| File name: | Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N |
| Full analysis: | https://app.any.run/tasks/f1651f97-7b21-4b5d-9a8b-85a7ee855f0f |
| 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 17, 2024, 08:57:11 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | 22CE3D0FC9F92829BE87F978FC573680 |
| SHA1: | 2A55144AED0886304B490FBCC623BE46A8871065 |
| SHA256: | 8741E2FC5B709526EAEC1E791C56C7D2C65F312940B81E6027BD6EE2B181D940 |
| SSDEEP: | 12288:j1eur+yiTgkF444VAw7ge/Q4fR4kunYcWGcK4oZ+VpWVVVVVVVVVVVVVVVVVBL:drdQ0BunO1oZwpK |
MALICIOUS
REMCOS has been detected
- Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe (PID: 780)
- COM Surrogate.exe (PID: 3184)
- iexplore.exe (PID: 3852)
- iexplore.exe (PID: 3852)
- svchost.exe (PID: 4876)
- COM Surrogate.exe (PID: 3184)
Changes the autorun value in the registry
- Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe (PID: 780)
- COM Surrogate.exe (PID: 3184)
Uses sleep, probably for evasion detection (SCRIPT)
- wscript.exe (PID: 4680)
Deletes a file (SCRIPT)
- wscript.exe (PID: 4680)
REMCOS has been detected (SURICATA)
- iexplore.exe (PID: 3852)
REMCOS has been detected (YARA)
- svchost.exe (PID: 4876)
SUSPICIOUS
Executable content was dropped or overwritten
- Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe (PID: 780)
Creates FileSystem object to access computer's file system (SCRIPT)
- wscript.exe (PID: 4680)
Gets full path of the running script (SCRIPT)
- wscript.exe (PID: 4680)
Starts CMD.EXE for commands execution
- wscript.exe (PID: 4680)
Runs shell command (SCRIPT)
- wscript.exe (PID: 4680)
Contacting a server suspected of hosting an CnC
- iexplore.exe (PID: 3852)
Reads security settings of Internet Explorer
- Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe (PID: 780)
The process executes VB scripts
- Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe (PID: 780)
INFO
Creates files in the program directory
- Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe (PID: 780)
- iexplore.exe (PID: 3852)
Checks supported languages
- Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe (PID: 780)
- COM Surrogate.exe (PID: 3184)
The process uses the downloaded file
- wscript.exe (PID: 4680)
- Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe (PID: 780)
Connects to unusual port
- iexplore.exe (PID: 3852)
Create files in a temporary directory
- Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe (PID: 780)
Reads the computer name
- Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe (PID: 780)
Process checks computer location settings
- Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe (PID: 780)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (64.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (15.4) |
| .exe | | | Win32 Executable (generic) (10.5) |
| .exe | | | Generic Win/DOS Executable (4.6) |
| .exe | | | DOS Executable Generic (4.6) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2022:08:20 16:47:03+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 14 |
| CodeSize: | 345088 |
| InitializedDataSize: | 134656 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x327a4 |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
Total processes
127
Monitored processes
8
Malicious processes
6
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 780 | "C:\Users\admin\Desktop\Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe" | C:\Users\admin\Desktop\Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 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
| |||||||||||||||
| 3184 | "C:\ProgramData\COM Surrogate\COM Surrogate.exe" | C:\ProgramData\COM Surrogate\COM Surrogate.exe | cmd.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 3 Modules
| |||||||||||||||
| 3852 | "c:\program files (x86)\internet explorer\iexplore.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | COM Surrogate.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Internet Explorer Version: 11.00.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4680 | "C:\WINDOWS\System32\WScript.exe" "C:\Users\admin\AppData\Local\Temp\install.vbs" | C:\Windows\SysWOW64\wscript.exe | — | Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft ® Windows Based Script Host Exit code: 0 Version: 5.812.10240.16384 Modules
| |||||||||||||||
| 4876 | svchost.exe | C:\Windows\SysWOW64\svchost.exe | iexplore.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Host Process for Windows Services Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5264 | \??\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
| |||||||||||||||
| 5276 | "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\COM Surrogate\COM Surrogate.exe" | C:\Windows\SysWOW64\cmd.exe | — | wscript.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 3 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
1 811
Read events
1 652
Write events
157
