Overview

overview

10

Static

static

10

GeforceNow.exe

windows10_x64

10

Analysis

  • max time kernel
    60s
  • max time network
    62s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    20-12-2021 05:10

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General

  • Target

    GeforceNow.exe

  • Size

    29KB

  • MD5

    f1aa4749c6bf4f095862c0a26c32eb26

  • SHA1

    99cfe703d358c76b06feccc397c4461e39e02309

  • SHA256

    e1a51853ecacc1cc2ecb286ee437e3ec340c78a398e88cab47eaa874ac7af7de

  • SHA512

    4e3ab6ba5a010f0e9162cfce693b199d161f5fcb33f5d51bb5948e8aebc281750e58b9d8e1a8cac04e7627afa2adbc584094a840e0e899c46032098d82ae99f2

Score
10/10
njratx33evasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

x33

C2

flubabapro.duckdns.org:53

Mutex

599ba46d0096edac8ad1cb1ef14e5829

Attributes
  • reg_key

    599ba46d0096edac8ad1cb1ef14e5829

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\GeforceNow.exe
    "C:\Users\Admin\AppData\Local\Temp\GeforceNow.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3264
    • C:\Users\Admin\riot.exe
      "C:\Users\Admin\riot.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3248
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\riot.exe" "riot.exe" ENABLE
        3⤵
          PID:1368

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\riot.exe
      MD5

      f1aa4749c6bf4f095862c0a26c32eb26

      SHA1

      99cfe703d358c76b06feccc397c4461e39e02309

      SHA256

      e1a51853ecacc1cc2ecb286ee437e3ec340c78a398e88cab47eaa874ac7af7de

      SHA512

      4e3ab6ba5a010f0e9162cfce693b199d161f5fcb33f5d51bb5948e8aebc281750e58b9d8e1a8cac04e7627afa2adbc584094a840e0e899c46032098d82ae99f2

      Download Submit
    • C:\Users\Admin\riot.exe
      MD5

      f1aa4749c6bf4f095862c0a26c32eb26

      SHA1

      99cfe703d358c76b06feccc397c4461e39e02309

      SHA256

      e1a51853ecacc1cc2ecb286ee437e3ec340c78a398e88cab47eaa874ac7af7de

      SHA512

      4e3ab6ba5a010f0e9162cfce693b199d161f5fcb33f5d51bb5948e8aebc281750e58b9d8e1a8cac04e7627afa2adbc584094a840e0e899c46032098d82ae99f2

      Download Submit
    • memory/1368-118-0x0000000000000000-mapping.dmp
      Download
    • memory/3248-115-0x0000000000000000-mapping.dmp
      Download
    • memory/3248-119-0x00000000026E0000-0x00000000026E1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/3264-114-0x00000000007C0000-0x000000000086E000-memory.dmp
      Filesize

      696KB

      Download