| File name: | MSUpdate.exe |
| Full analysis: | https://app.any.run/tasks/e28cee4d-3ff3-45b7-abfa-00e158f44ba5 |
| Verdict: | Malicious activity |
| Threats: | Ransomware is a type of malicious software that locks users out of their system or data using different methods to force them to pay a ransom. Most often, such programs encrypt files on an infected machine and demand a fee to be paid in exchange for the decryption key. Additionally, such programs can be used to steal sensitive information from the compromised computer and even conduct DDoS attacks against affected organizations to pressure them into paying. |
| Analysis date: | July 19, 2024, 09:46:37 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows |
| MD5: | 9CE01DFBF25DFEA778E57D8274675D6F |
| SHA1: | 1BD767BEB5BC36B396CA6405748042640AD57526 |
| SHA256: | 5343947829609F69E84FE7E8172C38EE018EDE3C9898D4895275F596AC54320D |
| SSDEEP: | 6144:4qZbqZToxIizLBZ6R56VkGM4ceLJ5vs5JGJceO/QCErIiuNAvwuq:4qZb8oR3D6R5QHXZJy/Q50imAvBq |
MALICIOUS
Drops the executable file immediately after the start
- MSUpdate.exe (PID: 2752)
TeslaCrypt is detected
- ociexdxtxqhx.exe (PID: 2960)
Changes the autorun value in the registry
- ociexdxtxqhx.exe (PID: 2960)
Deletes shadow copies
- ociexdxtxqhx.exe (PID: 2960)
Connects to the CnC server
- ociexdxtxqhx.exe (PID: 2960)
Modifies files in the Chrome extension folder
- ociexdxtxqhx.exe (PID: 2960)
Actions looks like stealing of personal data
- ociexdxtxqhx.exe (PID: 2960)
SUSPICIOUS
Executable content was dropped or overwritten
- MSUpdate.exe (PID: 2752)
Starts CMD.EXE for commands execution
- MSUpdate.exe (PID: 2752)
Starts itself from another location
- MSUpdate.exe (PID: 2752)
Reads security settings of Internet Explorer
- MSUpdate.exe (PID: 2752)
- ociexdxtxqhx.exe (PID: 2960)
Reads the Internet Settings
- ociexdxtxqhx.exe (PID: 2960)
- MSUpdate.exe (PID: 2752)
- WMIC.exe (PID: 2840)
Executes as Windows Service
- VSSVC.exe (PID: 3696)
Contacting a server suspected of hosting an CnC
- ociexdxtxqhx.exe (PID: 2960)
There is functionality for taking screenshot (YARA)
- ociexdxtxqhx.exe (PID: 2960)
INFO
Reads the computer name
- MSUpdate.exe (PID: 2752)
- ociexdxtxqhx.exe (PID: 2960)
Checks supported languages
- MSUpdate.exe (PID: 2752)
- ociexdxtxqhx.exe (PID: 2960)
Reads the machine GUID from the registry
- MSUpdate.exe (PID: 2752)
- ociexdxtxqhx.exe (PID: 2960)
Checks proxy server information
- ociexdxtxqhx.exe (PID: 2960)
Create files in a temporary directory
- ociexdxtxqhx.exe (PID: 2960)
Creates files or folders in the user directory
- ociexdxtxqhx.exe (PID: 2960)
Dropped object may contain TOR URL's
- ociexdxtxqhx.exe (PID: 2960)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .dll | | | Win32 Dynamic Link Library (generic) (43.5) |
|---|---|---|
| .exe | | | Win32 Executable (generic) (29.8) |
| .exe | | | Generic Win/DOS Executable (13.2) |
| .exe | | | DOS Executable Generic (13.2) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2016:02:28 18:15:11+00:00 |
| ImageFileCharacteristics: | No relocs, Executable, No line numbers, 32-bit, No debug |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 16384 |
| InitializedDataSize: | 626688 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x3c40 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 5.1.2600.5512 |
| ProductVersionNumber: | 5.1.2600.5512 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Windows NT 32-bit |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Unicode |
| CompanyName: | nah nah Corporation |
| FileDescription: | nah nahApp |
| FileVersion: | 1.600.5512 |
| InternalName: | nah nah |
| LegalCopyright: | ©nah nah Corporation. All rights reserved. |
| OriginalFileName: | nah nah |
| ProductName: | nah nah® |
| ProductVersion: | 1.9.0 |
Total processes
51
Monitored processes
7
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 540 | "C:\Windows\system32\cmd.exe" /c DEL C:\Users\admin\AppData\Local\Temp\MSUpdate.exe | C:\Windows\System32\cmd.exe | — | MSUpdate.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2752 | "C:\Users\admin\AppData\Local\Temp\MSUpdate.exe" | C:\Users\admin\AppData\Local\Temp\MSUpdate.exe | explorer.exe | ||||||||||||
