File name:

MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe

Full analysis: https://app.any.run/tasks/10bb286f-b7e0-4d5e-9228-867e2092b6ec
Verdict: Malicious activity
Analysis date: June 19, 2024, 15:43:45
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows
MD5:

FBD9AD001BB2719F574C0705C5DE05FB

SHA1:

D07E77A490AD677935AC8213B88237E94440E791

SHA256:

F0031F9D7F25D4D29581879F62565A5A565995899ADC60213F9E218147C78593

SSDEEP:

98304:KfUDapf95UyB+DqQ5a0Ckwu8qdi5HOxLQVRpxIipPJ+txDOKqoRLLbr3qXGFc8H5:jSy53PLUFa

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • Drops the executable file immediately after the start

      • MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe (PID: 2748)
      • ColaBoxChecker.exe (PID: 1504)

  • SUSPICIOUS

    • Process drops legitimate windows executable

      • MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe (PID: 2748)

    • Drops a system driver (possible attempt to evade defenses)

      • MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe (PID: 2748)
      • ColaBoxChecker.exe (PID: 1504)

    • Drops 7-zip archiver for unpacking

      • MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe (PID: 2748)

    • Reads the Internet Settings

      • nemu-downloader.exe (PID: 2960)

    • Reads security settings of Internet Explorer

      • nemu-downloader.exe (PID: 2960)

    • The process drops C-runtime libraries

      • MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe (PID: 2748)

    • Reads settings of System Certificates

      • nemu-downloader.exe (PID: 2960)

    • Executable content was dropped or overwritten

      • MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe (PID: 2748)
      • ColaBoxChecker.exe (PID: 1504)

  • INFO

    • Checks supported languages

      • wmpnscfg.exe (PID: 3252)
      • MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe (PID: 2748)
      • ColaBoxChecker.exe (PID: 1504)
      • nemu-downloader.exe (PID: 2960)
      • 7z.exe (PID: 3692)
      • 7z.exe (PID: 3152)

    • Reads the computer name

      • wmpnscfg.exe (PID: 3252)
      • nemu-downloader.exe (PID: 2960)
      • ColaBoxChecker.exe (PID: 1504)
      • 7z.exe (PID: 3152)
      • 7z.exe (PID: 3692)

    • Create files in a temporary directory

      • MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe (PID: 2748)
      • nemu-downloader.exe (PID: 2960)
      • ColaBoxChecker.exe (PID: 1504)
      • 7z.exe (PID: 3152)
      • 7z.exe (PID: 3692)

    • Reads the software policy settings

      • nemu-downloader.exe (PID: 2960)

    • Reads the machine GUID from the registry

      • ColaBoxChecker.exe (PID: 1504)
      • nemu-downloader.exe (PID: 2960)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable MS Visual C++ (generic) (42.2)
.exe | Win64 Executable (generic) (37.3)
.dll | Win32 Dynamic Link Library (generic) (8.8)
.exe | Win32 Executable (generic) (6)
.exe | Generic Win/DOS Executable (2.7)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2022:06:15 13:00:00+00:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, Large address aware, 32-bit
PEType: PE32
LinkerVersion: 6
CodeSize: 28672
InitializedDataSize: 126464
UninitializedDataSize: -
EntryPoint: 0x7c84
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 22.0.0.0
ProductVersionNumber: 22.0.0.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Windows NT 32-bit
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Unicode
CompanyName: NetEase, Inc.
FileDescription: MuMu Player 12
FileVersion: 2022
InternalName: 7zS2.sfx
LegalCopyright: Copyright (C) 2022
OriginalFileName: NemuDownloader.exe
ProductName: MuMu Player 12
ProductVersion: 1.0.0.0
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
50
Monitored processes
7
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start mumuinstaller_3.1.7.0_gw-overseas12_all_1712735105.exe nemu-downloader.exe colaboxchecker.exe 7z.exe no specs 7z.exe no specs wmpnscfg.exe no specs mumuinstaller_3.1.7.0_gw-overseas12_all_1712735105.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
1504"C:\Users\admin\AppData\Local\Temp\7z4C314ABC\ColaBoxChecker.exe" checker /baseboardC:\Users\admin\AppData\Local\Temp\7z4C314ABC\ColaBoxChecker.exe
nemu-downloader.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\7z4c314abc\colaboxchecker.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\iphlpapi.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\nsi.dll
c:\windows\system32\winnsi.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ole32.dll
2748"C:\Users\admin\AppData\Local\Temp\MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe" C:\Users\admin\AppData\Local\Temp\MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe
explorer.exe
User:
admin
Company:
NetEase, Inc.
Integrity Level:
HIGH
Description:
MuMu Player 12
Exit code:
0
Version:
2022
Modules
Images
c:\users\admin\appdata\local\temp\mumuinstaller_3.1.7.0_gw-overseas12_all_1712735105.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
2960C:\Users\admin\AppData\Local\Temp\7z4C314ABC\nemu-downloader.exe C:\Users\admin\AppData\Local\Temp\7z4C314ABC\nemu-downloader.exe
MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe
User:
admin
Company:
NetEase, Inc.
Integrity Level:
HIGH
Description:
MuMu Player Installer
Exit code:
0
Version:
1.3.0.1
Modules
Images
c:\users\admin\appdata\local\temp\7z4c314abc\nemu-downloader.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\shell32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
3152"C:\Users\admin\AppData\Local\Temp\7z4C314ABC\7z.exe" a -tzip "C:\Users\admin\AppData\Local\Temp\nemux.zip" "C:\Users\admin\AppData\Local\Temp\nemux"C:\Users\admin\AppData\Local\Temp\7z4C314ABC\7z.exe—nemu-downloader.exe
User:
admin
Company:
Igor Pavlov
Integrity Level:
HIGH
Description:
7-Zip Console
Exit code:
1
Version:
19.00
Modules
Images
c:\users\admin\appdata\local\temp\7z4c314abc\7z.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\ole32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
3252"C:\Program Files\Windows Media Player\wmpnscfg.exe"C:\Program Files\Windows Media Player\wmpnscfg.exe—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Media Player Network Sharing Service Configuration Application
Exit code:
0
Version:
12.0.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\program files\windows media player\wmpnscfg.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
3400"C:\Users\admin\AppData\Local\Temp\MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe" C:\Users\admin\AppData\Local\Temp\MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe—explorer.exe
User:
admin
Company:
NetEase, Inc.
Integrity Level:
MEDIUM
Description:
MuMu Player 12
Exit code:
3221226540
Version:
2022
Modules
Images
c:\users\admin\appdata\local\temp\mumuinstaller_3.1.7.0_gw-overseas12_all_1712735105.exe
c:\windows\system32\ntdll.dll
3692"C:\Users\admin\AppData\Local\Temp\7z4C314ABC\7z.exe" a -tzip "C:\Users\admin\AppData\Local\Temp\nemux.zip" "C:\Users\admin\AppData\Local\Temp\nemux"C:\Users\admin\AppData\Local\Temp\7z4C314ABC\7z.exe—nemu-downloader.exe
User:
admin
Company:
Igor Pavlov
Integrity Level:
HIGH
Description:
7-Zip Console
Exit code:
2
Version:
19.00
Modules
Images
c:\users\admin\appdata\local\temp\7z4c314abc\7z.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\ole32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
Total events
5 937
Read events
5 913
Write events
24
Delete events
0

Modification events

(PID) Process:(2960) nemu-downloader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\NemuServer
Operation:writeName:uuid
Value:
845ea799-d570-43a1-a081-bc53fcb3d62b
(PID) Process:(2960) nemu-downloader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\NemuServer
Operation:writeName:channel
Value:
gw-overseas12
(PID) Process:(2960) nemu-downloader.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
(PID) Process:(2960) nemu-downloader.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:IntranetName
Value:
1
(PID) Process:(2960) nemu-downloader.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
1
(PID) Process:(2960) nemu-downloader.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
0
(PID) Process:(2960) nemu-downloader.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
Executable files
14
Suspicious files
12
Text files
4
Unknown types
0

