File name:

rwvg1.exe

Full analysis: https://app.any.run/tasks/4d012317-b78a-4089-8fb0-889acb65e277
Verdict: Malicious activity
Threats:

AsyncRAT is a RAT that can monitor and remotely control infected systems. This malware was introduced on Github as a legitimate open-source remote administration software, but hackers use it for its many powerful malicious functions.

Analysis date: January 02, 2025, 18:13:29
OS: Windows 10 Professional (build: 19045, 64 bit)
Tags:
loader
rat
asyncrat
remote
ims-api
generic
stormkitty
discordgrabber
stealer
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections
MD5:

671A477D299131351498B10922FA09D8

SHA1:

1EA4A3836B473BC710F348FADE6BB56848279649

SHA256:

2B07A75B74B701D95F6957416959DF359F441E7455E933913208891F05C6C9E5

SSDEEP:

768:uc7AV7a1UqeBVYbCU/SReKbLZu7RupMx0AzgL4Vo2T9L:9o7eULG2U0XA0AzC4SQL

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

    • Starts Visual C# compiler

      • rwvg1.exe (PID: 6364)
    • ASYNCRAT has been detected (SURICATA)

      • RegAsm.exe (PID: 6768)
    • DISCORDGRABBER has been detected (YARA)

      • RegAsm.exe (PID: 6768)
    • STORMKITTY has been detected (YARA)

      • RegAsm.exe (PID: 6768)
    • ASYNCRAT has been detected (YARA)

      • RegAsm.exe (PID: 6768)
  • SUSPICIOUS

    • Uses .NET C# to load dll

      • rwvg1.exe (PID: 6364)
    • Executable content was dropped or overwritten

      • csc.exe (PID: 6512)
    • Potential Corporate Privacy Violation

      • rwvg1.exe (PID: 6364)
    • Contacting a server suspected of hosting an CnC

      • RegAsm.exe (PID: 6768)
    • Connects to unusual port

      • RegAsm.exe (PID: 6768)
    • Searches for installed software

      • RegAsm.exe (PID: 6768)
    • Possible usage of Discord/Telegram API has been detected (YARA)

      • RegAsm.exe (PID: 6768)
  • INFO

    • Reads the machine GUID from the registry

      • rwvg1.exe (PID: 6364)
      • csc.exe (PID: 6512)
      • RegAsm.exe (PID: 6768)
    • Reads the computer name

      • rwvg1.exe (PID: 6364)
      • RegAsm.exe (PID: 6768)
    • Checks supported languages

      • rwvg1.exe (PID: 6364)
      • csc.exe (PID: 6512)
      • cvtres.exe (PID: 6572)
      • RegAsm.exe (PID: 6768)
    • Create files in a temporary directory

      • rwvg1.exe (PID: 6364)
      • cvtres.exe (PID: 6572)
      • csc.exe (PID: 6512)
    • Disables trace logs

      • rwvg1.exe (PID: 6364)
    • Checks proxy server information

      • rwvg1.exe (PID: 6364)
    • Reads the software policy settings

      • RegAsm.exe (PID: 6768)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

ims-api

(PID) Process(6768) RegAsm.exe
Discord-Webhook-Tokens (1)1016614786533969920/fMJOOjA1pZqjV8_s0JC86KN9Fa0FeGPEHaEak8WTADC18s5Xnk3vl2YBdVD37L0qTWnM
Discord-Info-Links
1016614786533969920/fMJOOjA1pZqjV8_s0JC86KN9Fa0FeGPEHaEak8WTADC18s5Xnk3vl2YBdVD37L0qTWnM
Get Webhook Infohttps://discord.com/api/webhooks/1016614786533969920/fMJOOjA1pZqjV8_s0JC86KN9Fa0FeGPEHaEak8WTADC18s5Xnk3vl2YBdVD37L0qTWnM