User: admin Company: nah nah Corporation Integrity Level: HIGH Description: nah nahApp Exit code: 1 Version: 1.600.5512 Modules
| |||||||||||||||
| 2840 | "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive | C:\Windows\System32\wbem\WMIC.exe | — | ociexdxtxqhx.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: WMI Commandline Utility Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2960 | C:\Windows\ociexdxtxqhx.exe | C:\Windows\ociexdxtxqhx.exe | MSUpdate.exe | ||||||||||||
User: admin Company: nah nah Corporation Integrity Level: HIGH Description: nah nahApp Version: 1.600.5512 Modules
| |||||||||||||||
| 3384 | "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
| |||||||||||||||
| 3520 | "C:\Users\admin\AppData\Local\Temp\MSUpdate.exe" | C:\Users\admin\AppData\Local\Temp\MSUpdate.exe | — | explorer.exe | |||||||||||
User: admin Company: nah nah Corporation Integrity Level: MEDIUM Description: nah nahApp Exit code: 3221226540 Version: 1.600.5512 Modules
| |||||||||||||||
| 3696 | C:\Windows\system32\vssvc.exe | C:\Windows\System32\VSSVC.exe | — | services.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Microsoft® Volume Shadow Copy Service Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
4 844
Read events
4 789
Write events
46
Delete events
9
Modification events
| (PID) Process: | (2752) MSUpdate.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (2752) MSUpdate.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (2752) MSUpdate.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (2752) MSUpdate.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (2960) ociexdxtxqhx.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | eetbfhcqdssu |
Value: C:\Windows\system32\cmd.exe /c start "" "C:\Windows\ociexdxtxqhx.exe" | |||
| (PID) Process: | (2960) ociexdxtxqhx.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System |
| Operation: | write | Name: | EnableLinkedConnections |
Value: 1 | |||
| (PID) Process: | (2960) ociexdxtxqhx.exe | Key: | HKEY_CURRENT_USER\Software\xxxsys |
| Operation: | write | Name: | ID |
Value: 5FAB3963F11AC86A | |||
| (PID) Process: | (2960) ociexdxtxqhx.exe | Key: | HKEY_CURRENT_USER\Software\5FAB3963F11AC86A |
| Operation: | write | Name: | data |
Value: 3138344A523279726A58775278466D43634B4C57516B444147554347675038335348000000000000000000000000000004E0CE153BA1EB2F315169616F93F20735B19EDFFDF009D42077F4572FBC432936EBC0ECA010AEB2EC923949809B0DE7B2B945B2D9DE7B736DEC8D45C9890C2ACA5BB311F1CD8E7FEBA6F325A831A48D44BAE34929DFFE194D6CDD61093DDBAF350000000000000000000000000000000000000000000000000000000000000004D6337591BD581CF593061144A6E69A1E1ABAE98F6FC9E58B9710AFE9F594EB457281B9D7AB8713469FB911CCC2B9E25F199922E8A6D35BACC61522C9FBECB4430000000000000007369A6600000000 | |||
| (PID) Process: | (2960) ociexdxtxqhx.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (2960) ociexdxtxqhx.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
Executable files
1
Suspicious files
788
Text files
2 245
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2752 | MSUpdate.exe | C:\Windows\ociexdxtxqhx.exe | executable | |
MD5:9CE01DFBF25DFEA778E57D8274675D6F | SHA256:5343947829609F69E84FE7E8172C38EE018EDE3C9898D4895275F596AC54320D | |||
| 2960 | ociexdxtxqhx.exe | C:\Users\admin\Documents\recover_file_xpdywatnv.txt | text | |
MD5:84B7C1AF0363F1809AEA415D5ED15F39 | SHA256:D6F62386913950D6583C4409F9C65A6B113937A9CB880FA122CC5DA6B56EA2B3 | |||
| 2960 | ociexdxtxqhx.exe | C:\$Recycle.Bin\_RECOVERY_+ajqjp.txt | text | |
MD5:F3C6E81DD58DAF67E8C0E6218ECE8C35 | SHA256:C27BBBA837F042CD26BA381399DA840A7EC4B7D4BFC23B7988570A436485DE09 | |||
| 2960 | ociexdxtxqhx.exe | C:\Users\_RECOVERY_+ajqjp.txt | text | |
MD5:F3C6E81DD58DAF67E8C0E6218ECE8C35 | SHA256:C27BBBA837F042CD26BA381399DA840A7EC4B7D4BFC23B7988570A436485DE09 | |||
| 2960 | ociexdxtxqhx.exe | C:\Users\_RECOVERY_+ajqjp.html | html | |
MD5:AB5B01CDB2D03F1977FE6D197587CE22 | SHA256:3A835EF312B851A635965BA80AEA7FAEAC083380E045ABD4E459716354476378 | |||
