| File name: | ADJUNTO ARCHIVO CON CUENTA DE COBRO POR $2.000.000, FAVOR DESCARGAR PARA SU PAGO OPORTUNO.rev |
| Full analysis: | https://app.any.run/tasks/d0915059-e924-4ac3-84d4-14a61a1510d8 |
| 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: | September 13, 2024, 19:48:52 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-rar |
| File info: | RAR archive data, v5 |
| MD5: | BE7680C8BFC44034C8F7CD6B0C9D0DD2 |
| SHA1: | 3C38FE2FEA65B5C677CC7EFF93CD5DFA2350567F |
| SHA256: | 57F458BA299FFB24F922E3AD863F510CCDC1FD0FEE44C3AB8B134186D9DDFC01 |
| SSDEEP: | 24576:RwqhrFKV+bg7wP7ZDIrnJ7I6NYhFPAkHgazHKhoy5oNCr:RwkrIV+bg7wP7ZD2nJ7IGYhFPAkHgazy |
MALICIOUS
REMCOS has been detected
- cmd.exe (PID: 6412)
- schtasks.exe (PID: 5760)
- RegAsm.exe (PID: 1656)
Uses Task Scheduler to run other applications
- cmd.exe (PID: 6412)
REMCOS has been detected (SURICATA)
- RegAsm.exe (PID: 1656)
Connects to the CnC server
- RegAsm.exe (PID: 1656)
SUSPICIOUS
Created directory related to system
- cmd.exe (PID: 6460)
Connects to unusual port
- RegAsm.exe (PID: 1656)
Contacting a server suspected of hosting an CnC
- RegAsm.exe (PID: 1656)
Reads security settings of Internet Explorer
- RegAsm.exe (PID: 1656)
- WinRAR.exe (PID: 3584)
Starts CMD.EXE for commands execution
- ADJUNTO ARCHIVO CON CUENTA DE COBRO POR $2.000.000, FAVOR DESCARGAR PARA SU PAGO OPORTUNO.exe (PID: 6364)
Checks for external IP
- RegAsm.exe (PID: 1656)
INFO
The process uses the downloaded file
- WinRAR.exe (PID: 3584)
Reads the machine GUID from the registry
- ADJUNTO ARCHIVO CON CUENTA DE COBRO POR $2.000.000, FAVOR DESCARGAR PARA SU PAGO OPORTUNO.exe (PID: 6364)
Checks supported languages
- ADJUNTO ARCHIVO CON CUENTA DE COBRO POR $2.000.000, FAVOR DESCARGAR PARA SU PAGO OPORTUNO.exe (PID: 6364)
- RegAsm.exe (PID: 1656)
Reads the computer name
- ADJUNTO ARCHIVO CON CUENTA DE COBRO POR $2.000.000, FAVOR DESCARGAR PARA SU PAGO OPORTUNO.exe (PID: 6364)
- RegAsm.exe (PID: 1656)
Checks proxy server information
- RegAsm.exe (PID: 1656)
Creates files in the program directory
- RegAsm.exe (PID: 1656)
Creates files or folders in the user directory
- RegAsm.exe (PID: 1656)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .rar | | | RAR compressed archive (v5.0) (61.5) |
|---|---|---|
| .rar | | | RAR compressed archive (gen) (38.4) |
Total processes
136
Monitored processes
11
Malicious processes
5
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1656 | "C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | ADJUNTO ARCHIVO CON CUENTA DE COBRO POR $2.000.000, FAVOR DESCARGAR PARA SU PAGO OPORTUNO.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Version: 4.8.9037.0 built by: NET481REL1 Modules
| |||||||||||||||
| 2256 | C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s Dnscache | C:\Windows\System32\svchost.exe | services.exe | ||||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2368 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2876 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3584 | "C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\ADJUNTO ARCHIVO CON CUENTA DE COBRO POR $2.000.000, FAVOR DESCARGAR PARA SU PAGO OPORTUNO.rev.rar" | C:\Program Files\WinRAR\WinRAR.exe | — | explorer.exe | |||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Version: 5.91.0 Modules
| |||||||||||||||
| 4076 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5760 | schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\admin\AppData\Roaming\AppData\AppData.exe'" /f | C:\Windows\SysWOW64\schtasks.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Task Scheduler Configuration Tool Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6364 | "C:\Users\admin\AppData\Local\Temp\Rar$EXb3584.28176\ADJUNTO ARCHIVO CON CUENTA DE COBRO POR $2.000.000, FAVOR DESCARGAR PARA SU PAGO OPORTUNO.exe" | C:\Users\admin\AppData\Local\Temp\Rar$EXb3584.28176\ADJUNTO ARCHIVO CON CUENTA DE COBRO POR $2.000.000, FAVOR DESCARGAR PARA SU PAGO OPORTUNO.exe | — | WinRAR.exe | |||||||||||
User: admin Company: PandoraTV Integrity Level: MEDIUM Description: KMPlayer_Setup/Install_cdn Version: 4.2.3.17 Modules
| |||||||||||||||
