SHA1

    b4a5312e96d4618b067b2865ec75b88806162ccc

  • SHA256

    93223f738657509b016c39bb9d2c7728d698391afe35ce95fb775c32e2d11c3b

  • SHA512

    0b3eaa222ec8905bc3163eca5abef8ab1cd39d4c898f3e617dd1257c98f3c8fd533898cc5f91006416bd5a82c23db0ac3400a3f74beda34e2c54d9ba1b1605c7

  • SSDEEP

    24576:5GKxdvVStCsVR+bkSe/oREP64Ng0o48I0zEMM:wKxdvcQsVRm/+j6DRFREMM

Score
10/10

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1190042379600797716/_o3srVE7TGd9h-tXYsjqIoul_MAhdkguDLRahVco32Q3wx_y9SxlyFBxvxjJsCXHT46C

Signatures

  • Detect Umbral payload 2 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Spoofer.exe
    "C:\Users\Admin\AppData\Local\Temp\Spoofer.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2952
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2580

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2952-0-0x00000000002E0000-0x000000000069C000-memory.dmp

    Filesize

    3.7MB

  • memory/2952-2-0x0000000074010000-0x00000000746FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2952-1-0x00000000002E0000-0x000000000069C000-memory.dmp

    Filesize

    3.7MB

  • memory/2952-3-0x0000000003FC0000-0x0000000004000000-memory.dmp

    Filesize

    256KB

  • memory/2952-20-0x0000000074010000-0x00000000746FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2952-21-0x0000000003FC0000-0x0000000004000000-memory.dmp

    Filesize

    256KB

  • memory/2952-27-0x00000000002E0000-0x000000000069C000-memory.dmp

    Filesize

    3.7MB

  • memory/2952-28-0x0000000074010000-0x00000000746FE000-memory.dmp

    Filesize

    6.9MB