Dropped files

PID
Process
Filename
Type
2748MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exeC:\Users\admin\AppData\Local\Temp\7z4C314ABC\winring0x64.catcat
MD5:E7CEE7F541C057F490D486927D659122
SHA256:317D01D9956F052D929FDBAC258F1A2DC5163D3432FC488023A1F4D332AE3D45
2748MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exeC:\Users\admin\AppData\Local\Temp\7z4C314ABC\vcruntime140.dllexecutable
MD5:1E6E97D60D411A2DEE8964D3D05ADB15
SHA256:8598940E498271B542F2C04998626AA680F2172D0FF4F8DBD4FFEC1A196540F9
2748MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exeC:\Users\admin\AppData\Local\Temp\7z4C314ABC\skin.zipcompressed
MD5:ECB43530CAF9566C1B76D5AF8D2097F1
SHA256:A12381F97AEE2D91568F44B23E866CCC99F0AE5E5961F318ED24B72F4F5DA80A
2748MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exeC:\Users\admin\AppData\Local\Temp\7z4C314ABC\WinRing0.infbinary
MD5:F069F20871CB316BFB73C276393D1648
SHA256:07942017E8CAAA1065867AECC561577199E53142545CB6FB41239AE4C607D46B
2748MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exeC:\Users\admin\AppData\Local\Temp\7z4C314ABC\7z.dllexecutable
MD5:0FFA2BFF9E56E6122AEC80D3C1119D83
SHA256:609CBA3A8704AA6F5E2623858402BC048DE7198A3567A53183BF97DE091A3E48
2748MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exeC:\Users\admin\AppData\Local\Temp\7z4C314ABC\7z.exeexecutable
MD5:97B382235264F18A53EFF8E891997920
SHA256:BF42783C293279C65B00E4F8B72BE39E1CB0FCBE14D6679151B0D5E27FD8572D
1504ColaBoxChecker.exeC:\Users\admin\AppData\Local\Temp\WinRing0.infbinary
MD5:F069F20871CB316BFB73C276393D1648
SHA256:07942017E8CAAA1065867AECC561577199E53142545CB6FB41239AE4C607D46B
2748MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exeC:\Users\admin\AppData\Local\Temp\7z4C314ABC\ColaBoxChecker.exeexecutable
MD5:839708E3F96CF055436FA08D6205263C
SHA256:1373C5D006A5DBCD9B86CFFF9A37616F1245D1333C4ADCEFC7CD18926B98D752
2748MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exeC:\Users\admin\AppData\Local\Temp\7z4C314ABC\HyperVChecker.exeexecutable
MD5:DBD84C6083E4BADF4741D95BA3C9B5F8
SHA256:9FF467BC5A1C377102D25DA9FA9C24DCC4375F456510F71584F0714FDFB2AF39
2748MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exeC:\Users\admin\AppData\Local\Temp\7z4C314ABC\msvcrt.dllexecutable
MD5:0DAA0D9DC786F95C8DC2CCC0221B2863
SHA256:279A03ACC810C1FE613BE283EB24762F0451DA9A6142ED3DC996A1D10FE2F692
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
3
TCP/UDP connections
18
DNS requests
6
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
1372
svchost.exe
GET
304
23.50.131.223:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?33775f6043c93e33
unknown
—
—
unknown
1372
svchost.exe
GET
200
23.48.23.143:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
unknown
1372
svchost.exe
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
unknown
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
4
System
192.168.100.255:137
—
—
—
whitelisted
1372
svchost.exe
51.124.78.146:443
—
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
1060
svchost.exe
224.0.0.252:5355
—
—
—
unknown
2564
svchost.exe
239.255.255.250:3702
—
—
—
unknown
4
System
192.168.100.255:138
—
—
—
whitelisted
2960
nemu-downloader.exe
54.250.137.16:443
api.mumuglobal.com
AMAZON-02
JP
unknown
2960
nemu-downloader.exe
23.197.7.158:443
dns.update.easebar.com
AKAMAI-AS
DE
unknown
1372
svchost.exe
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
1372
svchost.exe
23.50.131.223:80
ctldl.windowsupdate.com
Akamai International B.V.
DE
unknown
1372
svchost.exe
23.48.23.143:80
crl.microsoft.com
Akamai International B.V.
DE
unknown

DNS requests

Domain
IP
Reputation
api.mumuglobal.com
  • 54.250.137.16
  • 13.113.174.113
unknown
dns.update.easebar.com
  • 23.197.7.158
unknown
settings-win.data.microsoft.com
  • 4.231.128.59
whitelisted
ctldl.windowsupdate.com
  • 23.50.131.223
  • 23.50.131.217
  • 23.50.131.196
  • 23.50.131.206
  • 23.50.131.211
  • 23.50.131.198
  • 23.50.131.207
  • 23.50.131.213
  • 23.50.131.220
whitelisted
crl.microsoft.com
  • 23.48.23.143
  • 23.48.23.156
whitelisted
www.microsoft.com
  • 23.35.229.160
whitelisted

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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Reports
MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe