File name:

Guia52854813478211183339575508881219445185860914945406996714.rar

Full analysis: https://app.any.run/tasks/0ba9c8ce-6c61-495d-8297-e1d98e6b6624
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: December 13, 2024, 23:14:31
OS: Windows 10 Professional (build: 19045, 64 bit)
Tags:
rat
remcos
remote
evasion
Indicators:
MIME: application/x-rar
File info: RAR archive data, v5
MD5:

10385AF3FE7D55E05D436911A36D429B

SHA1:

095DF5D220B34BB2049CA3391B7954FBB292061C

SHA256:

8B20B559FAD0A8581255AAAF961C2245B1F66904E276A4639A4A3941E03B5AFA

SSDEEP:

49152:r+YbqLLQWuezO4P3VvqWAmT0gVFsoq5hPD5I2ufd+5PFwSv5jHuxwpSSRgxX69iV:r+YbQL8X4fV1AmTbFsVhPDiY5PFwwuxF

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.
  • MALICIOUS

    • Create files in the Startup directory

      • Guia52854813478211183339575508881219445185860914945406996714.exe (PID: 6932)
    • REMCOS has been detected (SURICATA)

      • InstallUtil.exe (PID: 6968)
    • REMCOS has been detected

      • InstallUtil.exe (PID: 6968)
  • SUSPICIOUS

    • Reads security settings of Internet Explorer

      • WinRAR.exe (PID: 4864)
      • InstallUtil.exe (PID: 6968)
    • Contacting a server suspected of hosting an CnC

      • InstallUtil.exe (PID: 6968)
    • Checks for external IP

      • InstallUtil.exe (PID: 6968)
    • Connects to unusual port

      • InstallUtil.exe (PID: 6968)
    • Executable content was dropped or overwritten

      • Guia52854813478211183339575508881219445185860914945406996714.exe (PID: 6932)
  • INFO

    • Reads the computer name

      • Guia52854813478211183339575508881219445185860914945406996714.exe (PID: 6932)
      • InstallUtil.exe (PID: 6968)
    • Checks supported languages

      • InstallUtil.exe (PID: 6968)
      • Guia52854813478211183339575508881219445185860914945406996714.exe (PID: 6932)
    • Reads the machine GUID from the registry

      • Guia52854813478211183339575508881219445185860914945406996714.exe (PID: 6932)
      • InstallUtil.exe (PID: 6968)
    • Manual execution by a user

      • InstallUtil.exe (PID: 6968)
    • Checks proxy server information

      • InstallUtil.exe (PID: 6968)
    • The process uses the downloaded file

      • WinRAR.exe (PID: 4864)
    • Creates files or folders in the user directory

      • Guia52854813478211183339575508881219445185860914945406996714.exe (PID: 6932)
    • Executable content was dropped or overwritten

      • WinRAR.exe (PID: 4864)
    • Creates files in the program directory

      • InstallUtil.exe (PID: 6968)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.rar | RAR compressed archive (v5.0) (61.5)
.rar | RAR compressed archive (gen) (38.4)

EXIF

ZIP

FileVersion: RAR v5
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
128
Monitored processes
4
Malicious processes
1
Suspicious processes
2

Behavior graph

Click at the process to see the details
start svchost.exe winrar.exe guia52854813478211183339575508881219445185860914945406996714.exe #REMCOS installutil.exe

Process information

PID
CMD
Path
Indicators
Parent process
2192C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s DnscacheC:\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
Images
c:\windows\system32\svchost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\kernel.appcore.dll
4864"C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\AppData\Local\Temp\Guia52854813478211183339575508881219445185860914945406996714.rarC:\Program Files\WinRAR\WinRAR.exe
explorer.exe
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Version:
5.91.0
Modules
Images
c:\program files\winrar\winrar.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
6932"C:\Users\admin\AppData\Local\Temp\Rar$EXb4864.1058\Guia52854813478211183339575508881219445185860914945406996714.exe" C:\Users\admin\AppData\Local\Temp\Rar$EXb4864.1058\Guia52854813478211183339575508881219445185860914945406996714.exe
WinRAR.exe
User:
admin
Integrity Level:
MEDIUM
Description:
TRUMP
Exit code:
4294967295
Version:
1.0.0.0
Modules
Images
c:\users\admin\appdata\local\temp\rar$exb4864.1058\guia52854813478211183339575508881219445185860914945406996714.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\mscoree.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
6968"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
Images
c:\windows\microsoft.net\framework\v4.0.30319\installutil.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\user32.dll
c:\windows\syswow64\win32u.dll
Total events
2 546
Read events
2 531
Write events
15
Delete events
0

