| File name: | romboso.zip |
| Full analysis: | https://app.any.run/tasks/2b2f947d-d554-46f6-a933-9f258662f970 |
| Verdict: | Malicious activity |
| Threats: | A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection. |
| Analysis date: | January 21, 2025, 01:46:21 |
| 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=deflate |
| MD5: | D2378653B17A760C364884B81DEAB17E |
| SHA1: | EAF3E5A4EB78CB26F83364B59365C891D15612DC |
| SHA256: | F0F0F079B089ADF34A85812C94A9DCAA38724D356A9141D32DDC8FACB0D4AC70 |
| SSDEEP: | 6144:5NiuJEPtqUbCcn39CW65yL3v9IQFzd7Opb9pjnVW67cAHWy:5AGqt5bCc39f6Y7v9IQlNOpb7B7LHWy |
MALICIOUS
LUMMA mutex has been found
- kutikolo.exe (PID: 5256)
Steals credentials from Web Browsers
- kutikolo.exe (PID: 5256)
Actions looks like stealing of personal data
- kutikolo.exe (PID: 5256)
SUSPICIOUS
Detects reflection assembly loader (YARA)
- powershell.exe (PID: 5096)
Searches for installed software
- kutikolo.exe (PID: 5256)
INFO
Executable content was dropped or overwritten
- WinRAR.exe (PID: 5444)
Checks supported languages
- SearchApp.exe (PID: 5064)
Manual execution by a user
- powershell.exe (PID: 5096)
- powershell.exe (PID: 7052)
- kutikolo.exe (PID: 5256)
The process uses the downloaded file
- powershell.exe (PID: 5096)
- WinRAR.exe (PID: 5444)
- powershell.exe (PID: 7052)
Process checks computer location settings
- SearchApp.exe (PID: 5064)
Checks current location (POWERSHELL)
- powershell.exe (PID: 5096)
- powershell.exe (PID: 7052)
Reads the machine GUID from the registry
- SearchApp.exe (PID: 5064)
Script raised an exception (POWERSHELL)
- powershell.exe (PID: 5096)
Reads the software policy settings
- SearchApp.exe (PID: 5064)
- kutikolo.exe (PID: 5256)
Reads the computer name
- kutikolo.exe (PID: 5256)
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: | - |
| ZipCompression: | Deflated |
| ZipModifyDate: | 2025:01:18 22:11:14 |
| ZipCRC: | 0xcdb7d97e |
| ZipCompressedSize: | 9321 |
| ZipUncompressedSize: | 20992 |
| ZipFileName: | kutikolo.exe |
Total processes
138
Monitored processes
9
Malicious processes
1
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1616 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | powershell.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
| |||||||||||||||
| 2192 | 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
| |||||||||||||||
| 2436 | C:\WINDOWS\System32\rundll32.exe C:\WINDOWS\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding | C:\Windows\System32\rundll32.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5064 | "C:\WINDOWS\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca | C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: LOW Description: Search application Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5096 | "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows PowerShell Exit code: 3221225786 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5256 | "C:\Users\admin\Desktop\romboso\kutikolo.exe" | C:\Users\admin\Desktop\romboso\kutikolo.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 5444 | "C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\Desktop\romboso.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
| |||||||||||||||
| 7052 | "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows PowerShell Exit code: 3221225786 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7056 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | powershell.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
20 235
Read events
20 071
Write events
148
Delete events
16
Modification events
| (PID) Process: | (5444) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 3 |
Value: C:\Users\admin\Desktop\preferences.zip | |||
| (PID) Process: | (5444) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 2 |
Value: C:\Users\admin\Desktop\chromium_ext.zip | |||
| (PID) Process: | (5444) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 1 |
Value: C:\Users\admin\Desktop\omni_23_10_2024_.zip | |||
| (PID) Process: | (5444) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\Desktop\romboso.zip | |||
| (PID) Process: | (5444) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (5444) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (5444) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (5444) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (5064) SearchApp.exe | Key: | \REGISTRY\A\{ee080948-b2ea-145a-6870-f9164b908eb9}\LocalState\ConstraintIndex |
| Operation: | write | Name: | CurrentConstraintIndexCabPath |
Value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| |||
| (PID) Process: | (5064) SearchApp.exe | Key: | \REGISTRY\A\{ee080948-b2ea-145a-6870-f9164b908eb9}\LocalState\AppsConstraintIndex |
