| File name: | Ransomware [RSA-4096][AES-256] OpenSource.exe |
| Full analysis: | https://app.any.run/tasks/2a491385-c106-42ac-8de3-dbcf55e56310 |
| Verdict: | Malicious activity |
| Threats: | DarkComet RAT is a malicious program designed to remotely control or administer a victim's computer, steal private data and spy on the victim. |
| Analysis date: | September 17, 2024, 13:46:31 |
| 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, UPX compressed |
| MD5: | 58D328C859ED26102D84959E95DE9BCA |
| SHA1: | D40750FD353B093A0418B167ECCD4C2124C64594 |
| SHA256: | 71E944842708DDE91A617790C517A3295DB2EA867F894C4F465BFEE2977FBE38 |
| SSDEEP: | 6144:rcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37PpdHQdH:rcW7KEZlPzCy37RdeH |
MALICIOUS
DARKCOMET has been detected (YARA)
- winlogon.exe (PID: 3528)
SUSPICIOUS
There is functionality for taking screenshot (YARA)
- winlogon.exe (PID: 3528)
Executable content was dropped or overwritten
- Ransomware [RSA-4096][AES-256] OpenSource.exe (PID: 3240)
Starts itself from another location
- Ransomware [RSA-4096][AES-256] OpenSource.exe (PID: 3240)
There is functionality for communication over UDP network (YARA)
- winlogon.exe (PID: 3528)
Connects to unusual port
- winlogon.exe (PID: 3528)
INFO
UPX packer has been detected
- winlogon.exe (PID: 3528)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | UPX compressed Win32 Executable (38.2) |
|---|---|---|
| .exe | | | Win32 EXE Yoda's Crypter (37.5) |
| .dll | | | Win32 Dynamic Link Library (generic) (9.2) |
| .exe | | | Win32 Executable (generic) (6.3) |
| .exe | | | Win16/32 Executable Delphi generic (2.9) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2012:06:07 15:59:53+00:00 |
| ImageFileCharacteristics: | No relocs, Executable, No line numbers, No symbols, Bytes reversed lo, 32-bit, Bytes reversed hi |
| PEType: | PE32 |
| LinkerVersion: | 2.25 |
| CodeSize: | 253952 |
| InitializedDataSize: | 24576 |
| UninitializedDataSize: | 503808 |
| EntryPoint: | 0xb97b0 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 4.0.0.0 |
| ProductVersionNumber: | 4.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Unicode |
| Comments: | Remote Service Application |
| CompanyName: | Microsoft Corp. |
| FileDescription: | Remote Service Application |
| FileVersion: | 1, 0, 0, 1 |
| InternalName: | MSRSAAPP |
| LegalCopyright: | Copyright (C) 1999 |
| OriginalFileName: | MSRSAAP.EXE |
| ProductName: | Remote Service Application |
| ProductVersion: | 4, 0, 0, 0 |
Total processes
45
Monitored processes
10
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1060 | C:\Windows\system32\svchost.exe -k NetworkService | C:\Windows\System32\svchost.exe | services.exe | ||||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1948 | "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\admin\Desktop" +s +h | C:\Windows\System32\cmd.exe | — | Ransomware [RSA-4096][AES-256] OpenSource.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2784 | notepad | C:\Windows\System32\notepad.exe | — | Ransomware [RSA-4096][AES-256] OpenSource.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Notepad Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2792 | notepad | C:\Windows\System32\notepad.exe | — | winlogon.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Notepad Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3088 | "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
| |||||||||||||||
| 3240 | "C:\Users\admin\Desktop\Ransomware [RSA-4096][AES-256] OpenSource.exe" | C:\Users\admin\Desktop\Ransomware [RSA-4096][AES-256] OpenSource.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corp. Integrity Level: MEDIUM Description: Remote Service Application Exit code: 0 Version: 1, 0, 0, 1 Modules
| |||||||||||||||
| 3284 | attrib "C:\Users\admin\Desktop\Ransomware [RSA-4096][AES-256] OpenSource.exe" +s +h | C:\Windows\System32\attrib.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Attribute Utility Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3528 | "C:\Users\admin\AppData\Roaming\winlogon.exe" | C:\Users\admin\AppData\Roaming\winlogon.exe | Ransomware [RSA-4096][AES-256] OpenSource.exe | ||||||||||||
User: admin Company: Microsoft Corp. Integrity Level: MEDIUM Description: Remote Service Application Version: 1, 0, 0, 1 Modules
| |||||||||||||||
| 3812 | attrib "C:\Users\admin\Desktop" +s +h | C:\Windows\System32\attrib.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Attribute Utility Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 4028 | "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\admin\Desktop\Ransomware [RSA-4096][AES-256] OpenSource.exe" +s +h | C:\Windows\System32\cmd.exe | — | Ransomware [RSA-4096][AES-256] OpenSource.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
Total events
1 524
Read events
1 491
Write events
33
Delete events
0
Modification events
| (PID) Process: | (3240) Ransomware [RSA-4096][AES-256] OpenSource.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | windows |
Value: C:\Users\admin\AppData\Roaming\winlogon.exe | |||
| (PID) Process: | (3240) Ransomware [RSA-4096][AES-256] OpenSource.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon |
| Operation: | write | Name: | UserInit |
Value: C:\Windows\system32\userinit.exe,C:\Users\admin\AppData\Roaming\winlogon.exe | |||
| (PID) Process: | (3240) Ransomware [RSA-4096][AES-256] OpenSource.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (3240) Ransomware [RSA-4096][AES-256] OpenSource.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (3240) Ransomware [RSA-4096][AES-256] OpenSource.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (3240) Ransomware [RSA-4096][AES-256] OpenSource.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (3240) Ransomware [RSA-4096][AES-256] OpenSource.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (3528) winlogon.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | windows |
Value: C:\Users\admin\AppData\Roaming\winlogon.exe | |||
| (PID) Process: | (1060) svchost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WSMAN\SafeClientList |
| Operation: | write | Name: | WSManSafeClientList |
Value: 000000000000000000000000000000018E84EBBB000000000000000000000000 | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3240 | Ransomware [RSA-4096][AES-256] OpenSource.exe | C:\Users\admin\AppData\Roaming\winlogon.exe | executable | |
MD5:58D328C859ED26102D84959E95DE9BCA | SHA256:71E944842708DDE91A617790C517A3295DB2EA867F894C4F465BFEE2977FBE38 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
13
DNS requests
6
Threats
4
HTTP requests
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 |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 224.0.0.252:5355 | — | — | — | whitelisted |
3528 | winlogon.exe | 1.2.3.4:1604 | kvejo991.ddns.net | — | AU | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
google.com |
| whitelisted |
kvejo991.ddns.net |
| malicious |
dns.msftncsi.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1060 | svchost.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |
1060 | svchost.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |
1060 | svchost.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |
1060 | svchost.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |