| File name: | Chrome.exe |
| Full analysis: | https://app.any.run/tasks/be5ba99c-4ace-48a3-b421-c45dd6b07134 |
| Verdict: | Malicious activity |
| Threats: | AsyncRAT is a RAT that can monitor and remotely control infected systems. This malware was introduced on Github as a legitimate open-source remote administration software, but hackers use it for its many powerful malicious functions. |
| Analysis date: | June 30, 2023, 10:01:13 |
| 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: | BFFBC86DD679F65F8D39B64A83E51B1B |
| SHA1: | 726E032F94A1451587AD96E290BD5A9F1705137C |
| SHA256: | BD567B6943C4FBB0BE32E1D8683BF14F75CB93997584B02BDFA5383746FFED5E |
| SSDEEP: | 49152:lvkt62XlaSFNWPjljiFa2RoUYIsxd6uBxOfoGdA5pTHHB72eh2NT:lv462XlaSFNWPjljiFXRoUYIs6To |
| .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: | 1.0.0.0 |
|---|---|
| ProductVersion: | 1.0.0.0 |
| ProductName: | Google Update Setup |
| OriginalFileName: | Updater |
| LegalTrademarks: | - |
| LegalCopyright: | - |
| InternalName: | Updater |
| FileVersion: | 1.0.0.0 |
| FileDescription: | - |
| CompanyName: | - |
| Comments: | - |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 1.0.0.0 |
| FileVersionNumber: | 1.0.0.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x31e3be |
| UninitializedDataSize: | - |
| InitializedDataSize: | 15872 |
| 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: | - |
| FileVersion: | 1.0.0.0 |
| InternalName: | Updater |
| LegalCopyright: | - |
| LegalTrademarks: | - |
| OriginalFilename: | Updater |
| ProductName: | Google Update Setup |
| ProductVersion: | 1.0.0.0 |
| Assembly Version: | 1.0.0.0 |
| 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 | 0x0031C3C4 | 0x0031C400 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.07704 |
.rsrc | 0x00320000 | 0x00003AE0 | 0x00003C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.73181 |
.reloc | 0x00324000 | 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 | Latin 1 / Western European | UNKNOWN | RT_MANIFEST |
mscoree.dll |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1176 | taskkill /f /im svchost.exe | C:\Windows\System32\taskkill.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Terminates Processes Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2360 | "schtasks" /create /tn "ChromeUpdater" /sc ONLOGON /tr "C:\Users\admin\AppData\Roaming\ChromeUpdater\Updater.exe" /rl HIGHEST /f | C:\Windows\System32\schtasks.exe | — | Updater.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2492 | CHCP 437 | C:\Windows\System32\chcp.com | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Change CodePage Utility Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2760 | "C:\Users\admin\Desktop\Chrome.exe" | C:\Users\admin\Desktop\Chrome.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 3 Version: 1.0.0.0 Modules
| |||||||||||||||
| 2772 | "cmd" /K CHCP 437 | C:\Windows\System32\cmd.exe | — | Updater.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2996 | "C:\Users\admin\AppData\Roaming\ChromeUpdater\Updater.exe" | C:\Users\admin\AppData\Roaming\ChromeUpdater\Updater.exe | Chrome.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 1.0.0.0 Modules