StormKitty

(PID) Process(6768) RegAsm.exe
C2 (1)157.20.182.177
Ports (1)4449
VersionRAT + hVNC 6.0.5
Options
AutoRunfalse
Mutexrbdebzqnfarpyomol
InstallFolder%PreLoadSQLite_TargetFramework%
Certificates
Cert1MIICLjCCAZegAwIBAgIVAPMNUbaXLLtiHcN1m+dlPpK7vns9MA0GCSqGSIb3DQEBDQUAMGIxFTATBgNVBAMMDFZlbm9tIFNlcnZlcjESMBAGA1UECwwJYWxleGVpa3VuMRswGQYDVQQKDBJWZW5vbSBCeSBhbGV4ZWlrdW4xCzAJBgNVBAcMAlNIMQswCQYDVQQGEwJDTjAeFw0yNDAzMTgxNjQ3MjZaFw0zNDEyMjYxNjQ3MjZaMBAxDjAMBgNVBAMMBVZlbm9tMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCB...
Server_SignatureQ+AFJAFiCL8OIXnK8vpppK2iElr5z1WborIl7rv6KiQoJrBbUTm5VXnSYAmidoRGFDhbPZQNsmEzkAX+OxkvuApCdcHhIykks+QzQbWVaQ2kFUGLle9WnlLZKzmw4R0L8hrBDa6GtG0avdXbvgSOzH5rALYyXUgmgBPNJoJdbSM=
Keys
AES339d9161fddfb4de89fde2fc578381219228435482deb7449327dc9c590feb66
SaltVenomRATByVenom
No Malware configuration.

TRiD

.exe | Generic CIL Executable (.NET, Mono, etc.) (82.9)
.dll | Win32 Dynamic Link Library (generic) (7.4)
.exe | Win32 Executable (generic) (5.1)
.exe | Generic Win/DOS Executable (2.2)
.exe | DOS Executable Generic (2.2)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2042:05:02 12:18:41+00:00
ImageFileCharacteristics: Executable, Large address aware
PEType: PE32
LinkerVersion: 48
CodeSize: 32768
InitializedDataSize: 2048
UninitializedDataSize: -
EntryPoint: 0x9f7a
OSVersion: 4
ImageVersion: -
SubsystemVersion: 6
Subsystem: Windows GUI
FileVersionNumber: 7.8.3.9
ProductVersionNumber: 7.8.3.9
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Neutral
CharacterSet: Unicode
Comments: Mercado
CompanyName: Mercado
FileDescription: Mercado
FileVersion: 7.8.3.9
InternalName: Mercado.exe
LegalCopyright: Copyright © Mercado 2024
LegalTrademarks: Mercado
OriginalFileName: Mercado.exe
ProductName: Mercado
ProductVersion: 7.8.3.9
AssemblyVersion: 7.8.3.9
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
132
Monitored processes
5
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start rwvg1.exe csc.exe conhost.exe no specs cvtres.exe no specs #ASYNCRAT regasm.exe

