| File name: | a1093988ffc08b4f74ea337bb31e6c7d3b4db9d9286a0d804c55d4c029b9b788 |
| Full analysis: | https://app.any.run/tasks/5461fb74-5773-4553-97f7-414a1272e999 |
| Verdict: | Malicious activity |
| Threats: | Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links. |
| Analysis date: | May 10, 2025, 01:30:19 |
| 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: | C268F8783B60EBC0639B1572C08D8606 |
| SHA1: | 0AA2F11FCF09AA770FB86A9348E4767854DFD525 |
| SHA256: | A1093988FFC08B4F74EA337BB31E6C7D3B4DB9D9286A0D804C55D4C029B9B788 |
| SSDEEP: | 49152:LHcCaFzVOA32hluA19L769YbzZYLI2N76z5NE81dCFFpwIpMGjKHo19INLoHGHX9:LRcV3+uA19L7h0I6Y5NE+Cd5+Ho8NxbA |
MALICIOUS
Create files in the Startup directory
- a1093988ffc08b4f74ea337bb31e6c7d3b4db9d9286a0d804c55d4c029b9b788.exe (PID: 1196)
REMCOS has been detected
- InstallUtil.exe (PID: 4400)
REMCOS mutex has been found
- InstallUtil.exe (PID: 4400)
REMCOS has been detected (YARA)
- InstallUtil.exe (PID: 4400)
SUSPICIOUS
Executable content was dropped or overwritten
- a1093988ffc08b4f74ea337bb31e6c7d3b4db9d9286a0d804c55d4c029b9b788.exe (PID: 1196)
Runs shell command (SCRIPT)
- wscript.exe (PID: 4408)
Connects to unusual port
- InstallUtil.exe (PID: 4400)
There is functionality for taking screenshot (YARA)
- InstallUtil.exe (PID: 4400)
INFO
Auto-launch of the file from Startup directory
- a1093988ffc08b4f74ea337bb31e6c7d3b4db9d9286a0d804c55d4c029b9b788.exe (PID: 1196)
Reads the computer name
- a1093988ffc08b4f74ea337bb31e6c7d3b4db9d9286a0d804c55d4c029b9b788.exe (PID: 1196)
- InstallUtil.exe (PID: 4400)
- InheritanceFlags.exe (PID: 6272)
Checks supported languages
- a1093988ffc08b4f74ea337bb31e6c7d3b4db9d9286a0d804c55d4c029b9b788.exe (PID: 1196)
- InstallUtil.exe (PID: 4400)
- InheritanceFlags.exe (PID: 6272)
Creates files or folders in the user directory
- a1093988ffc08b4f74ea337bb31e6c7d3b4db9d9286a0d804c55d4c029b9b788.exe (PID: 1196)
Reads the machine GUID from the registry
- a1093988ffc08b4f74ea337bb31e6c7d3b4db9d9286a0d804c55d4c029b9b788.exe (PID: 1196)
- InheritanceFlags.exe (PID: 6272)
Manual execution by a user
- InstallUtil.exe (PID: 4400)
- wscript.exe (PID: 4408)
- InstallUtil.exe (PID: 920)
UPX packer has been detected
- InstallUtil.exe (PID: 4400)
Reads the software policy settings
- slui.exe (PID: 1628)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
Remcos
(PID) Process(4400) InstallUtil.exe
C2 (1)198.23.227.212:32583
Botnetyavakosa1
Options
Connect_interval1
Install_flagFalse
Install_HKCU\RunTrue
Install_HKLM\Explorer\Run1
Install_HKLM\Winlogon\Shell100000
Setup_path%APPDATA%
Copy_fileyavascript.exe
Startup_valueFalse
Hide_fileFalse
Mutex_nameRmc-YH4WGR
Keylog_flag0
Keylog_path%LOCALAPPDATA%
Keylog_filelogs.dat
Keylog_cryptFalse
Hide_keylogFalse
Screenshot_flagFalse
Screenshot_time5
Take_ScreenshotFalse
Screenshot_path%APPDATA%
Screenshot_fileScreenshots
Screenshot_cryptFalse
Mouse_optionFalse
Delete_fileFalse
Audio_record_time5
Audio_path%ProgramFiles%
Audio_dirMicRecords
Connect_delay0
Keylog_dirremcos
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (63.1) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (23.8) |
| .dll | | | Win32 Dynamic Link Library (generic) (5.6) |
| .exe | | | Win32 Executable (generic) (3.8) |
| .exe | | | Generic Win/DOS Executable (1.7) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2025:04:28 06:31:13+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 1397760 |
| InitializedDataSize: | 2048 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x15726e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.0.1468.4252 |
| ProductVersionNumber: | 1.0.1468.4252 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | A2DAY2 |
| FileVersion: | 1.0.1468.4252 |
| InternalName: | A2DAY2.exe |
| LegalCopyright: | Copyright © 2012 |
| LegalTrademarks: | - |
| OriginalFileName: | A2DAY2.exe |
| ProductName: | A2DAY2 |
| ProductVersion: | 1.0.1468.4252 |
| AssemblyVersion: | 1.0.5336.21209 |
Total processes
137
Monitored processes
8
Malicious processes
1
Suspicious processes
2
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 920 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: .NET Framework installation utility Exit code: 3221225496 Version: 4.8.9037.0 built by: NET481REL1 Modules
| |||||||||||||||
| 1196 | "C:\Users\admin\AppData\Local\Temp\a1093988ffc08b4f74ea337bb31e6c7d3b4db9d9286a0d804c55d4c029b9b788.exe" | C:\Users\admin\AppData\Local\Temp\a1093988ffc08b4f74ea337bb31e6c7d3b4db9d9286a0d804c55d4c029b9b788.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: A2DAY2 Exit code: 4294967295 Version: 1.0.1468.4252 Modules
