Resubmissions

30-09-2023 15:20

230930-sq5egadd9s 10

30-09-2023 15:15

230930-smy4aaeg94 10

Analysis

  • max time kernel
    72s
  • max time network
    77s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2023 15:15

General

  • Target

    rbxfpsunlocker.exe

  • Size

    234KB

  • MD5

    18b7413ddfaa6df7f7405f642c10a287

  • SHA1

    e64389a600d859dd07e0fdb2df12a7d9b4d09581

  • SHA256

    84b074f1eaf50dab59347bf6122b411dbeb5c4952ffe30776cf1a88881e45436

  • SHA512

    94c78d9bb0b2044675885eb02ee698c6215d90d4dce3fea1ed350977b712c5b9315f596260d9752855d8c9cdbd531bea9999311bc9527158347aebbf367864f9

  • SSDEEP

    6144:DloZMLrIkd8g+EtXHkv/iD4YyO2un9GuBQ0dP6aPZ/b8e1mIRtVi:hoZ0L+EP8YyO2un9GuBQ0dP6aP1tf8

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

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

  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rbxfpsunlocker.exe
    "C:\Users\Admin\AppData\Local\Temp\rbxfpsunlocker.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2296
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:460

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2296-0-0x00000160247B0000-0x00000160247F0000-memory.dmp

    Filesize

    256KB

  • memory/2296-1-0x00007FFE01660000-0x00007FFE02121000-memory.dmp

    Filesize

    10.8MB

  • memory/2296-2-0x000001603EDE0000-0x000001603EDF0000-memory.dmp

    Filesize

    64KB

  • memory/2296-4-0x00007FFE01660000-0x00007FFE02121000-memory.dmp

    Filesize

    10.8MB