Process information

PID
CMD
Path
Indicators
Parent process
6364"C:\Users\admin\AppData\Local\Temp\rwvg1.exe" C:\Users\admin\AppData\Local\Temp\rwvg1.exe
explorer.exe
User:
admin
Company:
Mercado
Integrity Level:
MEDIUM
Description:
Mercado
Exit code:
0
Version:
7.8.3.9
Modules
Images
c:\users\admin\appdata\local\temp\rwvg1.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
6512"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\admin\AppData\Local\Temp\k5whoah4.cmdline"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
rwvg1.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Visual C# Command Line Compiler
Exit code:
0
Version:
4.8.9037.0 built by: NET481REL1
Modules
Images
c:\windows\microsoft.net\framework\v4.0.30319\csc.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\apphelp.dll
c:\windows\syswow64\advapi32.dll
6520\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.execsc.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
Images
c:\windows\system32\conhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\shcore.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
6572C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RES5B52.tmp" "c:\Users\admin\AppData\Local\Temp\CSCAB6D30675AF34519ABE334F62D9BB071.TMP"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.execsc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft® Resource File To COFF Object Conversion Utility
Exit code:
0
Version:
14.32.31326.0
Modules
Images
c:\windows\microsoft.net\framework\v4.0.30319\cvtres.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\apphelp.dll
c:\windows\syswow64\advapi32.dll
6768"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
rwvg1.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft .NET Assembly Registration Utility
Version:
4.8.9037.0 built by: NET481REL1
Modules
Images
c:\windows\microsoft.net\framework\v4.0.30319\regasm.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
ims-api
(PID) Process(6768) RegAsm.exe
Discord-Webhook-Tokens (1)1016614786533969920/fMJOOjA1pZqjV8_s0JC86KN9Fa0FeGPEHaEak8WTADC18s5Xnk3vl2YBdVD37L0qTWnM
Discord-Info-Links
1016614786533969920/fMJOOjA1pZqjV8_s0JC86KN9Fa0FeGPEHaEak8WTADC18s5Xnk3vl2YBdVD37L0qTWnM
Get Webhook Infohttps://discord.com/api/webhooks/1016614786533969920/fMJOOjA1pZqjV8_s0JC86KN9Fa0FeGPEHaEak8WTADC18s5Xnk3vl2YBdVD37L0qTWnM
StormKitty
(PID) Process(6768) RegAsm.exe
C2 (1)157.20.182.177
Ports (1)4449
VersionRAT + hVNC 6.0.5
Options
AutoRunfalse
Mutexrbdebzqnfarpyomol
InstallFolder%PreLoadSQLite_TargetFramework%
Certificates
Cert1MIICLjCCAZegAwIBAgIVAPMNUbaXLLtiHcN1m+dlPpK7vns9MA0GCSqGSIb3DQEBDQUAMGIxFTATBgNVBAMMDFZlbm9tIFNlcnZlcjESMBAGA1UECwwJYWxleGVpa3VuMRswGQYDVQQKDBJWZW5vbSBCeSBhbGV4ZWlrdW4xCzAJBgNVBAcMAlNIMQswCQYDVQQGEwJDTjAeFw0yNDAzMTgxNjQ3MjZaFw0zNDEyMjYxNjQ3MjZaMBAxDjAMBgNVBAMMBVZlbm9tMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCB...
Server_SignatureQ+AFJAFiCL8OIXnK8vpppK2iElr5z1WborIl7rv6KiQoJrBbUTm5VXnSYAmidoRGFDhbPZQNsmEzkAX+OxkvuApCdcHhIykks+QzQbWVaQ2kFUGLle9WnlLZKzmw4R0L8hrBDa6GtG0avdXbvgSOzH5rALYyXUgmgBPNJoJdbSM=
Keys
AES339d9161fddfb4de89fde2fc578381219228435482deb7449327dc9c590feb66
SaltVenomRATByVenom
Total events
4 330
Read events
4 316
Write events
14
Delete events
0

Modification events

(PID) Process:(6364) rwvg1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\rwvg1_RASAPI32
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(6364) rwvg1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\rwvg1_RASAPI32
Operation:writeName:EnableAutoFileTracing
Value:
0
(PID) Process:(6364) rwvg1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\rwvg1_RASAPI32
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(6364) rwvg1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\rwvg1_RASAPI32
Operation:writeName:FileTracingMask
Value:
(PID) Process:(6364) rwvg1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\rwvg1_RASAPI32
Operation:writeName:ConsoleTracingMask
Value:
(PID) Process:(6364) rwvg1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\rwvg1_RASAPI32
Operation:writeName:MaxFileSize
Value:
1048576
(PID) Process:(6364) rwvg1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\rwvg1_RASAPI32
Operation:writeName:FileDirectory
Value:
%windir%\tracing
(PID) Process:(6364) rwvg1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\rwvg1_RASMANCS
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(6364) rwvg1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\rwvg1_RASMANCS
Operation:writeName:EnableAutoFileTracing
Value:
0
(PID) Process:(6364) rwvg1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\rwvg1_RASMANCS
Operation:writeName:EnableConsoleTracing
Value:
0
Executable files
1
Suspicious files
2
Text files
3
Unknown types
0

