| File name: | DropboxInstaller.exe |
| Full analysis: | https://app.any.run/tasks/c1a86c4a-9b3d-49fa-9ff7-6da2b7f766ac |
| Verdict: | Malicious activity |
| Analysis date: | September 19, 2018, 09:03:42 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | 76DE8D391E95B91ACFB418901B4EA2BC |
| SHA1: | 95B10DCAD65929D4B946683D6144A52399A8461A |
| SHA256: | 94F7AE7D0E1F374FF2A503ED14616C66D5054DAB5010F8A95E885DEDC2669D03 |
| SSDEEP: | 12288:t/iSu2OyFM657L8E0kwBPodLeuFixi53Z1IM2mhqDyyHucuepY/9TShDSg:t/iKN5x0ML+Y3Z1IBH9Ocue6/9TSVS |
| .exe | | | Win32 Executable MS Visual C++ (generic) (67.4) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (14.2) |
| .exe | | | Win32 Executable (generic) (9.7) |
| .exe | | | Generic Win/DOS Executable (4.3) |
| .exe | | | DOS Executable Generic (4.3) |
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2018:07:16 11:06:23+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 9 |
| CodeSize: | 48128 |
| InitializedDataSize: | 631808 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x4aac |
| OSVersion: | 5 |
| ImageVersion: | - |
| SubsystemVersion: | 5 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.3.127.1 |
| ProductVersionNumber: | 1.3.127.1 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Windows NT 32-bit |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Unicode |
| CompanyName: | Dropbox, Inc. |
| FileDescription: | Dropbox Update Setup |
| FileVersion: | 1.3.127.1 |
| InternalName: | Dropbox Update Setup |
| LegalCopyright: | Copyright: Dropbox, Inc. 2015 (Omaha Copyright Google Inc.) |
| OriginalFileName: | DropboxUpdateSetup.exe |
| ProductName: | Dropbox Update |
| ProductVersion: | 1.3.127.1 |
| LanguageId: | en |
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 16-Jul-2018 09:06:23 |
| Detected languages: |
|
| Debug artifacts: |
|
| CompanyName: | Dropbox, Inc. |
| FileDescription: | Dropbox Update Setup |
| FileVersion: | 1.3.127.1 |
| InternalName: | Dropbox Update Setup |
| LegalCopyright: | Copyright: Dropbox, Inc. 2015 (Omaha Copyright Google Inc.) |
| OriginalFilename: | DropboxUpdateSetup.exe |
| ProductName: | Dropbox Update |
| ProductVersion: | 1.3.127.1 |
| LanguageId: | en |
| 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: | 0x000000E8 |
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 5 |
| Time date stamp: | 16-Jul-2018 09:06:23 |
| 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 | 0x00001000 | 0x0000BAC2 | 0x0000BC00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.6715 |
.rdata | 0x0000D000 | 0x00002A62 | 0x00002C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.40517 |
.data | 0x00010000 | 0x0000191C | 0x00000E00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 2.47997 |
.rsrc | 0x00012000 | 0x00095368 | 0x00095400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.93852 |
.reloc | 0x000A8000 | 0x00001502 | 0x00001600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 3.82527 |
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.13392 | 756 | Latin 1 / Western European | UNKNOWN | RT_MANIFEST |
2 | 1.58427 | 5160 | Latin 1 / Western European | English - United States | RT_ICON |
3 | 1.32226 | 11560 | Latin 1 / Western European | English - United States | RT_ICON |
4 | 7.83684 | 7394 | Latin 1 / Western European | English - United States | RT_ICON |
101 | 2.49052 | 62 | Latin 1 / Western European | English - United States | RT_GROUP_ICON |
102 | 7.99971 | 572368 | Latin 1 / Western European | UNKNOWN | B |
1321 | 3.18214 | 540 | Latin 1 / Western European | Spanish - Spain (International sort) | RT_STRING |
ADVAPI32.dll |
KERNEL32.dll |
SHLWAPI.dll |
USER32.dll |
