| File name: | Client-built.exe |
| Full analysis: | https://app.any.run/tasks/81a7de7f-d9b8-49fc-9e3b-1c1c35c933ae |
| Verdict: | Malicious activity |
| Threats: | Quasar is a very popular RAT in the world thanks to its code being available in open-source. This malware can be used to control the victim’s computer remotely. |
| Analysis date: | June 26, 2023, 03:34:11 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | AFD7CB797A1E9B8E73727A01FFCC70C5 |
| SHA1: | 44A4B5317222F56ECD51DC2909F50BBCC3FF17F2 |
| SHA256: | CBDA428BB04464C5D2D2D55B190CEDDA8089600AFBA2B53B7FA926B64BD69128 |
| SSDEEP: | 49152:WveI22SsaNYfdPBldt698dBcjHUjRJ6VbR3LoGdyTHHB72eh2NT:WvT22SsaNYfdPBldt6+dBcjHUjRJ6n |
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (56.7) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (21.3) |
| .scr | | | Windows screen saver (10.1) |
| .dll | | | Win32 Dynamic Link Library (generic) (5) |
| .exe | | | Win32 Executable (generic) (3.4) |
| AssemblyVersion: | 1.4.1.0 |
|---|---|
| ProductVersion: | 1.4.1 |
| ProductName: | Quasar |
| OriginalFileName: | Client.exe |
| LegalTrademarks: | - |
| LegalCopyright: | Copyright © MaxXor 2023 |
| InternalName: | Client.exe |
| FileVersion: | 1.4.1 |
| FileDescription: | Quasar Client |
| CompanyName: | - |
| Comments: | - |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 1.4.1.0 |
| FileVersionNumber: | 1.4.1.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x31e3ee |
| UninitializedDataSize: | - |
| InitializedDataSize: | 3584 |
| CodeSize: | 3261440 |
| LinkerVersion: | 8 |
| PEType: | PE32 |
| ImageFileCharacteristics: | Executable, 32-bit |
| TimeStamp: | 2023:03:12 16:16:39+00:00 |
| MachineType: | Intel 386 or later, and compatibles |
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 12-Mar-2023 16:16:39 |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | Quasar Client |
| FileVersion: | 1.4.1 |
| InternalName: | Client.exe |
| LegalCopyright: | Copyright © MaxXor 2023 |
| LegalTrademarks: | - |
| OriginalFilename: | Client.exe |
| ProductName: | Quasar |
| ProductVersion: | 1.4.1 |
| Assembly Version: | 1.4.1.0 |
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000080 |
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 3 |
| Time date stamp: | 12-Mar-2023 16:16:39 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00002000 | 0x0031C3F4 | 0x0031C400 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.08542 |
.rsrc | 0x00320000 | 0x00000A93 | 0x00000C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.65397 |
.reloc | 0x00322000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.10191 |
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.18029 | 1751 | UNKNOWN | UNKNOWN | RT_MANIFEST |
mscoree.dll |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 120 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1008,15799876642863507758,10890402649634936400,131072 --enable-features=PasswordImport --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3288 /prefetch:8 | 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: 86.0.4240.198 Modules
| |||||||||||||||
| 748 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win32 --annotation=prod=Chrome --annotation=ver=86.0.4240.198 --initial-client-data=0xc8,0xcc,0xd0,0x9c,0xd4,0x6c6dd988,0x6c6dd998,0x6c6dd9a4 | 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: 86.0.4240.198 Modules
| |||||||||||||||
| 956 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1008,15799876642863507758,10890402649634936400,131072 --enable-features=PasswordImport --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3316 /prefetch:8 | 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: 86.0.4240.198 Modules
| |||||||||||||||
| 1160 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1008,15799876642863507758,10890402649634936400,131072 --enable-features=PasswordImport --gpu-preferences=MAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAQAAAAAAAAAAAAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAA= --use-gl=swiftshader-webgl --mojo-platform-channel-handle=2852 /prefetch:2 | 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: 86.0.4240.198 Modules
| |||||||||||||||
| 1188 | "C:\Program Files\Google\Chrome\Application\chrome.exe" | C:\Program Files\Google\Chrome\Application\chrome.exe | explorer.exe | ||||||||||||
User: admin Company: Google LLC Integrity Level: MEDIUM Description: Google Chrome Exit code: 0 Version: 86.0.4240.198 Modules
| |||||||||||||||
| 1596 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1008,15799876642863507758,10890402649634936400,131072 --enable-features=PasswordImport --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3304 /prefetch:8 | 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: 86.0.4240.198 Modules
| |||||||||||||||
| 1644 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1008,15799876642863507758,10890402649634936400,131072 --enable-features=PasswordImport --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3704 /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: 86.0.4240.198 Modules
| |||||||||||||||
| 1976 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1008,15799876642863507758,10890402649634936400,131072 --enable-features=PasswordImport --gpu-preferences=MAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAQAAAAAAAAAAAAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAA= --mojo-platform-channel-handle=1024 /prefetch:2 | 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: 86.0.4240.198 Modules
| |||||||||||||||
| 2224 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1008,15799876642863507758,10890402649634936400,131072 --enable-features=PasswordImport --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=1268 /prefetch:8 | 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: 86.0.4240.198 Modules
| |||||||||||||||
| 2472 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1008,15799876642863507758,10890402649634936400,131072 --enable-features=PasswordImport --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3616 /prefetch:8 | 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: 86.0.4240.198 Modules
| |||||||||||||||
| (PID) Process: | (3140) Client-built.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16D\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (3508) Client.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16D\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (3508) Client.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | Quasar Client Startup |
Value: "C:\Users\admin\AppData\Roaming\SubDir\Client.exe" | |||
| (PID) Process: | (1188) chrome.exe | Key: | HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon |
| Operation: | write | Name: | failed_count |
Value: 0 | |||
| (PID) Process: | (1188) chrome.exe | Key: | HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon |
| Operation: | write | Name: | state |
Value: 1 | |||
| (PID) Process: | (1188) chrome.exe | Key: | HKEY_CURRENT_USER\Software\Google\Chrome\ThirdParty |
| Operation: | write | Name: | StatusCodes |
Value: 01000000 | |||
| (PID) Process: | (1188) chrome.exe | Key: | HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon |
| Operation: | write | Name: | state |
Value: 2 | |||
| (PID) Process: | (1188) chrome.exe | Key: | HKEY_CURRENT_USER\Software\Google\Update\ClientState\{8A69D345-D564-463c-AFF1-A69D9E530F96} |
| Operation: | write | Name: | dr |
Value: 1 | |||
| (PID) Process: | (1188) chrome.exe | Key: | HKEY_CURRENT_USER\Software\Google\Chrome |
| Operation: | write | Name: | UsageStatsInSample |
Value: 0 | |||
| (PID) Process: | (1188) chrome.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Google\Update\ClientStateMedium\{8A69D345-D564-463C-AFF1-A69D9E530F96} |
| Operation: | write | Name: | usagestats |
Value: 0 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1188 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\BrowserMetrics\BrowserMetrics-6499076E-4A4.pma | — | |
MD5:— | SHA256:— | |||
| 748 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\CrashpadMetrics.pma | binary | |
MD5:03C4F648043A88675A920425D824E1B3 | SHA256:F91DBB7C64B4582F529C968C480D2DCE1C8727390482F31E4355A27BB3D9B450 | |||
| 1188 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Local Storage\leveldb\LOG.old~RF127efc.TMP | text | |
MD5:81F483F77EE490F35306A4F94DB2286B | SHA256:82434CE3C9D13F509EBEEBE3A7A1A1DE9AB4557629D9FC855761E0CFA45E8BCE | |||
| 1188 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Local Storage\leveldb\LOG.old | text | |
MD5:7721CDA9F5B73CE8A135471EB53B4E0E | SHA256:DD730C576766A46FFC84E682123248ECE1FF1887EC0ACAB22A5CE93A450F4500 | |||
| 1188 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\LOG.old | text | |
MD5:8FF312A95D60ED89857FEB720D80D4E1 | SHA256:946A57FAFDD28C3164D5AB8AB4971B21BD5EC5BFFF7554DBF832CB58CC37700B | |||
| 1188 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\Last Version | text | |
MD5:00046F773EFDD3C8F8F6D0F87A2B93DC | SHA256:593EDE11D17AF7F016828068BCA2E93CF240417563FB06DC8A579110AEF81731 | |||
| 1188 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\Crashpad\settings.dat | binary | |
MD5:9C016064A1F864C8140915D77CF3389A | SHA256:0E7265D4A8C16223538EDD8CD620B8820611C74538E420A88E333BE7F62AC787 | |||
| 1188 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\LOG.old~RF127eec.TMP | text | |
MD5:936EB7280DA791E6DD28EF3A9B46D39C | SHA256:CBAF2AFD831B32F6D1C12337EE5D2F090D6AE1F4DCB40B08BEF49BF52AD9721F | |||
| 1188 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\LOG.old~RF127eec.TMP | text | |
MD5:64AD8ED3E666540337BA541C549F72F7 | SHA256:BECBDB08B5B37D203A85F2E974407334053BB1D2270F0B3C9A4DB963896F2206 | |||
| 3140 | Client-built.exe | C:\Users\admin\AppData\Roaming\SubDir\Client.exe | executable | |
MD5:AFD7CB797A1E9B8E73727A01FFCC70C5 | SHA256:CBDA428BB04464C5D2D2D55B190CEDDA8089600AFBA2B53B7FA926B64BD69128 | |||
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
2552 | svchost.exe | 239.255.255.250:1900 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1076 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
1188 | chrome.exe | 224.0.0.251:5353 | — | — | — | unknown |
2224 | chrome.exe | 142.250.186.35:443 | clientservices.googleapis.com | GOOGLE | US | whitelisted |
2224 | chrome.exe | 216.58.212.131:443 | www.gstatic.com | GOOGLE | US | whitelisted |
2224 | chrome.exe | 142.250.186.106:443 | content-autofill.googleapis.com | GOOGLE | US | whitelisted |
2224 | chrome.exe | 142.250.185.225:443 | clients2.googleusercontent.com | GOOGLE | US | whitelisted |
2224 | chrome.exe | 142.250.186.173:443 | accounts.google.com | GOOGLE | US | suspicious |
Domain | IP | Reputation |
|---|---|---|
dns.msftncsi.com |
| shared |
accounts.google.com |
| shared |
clients2.google.com |
| whitelisted |
www.google.com |
| malicious |
clients2.googleusercontent.com |
| whitelisted |
update.googleapis.com |
| whitelisted |
clientservices.googleapis.com |
| whitelisted |
encrypted-tbn0.gstatic.com |
| whitelisted |
www.gstatic.com |
| whitelisted |
ssl.gstatic.com |
| whitelisted |