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

    • The process drops C-runtime libraries

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

    • 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)

    • Executable content was dropped or overwritten

      • 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)

    • Reads settings of System Certificates

      • nemu-downloader.exe (PID: 2960)

  • INFO

    • Checks supported languages

      • wmpnscfg.exe (PID: 3252)
      • 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 computer name

      • wmpnscfg.exe (PID: 3252)
      • nemu-downloader.exe (PID: 2960)
      • 7z.exe (PID: 3152)
      • ColaBoxChecker.exe (PID: 1504)
      • 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.infbinary
MD5:0F6D3047D1B670058D71C411707EF16E
SHA256:3FDED2F4457B0BEB415B841B40F6EDE5ED527DD537E53E2F70F2FB4A6E24EBFD
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\WinRing0x64.sysexecutable
MD5:1C57D067B9FC5E9EF9AEB14223481243
SHA256:D5BCA2CA464A6CC91344BD85E812A7BAC6E7C67038C4929A29E0BC60C7EABE4D
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\config.initext
MD5:D00FB4C61A255B58FF09886C6C72461B
SHA256:77DEC4D79E1E844A2156F101DEFC0FC81C138A989E8BA1C722C58FEB91B3CD4A
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\MuMuDownloader.exeexecutable
MD5:2F3D77B4F587F956E9987598B0A218EB
SHA256:2F980C56D81F42BA47DC871A04406976DC490DED522131CE9A2E35C40CA8616E
2748MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exeC:\Users\admin\AppData\Local\Temp\7z4C314ABC\msvcp140.dllexecutable
MD5:FF877A5DFFD764197250BD4BA28496B1
SHA256:83F935454AE8E450B6F042509ECF28CCEFF95EDB2495C63A782B9D45C2EAF1C0
2748MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exeC:\Users\admin\AppData\Local\Temp\7z4C314ABC\msvcp_win.dllexecutable
MD5:F9E704B67ECCD77A18965E9CFA128461
SHA256:F7AC4CEB149EAE5184B957D90EBEDD9BC916CD1BA3053548B637B4E32A7F8A07
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
DE
—
—
unknown
1372
svchost.exe
GET
200
23.48.23.143:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
DE
binary
1.01 Kb
unknown
1372
svchost.exe
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
DE
binary
973 b
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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ANY.RUN
Reports
MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe