| File name: | mobsync.exe |
| Full analysis: | https://app.any.run/tasks/72b44cb6-4938-4e4f-b989-f45ef95a4b73 |
| Verdict: | Malicious activity |
| Threats: | Lumma is an information stealer, developed using the C programming language. It is offered for sale as a malware-as-a-service, with several plans available. It usually targets cryptocurrency wallets, login credentials, and other sensitive information on a compromised system. The malicious software regularly gets updates that improve and expand its functionality, making it a serious stealer threat. |
| Analysis date: | May 03, 2025, 02:48:14 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32+ executable (GUI) x86-64, for MS Windows, 10 sections |
| MD5: | E52CAFF871AA7355854151E689683E02 |
| SHA1: | 007441A5F063D0370C47027D9D3E18C33198B70F |
| SHA256: | 7C9FCB41D1570416789493118CA931B9037E650CFAEC9D6ED00FBA3F8CAF5448 |
| SSDEEP: | 98304:iS1P00mCaFcnKFQmh0fh0lRf9FI5/DOM/cZbvDZ+OcZxTfMZNrrqTrtMt28B1B5C:iWnMMQq+dmnMMQq+d |
MALICIOUS
LUMMA mutex has been found
- F8thM2Ad6r.exe (PID: 6728)
- MSBuild.exe (PID: 2088)
Create files in the Startup directory
- F8thM2Ad6r.exe (PID: 6728)
Actions looks like stealing of personal data
- MSBuild.exe (PID: 2088)
Steals credentials from Web Browsers
- MSBuild.exe (PID: 2088)
SUSPICIOUS
Process drops legitimate windows executable
- mobsync.exe (PID: 2656)
- MSBuild.exe (PID: 3300)
Starts a Microsoft application from unusual location
- mobsync.exe (PID: 2656)
Executable content was dropped or overwritten
- MSBuild.exe (PID: 3300)
- F8thM2Ad6r.exe (PID: 6728)
Reads security settings of Internet Explorer
- MSBuild.exe (PID: 3300)
The process creates files with name similar to system file names
- F8thM2Ad6r.exe (PID: 6728)
Searches for installed software
- MSBuild.exe (PID: 2088)
INFO
Checks supported languages
- mobsync.exe (PID: 2656)
- MSBuild.exe (PID: 3300)
- F8thM2Ad6r.exe (PID: 6728)
- aHFaZjcYnQ.exe (PID: 6872)
- MSBuild.exe (PID: 2088)
The sample compiled with english language support
- mobsync.exe (PID: 2656)
- MSBuild.exe (PID: 3300)
Creates files or folders in the user directory
- MSBuild.exe (PID: 3300)
- F8thM2Ad6r.exe (PID: 6728)
Reads the computer name
- MSBuild.exe (PID: 3300)
- F8thM2Ad6r.exe (PID: 6728)
- MSBuild.exe (PID: 2088)
Process checks computer location settings
- MSBuild.exe (PID: 3300)
Reads the software policy settings
- MSBuild.exe (PID: 2088)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Generic Win/DOS Executable (50) |
|---|---|---|
| .exe | | | DOS Executable Generic (49.9) |
EXIF
EXE
| MachineType: | AMD AMD64 |
|---|---|
| TimeStamp: | 2025:05:02 15:39:06+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware |
| PEType: | PE32+ |
| LinkerVersion: | 14 |
| CodeSize: | 280064 |
| InitializedDataSize: | 70144 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x2f4e8 |
| OSVersion: | 6 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 10.0.19041.4355 |
| ProductVersionNumber: | 10.0.19041.4355 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Windows NT 32-bit |
| ObjectFileType: | Dynamic link library |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Unicode |
| CompanyName: | Microsoft Corporation |
| FileDescription: | Microsoft Sync Center |
| FileVersion: | 10.0.19041.4355 (WinBuild.160101.0800) |
| InternalName: | mobsync.exe |
| LegalCopyright: | © Microsoft Corporation. All rights reserved. |
| OriginalFileName: | mobsync.exe |
| ProductName: | Microsoft® Windows® Operating System |
| ProductVersion: | 10.0.19041.4355 |
Total processes
132
Monitored processes
7
Malicious processes
5
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2088 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | aHFaZjcYnQ.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: MSBuild.exe Exit code: 0 Version: 4.8.9037.0 built by: NET481REL1 Modules
| |||||||||||||||
| 2656 | "C:\Users\admin\AppData\Local\Temp\mobsync.exe" | C:\Users\admin\AppData\Local\Temp\mobsync.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Sync Center Exit code: 0 Version: 10.0.19041.4355 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3300 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | mobsync.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: MSBuild.exe Exit code: 0 Version: 4.8.9037.0 built by: NET481REL1 Modules
| |||||||||||||||
| 3768 | "C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent | C:\Windows\System32\slui.exe | — | SppExtComObj.Exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows Activation Client Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6040 | C:\WINDOWS\system32\SppExtComObj.exe -Embedding | C:\Windows\System32\SppExtComObj.Exe | — | svchost.exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: KMS Connection Broker Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6728 | "C:\Users\admin\AppData\Roaming\F8thM2Ad6r.exe" | C:\Users\admin\AppData\Roaming\F8thM2Ad6r.exe | MSBuild.exe | ||||||||||||
User: admin Company: Microsoft Windows Integrity Level: MEDIUM Description: system32 Version: 15.6.13.6 Modules
| |||||||||||||||
| 6872 | "C:\Users\admin\AppData\Roaming\aHFaZjcYnQ.exe" | C:\Users\admin\AppData\Roaming\aHFaZjcYnQ.exe | — | MSBuild.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Sync Center Exit code: 0 Version: 10.0.19041.4355 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
1 017
Read events
1 017
Write events
0
Delete events
0
Modification events
Executable files
3
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3300 | MSBuild.exe | C:\Users\admin\AppData\Roaming\aHFaZjcYnQ.exe | executable | |
MD5:CB7947BB3CECB618E00A27E6F2747822 | SHA256:FD23ED3598671A78339696A462722B1295792315BDEAC3CF76493DD2DCC6546D | |||
| 6728 | F8thM2Ad6r.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svhost.exe | executable | |
MD5:3A96573C06D0D2479145387C10A27082 | SHA256:ED6731C5D5DE872E56816984FAF9BB056E4D3E3282862F2F626D2DF75B38D6DA | |||
| 3300 | MSBuild.exe | C:\Users\admin\AppData\Roaming\F8thM2Ad6r.exe | executable | |
MD5:3A96573C06D0D2479145387C10A27082 | SHA256:ED6731C5D5DE872E56816984FAF9BB056E4D3E3282862F2F626D2DF75B38D6DA | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
26
DNS requests
14
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 23.216.77.6:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
6544 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
4464 | SIHClient.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
4464 | SIHClient.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
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 | 192.168.100.255:138 | — | — | — | whitelisted |
2104 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 23.216.77.6:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
— | — | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
3216 | svchost.exe | 172.211.123.248:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
6544 | svchost.exe | 40.126.31.67:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
6544 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
2088 | MSBuild.exe | 104.21.80.1:443 | medicalbitkisel.net | CLOUDFLARENET | — | unknown |
2112 | svchost.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
crl.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
medicalbitkisel.net |
| unknown |
settings-win.data.microsoft.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |