| File name: | svhost.exe |
| Full analysis: | https://app.any.run/tasks/906a7c04-e61f-41a5-b7fb-6c5781463f27 |
| 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: | December 22, 2023, 07:03:32 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | 0B6161BDA48E4129EBDFA4975526FC0D |
| SHA1: | 3331E1D541471E4E8D225481C1DF2F8C1A71F820 |
| SHA256: | DC340B465D749562DFA0B74E3D18277F022D3C35BEF917B9D50A66DFA6A5CB64 |
| SSDEEP: | 1536:cGkk9S9TAxioRMGogzb9NiMBTjnEMuVclN:jkk9S9TAlzzb9NxBlUY |
MALICIOUS
ASYNCRAT has been detected (YARA)
- svhost.exe (PID: 1432)
ASYNCRAT has been detected (SURICATA)
- svhost.exe (PID: 1432)
SUSPICIOUS
Reads settings of System Certificates
- svhost.exe (PID: 1432)
Reads the Internet Settings
- svhost.exe (PID: 1432)
Connects to unusual port
- svhost.exe (PID: 1432)
INFO
Checks supported languages
- svhost.exe (PID: 1432)
Process drops legitimate windows executable
- svhost.exe (PID: 1432)
Reads the computer name
- svhost.exe (PID: 1432)
Drops the executable file immediately after the start
- svhost.exe (PID: 1432)
Reads Environment values
- svhost.exe (PID: 1432)
Reads the machine GUID from the registry
- svhost.exe (PID: 1432)
Create files in a temporary directory
- svhost.exe (PID: 1432)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
AsyncRat
(PID) Process(1432) svhost.exe
BotnetDefault
Version1.0.7
Options
AutoRuntrue
MutexDcRatMutex_qwqdanchun
InstallFolder%Temp%
BSoDfalse
AntiVMfalse
Certificates
Cert1MIICMDCCAZmgAwIBAgIVANoU6b07slJvyzssq7+iH/K8iUpBMA0GCSqGSIb3DQEBDQUAMGQxFTATBgNVBAMMDERjUmF0IFNlcnZlcjETMBEGA1UECwwKcXdxZGFuY2h1bjEcMBoGA1UECgwTRGNSYXQgQnkgcXdxZGFuY2h1bjELMAkGA1UEBwwCU0gxCzAJBgNVBAYTAkNOMB4XDTIwMTIxNTEwMDUyOFoXDTMxMDkyNDEwMDUyOFowEDEOMAwGA1UEAwwFRGNSYXQwgZ8wDQYJKoZIhvcNAQEBBQADgY0A...
Server_SignatureMOpkfVhrWk22NUW2i83moT6c+3kAlT1xerrCQk++a3eDZDHvSM4CelJHiCNs6maSpEMDxnTF/JXnGDkXz1NbBDd+yNmA0UeCmGdb/dcGh4xct34sr2VxGP/A6BF7lV2AFz70HpYwPZRSQiSa5DDtgYzqz/QlDEPSS8ik/QwMJKk=
Keys
AES0101e9b4ef262432e4696b468370392da3d8b1d094c1f74c0286c965f48cc932
SaltDcRatByqwqdanchun
Credentials
Protocolpastebin
URLhttps://pastebin.com/raw/CP5zUzVw
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (56.7) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (21.3) |
| .scr | | | Windows screen saver (10.1) |
| .dll | | | Win32 Dynamic Link Library (generic) (5) |
| .exe | | | Win32 Executable (generic) (3.4) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2021:05:05 23:11:39+02:00 |
| ImageFileCharacteristics: | Executable |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 44544 |
| InitializedDataSize: | 4608 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xcbfe |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 6.2.19041.1 |
| ProductVersionNumber: | 6.2.19041.1 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | Microsoft Corporation |
| FileDescription: | Программа выхода из сеанса |
| FileVersion: | 6.2.19041.1 |
| InternalName: | logoff |
| LegalCopyright: | © Корпорация Майкрософт. Все права защищены. |
| LegalTrademarks: | - |
| OriginalFileName: | logoff |
| ProductName: | Операционная система Microsoft® Windows® |
| ProductVersion: | 6.2.19041.1 |
| AssemblyVersion: | 6.2.19041.1 |
Total processes
67
Monitored processes
1
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1432 | "C:\Users\admin\AppData\Local\Temp\svhost.exe" | C:\Users\admin\AppData\Local\Temp\svhost.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Программа выхода из сеанса Exit code: 1073807364 Version: 6.2.19041.1 Modules
