| File name: | RV OFICIO Y DOCUMENTO DEL PROCESO - JUZGADO MUNICIPAL. (499 KB).msg |
| Full analysis: | https://app.any.run/tasks/bad6187f-9e91-48b7-8708-ce5df9beec8b |
| 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: | July 08, 2024, 19:44:02 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.ms-outlook |
| File info: | CDFV2 Microsoft Outlook Message |
| MD5: | 2F0B3F3C69F5656ECD1CE04BAA7152C2 |
| SHA1: | 359875F9A8A002BCAD70214F5E114DEA99E795A5 |
| SHA256: | 3BD65E9EFE2A6597A40693F04F39B7E8733BB6000B06BE3CB84CF48BA62F28C0 |
| SSDEEP: | 1536:XfHBikjs0UVu4s9efv+RPs2qruGgakUkjj27Mq:Xfh3jsXVu4pv+RU2qbvk7jy3 |
MALICIOUS
Changes the autorun value in the registry
- ACTA DEL PROCESO N° 225374198.exe (PID: 580)
- ACTA DEL PROCESO N° 225374198.exe (PID: 828)
Starts Visual C# compiler
- ACTA DEL PROCESO N° 225374198.exe (PID: 580)
- ACTA DEL PROCESO N° 225374198.exe (PID: 828)
ASYNCRAT has been detected (YARA)
- csc.exe (PID: 3380)
ASYNCRAT has been detected (SURICATA)
- csc.exe (PID: 3380)
SUSPICIOUS
Reads security settings of Internet Explorer
- WinRAR.exe (PID: 2400)
Connects to unusual port
- csc.exe (PID: 3380)
Reads settings of System Certificates
- csc.exe (PID: 3380)
Contacting a server suspected of hosting an CnC
- csc.exe (PID: 3380)
Reads the Internet Settings
- csc.exe (PID: 3380)
INFO
Manual execution by a user
- msedge.exe (PID: 3476)
Application launched itself
- msedge.exe (PID: 3476)
The process uses the downloaded file
- msedge.exe (PID: 2888)
- WinRAR.exe (PID: 2400)
Checks supported languages
- ACTA DEL PROCESO N° 225374198.exe (PID: 580)
- ACTA DEL PROCESO N° 225374198.exe (PID: 828)
- csc.exe (PID: 2440)
- csc.exe (PID: 3380)
Executable content was dropped or overwritten
- WinRAR.exe (PID: 2400)
Drops the executable file immediately after the start
- WinRAR.exe (PID: 2400)
Reads the computer name
- csc.exe (PID: 3380)
- csc.exe (PID: 2440)
Reads the machine GUID from the registry
- csc.exe (PID: 3380)
- csc.exe (PID: 2440)
Reads Environment values
- csc.exe (PID: 3380)
Reads the software policy settings
- csc.exe (PID: 3380)
Create files in a temporary directory
- csc.exe (PID: 3380)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
AsyncRat
(PID) Process(3380) csc.exe
C2 (1)linternadc24.duckdns.org
Ports (1)2222
Version1.0.7
Options
AutoRunfalse
Mutexwindowsnfdvfgdjsllcpqwaxvmnvgddwqgxz
InstallFolder%AppData%
Certificates
Cert1MIICMDCCAZmgAwIBAgIVALHnIPqvO0ejsIiXRAS4cjBZw0S5MA0GCSqGSIb3DQEBDQUAMGQxFTATBgNVBAMMDERjUmF0IFNlcnZlcjETMBEGA1UECwwKcXdxZGFuY2h1bjEcMBoGA1UECgwTRGNSYXQgQnkgcXdxZGFuY2h1bjELMAkGA1UEBwwCU0gxCzAJBgNVBAYTAkNOMB4XDTIyMTAxMzE2NDExOFoXDTMzMDcyMjE2NDExOFowEDEOMAwGA1UEAwwFRGNSYXQwgZ8wDQYJKoZIhvcNAQEBBQADgY0A...
