Overview

overview

8

Static

static

3

d1f9d36b91...58.exe

windows7-x64

8

d1f9d36b91...58.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2024 07:52

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    d1f9d36b91707dc3ee1b6aae3d5ca4d0d6b66e59cb72d6804677ab0ffb72e958.exe

  • Size

    410KB

  • MD5

    449697d16fd75d8b5b96ba555b7b5fbc

  • SHA1

    4c33a024649cd61a5a64af40d2c8aed43f5f6f76

  • SHA256

    d1f9d36b91707dc3ee1b6aae3d5ca4d0d6b66e59cb72d6804677ab0ffb72e958

  • SHA512

    23b58358af4c63365474c6ff6852617e6af2589d2a1c26df8b8a6a15af90ab84746c58f19b153a0955b05ca19fd58c88e76907fa0a9c3457c21ce85bd57c47ad

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Score
8/10
bootkitdiscoverypersistencespywarestealer

Malware Config

Signatures

  • Blocklisted process makes network request 8 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d1f9d36b91707dc3ee1b6aae3d5ca4d0d6b66e59cb72d6804677ab0ffb72e958.exe
    "C:\Users\Admin\AppData\Local\Temp\d1f9d36b91707dc3ee1b6aae3d5ca4d0d6b66e59cb72d6804677ab0ffb72e958.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1648
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\fnzqyukpt.exe "C:\Users\Admin\AppData\Local\Temp\d1f9d36b91707dc3ee1b6aae3d5ca4d0d6b66e59cb72d6804677ab0ffb72e958.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:1080
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2452
      • C:\Users\Admin\AppData\Local\Temp\fnzqyukpt.exe
        C:\Users\Admin\AppData\Local\Temp\\fnzqyukpt.exe "C:\Users\Admin\AppData\Local\Temp\d1f9d36b91707dc3ee1b6aae3d5ca4d0d6b66e59cb72d6804677ab0ffb72e958.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4056
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\lruyf\nkzgv.dll",Verify C:\Users\Admin\AppData\Local\Temp\fnzqyukpt.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

2
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\lruyf\nkzgv.dll
    Filesize

    228KB

    MD5

    d24171b00dada9d07d7e9a3a252f9723

    SHA1

    ee61fee48ef5e5535971c371b2d2d8357b4d0d70

    SHA256

    10715037d73275f4670046bd97e2a211208bd3a367b77aed85a10a1ad2983931

    SHA512

    ba95ddd15d6fcb61bbd9c34d299e2f19bf85b7fb31e8ba46b833d1dd2d7255de87e03b7265baa6b8f5d279e90ac2a4359b865e054f87a786469d214b41e068a1

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\fnzqyukpt.exe
    Filesize

    410KB

    MD5

    f9af78b55d5e128900c7b25f206f4170

    SHA1

    00ab42e9611ca5c4904242f92b3405353e28f93e

    SHA256

    38589480cc53c9be3b0914cf6f81d7f4ee9198336300fa1f3504c597c1c8bc26

    SHA512

    9fa72b8abe7c2585260d03cbc20d0853aa48847c6a07641bc8a0eb2675ad35df6d899634c03601367f669b6d3243a90ffa1e313734e67ace413ea0d0836d3c28

    Download Submit

  • memory/1648-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/1648-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/4056-6-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/4056-8-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/4956-11-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/4956-12-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/4956-14-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download