| File name: | ReleaseBootstrapper.exe |
| Full analysis: | https://app.any.run/tasks/cdf539f6-74ab-499c-9d84-9a0c4fe509f0 |
| 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: | March 25, 2025, 01:58:08 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive, 5 sections |
| MD5: | E6B0F17E667A02188022382FE852C726 |
| SHA1: | 1BCB2A920EF0D61E4ED04C6ECA2466BD061AFCA6 |
| SHA256: | D0BE0F705A18DAC97F49288D9DB0B1217E6AB5F666CC3066C3BDF1F8CE760C44 |
| SSDEEP: | 49152:lJ6Wgy2s0W+9jFPveQh3NDthnMW9lrx/41LvXUiInrOypL8IJu+L8O5twiVlpKmB:l/gDs74xHeQhdDF9lKFBInqyL4OIoxnF |
| .exe | | | Win32 Executable MS Visual C++ (generic) (42.2) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (37.3) |
| .dll | | | Win32 Dynamic Link Library (generic) (8.8) |
| .exe | | | Win32 Executable (generic) (6) |
| .exe | | | Generic Win/DOS Executable (2.7) |
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2010:04:10 12:19:06+00:00 |
| ImageFileCharacteristics: | No relocs, Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 9 |
| CodeSize: | 25600 |
| InitializedDataSize: | 4094976 |
| UninitializedDataSize: | 16896 |
| EntryPoint: | 0x33ff |
| OSVersion: | 5 |
| ImageVersion: | 6 |
| SubsystemVersion: | 5 |
| Subsystem: | Windows GUI |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 812 | tasklist | C:\Windows\SysWOW64\tasklist.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Lists the current running tasks Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1116 | findstr "SophosHealth bdservicehost AvastUI AVGUI nsWscSvc ekrn" | C:\Windows\SysWOW64\findstr.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Find String (QGREP) Utility Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1188 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --mojo-platform-channel-handle=4304 --field-trial-handle=2300,i,7198464388838734682,2252790480789883191,262144 --variations-seed-version /prefetch:8 | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | — | msedge.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: LOW Description: Microsoft Edge Exit code: 0 Version: 122.0.2365.59 Modules
| |||||||||||||||
| 1324 | tasklist | C:\Windows\SysWOW64\tasklist.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Lists the current running tasks Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1532 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9223 --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3204 --field-trial-handle=1956,i,12172335132478030490,11479569540783496856,262144 --variations-seed-version /prefetch:1 | C:\Program Files\Google\Chrome\Application\chrome.exe | — | chrome.exe | |||||||||||
User: admin Company: Google LLC Integrity Level: LOW Description: Google Chrome Exit code: 0 Version: 122.0.6261.70 Modules
| |||||||||||||||
| 2140 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --disable-quic --no-appcompat-clear --mojo-platform-channel-handle=1440 --field-trial-handle=1956,i,12172335132478030490,11479569540783496856,262144 --variations-seed-version /prefetch:3 | C:\Program Files\Google\Chrome\Application\chrome.exe | chrome.exe | ||||||||||||
User: admin Company: Google LLC Integrity Level: MEDIUM Description: Google Chrome Exit code: 0 Version: 122.0.6261.70 Modules
| |||||||||||||||
| 2384 | extrac32 /Y /E Consider.accdt | C:\Windows\SysWOW64\extrac32.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft® CAB File Extract Utility Exit code: 0 Version: 5.00 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2420 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=2444 --field-trial-handle=2300,i,7198464388838734682,2252790480789883191,262144 --variations-seed-version /prefetch:3 | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | msedge.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Edge Exit code: 0 Version: 122.0.2365.59 Modules
| |||||||||||||||
| 2560 | cmd /c copy /b ..\Farmers.accdt + ..\Loving.accdt + ..\Essex.accdt + ..\Omissions.accdt N | C:\Windows\SysWOW64\cmd.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3024 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9223 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=4540 --field-trial-handle=1956,i,12172335132478030490,11479569540783496856,262144 --variations-seed-version /prefetch:1 | C:\Program Files\Google\Chrome\Application\chrome.exe | — | chrome.exe | |||||||||||
User: admin Company: Google LLC Integrity Level: LOW Description: Google Chrome Exit code: 0 Version: 122.0.6261.70 Modules
| |||||||||||||||
| (PID) Process: | (6824) Dock.com | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (6824) Dock.com | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (6824) Dock.com | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
| (PID) Process: | (4220) chrome.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Google\Chrome\BLBeacon |
| Operation: | write | Name: | failed_count |
Value: 0 | |||
| (PID) Process: | (4220) chrome.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Google\Chrome\BLBeacon |
| Operation: | write | Name: | state |
Value: 2 | |||
| (PID) Process: | (4220) chrome.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Google\Chrome\BLBeacon |
| Operation: | write | Name: | state |
Value: 1 | |||
| (PID) Process: | (4220) chrome.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Google\Update\ClientStateMedium\{8A69D345-D564-463C-AFF1-A69D9E530F96} |
| Operation: | write | Name: | usagestats |
Value: 0 | |||
| (PID) Process: | (4220) chrome.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Google\Chrome\StabilityMetrics |
| Operation: | write | Name: | user_experience_metrics.stability.exited_cleanly |
Value: 0 | |||
| (PID) Process: | (6264) msedge.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\EdgeUpdate\ClientStateMedium\{56EB18F8-B008-4CBD-B6D2-8C97FE7E9062}\LastWasDefault |
| Operation: | write | Name: | S-1-5-21-1693682860-607145093-2874071422-1001 |
Value: 1AF07D5AB78F2F00 | |||
| (PID) Process: | (6264) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\BLBeacon |
| Operation: | write | Name: | failed_count |
Value: 0 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 6744 | ReleaseBootstrapper.exe | C:\Users\admin\AppData\Local\Temp\Consider.accdt | compressed | |
MD5:2DBB271BA97E171B613BDFF649DE8A3A | SHA256:1D4D08714D46AF893D39A533F8F6C060B5E9CCA90CB9378C7F9675FAF2469D54 | |||
| 6744 | ReleaseBootstrapper.exe | C:\Users\admin\AppData\Local\Temp\Farmers.accdt | binary | |
MD5:811F35F280FDD1E3CDFCED423B65289B | SHA256:E256B960E50D471C990BF8CDFD4B74C96242E14256B72948337ABA8F101020FE | |||
| 2384 | extrac32.exe | C:\Users\admin\AppData\Local\Temp\Rand | binary | |
MD5:AEFBB751347FFF1C92606447EF1F8747 | SHA256:D9A48B72483B24D073FF783D3058A28549924D7BF68BCF4A6C2D1F303A4BC8F6 | |||
| 2384 | extrac32.exe | C:\Users\admin\AppData\Local\Temp\Artificial | binary | |
MD5:0E58AAABFABB2E319A758E4961D9DC24 | SHA256:0A564744855736E0CB1E78CE368F197EBDEC8B2BF51614833F20095ECE18458F | |||
| 2384 | extrac32.exe | C:\Users\admin\AppData\Local\Temp\Diamonds | binary | |
MD5:3CCC7DDE95B5A425B3CD3FBBBD6E52F1 | SHA256:9AC4012BE2E89950905FBD582FB674A1AD18816F45CEF9A1BD976592492AA549 | |||
| 2384 | extrac32.exe | C:\Users\admin\AppData\Local\Temp\Spring | binary | |
MD5:CDECFE5AD8BC85F3ABE608B909F87E1C | SHA256:7A6A0968506C4D9156A5DB02D29D37CB1817A9B82069E7BD24DE4FA684C9B3EA | |||
| 2384 | extrac32.exe | C:\Users\admin\AppData\Local\Temp\Creates | binary | |
MD5:4F0D9529E009B9DC45186BAEF93059A5 | SHA256:8AF885085DBE2C96585D05253C5FC430B2219F4DCA5898E83EFF5767EF1C9041 | |||
| 2384 | extrac32.exe | C:\Users\admin\AppData\Local\Temp\Arrange | binary | |
MD5:A54FF498C3AFF2F0BEF19883B7EBBA5B | SHA256:ABEDE8442F3DBF8F0E23BC3408D165B5469D99F36259C88DFA01B5193701F92A | |||
| 2384 | extrac32.exe | C:\Users\admin\AppData\Local\Temp\Rehab | binary | |
MD5:A59175D52E449F19FDA83F216D8EA86C | SHA256:797F6635CF70D41F32795EC0FAA2E687149C09DF3F25792D43D6F834A04B1846 | |||
| 2384 | extrac32.exe | C:\Users\admin\AppData\Local\Temp\Established | binary | |
MD5:3B81EE4E6AB3BA8B4F69EC309FF589C1 | SHA256:CABCC8FF82AAC6DA1602290B88548723FB90EA25BAC39E25247BA955338FDAEE | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1532 | RUXIMICS.exe | GET | 200 | 23.216.77.6:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 304 | 4.245.163.56:443 | https://slscr.update.microsoft.com/SLS/%7B522D76A4-93E1-47F8-B8CE-07C937AD1A1E%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL | unknown | — | — | — |
— | — | GET | 200 | 20.242.39.171:443 | https://fe3cr.delivery.mp.microsoft.com/clientwebservice/ping | unknown | — | — | — |
6564 | SIHClient.exe | GET | 200 | 23.216.77.28:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut_2010-06-23.crl | unknown | — | — | whitelisted |
6564 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20Update%20Signing%20CA%202.1.crl | unknown | — | — | whitelisted |
6564 | SIHClient.exe | GET | 200 | 23.216.77.28:80 | http://crl.microsoft.com/pki/crl/products/MicTimStaPCA_2010-07-01.crl | unknown | — | — | whitelisted |
6564 | 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 |
6564 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Signing%20CA%202.1.crl | unknown | — | — | whitelisted |
— | — | POST | 200 | 40.126.32.68:443 | https://login.live.com/RST2.srf | unknown | xml | 1.35 Kb | whitelisted |
— | — | POST | 400 | 40.126.32.68:443 | https://login.live.com/ppsecure/deviceaddcredential.srf | unknown | text | 203 b | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
1532 | RUXIMICS.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
3216 | svchost.exe | 40.115.3.253:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
1532 | RUXIMICS.exe | 23.216.77.6:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
6544 | svchost.exe | 40.126.32.134:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
5280 | backgroundTaskHost.exe | 20.223.36.55:443 | arc.msn.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
6564 | SIHClient.exe | 4.245.163.56:443 | slscr.update.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
login.live.com |
| whitelisted |
arc.msn.com |
| whitelisted |
dlmLBUzKKWWpirLBfbtXjYwRvnex.dlmLBUzKKWWpirLBfbtXjYwRvnex |
| unknown |
slscr.update.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
PID | Process | Class | Message |
|---|---|---|---|
6824 | Dock.com | Misc activity | ET INFO Observed Telegram Domain (t .me in TLS SNI) |
— | — | A Network Trojan was detected | ET MALWARE Win32/Stealc/Vidar Stealer Style Headers In HTTP POST M1 |
— | — | Malware Command and Control Activity Detected | ET MALWARE Win32/Stealc/Vidar Stealer Active C2 Responding with plugins Config M1 |
— | — | Malware Command and Control Activity Detected | ET MALWARE Win32/Stealc/Vidar Stealer Style Headers In HTTP POST M2 |
— | — | Malware Command and Control Activity Detected | ET MALWARE Win32/Stealc/Vidar Stealer Style Headers In HTTP POST M2 |
— | — | A Network Trojan was detected | STEALER [ANY.RUN] Base64 Encoded SQLite Dump |
— | — | Malware Command and Control Activity Detected | ET MALWARE Win32/Stealc/Vidar Stealer Style Headers In HTTP POST M2 |
— | — | A Network Trojan was detected | STEALER [ANY.RUN] Base64 Encoded SQLite Dump |
— | — | Malware Command and Control Activity Detected | ET MALWARE Win32/Stealc/Vidar Stealer Style Headers In HTTP POST M2 |
— | — | A Network Trojan was detected | STEALER [ANY.RUN] Base64 Encoded SQLite Dump |