| File name: | MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe |
| Full analysis: | https://app.any.run/tasks/fe70ca11-0937-4a6f-bc07-b7d6e73d9a39 |
| Verdict: | Malicious activity |
| Threats: | A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection. |
| Analysis date: | July 20, 2021, 10:36:29 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | C6914156F1546DFD508B117FAFCAD6CD |
| SHA1: | E1C80934703B0530DE8CDCFD6B150C77E15360DC |
| SHA256: | 58FB89165883EC35475B3E7AEAB136FC53514170D0B7C49E82DEFDE95F465E2B |
| SSDEEP: | 98304:o38AgpWIFtB6oiuve28x/IMwfNSYymbLwkhJhsBqO293TUem3BuTqb3cHH5v2NLI:oSp4SmRhSS+LwQhJUjO+Mp2Lttsdl |
MALICIOUS
Loads dropped or rewritten executable
- MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe (PID: 2560)
Application was dropped or rewritten from another process
- aria2c.exe (PID: 2520)
SUSPICIOUS
Checks supported languages
- MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe (PID: 2560)
- aria2c.exe (PID: 2520)
Drops a file that was compiled in debug mode
- MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe (PID: 2560)
Executable content was dropped or overwritten
- MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe (PID: 2560)
Drops a file with too old compile date
- MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe (PID: 2560)
Reads the computer name
- MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe (PID: 2560)
- aria2c.exe (PID: 2520)
Creates a directory in Program Files
- MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe (PID: 2560)
Creates files in the program directory
- MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe (PID: 2560)
INFO
Reads settings of System Certificates
- MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe (PID: 2560)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable (generic) (52.9) |
|---|---|---|
| .exe | | | Generic Win/DOS Executable (23.5) |
| .exe | | | DOS Executable Generic (23.5) |
EXIF
EXE
| ProductVersion: | 1.0.5.0 |
|---|---|
| ProductName: | MuMu安装器 |
| LegalCopyright: | Copyright (C) 2017 |
| FileVersion: | 1.0.5.0 |
| FileDescription: | MuMu安装器 |
| CompanyName: | 网易游戏 |
| CharacterSet: | Unicode |
| LanguageCode: | Chinese (Simplified) |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Windows NT 32-bit |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 1.0.0.0 |
| FileVersionNumber: | 1.0.0.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 5.1 |
| ImageVersion: | - |
| OSVersion: | 5.1 |
| EntryPoint: | 0x15b6000 |
| UninitializedDataSize: | - |
| InitializedDataSize: | 846848 |
| CodeSize: | 1870848 |
| LinkerVersion: | 12 |
| PEType: | PE32 |
| TimeStamp: | 2021:07:12 11:05:11+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 12-Jul-2021 09:05:11 |
| Detected languages: |
|
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000128 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 6 |
| Time date stamp: | 12-Jul-2021 09:05:11 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
0x00001000 | 0x0023B000 | 0x000E7E00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.92045 | |
.rsrc | 0x0023C000 | 0x000420C8 | 0x0001BE00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.98099 |
.idata | 0x0027F000 | 0x00001000 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 1.30872 |
0x00280000 | 0x00B6F000 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0.251484 | |
grhmwjur | 0x00DEF000 | 0x007C7000 | 0x007C6A00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.77684 |
nqksutyf | 0x015B6000 | 0x00001000 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 3.87079 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.16968 | 2016 | UNKNOWN | English - United States | RT_MANIFEST |
2 | 5.23216 | 1128 | UNKNOWN | English - United States | RT_ICON |
3 | 7.98599 | 34192 | UNKNOWN | English - United States | RT_ICON |
4 | 5.28025 | 4264 | UNKNOWN | English - United States | RT_ICON |
5 | 5.01189 | 9640 | UNKNOWN | English - United States | RT_ICON |
6 | 5.01384 | 16936 | UNKNOWN | English - United States | RT_ICON |
7 | 6.28347 | 90 | UNKNOWN | English - United States | RT_STRING |
8 | 5.3014 | 4264 | UNKNOWN | English - United States | RT_ICON |
9 | 4.93963 | 9640 | UNKNOWN | English - United States | RT_ICON |
10 | 4.80616 | 16936 | UNKNOWN | English - United States | RT_ICON |
Imports
comctl32.dll |
kernel32.dll |
Total processes
42
Monitored processes
3
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1284 | "C:\Users\admin\AppData\Local\Temp\MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe" | C:\Users\admin\AppData\Local\Temp\MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | — | Explorer.EXE | |||||||||||
User: admin Company: ???? Integrity Level: MEDIUM Description: MuMu??? Exit code: 3221226540 Version: 1.0.5.0 Modules
| |||||||||||||||
| 2520 | C:\Users\admin\AppData\Local\Temp\aria2c.exe --log=C:\Users\admin\AppData\Local\Temp\nemu-downloader-aria.log --log-level=notice --check-certificate=false --enable-rpc=true --rpc-listen-port=63386 --continue --max-concurrent-downloads=10 --max-connection-per-server=5 --async-dns=false --file-allocation=trunc --connect-timeout=5 --rpc-max-request-size=1024M --max-overall-download-limit=50000K --stop-with-process=2560 | C:\Users\admin\AppData\Local\Temp\aria2c.exe | MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 2560 | "C:\Users\admin\AppData\Local\Temp\MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe" | C:\Users\admin\AppData\Local\Temp\MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | Explorer.EXE | ||||||||||||
