Analysis

  • max time kernel
    110s
  • max time network
    176s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    09-02-2023 15:33

General

  • Target

    4a8248de1ec4189b7c84cc52fc712c1d8e364197bb048ac42b75a564b5d58fe0.exe

  • Size

    764KB

  • MD5

    58dc9b88868c396c738d14550f5bb8d0

  • SHA1

    7568ab17d63c449b9c7f4f2f6fbc4bd0c2e0a38a

  • SHA256

    4a8248de1ec4189b7c84cc52fc712c1d8e364197bb048ac42b75a564b5d58fe0

  • SHA512

    957bc61aa153cc06d44ab6bc6503b34bd70c9e2dfa579c1a839dc0663483a997dbdb30a5983bfa5f185ef893e72c284dec84ef5ac88cf5e759bc7c86154d25d0

  • SSDEEP

    12288:PMrry908ycA0s+cSmg8wgkxSUQVd53NrNeWTCwvpLRnxUPdQhbjOa2a9+sSuhoD:YyI0s+czUVxSZBNrNdlLRxU+hbjO/a9c

Malware Config

Extracted

Family

redline

Botnet

dubna

C2

193.233.20.11:4131

Attributes
  • auth_value

    f324b1269094b7462e56bab025f032f4

Extracted

Family

redline

Botnet

romka

C2

193.233.20.11:4131

Attributes
  • auth_value

    fcbb3247051f5290e8ac5b1a841af67b

Extracted

Family

redline

Botnet

crypt

C2

176.113.115.17:4132

Attributes
  • auth_value

    407e05c9b3a74d99a20f90b091547bd6

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 5 IoCs
  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 2 IoCs
  • Executes dropped EXE 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 1 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a8248de1ec4189b7c84cc52fc712c1d8e364197bb048ac42b75a564b5d58fe0.exe
    "C:\Users\Admin\AppData\Local\Temp\4a8248de1ec4189b7c84cc52fc712c1d8e364197bb048ac42b75a564b5d58fe0.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2704
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dhun.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dhun.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1836
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\djrn.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\djrn.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:4192
        • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\aYGYG.exe
          C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\aYGYG.exe
          4⤵
          • Modifies Windows Defender Real-time Protection settings
          • Executes dropped EXE
          • Windows security modification
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3556
        • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bYGYG.exe
          C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bYGYG.exe
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4276
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\crWrW.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\crWrW.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2816
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\djrjr.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\djrjr.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2232
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2304

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

3
T1112

Disabling Security Tools

2
T1089

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

1
T1012

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dhun.exe
    Filesize

    533KB

    MD5

    9d8c03055f7b2c0627cd5e369db9954e

    SHA1

    dc311f83418f0131ec4b36306ebcfb950bf57e8a

    SHA256

    25378bb875c9002ec4c9490ece2140391a82fcbcab8799fd00d1a0dacd38b72c

    SHA512

    a34fad66c08733e94628f6cbd6e1722dee574df7082e916ae45c1bb11d638c007e75607e62701c817114d5f759aa38b79d7d9c3229366a2a68baff3342f9119b

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dhun.exe
    Filesize

    533KB

    MD5

    9d8c03055f7b2c0627cd5e369db9954e

    SHA1

    dc311f83418f0131ec4b36306ebcfb950bf57e8a

    SHA256

    25378bb875c9002ec4c9490ece2140391a82fcbcab8799fd00d1a0dacd38b72c

    SHA512

    a34fad66c08733e94628f6cbd6e1722dee574df7082e916ae45c1bb11d638c007e75607e62701c817114d5f759aa38b79d7d9c3229366a2a68baff3342f9119b

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\djrjr.exe
    Filesize

    283KB

    MD5

    457dcca2cfa8e1592521e4bc580d2097

    SHA1

    de855fa7934126fd1cde834b752999ebe79e367f

    SHA256

    54ce28a037eea87448e65bc25f8d3a38ddd4b4679516cc59899b77150aa46fcc

    SHA512

    d15709dd44e184612a86e7201c78887771e7cc062e8b4daf83c5bbf1d6dd74320e8c5058cde295d412d8e5b135f8686f8ed56aa9aa2a439b022319e6723bb752

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\djrjr.exe
    Filesize

    283KB

    MD5

    457dcca2cfa8e1592521e4bc580d2097

    SHA1

    de855fa7934126fd1cde834b752999ebe79e367f

    SHA256

    54ce28a037eea87448e65bc25f8d3a38ddd4b4679516cc59899b77150aa46fcc

    SHA512

    d15709dd44e184612a86e7201c78887771e7cc062e8b4daf83c5bbf1d6dd74320e8c5058cde295d412d8e5b135f8686f8ed56aa9aa2a439b022319e6723bb752

  • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\crWrW.exe
    Filesize

    294KB

    MD5

    bd2200de9318b085c7bbe57b9d0712de

    SHA1

    6c67d6cb9c5480a99bf86ae695dc683ed1e6b04f

    SHA256

    1ebc588480bfd81a5db0d6ec7c82833f44e50f9d586d9a031b6377d606789cc9

    SHA512

    3fdbaea338327084aeabcd86f9af6424500f2fbf50208e07910ef8197c2440a39ac921b64ea9368dfca8ca9c40e531c37478d9ec9b9bfbb3307ac0c87ed50b41

  • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\crWrW.exe
    Filesize

    294KB

    MD5

    bd2200de9318b085c7bbe57b9d0712de

    SHA1

    6c67d6cb9c5480a99bf86ae695dc683ed1e6b04f

    SHA256

    1ebc588480bfd81a5db0d6ec7c82833f44e50f9d586d9a031b6377d606789cc9

    SHA512

    3fdbaea338327084aeabcd86f9af6424500f2fbf50208e07910ef8197c2440a39ac921b64ea9368dfca8ca9c40e531c37478d9ec9b9bfbb3307ac0c87ed50b41

  • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\djrn.exe
    Filesize

    202KB

    MD5

    19081bfda44e9dc456faff6c44bbebb6

    SHA1

    63bef40f69772bc2a58a4c1094c1436c5e70c287

    SHA256

    5a50e47fa3c925eae161edf8dc928793279a8e96e4f05c698d62dc6ae8e05656

    SHA512

    7403ad62b13cf83b35d9ee40fcac7b0c978caca534929729d40201a36ff44cb97538e23a2d9e4c4de240c72c8b7b1db9d07946c31eb80953f4dad036bb9b3d90

  • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\djrn.exe
    Filesize

    202KB

    MD5

    19081bfda44e9dc456faff6c44bbebb6

    SHA1

    63bef40f69772bc2a58a4c1094c1436c5e70c287

    SHA256

    5a50e47fa3c925eae161edf8dc928793279a8e96e4f05c698d62dc6ae8e05656

    SHA512

    7403ad62b13cf83b35d9ee40fcac7b0c978caca534929729d40201a36ff44cb97538e23a2d9e4c4de240c72c8b7b1db9d07946c31eb80953f4dad036bb9b3d90

  • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\aYGYG.exe
    Filesize

    11KB

    MD5

    7e93bacbbc33e6652e147e7fe07572a0

    SHA1

    421a7167da01c8da4dc4d5234ca3dd84e319e762

    SHA256

    850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38

    SHA512

    250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91

  • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\aYGYG.exe
    Filesize

    11KB

    MD5

    7e93bacbbc33e6652e147e7fe07572a0

    SHA1

    421a7167da01c8da4dc4d5234ca3dd84e319e762

    SHA256

    850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38

    SHA512

    250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91

  • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bYGYG.exe
    Filesize

    175KB

    MD5

    ef8079cf160510d0da7162bc08f753d8

    SHA1

    e786cc8bee83e4a37433ddccf9d3540e1f6533fe

    SHA256

    a6416ca607f03e7d02dd9c8b546113c71f421c0ba8438dafb941d25f8cf2c9e6

    SHA512

    959b08126358527b794a276f6e9f818250f888d9f108b46766f6c2e50186acc8f406acbeb94ca97b5f0e329b27f3851003446715d5d040b5c0fef4010011a2c3

  • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bYGYG.exe
    Filesize

    175KB

    MD5

    ef8079cf160510d0da7162bc08f753d8

    SHA1

    e786cc8bee83e4a37433ddccf9d3540e1f6533fe

    SHA256

    a6416ca607f03e7d02dd9c8b546113c71f421c0ba8438dafb941d25f8cf2c9e6

    SHA512

    959b08126358527b794a276f6e9f818250f888d9f108b46766f6c2e50186acc8f406acbeb94ca97b5f0e329b27f3851003446715d5d040b5c0fef4010011a2c3

  • memory/1836-180-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-173-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-163-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-181-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-161-0x0000000000000000-mapping.dmp
  • memory/1836-179-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-178-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-177-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-176-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-175-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-174-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-164-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-172-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-171-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-170-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-165-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-168-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-167-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/1836-166-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2232-461-0x0000000000000000-mapping.dmp
  • memory/2304-559-0x0000000000400000-0x0000000000432000-memory.dmp
    Filesize

    200KB

  • memory/2304-507-0x000000000041B592-mapping.dmp
  • memory/2304-575-0x0000000009680000-0x00000000096CB000-memory.dmp
    Filesize

    300KB

  • memory/2704-144-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-140-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-152-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-153-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-154-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-155-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-156-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-157-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-158-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-160-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-159-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-150-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-149-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-148-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-147-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-146-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-138-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-137-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-145-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-115-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-143-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-142-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-141-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-151-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-139-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-136-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-135-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-134-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-133-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-132-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-131-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-130-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-116-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-129-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-128-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-127-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-117-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-126-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-118-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-119-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-125-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-124-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-120-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-121-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-122-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2704-123-0x0000000077D30000-0x0000000077EBE000-memory.dmp
    Filesize

    1.6MB

  • memory/2816-361-0x0000000000000000-mapping.dmp
  • memory/2816-454-0x0000000000580000-0x00000000006CA000-memory.dmp
    Filesize

    1.3MB

  • memory/2816-460-0x0000000000400000-0x0000000000579000-memory.dmp
    Filesize

    1.5MB

  • memory/2816-459-0x0000000000821000-0x000000000084F000-memory.dmp
    Filesize

    184KB

  • memory/2816-453-0x0000000000821000-0x000000000084F000-memory.dmp
    Filesize

    184KB

  • memory/2816-437-0x0000000000580000-0x00000000006CA000-memory.dmp
    Filesize

    1.3MB

  • memory/2816-440-0x0000000000400000-0x0000000000579000-memory.dmp
    Filesize

    1.5MB

  • memory/2816-438-0x00000000059D0000-0x0000000005A1B000-memory.dmp
    Filesize

    300KB

  • memory/2816-436-0x0000000000821000-0x000000000084F000-memory.dmp
    Filesize

    184KB

  • memory/2816-422-0x0000000002530000-0x0000000002574000-memory.dmp
    Filesize

    272KB

  • memory/2816-417-0x0000000000980000-0x00000000009C6000-memory.dmp
    Filesize

    280KB

  • memory/3556-262-0x0000000000300000-0x000000000030A000-memory.dmp
    Filesize

    40KB

  • memory/3556-259-0x0000000000000000-mapping.dmp
  • memory/4192-210-0x0000000000000000-mapping.dmp
  • memory/4276-333-0x0000000005690000-0x00000000056DB000-memory.dmp
    Filesize

    300KB

  • memory/4276-338-0x0000000005A90000-0x0000000005B22000-memory.dmp
    Filesize

    584KB

  • memory/4276-351-0x0000000006E30000-0x0000000006E80000-memory.dmp
    Filesize

    320KB

  • memory/4276-350-0x0000000006DB0000-0x0000000006E26000-memory.dmp
    Filesize

    472KB

  • memory/4276-342-0x0000000005B30000-0x0000000005B96000-memory.dmp
    Filesize

    408KB

  • memory/4276-327-0x0000000005720000-0x000000000582A000-memory.dmp
    Filesize

    1.0MB

  • memory/4276-339-0x0000000006730000-0x0000000006C2E000-memory.dmp
    Filesize

    5.0MB

  • memory/4276-352-0x0000000007150000-0x0000000007312000-memory.dmp
    Filesize

    1.8MB

  • memory/4276-326-0x0000000005C20000-0x0000000006226000-memory.dmp
    Filesize

    6.0MB

  • memory/4276-313-0x0000000000D90000-0x0000000000DC2000-memory.dmp
    Filesize

    200KB

  • memory/4276-263-0x0000000000000000-mapping.dmp
  • memory/4276-353-0x0000000007850000-0x0000000007D7C000-memory.dmp
    Filesize

    5.2MB

  • memory/4276-331-0x0000000005650000-0x000000000568E000-memory.dmp
    Filesize

    248KB

  • memory/4276-329-0x00000000030A0000-0x00000000030B2000-memory.dmp
    Filesize

    72KB