ole32.dll |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 676 | "C:\Program Files\Dropbox\Update\DropboxUpdate.exe" /ping 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-PGFwcCBhcHBpZD0ie0Q4OTY4RkYyLUUwQjEtNEExMy1BM0UyLUM5RjI5OTVGM0JDNn0iIHZlcnNpb249IiIgbmV4dHZlcnNpb249IjEuMy4xMjcuMSIgbGFuZz0iIiBicmFuZD0iIiBjbGllbnQ9IiI-PGV2ZW50IGV2ZW50dHlwZT0iMiIgZXZlbnRyZXN1bHQ9IjEiIGVycm9yY29kZT0iMCIgZXh0cmFjb2RlMT0iMCIvPjwvYXBwPjwvcmVxdWVzdD4 | C:\Program Files\Dropbox\Update\DropboxUpdate.exe | DropboxUpdate.exe | ||||||||||||
User: admin Company: Dropbox, Inc. Integrity Level: HIGH Description: Dropbox Update Exit code: 0 Version: 1.3.27.73 Modules
| |||||||||||||||
| 1076 | "C:\Users\admin\AppData\Local\Temp\DropboxInstaller.exe" | C:\Users\admin\AppData\Local\Temp\DropboxInstaller.exe | explorer.exe | ||||||||||||
User: admin Company: Dropbox, Inc. Integrity Level: MEDIUM Description: Dropbox Update Setup Exit code: 0 Version: 1.3.127.1 Modules
| |||||||||||||||
| 1496 | "C:\Program Files\Dropbox\Update\DropboxUpdate.exe" /regserver | C:\Program Files\Dropbox\Update\DropboxUpdate.exe | — | DropboxUpdate.exe | |||||||||||
User: admin Company: Dropbox, Inc. Integrity Level: HIGH Description: Dropbox Update Exit code: 0 Version: 1.3.27.73 Modules
| |||||||||||||||
| 2156 | C:\Windows\system32\msiexec.exe /V | C:\Windows\system32\msiexec.exe | services.exe | ||||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows® installer Exit code: 0 Version: 5.0.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2252 | "C:\Program Files\Dropbox\Update\DropboxUpdate.exe" /regsvc | C:\Program Files\Dropbox\Update\DropboxUpdate.exe | — | DropboxUpdate.exe | |||||||||||
User: admin Company: Dropbox, Inc. Integrity Level: HIGH Description: Dropbox Update Exit code: 0 Version: 1.3.27.73 Modules
| |||||||||||||||
| 2680 | "C:\Program Files\Dropbox\Update\DropboxUpdate.exe" /svc | C:\Program Files\Dropbox\Update\DropboxUpdate.exe | services.exe | ||||||||||||
User: SYSTEM Company: Dropbox, Inc. Integrity Level: SYSTEM Description: Dropbox Update Exit code: 0 Version: 1.3.27.73 Modules
| |||||||||||||||
| 3572 | C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\DropboxUpdate.exe /installsource taggedmi /install "appguid={CC46080E-4C33-4981-859A-BBA2F780F31E}&appname=Dropbox&needsadmin=Prefers&dropbox_data=eyJUQUdTIjoiZUp5clZpcE9MUzdPek0tTHoweFJzbEl3TWpZM056QTBON1UwTXpJMU1iY3dNYkswc0xRd01EWXdNVFF5TWJRd3REUXlNRFkxTlRDdUJRQ3FUdzI3QE1FVEEifQ" | C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\DropboxUpdate.exe | — | DropboxInstaller.exe | |||||||||||
User: admin Company: Dropbox, Inc. Integrity Level: MEDIUM Description: Dropbox Update Exit code: 0 Version: 1.3.27.73 Modules
| |||||||||||||||
| 3600 | "C:\Program Files\Dropbox\Update\DropboxUpdate.exe" /handoff "appguid={CC46080E-4C33-4981-859A-BBA2F780F31E}&appname=Dropbox&needsadmin=Prefers&dropbox_data=eyJUQUdTIjoiZUp5clZpcE9MUzdPek0tTHoweFJzbEl3TWpZM056QTBON1UwTXpJMU1iY3dNYkswc0xRd01EWXdNVFF5TWJRd3REUXlNRFkxTlRDdUJRQ3FUdzI3QE1FVEEifQ&nolaunch=0" /installsource taggedmi /sessionid "{8E61C658-A0B6-4C64-BC32-63F7209F5F9F}" | C:\Program Files\Dropbox\Update\DropboxUpdate.exe | — | DropboxUpdate.exe | |||||||||||
User: admin Company: Dropbox, Inc. Integrity Level: HIGH Description: Dropbox Update Exit code: 0 Version: 1.3.27.73 Modules
| |||||||||||||||
| 3824 | "C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\DropboxUpdate.exe" /installsource taggedmi /install "appguid={CC46080E-4C33-4981-859A-BBA2F780F31E}&appname=Dropbox&needsadmin=Prefers&dropbox_data=eyJUQUdTIjoiZUp5clZpcE9MUzdPek0tTHoweFJzbEl3TWpZM056QTBON1UwTXpJMU1iY3dNYkswc0xRd01EWXdNVFF5TWJRd3REUXlNRFkxTlRDdUJRQ3FUdzI3QE1FVEEifQ" /installelevated | C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\DropboxUpdate.exe | DropboxUpdate.exe | ||||||||||||
User: admin Company: Dropbox, Inc. Integrity Level: HIGH Description: Dropbox Update Exit code: 0 Version: 1.3.27.73 Modules
| |||||||||||||||