User: admin Company: ???? Integrity Level: HIGH Description: MuMu??? Exit code: 0 Version: 1.0.5.0 Modules
| |||||||||||||||
Total events
10 016
Read events
10 001
Write events
15
Delete events
0
Modification events
| (PID) Process: | (2560) MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16B\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2560) MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\NemuServer |
| Operation: | write | Name: | uuid |
Value: eaf24729-c4bd-475e-b87a-aad48ed42973 | |||
| (PID) Process: | (2560) MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\NemuServer |
| Operation: | write | Name: | channel |
Value: gw-overseas | |||
| (PID) Process: | (2560) MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\NemuServer |
| Operation: | write | Name: | package |
Value: mumu | |||
Executable files
9
Suspicious files
3
Text files
2
Unknown types
8
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2520 | aria2c.exe | C:\Users\admin\AppData\Local\Temp\nemu-hypervisor-5.0.14-x86-0702164401.exe | — | |
MD5:— | SHA256:— | |||
| 2560 | MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | C:\Users\admin\AppData\Local\Temp\config.ini | text | |
MD5:— | SHA256:— | |||
| 2560 | MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | C:\Users\admin\AppData\Local\Temp\WinRing0x64.Sys | executable | |
MD5:1C57D067B9FC5E9EF9AEB14223481243 | SHA256:D5BCA2CA464A6CC91344BD85E812A7BAC6E7C67038C4929A29E0BC60C7EABE4D | |||
| 2560 | MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | C:\Users\admin\AppData\Local\Temp\WinRing0x64.Inf | binary | |
MD5:0F6D3047D1B670058D71C411707EF16E | SHA256:3FDED2F4457B0BEB415B841B40F6EDE5ED527DD537E53E2F70F2FB4A6E24EBFD | |||
| 2560 | MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | C:\Users\admin\AppData\Local\Temp\skin.zip | compressed | |
MD5:— | SHA256:— | |||
| 2520 | aria2c.exe | C:\Users\admin\AppData\Local\Temp\nemu-2.5.17.4-x86-overseas-0702162542.exe.aria2__temp | pi2 | |
MD5:— | SHA256:— | |||
| 2520 | aria2c.exe | C:\Users\admin\AppData\Local\Temp\nemu-2.5.17.4-x86-overseas-0702162542.exe.aria2 | pi2 | |
MD5:— | SHA256:— | |||
| 2560 | MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | C:\Users\admin\AppData\Local\Temp\crashrpt_lang.ini | text | |
MD5:4CA209C131119E28C581447D10F5F9DB | SHA256:EB3DD1604138B82F9BA13A180D71E513599D201B4A6EABA814179D12BFE97ABB | |||
| 2560 | MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | C:\Users\admin\AppData\Local\Temp\CrashSender1403.exe | executable | |
MD5:FB69574820BA31EC67EE8EF1F13A07CA | SHA256:E919757A721A2D2C057B0D43D795F68C0B5E3FBD3AE29E946ED374EBC80C223B | |||
| 2560 | MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | C:\Users\admin\AppData\Local\Temp\WinRing0.Sys | executable | |
MD5:A73EE34A7A50BE60E77CC277A96D7BA8 | SHA256:4448BEFF8366E42E3393E8C7F8261AEE0B0340356C31AA3B97DE07452AE01888 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
6
TCP/UDP connections
7
DNS requests
2
Threats
9
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2520 | aria2c.exe | GET | — | 72.247.184.170:80 | http://a11.gdl.netease.com/nemu-2.5.17.4-x86-overseas-0702162542.exe | NL | — | — | whitelisted |
2520 | aria2c.exe | GET | — | 72.247.184.170:80 | http://a11.gdl.netease.com/nemu-2.5.17.4-x86-overseas-0702162542.exe | NL | — | — | whitelisted |
2520 | aria2c.exe | GET | 200 | 72.247.184.170:80 | http://a11.gdl.netease.com/nemu-hypervisor-5.0.14-x86-0702164401.exe | NL | executable | 34.5 Mb | whitelisted |
2520 | aria2c.exe | GET | — | 72.247.184.170:80 | http://a11.gdl.netease.com/nemu-2.5.17.4-x86-overseas-0702162542.exe | NL | — | — | whitelisted |
2520 | aria2c.exe | GET | — | 72.247.184.170:80 | http://a11.gdl.netease.com/nemu-2.5.17.4-x86-overseas-0702162542.exe | NL | — | — | whitelisted |
2520 | aria2c.exe | GET | — | 72.247.184.170:80 | http://a11.gdl.netease.com/nemu-2.5.17.4-x86-overseas-0702162542.exe | NL | — | — | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2560 | MuMuInstaller_1.2.0.8_gw-overseas_all_1626416359.exe | 52.196.71.202:443 | api.mumuglobal.com | Amazon.com, Inc. | JP | unknown |
2520 | aria2c.exe | 72.247.184.170:80 | a11.gdl.netease.com | Akamai International B.V. | NL | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
api.mumuglobal.com |
| unknown |
a11.gdl.netease.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | A Network Trojan was detected | ET USER_AGENTS Aria2 User-Agent |
— | — | Potentially Bad Traffic | ET POLICY Executable served from Amazon S3 |
— | — | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
— | — | Potentially Bad Traffic | ET POLICY Executable served from Amazon S3 |
— | — | A Network Trojan was detected | ET USER_AGENTS Aria2 User-Agent |
— | — | A Network Trojan was detected | ET USER_AGENTS Aria2 User-Agent |
— | — | A Network Trojan was detected | ET USER_AGENTS Aria2 User-Agent |
— | — | A Network Trojan was detected | ET USER_AGENTS Aria2 User-Agent |
— | — | A Network Trojan was detected | ET USER_AGENTS Aria2 User-Agent |