| 2960 | ociexdxtxqhx.exe | C:\$Recycle.Bin\S-1-5-21-1302019708-1500728564-335382590-1000\_RECOVERY_+ajqjp.png | image | |
MD5:595E890A35B800F679CA0B433615DE71 | SHA256:4CE3C8E454E43878FF0E4F06C6914C6E33FB1314BB3E64E7406C6389189C4BFA | |||
| 2960 | ociexdxtxqhx.exe | C:\$Recycle.Bin\S-1-5-21-1302019708-1500728564-335382590-1000\_RECOVERY_+ajqjp.txt | text | |
MD5:F3C6E81DD58DAF67E8C0E6218ECE8C35 | SHA256:C27BBBA837F042CD26BA381399DA840A7EC4B7D4BFC23B7988570A436485DE09 | |||
| 2960 | ociexdxtxqhx.exe | C:\$Recycle.Bin\S-1-5-21-1302019708-1500728564-335382590-500\_RECOVERY_+ajqjp.txt | text | |
MD5:F3C6E81DD58DAF67E8C0E6218ECE8C35 | SHA256:C27BBBA837F042CD26BA381399DA840A7EC4B7D4BFC23B7988570A436485DE09 | |||
| 2960 | ociexdxtxqhx.exe | C:\$Recycle.Bin\S-1-5-21-1302019708-1500728564-335382590-500\_RECOVERY_+ajqjp.html | html | |
MD5:AB5B01CDB2D03F1977FE6D197587CE22 | SHA256:3A835EF312B851A635965BA80AEA7FAEAC083380E045ABD4E459716354476378 | |||
| 2960 | ociexdxtxqhx.exe | C:\$Recycle.Bin\S-1-5-21-1302019708-1500728564-335382590-1000\_RECOVERY_+ajqjp.html | html | |
MD5:AB5B01CDB2D03F1977FE6D197587CE22 | SHA256:3A835EF312B851A635965BA80AEA7FAEAC083380E045ABD4E459716354476378 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
8
TCP/UDP connections
20
DNS requests
13
Threats
4
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1372 | svchost.exe | GET | 304 | 23.50.131.216:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?33775f6043c93e33 | unknown | — | — | whitelisted |
2960 | ociexdxtxqhx.exe | POST | 301 | 162.241.224.203:80 | http://biocarbon.com.ec/wp-content/uploads/bstr.php | unknown | — | — | unknown |
2960 | ociexdxtxqhx.exe | POST | — | 85.128.188.138:80 | http://stacon.eu/bstr.php | unknown | — | — | unknown |
1060 | svchost.exe | GET | 304 | 199.232.214.172:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?60bcd71e49d094b3 | unknown | — | — | whitelisted |
2960 | ociexdxtxqhx.exe | POST | 404 | 3.94.41.167:80 | http://surrogacyandadoption.com/bstr.php | unknown | — | — | unknown |
2960 | ociexdxtxqhx.exe | POST | 200 | 104.155.138.21:80 | http://worldisonefamily.info/zz/libraries/bstr.php | unknown | — | — | unknown |
1372 | svchost.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
1372 | svchost.exe | GET | 200 | 23.48.23.156:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.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 |
|---|---|---|---|---|---|---|
— | — | 224.0.0.252:5355 | — | — | — | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
1060 | svchost.exe | 224.0.0.252:5355 | — | — | — | whitelisted |
2564 | svchost.exe | 239.255.255.250:3702 | — | — | — | whitelisted |
1372 | svchost.exe | 51.104.136.2:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
2960 | ociexdxtxqhx.exe | 162.241.224.203:80 | biocarbon.com.ec | UNIFIEDLAYER-AS-1 | US | unknown |
2960 | ociexdxtxqhx.exe | 162.241.224.203:443 | biocarbon.com.ec | UNIFIEDLAYER-AS-1 | US | unknown |
2960 | ociexdxtxqhx.exe | 85.128.188.138:80 | stacon.eu | Nazwa.pl Sp.z.o.o. | PL | unknown |
2960 | ociexdxtxqhx.exe | 3.94.41.167:80 | surrogacyandadoption.com | AMAZON-AES | US | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
google.com |
| whitelisted |
biocarbon.com.ec |
| malicious |
imagescroll.com |
| unknown |
music.mbsaeger.com |
| unknown |
stacon.eu |
| unknown |
surrogacyandadoption.com |
| unknown |
worldisonefamily.info |
| unknown |
settings-win.data.microsoft.com |
| whitelisted |
ctldl.windowsupdate.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2960 | ociexdxtxqhx.exe | Malware Command and Control Activity Detected | ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon |
2960 | ociexdxtxqhx.exe | Malware Command and Control Activity Detected | ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon |
2960 | ociexdxtxqhx.exe | Malware Command and Control Activity Detected | ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon |
2960 | ociexdxtxqhx.exe | Malware Command and Control Activity Detected | ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon |