| File name: | DocTromTinNhan.exe.zip |
| Full analysis: | https://app.any.run/tasks/d154a858-b179-4726-a37a-9f1f1d65dc28 |
| Verdict: | Malicious activity |
| Threats: | Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns. |
| Analysis date: | November 02, 2024, 06:00:44 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/zip |
| File info: | Zip archive data, at least v2.0 to extract, compression method=store |
| MD5: | CA9CB37063AB0B51927D78D95EB4DBFE |
| SHA1: | A3631232A2FBBA2F9D1DEFBA8633AC2FDD1A2131 |
| SHA256: | D8C67ECBA234BD465B39E14EF96982756DDFA5D6C98A98D5AF99BA34D687F6C1 |
| SSDEEP: | 98304:c6CRXYkcaCJr/VzkvddwCXkFqdz3aC3bww/Al+Biyz6oqV2kiDIA5jzqj9pDZfhW:Lx6mD5/TCT2q |
MALICIOUS
Generic archive extractor
- WinRAR.exe (PID: 1176)
Actions looks like stealing of personal data
- DocTromTinNhan.exe (PID: 5580)
- DocTromTinNhan.exe (PID: 948)
SUSPICIOUS
Reads security settings of Internet Explorer
- WinRAR.exe (PID: 1176)
Process drops python dynamic module
- DocTromTinNhan.exe (PID: 6688)
- DocTromTinNhan.exe (PID: 4312)
Executable content was dropped or overwritten
- DocTromTinNhan.exe (PID: 6688)
- DocTromTinNhan.exe (PID: 4312)
The process drops C-runtime libraries
- DocTromTinNhan.exe (PID: 6688)
- DocTromTinNhan.exe (PID: 4312)
Process drops legitimate windows executable
- DocTromTinNhan.exe (PID: 6688)
- DocTromTinNhan.exe (PID: 4312)
Application launched itself
- DocTromTinNhan.exe (PID: 6688)
- DocTromTinNhan.exe (PID: 4312)
Loads Python modules
- DocTromTinNhan.exe (PID: 5580)
- DocTromTinNhan.exe (PID: 948)
Process communicates with Telegram (possibly using it as an attacker's C2 server)
- DocTromTinNhan.exe (PID: 5580)
- DocTromTinNhan.exe (PID: 948)
INFO
Executable content was dropped or overwritten
- WinRAR.exe (PID: 1176)
The process uses the downloaded file
- WinRAR.exe (PID: 1176)
Reads the computer name
- DocTromTinNhan.exe (PID: 6688)
- DocTromTinNhan.exe (PID: 5580)
- DocTromTinNhan.exe (PID: 4312)
- DocTromTinNhan.exe (PID: 948)
Create files in a temporary directory
- DocTromTinNhan.exe (PID: 6688)
- DocTromTinNhan.exe (PID: 4312)
Checks supported languages
- DocTromTinNhan.exe (PID: 6688)
- DocTromTinNhan.exe (PID: 5580)
- DocTromTinNhan.exe (PID: 4312)
- DocTromTinNhan.exe (PID: 948)
Reads the machine GUID from the registry
- DocTromTinNhan.exe (PID: 5580)
- DocTromTinNhan.exe (PID: 948)
Attempting to use instant messaging service
- DocTromTinNhan.exe (PID: 5580)
- DocTromTinNhan.exe (PID: 948)
Checks proxy server information
- DocTromTinNhan.exe (PID: 5580)
- DocTromTinNhan.exe (PID: 948)
Manual execution by a user
- DocTromTinNhan.exe (PID: 4312)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .zip | | | ZIP compressed archive (100) |
|---|
EXIF
ZIP
| ZipRequiredVersion: | 20 |
|---|---|
| ZipBitFlag: | 0x0008 |
| ZipCompression: | None |
| ZipModifyDate: | 2024:09:18 14:43:24 |
| ZipCRC: | 0x30da4f3f |
| ZipCompressedSize: | 8631942 |
| ZipUncompressedSize: | 8631942 |
| ZipFileName: | DocTromTinNhan.exe |
Total processes
137
Monitored processes
5
Malicious processes
5
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 948 | "C:\Users\admin\Desktop\DocTromTinNhan.exe" | C:\Users\admin\Desktop\DocTromTinNhan.exe | DocTromTinNhan.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 1176 | "C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\AppData\Local\Temp\DocTromTinNhan.exe.zip | C:\Program Files\WinRAR\WinRAR.exe | explorer.exe | ||||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Exit code: 0 Version: 5.91.0 Modules
| |||||||||||||||
| 4312 | "C:\Users\admin\Desktop\DocTromTinNhan.exe" | C:\Users\admin\Desktop\DocTromTinNhan.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 5580 | "C:\Users\admin\AppData\Local\Temp\Rar$EXa1176.6780\DocTromTinNhan.exe" | C:\Users\admin\AppData\Local\Temp\Rar$EXa1176.6780\DocTromTinNhan.exe | DocTromTinNhan.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 6688 | "C:\Users\admin\AppData\Local\Temp\Rar$EXa1176.6780\DocTromTinNhan.exe" | C:\Users\admin\AppData\Local\Temp\Rar$EXa1176.6780\DocTromTinNhan.exe | WinRAR.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
Total events
2 432
Read events
2 416
Write events
16
Delete events
0
Modification events
| (PID) Process: | (1176) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 1 |
Value: C:\Users\admin\Desktop\GoogleChromeEnterpriseBundle64.zip | |||
| (PID) Process: | (1176) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\AppData\Local\Temp\DocTromTinNhan.exe.zip | |||
| (PID) Process: | (1176) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (1176) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (1176) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (1176) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (1176) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface\MainWin |
| Operation: | write | Name: | Placement |
Value: 2C0000000000000001000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF3D0000002D000000FD03000016020000 | |||
| (PID) Process: | (1176) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\ArcColumnWidths |
| Operation: | write | Name: | name |
Value: 256 | |||
| (PID) Process: | (1176) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\ArcColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (1176) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\ArcColumnWidths |
| Operation: | write | Name: | psize |
Value: 80 | |||
Executable files
128
Suspicious files
8
Text files
8
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 6688 | DocTromTinNhan.exe | C:\Users\admin\AppData\Local\Temp\_MEI66882\Crypto\Cipher\_Salsa20.pyd | executable | |
MD5:371776A7E26BAEB3F75C93A8364C9AE0 | SHA256:15257E96D1CA8480B8CB98F4C79B6E365FE38A1BA9638FC8C9AB7FFEA79C4762 | |||
| 6688 | DocTromTinNhan.exe | C:\Users\admin\AppData\Local\Temp\_MEI66882\Crypto\Cipher\_raw_des3.pyd | executable | |
MD5:6C3E976AB9F47825A5BD9F73E8DBA74E | SHA256:238CDB6B8FB611DB4626E6D202E125E2C174C8F73AE8A3273B45A0FC18DEA70C | |||
| 6688 | DocTromTinNhan.exe | C:\Users\admin\AppData\Local\Temp\_MEI66882\Crypto\Cipher\_raw_cast.pyd | executable | |
MD5:CF3C2F35C37AA066FA06113839C8A857 | SHA256:1261783F8881642C3466B96FA5879A492EA9E0DAB41284ED9E4A82E8BCF00C80 | |||
| 6688 | DocTromTinNhan.exe | C:\Users\admin\AppData\Local\Temp\_MEI66882\Crypto\Cipher\_pkcs1_decode.pyd | executable | |
MD5:D9E7218460AEE693BEA07DA7C2B40177 | SHA256:38E423D3BCC32EE6730941B19B7D5D8872C0D30D3DD8F9AAE1442CB052C599AD | |||
| 6688 | DocTromTinNhan.exe | C:\Users\admin\AppData\Local\Temp\_MEI66882\Crypto\Cipher\_raw_arc2.pyd | executable | |
MD5:D2175300E065347D13211F5BF7581602 | SHA256:94556934E3F9EE73C77552D2F3FC369C02D62A4C9E7143E472F8E3EE8C00AEE1 | |||
| 6688 | DocTromTinNhan.exe | C:\Users\admin\AppData\Local\Temp\_MEI66882\Crypto\Cipher\_raw_des.pyd | executable | |
MD5:0B538205388FDD99A043EE3AFAA074E4 | SHA256:C4769D3E6EB2A2FECB5DEC602D45D3E785C63BB96297268E3ED069CC4A019B1A | |||
| 6688 | DocTromTinNhan.exe | C:\Users\admin\AppData\Local\Temp\_MEI66882\Crypto\Cipher\_raw_cfb.pyd | executable | |
MD5:43BBE5D04460BD5847000804234321A6 | SHA256:FAA41385D0DB8D4EE2EE74EE540BC879CF2E884BEE87655FF3C89C8C517EED45 | |||
| 6688 | DocTromTinNhan.exe | C:\Users\admin\AppData\Local\Temp\_MEI66882\Crypto\Cipher\_raw_cbc.pyd | executable | |
MD5:20708935FDD89B3EDDEEA27D4D0EA52A | SHA256:11DD1B49F70DB23617E84E08E709D4A9C86759D911A24EBDDFB91C414CC7F375 | |||
| 6688 | DocTromTinNhan.exe | C:\Users\admin\AppData\Local\Temp\_MEI66882\Crypto\Cipher\_chacha20.pyd | executable | |
MD5:CB5238E2D4149636377F9A1E2AF6DC57 | SHA256:A8D3BB9CD6A78EBDB4F18693E68B659080D08CB537F9630D279EC9F26772EFC7 | |||
| 6688 | DocTromTinNhan.exe | C:\Users\admin\AppData\Local\Temp\_MEI66882\Crypto\Cipher\_raw_aes.pyd | executable | |
MD5:F751792DF10CDEED391D361E82DAF596 | SHA256:9524D1DADCD2F2B0190C1B8EDE8E5199706F3D6C19D3FB005809ED4FEBF3E8B5 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
6
TCP/UDP connections
33
DNS requests
18
Threats
3
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
6944 | svchost.exe | GET | 200 | 23.216.77.6:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
6944 | svchost.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
7028 | svchost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
6624 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
6624 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.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 |
|---|---|---|---|---|---|---|
6944 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
3524 | RUXIMICS.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
5488 | MoUsoCoreWorker.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4360 | SearchApp.exe | 104.126.37.130:443 | www.bing.com | Akamai International B.V. | DE | whitelisted |
— | — | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
6944 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6944 | svchost.exe | 23.216.77.6:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
6944 | svchost.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
www.bing.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
google.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
api.telegram.org |
| shared |
login.live.com |
| whitelisted |
th.bing.com |
| whitelisted |
go.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2172 | svchost.exe | Misc activity | ET HUNTING Telegram API Domain in DNS Lookup |
5580 | DocTromTinNhan.exe | Misc activity | ET HUNTING Observed Telegram API Domain (api .telegram .org in TLS SNI) |
948 | DocTromTinNhan.exe | Misc activity | ET HUNTING Observed Telegram API Domain (api .telegram .org in TLS SNI) |