AsyncRat(PID) Process(1432) svhost.exe BotnetDefault Version1.0.7 Options AutoRuntrue MutexDcRatMutex_qwqdanchun InstallFolder%Temp% BSoDfalse AntiVMfalse Certificates Cert1MIICMDCCAZmgAwIBAgIVANoU6b07slJvyzssq7+iH/K8iUpBMA0GCSqGSIb3DQEBDQUAMGQxFTATBgNVBAMMDERjUmF0IFNlcnZlcjETMBEGA1UECwwKcXdxZGFuY2h1bjEcMBoGA1UECgwTRGNSYXQgQnkgcXdxZGFuY2h1bjELMAkGA1UEBwwCU0gxCzAJBgNVBAYTAkNOMB4XDTIwMTIxNTEwMDUyOFoXDTMxMDkyNDEwMDUyOFowEDEOMAwGA1UEAwwFRGNSYXQwgZ8wDQYJKoZIhvcNAQEBBQADgY0A... Server_SignatureMOpkfVhrWk22NUW2i83moT6c+3kAlT1xerrCQk++a3eDZDHvSM4CelJHiCNs6maSpEMDxnTF/JXnGDkXz1NbBDd+yNmA0UeCmGdb/dcGh4xct34sr2VxGP/A6BF7lV2AFz70HpYwPZRSQiSa5DDtgYzqz/QlDEPSS8ik/QwMJKk= Keys AES0101e9b4ef262432e4696b468370392da3d8b1d094c1f74c0286c965f48cc932 SaltDcRatByqwqdanchun Credentials Protocolpastebin URLhttps://pastebin.com/raw/CP5zUzVw | |||||||||||||||
Total events
4 570
Read events
4 556
Write events
14
Delete events
0
Modification events
| (PID) Process: | (1432) svhost.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
Executable files
0
Suspicious files
4
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1432 | svhost.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506 | compressed | |
MD5:AC05D27423A85ADC1622C714F2CB6184 | SHA256:C6456E12E5E53287A547AF4103E0397CB9697E466CF75844312DC296D43D144D | |||
| 1432 | svhost.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506 | binary | |
MD5:B60259D1797765893FD1CD7B1102E06E | SHA256:8CDDACE1350D02D42D794B3D3AD97234BE8CC0CC92227DA829D87A7E2C1BE5F3 | |||
| 1432 | svhost.exe | C:\Users\admin\AppData\Local\Temp\Tar1F6B.tmp | binary | |
MD5:9C0C641C06238516F27941AA1166D427 | SHA256:4276AF3669A141A59388BC56A87F6614D9A9BDDDF560636C264219A7EB11256F | |||
| 1432 | svhost.exe | C:\Users\admin\AppData\Local\Temp\Cab1F6A.tmp | compressed | |
MD5:AC05D27423A85ADC1622C714F2CB6184 | SHA256:C6456E12E5E53287A547AF4103E0397CB9697E466CF75844312DC296D43D144D | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
10
DNS requests
3
Threats
4
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1432 | svhost.exe | GET | 200 | 93.184.221.240:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?67c7103e6bf462aa | unknown | compressed | 65.2 Kb | unknown |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
1080 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1432 | svhost.exe | 104.20.68.143:443 | pastebin.com | CLOUDFLARENET | — | unknown |
1432 | svhost.exe | 52.28.247.255:10676 | 6.tcp.eu.ngrok.io | AMAZON-02 | DE | unknown |
1432 | svhost.exe | 93.184.221.240:80 | ctldl.windowsupdate.com | EDGECAST | GB | whitelisted |
1452 | svchost.exe | 239.255.255.250:3702 | — | — | — | whitelisted |
1136 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
pastebin.com |
| shared |
6.tcp.eu.ngrok.io |
| malicious |
ctldl.windowsupdate.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1080 | svchost.exe | Misc activity | ET INFO DNS Query to a *.ngrok domain (ngrok.io) |
1432 | svhost.exe | Domain Observed Used for C2 Detected | REMOTE [ANY.RUN] AsyncRAT SSL certificate |
1432 | svhost.exe | Domain Observed Used for C2 Detected | ET MALWARE Observed Malicious SSL Cert (AsyncRAT) |
1432 | svhost.exe | Malware Command and Control Activity Detected | REMOTE [ANY.RUN] AsyncRAT Successful Connection |