Dropped files

PID
Process
Filename
Type
6364rwvg1.exeC:\Users\admin\AppData\Local\Temp\k5whoah4.0.cstext
MD5:3FA79DECFF8805745CEA8116D9BB2643
SHA256:E6852A401B53A7AF04D57AA1E4FC9621E3DFFC1221534142316A27AE67E8F89C
6364rwvg1.exeC:\Users\admin\AppData\Local\Temp\k5whoah4.cmdlinetext
MD5:62B348FF8394F807F651F8CA5D8564CE
SHA256:8B8D7069E53953C3CF9A28C861B827636DF27EA3BD3C7963C30848259426B901
6572cvtres.exeC:\Users\admin\AppData\Local\Temp\RES5B52.tmpbinary
MD5:6A5E4D5A99A95B1D27E34AB2D76E5A94
SHA256:D542210786BE920BB55DE546E4B7B4721FFA5876FFEF754FC6A63959EE4A191C
6512csc.exeC:\Users\admin\AppData\Local\Temp\k5whoah4.dllexecutable
MD5:4618014C07C58E9DCDCDFEF4E3CCA8EC
SHA256:D97642EFF7486A70281D097562DEE624B5A1B2449285156ECD51F423A3E3CB0F
6512csc.exeC:\Users\admin\AppData\Local\Temp\k5whoah4.outtext
MD5:D1D1BE72A473EFE5A3529ADDF08F73C9
SHA256:6CEAC2B1B2DF27AD2A7EA49C33682A20C336F667FEB08D703928AD6FA895618B
6512csc.exeC:\Users\admin\AppData\Local\Temp\CSCAB6D30675AF34519ABE334F62D9BB071.TMPbinary
MD5:219BA9924E1B4F234BB0BCC10B6F2B39
SHA256:3CB4EA23BC4C9081E8C6F68AED9A9229F1A439E5B1A5CF90F8A1C4E3D7B5BFCA
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
8
TCP/UDP connections
37
DNS requests
20
Threats
9

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
GET
200
23.48.23.140:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
whitelisted
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D
unknown
whitelisted
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
whitelisted
6364
rwvg1.exe
GET
200
147.45.44.131:80
http://147.45.44.131/infopage/ersyb.exe
unknown
malicious
1176
svchost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
whitelisted
1944
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
1944
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
6436
backgroundTaskHost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%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
4712
MoUsoCoreWorker.exe
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
192.168.100.255:137
unknown
4536
svchost.exe
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
5064
SearchApp.exe
92.123.104.28:443
www.bing.com
Akamai International B.V.
DE
whitelisted
23.48.23.140:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
192.229.221.95:80
ocsp.digicert.com
EDGECAST
US
whitelisted
23.35.229.160:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
4
System
192.168.100.255:138
whitelisted
6364
rwvg1.exe
147.45.44.131:80
OOO FREEnet Group
RU
malicious

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 40.127.240.158
  • 51.124.78.146
  • 20.73.194.208
whitelisted
google.com
  • 142.250.185.142
whitelisted
www.bing.com
  • 92.123.104.28
  • 92.123.104.62
  • 92.123.104.33
  • 92.123.104.38
  • 92.123.104.32
whitelisted
crl.microsoft.com
  • 23.48.23.140
  • 23.48.23.190
  • 23.48.23.162
  • 23.48.23.150
  • 23.48.23.183
  • 23.48.23.194
  • 23.48.23.147
  • 23.48.23.143
  • 23.48.23.180
whitelisted
ocsp.digicert.com
  • 192.229.221.95
whitelisted
www.microsoft.com
  • 23.35.229.160
  • 88.221.169.152
whitelisted
login.live.com
  • 40.126.32.74
  • 40.126.32.138
  • 40.126.32.133
  • 40.126.32.68
  • 40.126.32.134
  • 20.190.160.20
  • 40.126.32.136
  • 40.126.32.140
whitelisted
go.microsoft.com
  • 23.35.238.131
whitelisted
arc.msn.com
  • 20.103.156.88
whitelisted
fd.api.iris.microsoft.com
  • 20.223.35.26
whitelisted

Threats

PID
Process
Class
Message
6364
rwvg1.exe
Potentially Bad Traffic
ET INFO Executable Download from dotted-quad Host
6364
rwvg1.exe
Misc Attack
ET DROP Spamhaus DROP Listed Traffic Inbound group 23
6364
rwvg1.exe
Potential Corporate Privacy Violation
ET POLICY PE EXE or DLL Windows file download HTTP
6364
rwvg1.exe
Potentially Bad Traffic
ET HUNTING SUSPICIOUS Dotted Quad Host MZ Response
6364
rwvg1.exe
Potentially Bad Traffic
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
6768
RegAsm.exe
Domain Observed Used for C2 Detected
REMOTE [ANY.RUN] Possible AsyncRAT SSL Certificate
3 ETPRO signatures available at the full report
No debug info