Server_SignatureVWMC0k4EP6b4zVqcnAJfUEmfQ9ZEAS45MbYuSSgMP7GO1cc2o30nxMCz32O2DSNnSd38c+kgppZYY53H4zsb5d2ElsBgVEInCabSKWdZfeWx3RSxB5OK68mJAOB3UIyiYOfVhaaOLlwgQsY+SrXZixz/5K/6Z/k6uY2MMKoEKRw=
Keys
AES815e375312a3795bf4f91ec8c6d459b0cee270fa58d9ece27ca9b62dde22777d
SaltDcRatByqwqdanchun
TRiD
| .msg | | | Outlook Message (58.9) |
|---|---|---|
| .oft | | | Outlook Form Template (34.4) |
Total processes
65
Monitored processes
22
Malicious processes
4
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 312 | "C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=1668 --field-trial-handle=1364,i,16416124840895031011,15825386926900141582,131072 /prefetch:8 | C:\Program Files\Microsoft\Edge\Application\msedge.exe | — | msedge.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: LOW Description: Microsoft Edge Version: 109.0.1518.115 Modules
| |||||||||||||||
| 580 | "C:\Users\admin\AppData\Local\Temp\Rar$EXb2400.23053\ACTA DEL PROCESO N° 225374198.exe" | C:\Users\admin\AppData\Local\Temp\Rar$EXb2400.23053\ACTA DEL PROCESO N° 225374198.exe | WinRAR.exe | ||||||||||||
User: admin Company: Crystal Dew World Integrity Level: MEDIUM Description: CrystalDiskMark 8 Setup Exit code: 0 Version: 8.0.5 Modules
| |||||||||||||||
| 828 | "C:\Users\admin\AppData\Local\Temp\Rar$EXb2400.24657\ACTA DEL PROCESO N° 225374198.exe" | C:\Users\admin\AppData\Local\Temp\Rar$EXb2400.24657\ACTA DEL PROCESO N° 225374198.exe | WinRAR.exe | ||||||||||||
User: admin Company: Crystal Dew World Integrity Level: MEDIUM Description: CrystalDiskMark 8 Setup Exit code: 0 Version: 8.0.5 Modules
| |||||||||||||||
| 880 | "C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=renderer --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=3820 --field-trial-handle=1364,i,16416124840895031011,15825386926900141582,131072 /prefetch:1 | C:\Program Files\Microsoft\Edge\Application\msedge.exe | — | msedge.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: LOW Description: Microsoft Edge Version: 109.0.1518.115 Modules
| |||||||||||||||
| 1280 | "C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=renderer --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=12 --mojo-platform-channel-handle=4360 --field-trial-handle=1364,i,16416124840895031011,15825386926900141582,131072 /prefetch:1 | C:\Program Files\Microsoft\Edge\Application\msedge.exe | — | msedge.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: LOW Description: Microsoft Edge Version: 109.0.1518.115 Modules
| |||||||||||||||
| 1904 | "C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=renderer --instant-process --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2316 --field-trial-handle=1364,i,16416124840895031011,15825386926900141582,131072 /prefetch:1 | C:\Program Files\Microsoft\Edge\Application\msedge.exe | — | msedge.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: LOW Description: Microsoft Edge Version: 109.0.1518.115 Modules
| |||||||||||||||
| 2400 | "C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\Downloads\ACTA DEL PROCESO N° 225374198.UUE" | C:\Program Files\WinRAR\WinRAR.exe | msedge.exe | ||||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Version: 5.91.0 Modules
| |||||||||||||||
| 2440 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe | — | ACTA DEL PROCESO N° 225374198.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Visual C# Command Line Compiler Exit code: 0 Version: 4.8.3761.0 built by: NET48REL1 Modules
| |||||||||||||||
| 2496 | "C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1484 --field-trial-handle=1364,i,16416124840895031011,15825386926900141582,131072 /prefetch:3 | C:\Program Files\Microsoft\Edge\Application\msedge.exe | msedge.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Edge Version: 109.0.1518.115 Modules
| |||||||||||||||
| 2760 | "C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1236 --field-trial-handle=1364,i,16416124840895031011,15825386926900141582,131072 /prefetch:2 | C:\Program Files\Microsoft\Edge\Application\msedge.exe | — | msedge.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: LOW Description: Microsoft Edge Exit code: 0 Version: 109.0.1518.115 Modules
| |||||||||||||||
Total events
34 453
Read events
33 762
Write events
645
Delete events
46
Modification events
| (PID) Process: | (3384) OUTLOOK.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1033 |
Value: Off | |||
