Overview

overview

8

Static

static

3

120a0efd4e...8b.exe

windows7-x64

8

120a0efd4e...8b.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    153s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-04-2024 14:20

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General

  • Target

    120a0efd4e4eea95fe3c6730fb495bc1006b33081a9a107619df1f16595b138b.exe

  • Size

    403KB

  • MD5

    1581bd35e4f16dca4b982a2b953cfcdd

  • SHA1

    a6252f7993137811caca25634674ced6b126c3b9

  • SHA256

    120a0efd4e4eea95fe3c6730fb495bc1006b33081a9a107619df1f16595b138b

  • SHA512

    31bc1f323d471177a502f508a698d08abae7777c2cab54d31a8c5f6b25cc2a9018a4d3238720c82d5ba8bac6dbd4b2f4c8bba3f73175b9f5be6ceccad35bd43c

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Score
8/10
bootkitpersistencespywarestealer

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 2 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 2 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
  • 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\120a0efd4e4eea95fe3c6730fb495bc1006b33081a9a107619df1f16595b138b.exe
    "C:\Users\Admin\AppData\Local\Temp\120a0efd4e4eea95fe3c6730fb495bc1006b33081a9a107619df1f16595b138b.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\tfhai.exe "C:\Users\Admin\AppData\Local\Temp\120a0efd4e4eea95fe3c6730fb495bc1006b33081a9a107619df1f16595b138b.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4760
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:3552
      • C:\Users\Admin\AppData\Local\Temp\tfhai.exe
        C:\Users\Admin\AppData\Local\Temp\\tfhai.exe "C:\Users\Admin\AppData\Local\Temp\120a0efd4e4eea95fe3c6730fb495bc1006b33081a9a107619df1f16595b138b.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2696
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\vzefmuqda\bxjxeuh.dll",Verify C:\Users\Admin\AppData\Local\Temp\tfhai.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
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2428
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3740 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1148

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    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

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    Query Registry

    2
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    2
    T1082

    Remote System Discovery

    1
    T1018

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Exfiltration

    Command and Control

    Impact

    Resource Development

    Reconnaissance

    Replay Monitor

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    Downloads

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

      403KB

      MD5

      df7a527277f7bc0d8be9b1b0d0545a86

      SHA1

      5ac2fd4693f3d950aeccf35e0527579f1e0da0fe

      SHA256

      c6847540f8381cebac079e962b48c1acf98ecb9b63034ee143bf24214a8b7e8a

      SHA512

      4ef477de0869c2565ef6170c43b8d6f74d631ba9da80f56e81d9d1776724d936c151b5f4366c5f4089f97535d4739d870488409fc97efb43e4d75f15dfb180bf

      Download Submit
    • \??\c:\Program Files\vzefmuqda\bxjxeuh.dll
      Filesize

      228KB

      MD5

      6c8f61934dd95659bb49dbdaa377d62b

      SHA1

      6fcb799ee1734944f8b0d82577ba799d59b6571a

      SHA256

      17921997af9c1fea7edd939dc194fc8d385e51fe37683dbc6f67135d12c32c26

      SHA512

      013e81d1e8cb5993fd814884c7e9849abc20b9e717b23e35e9f581aa67843ae574d7fb0106eb9a962f17b55d42077eb8cbe571c3ad507f71a4fbdfcb7bb69b8f

      Download Submit
    • memory/2428-10-0x0000000010000000-0x0000000010080000-memory.dmp
      Filesize

      512KB

      Download
    • memory/2428-11-0x0000000010000000-0x0000000010080000-memory.dmp
      Filesize

      512KB

      Download
    • memory/2428-13-0x0000000010000000-0x0000000010080000-memory.dmp
      Filesize

      512KB

      Download
    • memory/2696-7-0x0000000000400000-0x0000000000464000-memory.dmp
      Filesize

      400KB

      Download
    • memory/3016-0-0x0000000000400000-0x0000000000464000-memory.dmp
      Filesize

      400KB

      Download
    • memory/3016-2-0x0000000000400000-0x0000000000464000-memory.dmp
      Filesize

      400KB

      Download