Delete events
2
Modification events
| (PID) Process: | (780) Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | COM Surrogate |
Value: "C:\ProgramData\COM Surrogate\COM Surrogate.exe" | |||
| (PID) Process: | (780) Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | COM Surrogate |
Value: "C:\ProgramData\COM Surrogate\COM Surrogate.exe" | |||
| (PID) Process: | (780) Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.vbs\OpenWithProgids |
| Operation: | write | Name: | VBSFile |
Value: | |||
| (PID) Process: | (3184) COM Surrogate.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | COM Surrogate |
Value: "C:\ProgramData\COM Surrogate\COM Surrogate.exe" | |||
| (PID) Process: | (3184) COM Surrogate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | COM Surrogate |
Value: "C:\ProgramData\COM Surrogate\COM Surrogate.exe" | |||
| (PID) Process: | (3184) COM Surrogate.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-C5SENV |
| Operation: | write | Name: | exepath |
Value: 569FB04DFC7F26A6D0A38832C33CB50A1D404955C595EF3537A878F1D531C93C7B5E8CD5D14B63C13ED5484BAF09001C47E8B220EB7DF90186E8191C7C1CF30A5CA7D17D1BD1E7FA369BE65EC85BF78BF76079C20B8B45300C26720A0098 | |||
| (PID) Process: | (3184) COM Surrogate.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-C5SENV |
| Operation: | write | Name: | Inj |
Value: 1 | |||
| (PID) Process: | (3852) iexplore.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-C5SENV |
| Operation: | delete value | Name: | Inj |
Value: | |||
| (PID) Process: | (3852) iexplore.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-C5SENV |
| Operation: | write | Name: | licence |
Value: 58E7C2A1336E4F2E4E710250E77BD4D4 | |||
| (PID) Process: | (3852) iexplore.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-C5SENV |
| Operation: | write | Name: | WD |
Value: 3852 | |||
Executable files
1
Suspicious files
2
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 780 | Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe | C:\ProgramData\COM Surrogate\COM Surrogate.exe | executable | |
MD5:22CE3D0FC9F92829BE87F978FC573680 | SHA256:8741E2FC5B709526EAEC1E791C56C7D2C65F312940B81E6027BD6EE2B181D940 | |||
| 780 | Trojan.Win32.Remcos.pz8741e2fc5b709526eaec1e791c56c7d2c65f312940b81e6027bd6ee2b181d940N.exe | C:\Users\admin\AppData\Local\Temp\install.vbs | binary | |
MD5:01EA74DAF9B956185C45016B68449BB0 | SHA256:1B22904A4106604DA03FD63FAD1663A3562F928FBE6BFC90AF4B8239142E83DA | |||
| 3852 | iexplore.exe | C:\ProgramData\Windows\logs.dat | binary | |
MD5:16E4D760FF11D19C974D5CE89D8300C3 | SHA256:B3C8776FF764EB75B3C17157A82D9BBA6FC4E15B8D53B405AB28B22C40803074 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
3
TCP/UDP connections
21
DNS requests
5
Threats
8
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
6652 | svchost.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
2040 | RUXIMICS.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
2120 | MoUsoCoreWorker.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.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 |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
2040 | RUXIMICS.exe | 20.73.194.208:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
2120 | MoUsoCoreWorker.exe | 20.73.194.208:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6652 | svchost.exe | 20.73.194.208:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
3852 | iexplore.exe | 147.185.221.22:43206 | stay-daughters.gl.at.ply.gg | PLAYIT-GG | US | malicious |
6652 | svchost.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
2040 | RUXIMICS.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
2120 | MoUsoCoreWorker.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
6652 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
2120 | MoUsoCoreWorker.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
google.com |
| whitelisted |
stay-daughters.gl.at.ply.gg |
| malicious |
www.microsoft.com |
| whitelisted |
settings-win.data.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2256 | svchost.exe | Potentially Bad Traffic | ET INFO playit .gg Tunneling Domain in DNS Lookup |
2256 | svchost.exe | Misc activity | ET INFO Tunneling Service in DNS Lookup (* .ply .gg) |
3852 | iexplore.exe | A Network Trojan was detected | REMOTE [ANY.RUN] REMCOS TLS Connection JA3 Hash |
3852 | iexplore.exe | Malware Command and Control Activity Detected | ET JA3 Hash - Remcos 3.x/4.x TLS Connection |
3852 | iexplore.exe | A Network Trojan was detected | REMOTE [ANY.RUN] REMCOS TLS Connection JA3 Hash |
3852 | iexplore.exe | Malware Command and Control Activity Detected | ET JA3 Hash - Remcos 3.x/4.x TLS Connection |
3852 | iexplore.exe | A Network Trojan was detected | REMOTE [ANY.RUN] REMCOS TLS Connection JA3 Hash |
3852 | iexplore.exe | Malware Command and Control Activity Detected | ET JA3 Hash - Remcos 3.x/4.x TLS Connection |