| (PID) Process: | (3384) OUTLOOK.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1041 |
Value: Off | |||
| (PID) Process: | (3384) OUTLOOK.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1046 |
Value: Off | |||
| (PID) Process: | (3384) OUTLOOK.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1036 |
Value: Off | |||
| (PID) Process: | (3384) OUTLOOK.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1031 |
Value: Off | |||
| (PID) Process: | (3384) OUTLOOK.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1040 |
Value: Off | |||
| (PID) Process: | (3384) OUTLOOK.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1049 |
Value: Off | |||
| (PID) Process: | (3384) OUTLOOK.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 3082 |
Value: Off | |||
| (PID) Process: | (3384) OUTLOOK.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1042 |
Value: Off | |||
| (PID) Process: | (3384) OUTLOOK.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1055 |
Value: Off | |||
Executable files
5
Suspicious files
426
Text files
81
Unknown types
3
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3384 | OUTLOOK.EXE | C:\Users\admin\AppData\Local\Temp\CVRE328.tmp.cvr | — | |
MD5:— | SHA256:— | |||
| 3384 | OUTLOOK.EXE | C:\Users\admin\Documents\Outlook Files\Outlook Data File - NoMail.pst | — | |
MD5:— | SHA256:— | |||
| 3476 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\EdgePushStorageWithConnectTokenAndKey\LOG.old~RF5b30b.TMP | — | |
MD5:— | SHA256:— | |||
| 3476 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\EdgePushStorageWithConnectTokenAndKey\LOG.old | — | |
MD5:— | SHA256:— | |||
| 3476 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\commerce_subscription_db\LOG.old~RF5b30b.TMP | — | |
MD5:— | SHA256:— | |||
| 3476 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\commerce_subscription_db\LOG.old | — | |
MD5:— | SHA256:— | |||
| 3476 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\EdgePushStorageWithConnectTokenAndKey\LOG.old~RF5b31b.TMP | — | |
MD5:— | SHA256:— | |||
| 3476 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\LOG.old~RF5b359.TMP | — | |
MD5:— | SHA256:— | |||
| 3476 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\LOG.old | — | |
MD5:— | SHA256:— | |||
| 3384 | OUTLOOK.EXE | C:\Users\admin\AppData\Local\Microsoft\Outlook\mapisvc.inf | text | |
MD5:F3B25701FE362EC84616A93A45CE9998 | SHA256:B3D510EF04275CA8E698E5B3CBB0ECE3949EF9252F0CDC839E9EE347409A2209 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
49
DNS requests
71
Threats
5
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3380 | csc.exe | GET | 200 | 88.221.110.106:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?02b2439b58166243 | unknown | — | — | unknown |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
1372 | svchost.exe | 51.124.78.146:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
1060 | svchost.exe | 224.0.0.252:5355 | — | — | — | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
2564 | svchost.exe | 239.255.255.250:3702 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
3384 | OUTLOOK.EXE | 64.4.26.155:80 | config.messenger.msn.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
1372 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
3476 | msedge.exe | 239.255.255.250:1900 | — | — | — | whitelisted |
2496 | msedge.exe | 204.79.197.203:443 | ntp.msn.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
2496 | msedge.exe | 13.107.21.239:443 | edge.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
config.messenger.msn.com |
| whitelisted |
dns.msftncsi.com |
| shared |
settings-win.data.microsoft.com |
| whitelisted |
ntp.msn.com |
| whitelisted |
edge.microsoft.com |
| whitelisted |
config.edge.skype.com |
| whitelisted |
assets.msn.com |
| whitelisted |
img-s-msn-com.akamaized.net |
| whitelisted |
sb.scorecardresearch.com |
| shared |
th.bing.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1060 | svchost.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
1060 | svchost.exe | Potentially Bad Traffic | ET INFO DYNAMIC_DNS Query to a *.duckdns .org Domain |
3380 | csc.exe | Domain Observed Used for C2 Detected | REMOTE [ANY.RUN] AsyncRAT SSL certificate |
3380 | csc.exe | Domain Observed Used for C2 Detected | ET MALWARE Observed Malicious SSL Cert (AsyncRAT) |
3380 | csc.exe | Malware Command and Control Activity Detected | REMOTE [ANY.RUN] AsyncRAT Successful Connection |