Quasar(PID) Process(2996) Updater.exe Version1.4.1 C2 (2)tkgo11.ddns.net:418 Sub_DirChromeUpdater Install_NameUpdater.exe Mutexc7d5b46e-afe0-4186-bee3-c1e572791874 StartupChromeUpdater TagBasic LogDirLogs SignatureJiET4dsBWVNwGMT1DHzW2ZEJgPwReBoDuxUHS+8XhrhIziHnC/KI3JB5HmVDf8BSsaQbGdDEXo/Ty6TJbnJZcHH4gyxBPKGWdnpSlmnAjnd9UIuX50T0AHVI4ob2xgtivZlrfMoCsIzrazFfKcX9W/kP0i4A4Hb9CWiO7gENCetZsfwWyQkuB18J2K4+s4L6O1qMLON3P8RvWEqnSR4ERayxD9/+4bw0211wcarILp/23bjW6girnDArI1HOePjyuCd6My9AZWsHG8N245+TIzInNmbmRmDCWps7HW2BDKN4... CertificateMIIE9DCCAtygAwIBAgIQALQGhNJC4sfBrZDHwCIsczANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTIzMDYxNjA4NTkwN1oYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAqtA1GBwdNos2fQfi+E1FQWv4FzNvNZKe1z2A5nnwcYF0iZThI2iTW+uLy34u7pQtG6v33FKb... | |||||||||||||||
| 3164 | "C:\Windows\System32\cmd.exe" /k START "" "C:\Users\admin\AppData\Roaming\ChromeUpdater\Updater.exe" & EXIT | C:\Windows\System32\cmd.exe | Updater.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 3292 | "C:\Program Files\Windows Media Player\wmpnscfg.exe" | C:\Program Files\Windows Media Player\wmpnscfg.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Media Player Network Sharing Service Configuration Application Exit code: 0 Version: 12.0.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 4024 | "C:\Users\admin\AppData\Roaming\ChromeUpdater\Updater.exe" | C:\Users\admin\AppData\Roaming\ChromeUpdater\Updater.exe | cmd.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Version: 1.0.0.0 Modules
Quasar(PID) Process(4024) Updater.exe Version1.4.1 C2 (2)tkgo11.ddns.net:418 Sub_DirChromeUpdater Install_NameUpdater.exe Mutexc7d5b46e-afe0-4186-bee3-c1e572791874 StartupChromeUpdater TagBasic LogDirLogs SignatureJiET4dsBWVNwGMT1DHzW2ZEJgPwReBoDuxUHS+8XhrhIziHnC/KI3JB5HmVDf8BSsaQbGdDEXo/Ty6TJbnJZcHH4gyxBPKGWdnpSlmnAjnd9UIuX50T0AHVI4ob2xgtivZlrfMoCsIzrazFfKcX9W/kP0i4A4Hb9CWiO7gENCetZsfwWyQkuB18J2K4+s4L6O1qMLON3P8RvWEqnSR4ERayxD9/+4bw0211wcarILp/23bjW6girnDArI1HOePjyuCd6My9AZWsHG8N245+TIzInNmbmRmDCWps7HW2BDKN4... CertificateMIIE9DCCAtygAwIBAgIQALQGhNJC4sfBrZDHwCIsczANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTIzMDYxNjA4NTkwN1oYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAqtA1GBwdNos2fQfi+E1FQWv4FzNvNZKe1z2A5nnwcYF0iZThI2iTW+uLy34u7pQtG6v33FKb... | |||||||||||||||
| (PID) Process: | (2760) Chrome.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16D\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2996) Updater.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16D\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2996) Updater.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | ChromeUpdater |
Value: "C:\Users\admin\AppData\Roaming\ChromeUpdater\Updater.exe" | |||
| (PID) Process: | (3292) wmpnscfg.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Media Player NSS\3.0\Events\{5D36F858-EB24-4B50-9E03-6986BBBCEC8A}\{E6359587-58E3-48E8-BB37-2C64C49AE7B6} |
| Operation: | delete key | Name: | (default) |
Value: | |||
| (PID) Process: | (3292) wmpnscfg.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Media Player NSS\3.0\Events\{5D36F858-EB24-4B50-9E03-6986BBBCEC8A} |
| Operation: | delete key | Name: | (default) |
Value: | |||
| (PID) Process: | (3292) wmpnscfg.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\MediaPlayer\Health\{755A723B-E117-4FA6-9A26-4093D9C668F2} |
| Operation: | delete key | Name: | (default) |
Value: | |||
| (PID) Process: | (2996) Updater.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (2996) Updater.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
| (PID) Process: | (2996) Updater.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (2996) Updater.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2760 | Chrome.exe | C:\Users\admin\AppData\Roaming\ChromeUpdater\Updater.exe | executable | |
MD5:BFFBC86DD679F65F8D39B64A83E51B1B | SHA256:BD567B6943C4FBB0BE32E1D8683BF14F75CB93997584B02BDFA5383746FFED5E | |||
| 2996 | Updater.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506 | compressed | |
MD5:3AC860860707BAAF32469FA7CC7C0192 | SHA256:D015145D551ECD14916270EFAD773BBC9FD57FAD2228D2C24559F696C961D904 | |||
| 2996 | Updater.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506 | binary | |
MD5:65C47EF11A847A2D82AA58E91E16AD46 | SHA256:90F97C6EDFBD2A2092E76C623B8311D4F6D8B366DC5AE73959A5D50B9E67E3D0 | |||
| 2996 | Updater.exe | C:\Users\admin\AppData\Local\Temp\Tar949D.tmp | binary | |
MD5:4FF65AD929CD9A367680E0E5B1C08166 | SHA256:C8733C93CC5AAF5CA206D06AF22EE8DBDEC764FB5085019A6A9181FEB9DFDEE6 | |||
| 2996 | Updater.exe | C:\Users\admin\AppData\Local\Temp\Cab949C.tmp | compressed | |
MD5:3AC860860707BAAF32469FA7CC7C0192 | SHA256:D015145D551ECD14916270EFAD773BBC9FD57FAD2228D2C24559F696C961D904 | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2996 | Updater.exe | GET | 200 | 209.197.3.8:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?cefc00e41ca876a9 | US | compressed | 62.3 Kb | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1076 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
4012 | svchost.exe | 239.255.255.250:1900 | — | — | — | whitelisted |
2996 | Updater.exe | 1.233.27.178:418 | tkgo11.ddns.net | SK Broadband Co Ltd | KR | malicious |
2996 | Updater.exe | 209.197.3.8:80 | ctldl.windowsupdate.com | STACKPATH-CDN | US | whitelisted |
4024 | Updater.exe | 1.233.27.178:418 | tkgo11.ddns.net | SK Broadband Co Ltd | KR | malicious |
2996 | Updater.exe | 195.201.57.90:443 | ipwho.is | Hetzner Online GmbH | DE | suspicious |
4024 | Updater.exe | 195.201.57.90:443 | ipwho.is | Hetzner Online GmbH | DE | suspicious |
Domain | IP | Reputation |
|---|---|---|
tkgo11.ddns.net |
| malicious |
ctldl.windowsupdate.com |
| whitelisted |
ipwho.is |
| suspicious |
PID | Process | Class | Message |
|---|---|---|---|
1076 | svchost.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |
2996 | Updater.exe | Domain Observed Used for C2 Detected | ET MALWARE Observed Malicious SSL Cert (Quasar CnC) |
2996 | Updater.exe | Domain Observed Used for C2 Detected | ET MALWARE Generic AsyncRAT Style SSL Cert |
1076 | svchost.exe | Potentially Bad Traffic | ET INFO External IP Lookup Domain in DNS Lookup (ipwho .is) |
2996 | Updater.exe | Malware Command and Control Activity Detected | REMOTE [ANY.RUN] QuasarRAT Successful Connection (CBC_SHA384) |
1076 | svchost.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |
4024 | Updater.exe | Domain Observed Used for C2 Detected | ET MALWARE Observed Malicious SSL Cert (Quasar CnC) |
4024 | Updater.exe | Domain Observed Used for C2 Detected | ET MALWARE Generic AsyncRAT Style SSL Cert |
1076 | svchost.exe | Potentially Bad Traffic | ET INFO External IP Lookup Domain in DNS Lookup (ipwho .is) |
4024 | Updater.exe | Malware Command and Control Activity Detected | REMOTE [ANY.RUN] QuasarRAT Successful Connection (CBC_SHA384) |