| 6412 | "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\admin\AppData\Roaming\AppData\AppData.exe'" /f | C:\Windows\SysWOW64\cmd.exe | — | ADJUNTO ARCHIVO CON CUENTA DE COBRO POR $2.000.000, FAVOR DESCARGAR PARA SU PAGO OPORTUNO.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6460 | "cmd.exe" /C mkdir "C:\Users\admin\AppData\Roaming\AppData" | C:\Windows\SysWOW64\cmd.exe | — | ADJUNTO ARCHIVO CON CUENTA DE COBRO POR $2.000.000, FAVOR DESCARGAR PARA SU PAGO OPORTUNO.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 1 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
2 459
Read events
2 446
Write events
13
Delete events
0
Modification events
| (PID) Process: | (3584) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface |
| Operation: | write | Name: | ShowPassword |
Value: 0 | |||
| (PID) Process: | (3584) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 1 |
Value: C:\Users\admin\Desktop\GoogleChromeEnterpriseBundle64.zip | |||
| (PID) Process: | (3584) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\AppData\Local\Temp\ADJUNTO ARCHIVO CON CUENTA DE COBRO POR $2.000.000, FAVOR DESCARGAR PARA SU PAGO OPORTUNO.rev.rar | |||
| (PID) Process: | (3584) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (3584) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (3584) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (3584) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (1656) RegAsm.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\kiustong-7N6PEP |
| Operation: | write | Name: | exepath |
Value: 5463ED960EA67DA8E7B68740D28E7BCF58290F4CEB133373109A5DF57915D31BE2BCF717F8FEC7F82D95353C52D53BAC4D775911ED917BB48649BC71C45173E7C4E4383E58E31B05AFA3BE940EB7DA87FEDC25D382DEAB20AF054309E97697221682EFDB1FEF533EB2B68C7AC1B8E3BABA23 | |||
| (PID) Process: | (1656) RegAsm.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\kiustong-7N6PEP |
| Operation: | write | Name: | licence |
Value: C96C16D9F571A8C5AD619496106C5422 | |||
| (PID) Process: | (1656) RegAsm.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\kiustong-7N6PEP |
| Operation: | write | Name: | time |
Value: | |||
Executable files
0
Suspicious files
2
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3584 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$EXb3584.28176\ADJUNTO ARCHIVO CON CUENTA DE COBRO POR $2.000.000, FAVOR DESCARGAR PARA SU PAGO OPORTUNO.exe | — | |
MD5:— | SHA256:— | |||
| 1656 | RegAsm.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\IE\RR3E01RZ\json[1].json | binary | |
MD5:F57E94A953CB9159B01A884973CE8A0B | SHA256:1A43089F3AC35F27770EFB0AB9188C580837A110E2DD5038550A036FF13CDAAE | |||
| 1656 | RegAsm.exe | C:\ProgramData\data34\registros.dat | binary | |
MD5:E8A8FB4055CCA469586193E2D6F21F50 | SHA256:C933955E11BE8F713556A0344B73B2665F635C26F839035042D5E28F9182CE11 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
4
TCP/UDP connections
30
DNS requests
13
Threats
4
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1932 | svchost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
2120 | MoUsoCoreWorker.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
3984 | SIHClient.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
3984 | SIHClient.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.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 |
|---|---|---|---|---|---|---|
6320 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
6280 | RUXIMICS.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 |
2120 | MoUsoCoreWorker.exe | 23.35.229.160:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
3888 | svchost.exe | 239.255.255.250:1900 | — | — | — | whitelisted |
3260 | svchost.exe | 40.113.103.199:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
1932 | svchost.exe | 20.190.159.68:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
1932 | svchost.exe | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.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 |
comercio43.con-ip.com |
| unknown |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2256 | svchost.exe | Potentially Bad Traffic | ET INFO DNS Redirection Service Domain in DNS Lookup (con-ip .com) |
1656 | RegAsm.exe | Malware Command and Control Activity Detected | ET MALWARE Remcos 3.x Unencrypted Checkin |
1656 | RegAsm.exe | Malware Command and Control Activity Detected | ET MALWARE Remcos 3.x Unencrypted Server Response |
1 ETPRO signatures available at the full report