| File name: | d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1 |
| Full analysis: | https://app.any.run/tasks/643dbee4-dc47-4c6e-9903-aab517953f9c |
| 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: | May 18, 2025, 18:20:30 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections |
| MD5: | 9AB15F7127F7C5B85EA1295E80C0C01A |
| SHA1: | 69BE3FE1F42E4F342689347D0F7B9D72370CF145 |
| SHA256: | D4F354A82179CEFB8DDB5CACF042457D00666266A76B1C949352AE4F55A072F1 |
| SSDEEP: | 384:k9nGbneZKIYRlkECZhAc5gxYHfUVIwsGRGrDF:k9nGbnecIOl4gxifUBsG0V |
MALICIOUS
Renames files like ransomware
- rundll32.exe (PID: 7604)
Changes the autorun value in the registry
- rundll32.exe (PID: 7604)
SUSPICIOUS
The process creates files with name similar to system file names
- d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1.exe (PID: 7540)
Executable content was dropped or overwritten
- d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1.exe (PID: 7540)
Reads security settings of Internet Explorer
- d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1.exe (PID: 7540)
Reads the date of Windows installation
- d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1.exe (PID: 7540)
Starts itself from another location
- d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1.exe (PID: 7540)
Found regular expressions for crypto-addresses (YARA)
- rundll32.exe (PID: 7604)
INFO
Reads the computer name
- d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1.exe (PID: 7540)
- rundll32.exe (PID: 7604)
Creates files or folders in the user directory
- d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1.exe (PID: 7540)
Checks supported languages
- d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1.exe (PID: 7540)
- rundll32.exe (PID: 7604)
Process checks computer location settings
- d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1.exe (PID: 7540)
Reads the machine GUID from the registry
- rundll32.exe (PID: 7604)
Create files in a temporary directory
- rundll32.exe (PID: 7604)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (47.7) |
|---|---|---|
| .scr | | | Windows screen saver (22.6) |
| .dll | | | Win32 Dynamic Link Library (generic) (11.3) |
| .exe | | | Win32 Executable (generic) (7.7) |
| .exe | | | Win16/32 Executable Delphi generic (3.5) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2023:10:13 11:36:53+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 11 |
| CodeSize: | 22016 |
| InitializedDataSize: | 2048 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x759e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 0.0.0.0 |
| ProductVersionNumber: | 0.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| FileDescription: | |
| FileVersion: | 0.0.0.0 |
| InternalName: | RSA256.exe |
| LegalCopyright: | |
| OriginalFileName: | RSA256.exe |
| ProductVersion: | 0.0.0.0 |
| AssemblyVersion: | 0.0.0.0 |
Total processes
131
Monitored processes
4
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7540 | "C:\Users\admin\AppData\Local\Temp\d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1.exe" | C:\Users\admin\AppData\Local\Temp\d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Exit code: 1 Version: 0.0.0.0 Modules
| |||||||||||||||
| 7604 | "C:\Users\admin\AppData\Local\rundll32.exe" | C:\Users\admin\AppData\Local\rundll32.exe | d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Version: 0.0.0.0 Modules
| |||||||||||||||
| 7724 | 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
| |||||||||||||||
| 7756 | "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
| |||||||||||||||
Total events
551
Read events
550
Write events
1
Delete events
0
Modification events
| (PID) Process: | (7604) rundll32.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | Readme |
Value: C:\Users\admin\AppData\Local\rundll32.exe | |||
Executable files
1
Suspicious files
82
Text files
15
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 7604 | rundll32.exe | C:\Users\admin\Desktop\commercebay.jpg.hENOy | binary | |
MD5:1BD6D23000023830123549EEFAEAED25 | SHA256:75A9929F9FB8648C749CA6E7EBBC621706EF128BC922D436C323BD1C182BC693 | |||
| 7540 | d4f354a82179cefb8ddb5cacf042457d00666266a76b1c949352ae4f55a072f1.exe | C:\Users\admin\AppData\Local\rundll32.exe | executable | |
MD5:9AB15F7127F7C5B85EA1295E80C0C01A | SHA256:D4F354A82179CEFB8DDB5CACF042457D00666266A76B1C949352AE4F55A072F1 | |||
| 7604 | rundll32.exe | C:\Users\admin\Desktop\havingterm.png.2zliT | binary | |
MD5:E7FED1294BB6DB9D20DFC8561AFEE70C | SHA256:A369333FE7AD6EB37BD7D5BEC2AEA25B67BBCC4E813A0359F62F98F3798CF3AC | |||
| 7604 | rundll32.exe | C:\Users\admin\Desktop\boardseducational.jpg.cCZ5A | binary | |
MD5:0CDC191D456B46CE25F90D249B61F3BE | SHA256:E6CB6DF072F6B7E9D2B7595703C5D4D9E52695C91EE011D9EE27636992DA86C0 | |||
| 7604 | rundll32.exe | C:\Users\admin\Desktop\fatcool.png.80yeU | binary | |
MD5:E09D214638FC26C35A468AE44806A922 | SHA256:88361CE1635E30009D77079E3BDBBAB7D64B533C97C73F716CFDD0663F42ACCE | |||
| 7604 | rundll32.exe | C:\Users\admin\Desktop\Readme.txt | text | |
MD5:36021D2FE3DCAC88837ABAB5B1D89748 | SHA256:00ACF2D5AD8E0B5E59970213614F75D8D48B0A0C220BDA0BCE4F790549B876AF | |||
| 7604 | rundll32.exe | C:\Users\admin\Desktop\fatcool.png | binary | |
MD5:193361BCBBBB58F88985C7EDBEC4CD29 | SHA256:E9B9CBB4B93AA2DBA73026F72A1798CA02D40040A54A53CB8940FC699598E081 | |||
| 7604 | rundll32.exe | C:\Users\admin\Desktop\havingterm.png | binary | |
MD5:A5E02E42203915B3E8B8DCB7C281F0B6 | SHA256:BA25D56B3830711431BD0DD9BB8DC44C04CAD920B4A3E488CB5B1645EA20B758 | |||
| 7604 | rundll32.exe | C:\Users\admin\Desktop\boardseducational.jpg | binary | |
MD5:1E38EFC550958CF2A07A38861AB391AC | SHA256:DA685A73384A1F1388008E11A312C5FA0B83B385D89CD43D146C888AD4D81485 | |||
| 7604 | rundll32.exe | C:\Users\admin\Desktop\skinasian.rtf.31v4Q | binary | |
MD5:1C9A7B613A7742F70B05B43526E50735 | SHA256:D5E94009043CCED33407D3D013FB9B652874CA8BF2B575E72307A5FA8BB7FDCC | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
20
DNS requests
14
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 23.48.23.139:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
6544 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
6872 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
6872 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | 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 | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 23.48.23.139:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
— | — | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
6544 | svchost.exe | 20.190.160.4:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6544 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
3216 | svchost.exe | 172.211.123.249:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
2112 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
2104 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |