| File name: | 250429-a5s1watpv7_pw_infected.zip |
| Full analysis: | https://app.any.run/tasks/2e237c2f-6e17-44da-b617-1192e4786b86 |
| Verdict: | Malicious activity |
| Threats: | Stealc is a stealer malware that targets victims’ sensitive data, which it exfiltrates from browsers, messaging apps, and other software. The malware is equipped with advanced features, including fingerprinting, control panel, evasion mechanisms, string obfuscation, etc. Stealc establishes persistence and communicates with its C2 server through HTTP POST requests. |
| Analysis date: | April 29, 2025, 07:10:52 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/zip |
| File info: | Zip archive data, at least v2.0 to extract, compression method=AES Encrypted |
| MD5: | 8483E4A47B2294EAEEFB616368485BFB |
| SHA1: | 289F2055815303A5D85529BF78C663CB8C4E1CFB |
| SHA256: | 9A3A0C36310465A6B3AE492ACD797BCE7607FD51D3BFAAC434F66234989B4E2A |
| SSDEEP: | 49152:ZPJBF7H26sv4wMgr+vNIyTJtza7Kl6TdUQ09X3UgFlZLKYgtGMtIO6Rjywv0GZnA:ZPJb7H2VvZMOuWynO7KITSUgFlsXLtW+ |
MALICIOUS
Generic archive extractor
- WinRAR.exe (PID: 7556)
STEALC has been detected
- InstallUtil.exe (PID: 8160)
- InstallUtil.exe (PID: 4724)
SUSPICIOUS
Reads security settings of Internet Explorer
- InstallUtil.exe (PID: 8160)
- InstallUtil.exe (PID: 4724)
- WinRAR.exe (PID: 7556)
Executes application which crashes
- InstallUtil.exe (PID: 8160)
- InstallUtil.exe (PID: 4724)
INFO
Executable content was dropped or overwritten
- WinRAR.exe (PID: 7556)
Reads the machine GUID from the registry
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 7916)
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 1228)
Manual execution by a user
- InstallUtil.exe (PID: 8160)
- InstallUtil.exe (PID: 4724)
Checks proxy server information
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 7916)
- InstallUtil.exe (PID: 8160)
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 1228)
- InstallUtil.exe (PID: 4724)
Reads the computer name
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 7916)
- InstallUtil.exe (PID: 8160)
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 1228)
- InstallUtil.exe (PID: 4724)
Reads Environment values
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 7916)
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 1228)
Reads the software policy settings
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 7916)
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 1228)
- slui.exe (PID: 7712)
Checks supported languages
- InstallUtil.exe (PID: 8160)
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 1228)
- InstallUtil.exe (PID: 4724)
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 7916)
Creates files or folders in the user directory
- WerFault.exe (PID: 4880)
- WerFault.exe (PID: 1676)
Disables trace logs
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 1228)
- 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe (PID: 7916)
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: | 0x0009 |
| ZipCompression: | Unknown (99) |
| ZipModifyDate: | 1980:00:00 00:00:00 |
| ZipCRC: | 0x00000000 |
| ZipCompressedSize: | 1084586 |
| ZipUncompressedSize: | 1169408 |
| ZipFileName: | 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe |
Total processes
141
Monitored processes
10
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1228 | "C:\Users\admin\AppData\Local\Temp\Rar$EXb7556.1379\29042025_0048_7456f63a46cc318334a70159aa3c4291.exe" | C:\Users\admin\AppData\Local\Temp\Rar$EXb7556.1379\29042025_0048_7456f63a46cc318334a70159aa3c4291.exe | WinRAR.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Rgcrx Exit code: 4294967295 Version: 1.0.2765.29451 Modules
| |||||||||||||||
| 1676 | C:\WINDOWS\system32\WerFault.exe -u -p 4724 -s 1212 | C:\Windows\System32\WerFault.exe | — | InstallUtil.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Problem Reporting Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4724 | "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe" | C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: .NET Framework installation utility Exit code: 3221226505 Version: 4.8.9037.0 built by: NET481REL1 Modules
| |||||||||||||||
| 4880 | C:\WINDOWS\system32\WerFault.exe -u -p 8160 -s 968 | C:\Windows\System32\WerFault.exe | — | InstallUtil.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Problem Reporting Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5008 | C:\WINDOWS\System32\slui.exe -Embedding | C:\Windows\System32\slui.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Activation Client Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7556 | "C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\AppData\Local\Temp\250429-a5s1watpv7_pw_infected.zip | C:\Program Files\WinRAR\WinRAR.exe | explorer.exe | ||||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Version: 5.91.0 Modules
| |||||||||||||||
| 7676 | C:\WINDOWS\system32\SppExtComObj.exe -Embedding | C:\Windows\System32\SppExtComObj.Exe | — | svchost.exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: KMS Connection Broker Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7712 | "C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent | C:\Windows\System32\slui.exe | SppExtComObj.Exe | ||||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows Activation Client Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7916 | "C:\Users\admin\AppData\Local\Temp\Rar$EXb7556.47335\29042025_0048_7456f63a46cc318334a70159aa3c4291.exe" | C:\Users\admin\AppData\Local\Temp\Rar$EXb7556.47335\29042025_0048_7456f63a46cc318334a70159aa3c4291.exe | WinRAR.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Rgcrx Exit code: 4294967295 Version: 1.0.2765.29451 Modules
| |||||||||||||||
| 8160 | "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe" | C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: .NET Framework installation utility Exit code: 3221226505 Version: 4.8.9037.0 built by: NET481REL1 Modules
| |||||||||||||||
Total events
8 603
Read events
8 573
Write events
30
Delete events
0
Modification events
| (PID) Process: | (7556) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 3 |
Value: C:\Users\admin\Desktop\preferences.zip | |||
| (PID) Process: | (7556) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 2 |
Value: C:\Users\admin\Desktop\chromium_ext.zip | |||
| (PID) Process: | (7556) 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: | (7556) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\AppData\Local\Temp\250429-a5s1watpv7_pw_infected.zip | |||
| (PID) Process: | (7556) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (7556) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (7556) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (7556) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (7556) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface |
| Operation: | write | Name: | ShowPassword |
Value: 0 | |||
| (PID) Process: | (7916) 29042025_0048_7456f63a46cc318334a70159aa3c4291.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\29042025_0048_7456f63a46cc318334a70159aa3c4291_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
Executable files
2
Suspicious files
4
Text files
4
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 4880 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_InstallUtil.exe_1323bf91467d8342e797628f80518b741ce8350_3d87e84d_2d12fc58-8d64-4700-b242-862db1bf580f\Report.wer | — | |
MD5:— | SHA256:— | |||
| 1676 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_InstallUtil.exe_1323bf91467d8342e797628f80518b741ce8350_3d87e84d_8eb046df-a8d8-49ed-b210-acff4c889d7f\Report.wer | — | |
MD5:— | SHA256:— | |||
| 1676 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WER8481.tmp.xml | xml | |
MD5:A4632BF7DBB5D19DC6422CB8B0A22D8F | SHA256:63BF605C7B87DA663EF607C1B68425AFD9414292945046DD2A14892F7844AC81 | |||
| 7556 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$EXb7556.1379\29042025_0048_7456f63a46cc318334a70159aa3c4291.exe | executable | |
MD5:3D35FEB1304CF3AD007269AF5258B950 | SHA256:C3F20C6B73E715D59D88A9A30AD59E758F8D8A2DE99001D01BA31EB393742F9B | |||
| 1676 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WER83C3.tmp.dmp | binary | |
MD5:D13C5E5FA0D992A8E8FF9C97DC19E3A6 | SHA256:DAD4D8124B5C22512F20F0082F13D58A3305AF33317BCB3DCE8FC80DBA9A1461 | |||
| 4880 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WEREE0C.tmp.WERInternalMetadata.xml | xml | |
MD5:4B0753091ADD336D8B6CDFB7B3C30B1E | SHA256:009BD7432E7A9913D8FA8F229D8CC651DEA1D629A9E58CCEAC80D391539EB868 | |||
| 1676 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WER8451.tmp.WERInternalMetadata.xml | xml | |
MD5:2AD9B8EBE9E7E7705DE2AF232C1CCF6D | SHA256:C1A5EB29B685778546299E9A9D6AB5687D485717817BF41EC45EFE1FCCCD4F93 | |||
| 4880 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WEREE2C.tmp.xml | xml | |
MD5:6C200234E5B38C6787077F272FD9F954 | SHA256:5AC3759366701AE062B24BD3E4F11EB82D967A7B7E69718DF13FD4F75926A01D | |||
| 7556 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$EXb7556.47335\29042025_0048_7456f63a46cc318334a70159aa3c4291.exe | executable | |
MD5:3D35FEB1304CF3AD007269AF5258B950 | SHA256:C3F20C6B73E715D59D88A9A30AD59E758F8D8A2DE99001D01BA31EB393742F9B | |||
| 4880 | WerFault.exe | C:\Users\admin\AppData\Local\CrashDumps\InstallUtil.exe.8160.dmp | binary | |
MD5:4B553B7E121C715077793BEBACCDEF48 | SHA256:62E82878EBF277D7E465FCEB92DFCD63584E91A45C08D8801A0B7C832C8469D2 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
7
TCP/UDP connections
25
DNS requests
18
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 23.216.77.25:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
5496 | MoUsoCoreWorker.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
5496 | MoUsoCoreWorker.exe | GET | 200 | 23.216.77.25:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
7328 | 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 |
6544 | svchost.exe | GET | 200 | 184.30.131.245:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
7328 | 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 |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
2104 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 23.216.77.25:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
5496 | MoUsoCoreWorker.exe | 23.216.77.25:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
5496 | MoUsoCoreWorker.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
3216 | svchost.exe | 172.211.123.249:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
6544 | svchost.exe | 20.190.160.4:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
crl.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
settings-win.data.microsoft.com |
| whitelisted |
samsplaying.vip |
| unknown |
wallsekker.store |
| unknown |
slscr.update.microsoft.com |
| whitelisted |