| |||||||||||||||
| 1628 | "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
| |||||||||||||||
| 1852 | 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
| |||||||||||||||
| 4400 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: .NET Framework installation utility Version: 4.8.9037.0 built by: NET481REL1 Modules
Remcos(PID) Process(4400) InstallUtil.exe C2 (1)198.23.227.212:32583 Botnetyavakosa1 Options Connect_interval1 Install_flagFalse Install_HKCU\RunTrue Install_HKLM\Explorer\Run1 Install_HKLM\Winlogon\Shell100000 Setup_path%APPDATA% Copy_fileyavascript.exe Startup_valueFalse Hide_fileFalse Mutex_nameRmc-YH4WGR Keylog_flag0 Keylog_path%LOCALAPPDATA% Keylog_filelogs.dat Keylog_cryptFalse Hide_keylogFalse Screenshot_flagFalse Screenshot_time5 Take_ScreenshotFalse Screenshot_path%APPDATA% Screenshot_fileScreenshots Screenshot_cryptFalse Mouse_optionFalse Delete_fileFalse Audio_record_time5 Audio_path%ProgramFiles% Audio_dirMicRecords Connect_delay0 Keylog_dirremcos | |||||||||||||||
| 4408 | wscript "C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\InheritanceFlags.vbs" | C:\Windows\System32\wscript.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft ® Windows Based Script Host Exit code: 0 Version: 5.812.10240.16384 Modules
| |||||||||||||||
| 6228 | C:\WINDOWS\System32\slui.exe -Embedding | C:\Windows\System32\slui.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Activation Client Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6272 | "C:\Users\admin\AppData\Roaming\InheritanceFlags.exe" | C:\Users\admin\AppData\Roaming\InheritanceFlags.exe | — | wscript.exe | |||||||||||
User: admin Integrity Level: MEDIUM Description: A2DAY2 Exit code: 4294967295 Version: 1.0.1468.4252 Modules
| |||||||||||||||
Total events
1 601
Read events
1 597
Write events
4
Delete events
0
Modification events
| (PID) Process: | (4400) InstallUtil.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-YH4WGR |
| Operation: | write | Name: | exepath |
Value: 997AC34A204D79F2B9F156476F2DA1DB5EAE9092E0259AC87FA046822EE61FC27260056E18FC1DD437BC873E283BB83C848A0BE3B2EA3C5B7A91113BC0FA393AB53750399A581873FCB32C555BE745F4201918F406C9CA27F687C439C2A37C0B79B49E065147DED198EC36D0DA4DCD96B5C50856FF78EAB8D5F2D7E5 | |||
| (PID) Process: | (4400) InstallUtil.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-YH4WGR |
| Operation: | write | Name: | licence |
Value: 45EA32F1605AFD8229C79B27236F549A | |||
| (PID) Process: | (4400) InstallUtil.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-YH4WGR |
| Operation: | write | Name: | time |
Value: | |||
| (PID) Process: | (4400) InstallUtil.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-YH4WGR |
| Operation: | write | Name: | UID |
Value: | |||
Executable files
1
Suspicious files
0
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1196 | a1093988ffc08b4f74ea337bb31e6c7d3b4db9d9286a0d804c55d4c029b9b788.exe | C:\Users\admin\AppData\Roaming\InheritanceFlags.exe | executable | |
MD5:C268F8783B60EBC0639B1572C08D8606 | SHA256:A1093988FFC08B4F74EA337BB31E6C7D3B4DB9D9286A0D804C55D4C029B9B788 | |||
| 1196 | a1093988ffc08b4f74ea337bb31e6c7d3b4db9d9286a0d804c55d4c029b9b788.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\InheritanceFlags.vbs | text | |
MD5:D23CFEBC8627A34923E83FAC9B3869E1 | SHA256:097788D92F31E6C41400F267910DE9F04E80B56BCDA379B74CCB5DBD524027A3 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
176
DNS requests
16
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 23.48.23.143:80 | 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 |
516 | SIHClient.exe | GET | 200 | 2.23.246.101:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
516 | SIHClient.exe | GET | 200 | 2.23.246.101:80 | 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 |
|---|---|---|---|---|---|---|
— | — | 192.168.100.255:137 | — | — | — | whitelisted |
2104 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 23.48.23.143:80 | 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 |
4400 | InstallUtil.exe | 198.23.227.212:32583 | — | AS-COLOCROSSING | US | malicious |
3216 | svchost.exe | 172.211.123.248:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
6544 | svchost.exe | 20.190.159.128:443 | 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 |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
activation-v2.sls.microsoft.com |
| whitelisted |