| Operation: | write | Name: | LatestConstraintIndexFolder |
Value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| |||
Executable files
2
Suspicious files
59
Text files
215
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 5064 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\TokenBroker\Cache\fbaf94e759052658216786bfbabcdced1b67a5c2.tbres | binary | |
MD5:76C092ADACD55BBB0B3AB05ADFC65D99 | SHA256:6DB143A4C6B5FB2258064F019C85A9F342AA85A84CA6008A455BA1E319CD3B2B | |||
| 5064 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\ZWUI0EBX\www.bing[1].xml | text | |
MD5:464A6C88F53B56767764A6153CCCA29A | SHA256:59BCEDD62B833F4514E5D9639FE06524A85755E3D6431F71FB4600166F14569B | |||
| 5444 | WinRAR.exe | C:\Users\admin\Desktop\romboso\kutikolo.exe | executable | |
MD5:9837F035526568D5FBDC0D8E360384AA | SHA256:D2D6AA9227B436340CE953A4D4276AF8EF49014FE2BBE8F72C87D0395124972F | |||
| 5064 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\AppCache\5Y734AMR\67\Init[1].htm | html | |
MD5:68BCAFEF33F3DA609C1666B1D43F4F73 | SHA256:95010D5B72C73788AE7272BC5ABF9EC6AE21E69512717F2D7C908B1A6B3191CF | |||
| 5064 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\AppCache\5Y734AMR\67\oIhff5GTK8tatnbkxaeZVA7V72U[1].js | binary | |
MD5:D311944C8E8FD4D967010526ED103B12 | SHA256:1B6CEE7997ABFB5BD6127AA68056EF8FF4ACFADCE02A1BAD8A85AA9F8D23FD49 | |||
| 5064 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\AppCache\5Y734AMR\67\FgBbpIj0thGWZOh_xFnM9i4O7ek[1].css | text | |
MD5:908111EB0FFB1360D5DD61279C21703E | SHA256:1ED87CF425DED994B05A842271AB4D28A76F399E571688CF2E7B186F70DC3059 | |||
| 5444 | WinRAR.exe | C:\Users\admin\Desktop\romboso\wincr.dll | executable | |
MD5:CB7A6C74BA8CCBBFFBF757B0AAD8344B | SHA256:96DCF09F1A7FE161B41CA1D7D1304B0C71DA80DBEACE503A5268D2DFDE654BA7 | |||
| 5064 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\AppCache\5Y734AMR\67\4BpQ1bD8vX1mXuJObN-gg9RqkyQ.br[1].js | binary | |
MD5:8465A334065673EB6A6487C8D87539DB | SHA256:84ED6C495B322B0F2213CC33EC6C652D84D82E010C928B1141DB2290D4365F3D | |||
| 5064 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\AppCache\5Y734AMR\67\AptopUBu7_oVDubJxwvaIprW-lI[1].css | text | |
MD5:29DE55D0A7A581B230CC2D70686CD03A | SHA256:D9F161C1FE8751953E4F3819993C16C2A61A0121B527E09862C34C89E7B6C677 | |||
| 5064 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\AppCache\5Y734AMR\67\vOJNaIfAXvJzmnBm845ss-M9YR8[1].css | text | |
MD5:87BBB1A289EDC24C9F06B88229765467 | SHA256:85B291C46F9D1EEEC71DB839F649D748F48B203EA836F3ACE3B9B761947D960C | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
8
TCP/UDP connections
62
DNS requests
32
Threats
1
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
5064 | SearchApp.exe | GET | 200 | 2.23.77.188:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
4128 | svchost.exe | GET | 200 | 2.16.164.49:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
4128 | svchost.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
6468 | backgroundTaskHost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D | unknown | — | — | whitelisted |
1176 | svchost.exe | GET | 200 | 2.23.77.188:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
4816 | 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 |
4816 | 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 |
5064 | SearchApp.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEA77flR%2B3w%2FxBpruV2lte6A%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 |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
4712 | MoUsoCoreWorker.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
5064 | SearchApp.exe | 2.21.65.154:443 | www.bing.com | Akamai International B.V. | NL | whitelisted |
— | — | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
5064 | SearchApp.exe | 2.23.77.188:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
4128 | svchost.exe | 2.16.164.49:80 | crl.microsoft.com | Akamai International B.V. | NL | whitelisted |
4128 | svchost.exe | 95.101.149.131:80 | www.microsoft.com | Akamai International B.V. | NL | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
4128 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
1176 | svchost.exe | 20.190.159.0:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
www.bing.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
settings-win.data.microsoft.com |
| whitelisted |
login.live.com |
| whitelisted |
go.microsoft.com |
| whitelisted |
fp.msedge.net |
| whitelisted |
th.bing.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2192 | svchost.exe | Potentially Bad Traffic | ET DNS Query to a *.top domain - Likely Hostile |