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Overview

overview

10

Static

static

10

rh111.exe

windows7-x64

10

rh111.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    135s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/08/2024, 06:44

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General

  • Target

    rh111.exe

  • Size

    798KB

  • MD5

    90aadf2247149996ae443e2c82af3730

  • SHA1

    050b7eba825412b24e3f02d76d7da5ae97e10502

  • SHA256

    ee573647477339784dcef81024de1be1762833a20e5cc2b89a93e47d05b86b6a

  • SHA512

    eec32bb82b230dd309c29712e72d4469250e651449e127479d178eddbafd5a46ec8048a753bc2c1a0fdf1dc3ed72a9453ca66fb49cbf0f95a12704e5427182be

  • SSDEEP

    24576:Uj0JJ4p/A4npt3XojeQG5EtzRtO7GvmDguXd:UjoJ4u4zojegylDN

Score
10/10
flawedammyybootkitdiscoverypersistencetrojan

Malware Config

Signatures

  • FlawedAmmyy RAT

    Remote-access trojan based on leaked code for the Ammyy remote admin software.

    trojanflawedammyy
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rh111.exe
    "C:\Users\Admin\AppData\Local\Temp\rh111.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • System Location Discovery: System Language Discovery
    PID:384
  • C:\Users\Admin\AppData\Local\Temp\rh111.exe
    "C:\Users\Admin\AppData\Local\Temp\rh111.exe" -service -lunch
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Users\Admin\AppData\Local\Temp\rh111.exe
      "C:\Users\Admin\AppData\Local\Temp\rh111.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4500

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\AMMYY\settings3.bin
    Filesize

    334B

    MD5

    27dadd59bd2f673aed38ea464bdaf683

    SHA1

    913e9be810c4bef8359757de7157a574522cea8e

    SHA256

    d5222c432d7870cec22e7df697c9379138866580d2e5e98fabfad04a5fc66f97

    SHA512

    84271ff37b4e60f2f3b6c8b8160434b2735ff8fcae1d1b46215d67735b92dda6333fe740e4c588fe2041ceb1bf54d7cc5b6b22169729e630f80718e0578f5c35

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