Modification events

(PID) Process:(4864) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface
Operation:writeName:ShowPassword
Value:
0
(PID) Process:(4864) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:writeName:3
Value:
C:\Users\admin\Desktop\preferences.zip
(PID) Process:(4864) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:writeName:2
Value:
C:\Users\admin\Desktop\chromium_ext.zip
(PID) Process:(4864) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:writeName:1
Value:
C:\Users\admin\Desktop\omni_23_10_2024_.zip
(PID) Process:(4864) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:writeName:0
Value:
C:\Users\admin\AppData\Local\Temp\Guia52854813478211183339575508881219445185860914945406996714.rar
(PID) Process:(4864) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:writeName:name
Value:
120
(PID) Process:(4864) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:writeName:size
Value:
80
(PID) Process:(4864) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:writeName:type
Value:
120
(PID) Process:(4864) WinRAR.exeKey:HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:writeName:mtime
Value:
100
(PID) Process:(6968) InstallUtil.exeKey:HKEY_CURRENT_USER\SOFTWARE\viverrmcgirasol-G9OH11
Operation:writeName:exepath
Value:
9D1F320B82C1256E6D1303D699C3D5B1690882D8024FBA2EBF6A1B5039693CB747A603A6D101787D0065141ECB3E3267A8A914F6DA16546336CD852950FFF87543D6F7E53E62A2130F67419831F60AEB3D7A4B8A4B14C4268E48C15C9E287354A539BA34A7B520C5EB2AE2A7A00D64EBF92810F25E0EC24EE023943C
Executable files
2
Suspicious files
2
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
6932Guia52854813478211183339575508881219445185860914945406996714.exeC:\Users\admin\AppData\Roaming\Resource.exeexecutable
MD5:4FC18B4B2149F073C269B445830F51DA
SHA256:BBE6A7EFB54A15ED57F3FF394ED4D7B17D2E385B7BD0985F2CFD382C04A467F8
4864WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$EXb4864.1058\Guia52854813478211183339575508881219445185860914945406996714.exeexecutable
MD5:4FC18B4B2149F073C269B445830F51DA
SHA256:BBE6A7EFB54A15ED57F3FF394ED4D7B17D2E385B7BD0985F2CFD382C04A467F8
6968InstallUtil.exeC:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\IE\RR3E01RZ\json[1].jsonbinary
MD5:BEA4C17B24876FCA821B769487218DBE
SHA256:BD3423CD64B9403FD972B79C9A874F2344369E79AFDD6BD58EB6FDF66E6B30F9
6968InstallUtil.exeC:\ProgramData\remcos\logs.datbinary
MD5:BD5FA18DA05C3FF10F1BE687942B2A37
SHA256:B0A5A9FD558E4A0A17D9811920BEEA413A6042EC3A0542BC445513733636EB8D
6932Guia52854813478211183339575508881219445185860914945406996714.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Resource.vbstext
MD5:658D8EEF95712D683B00B23CB644D50A
SHA256:D3627FA8F4EF667C810859044ACD8208D319BFDF70A33BAD73B1493651DCD617
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
8
TCP/UDP connections
34
DNS requests
21
Threats
3

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
6968
InstallUtil.exe
GET
200
178.237.33.50:80
http://geoplugin.net/json.gp
unknown
malicious
6276
backgroundTaskHost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D
unknown
whitelisted
4712
MoUsoCoreWorker.exe
GET
200
88.221.169.152:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
whitelisted
4712
MoUsoCoreWorker.exe
GET
200
2.16.164.106:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
whitelisted
1176
svchost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
whitelisted
7012
SIHClient.exe
GET
200
88.221.169.152:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl
unknown
whitelisted
7012
SIHClient.exe
GET
200
88.221.169.152:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
whitelisted
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D
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
3996
svchost.exe
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:137
whitelisted
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4712
MoUsoCoreWorker.exe
2.16.164.106:80
crl.microsoft.com
Akamai International B.V.
NL
whitelisted
4712
MoUsoCoreWorker.exe
88.221.169.152:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
4
System
192.168.100.255:138
whitelisted
5064
SearchApp.exe
2.23.209.149:443
www.bing.com
Akamai International B.V.
GB
whitelisted
192.229.221.95:80
ocsp.digicert.com
EDGECAST
US
whitelisted
1176
svchost.exe
20.190.159.71:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
1176
svchost.exe
192.229.221.95:80
ocsp.digicert.com
EDGECAST
US
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 40.127.240.158
  • 4.231.128.59
  • 51.124.78.146
  • 51.104.136.2
whitelisted
crl.microsoft.com
  • 2.16.164.106
  • 2.16.164.49
whitelisted
google.com
  • 142.250.185.206
whitelisted
www.microsoft.com
  • 88.221.169.152
whitelisted
www.bing.com
  • 2.23.209.149
  • 2.23.209.130
  • 2.23.209.133
  • 2.23.209.182
  • 2.23.209.187
  • 2.23.209.140
whitelisted
ocsp.digicert.com
  • 192.229.221.95
whitelisted
login.live.com
  • 20.190.159.71
  • 40.126.31.71
  • 20.190.159.0
  • 20.190.159.64
  • 40.126.31.69
  • 20.190.159.2
  • 20.190.159.4
  • 20.190.159.68
whitelisted
go.microsoft.com
  • 184.28.89.167
whitelisted
arc.msn.com
  • 20.223.35.26
whitelisted
fd.api.iris.microsoft.com
  • 20.223.35.26
whitelisted

Threats

PID
Process
Class
Message
A Network Trojan was detected
REMOTE [ANY.RUN] REMCOS TLS Connection JA3 Hash
Malware Command and Control Activity Detected
ET JA3 Hash - Remcos 3.x/4.x TLS Connection
1 ETPRO signatures available at the full report
No debug info