| (PID) Process: | (3824) DropboxUpdate.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2252) DropboxUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID\{96D1EED3-701E-4FE5-B996-A543A8465897} |
| Operation: | write | Name: | |
Value: ServiceModule | |||
| (PID) Process: | (2252) DropboxUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID\DropboxUpdate.exe |
| Operation: | write | Name: | AppID |
Value: {96D1EED3-701E-4FE5-B996-A543A8465897} | |||
| (PID) Process: | (2252) DropboxUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID\{96D1EED3-701E-4FE5-B996-A543A8465897} |
| Operation: | write | Name: | LocalService |
Value: dbupdate | |||
| (PID) Process: | (2252) DropboxUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID\{96D1EED3-701E-4FE5-B996-A543A8465897} |
| Operation: | write | Name: | ServiceParameters |
Value: /comsvc | |||
| (PID) Process: | (2252) DropboxUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Classes\DropboxUpdate.Update3COMClassService.1.0 |
| Operation: | write | Name: | |
Value: Update3COMClass | |||
| (PID) Process: | (2252) DropboxUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Classes\DropboxUpdate.Update3COMClassService.1.0\CLSID |
| Operation: | write | Name: | |
Value: {96D1EED3-701E-4FE5-B996-A543A8465897} | |||
| (PID) Process: | (2252) DropboxUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Classes\DropboxUpdate.Update3COMClassService |
| Operation: | write | Name: | |
Value: Update3COMClass | |||
| (PID) Process: | (3824) DropboxUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\DropboxUpdate\Update |
| Operation: | write | Name: | path |
Value: C:\Program Files\Dropbox\Update\DropboxUpdate.exe | |||
| (PID) Process: | (3824) DropboxUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\DropboxUpdate\Update\Clients\{D8968FF2-E0B1-4A13-A3E2-C9F2995F3BC6} |
| Operation: | write | Name: | pv |
Value: 1.3.127.1 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1076 | DropboxInstaller.exe | C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\DropboxUpdateOnDemand.exe | executable | |
MD5:— | SHA256:— | |||
| 1076 | DropboxInstaller.exe | C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\DropboxUpdateHelper.msi | executable | |
MD5:— | SHA256:— | |||
| 1076 | DropboxInstaller.exe | C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\DropboxUpdateBroker.exe | executable | |
MD5:— | SHA256:— | |||
| 1076 | DropboxInstaller.exe | C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\psuser.dll | executable | |
MD5:— | SHA256:— | |||
| 1076 | DropboxInstaller.exe | C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\npDropboxUpdate3.dll | executable | |
MD5:— | SHA256:— | |||
| 1076 | DropboxInstaller.exe | C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\DropboxCrashHandler.exe | executable | |
MD5:— | SHA256:— | |||
| 1076 | DropboxInstaller.exe | C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\goopdateres_de.dll | executable | |
MD5:— | SHA256:— | |||
| 1076 | DropboxInstaller.exe | C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\goopdate.dll | executable | |
MD5:— | SHA256:— | |||
| 1076 | DropboxInstaller.exe | C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\goopdateres_es.dll | executable | |
MD5:— | SHA256:— | |||
| 1076 | DropboxInstaller.exe | C:\Users\admin\AppData\Local\Temp\GUM5AD5.tmp\goopdateres_fr.dll | executable | |
MD5:— | SHA256:— | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
676 | DropboxUpdate.exe | GET | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTPJvUY%2Bsl%2Bj4yzQuAcL2oQno5fCgQUUWj%2FkK8CB3U8zNllZGKiErhZcjsCEAP4cVEQS8cwnZzLED4tzxA%3D | US | der | 471 b | whitelisted |
676 | DropboxUpdate.exe | GET | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTfqhLjKLEJQZPin0KCzkdAQpVYowQUsT7DaQP4v0cB1JgmGggC72NkK8MCEATh56TcXPLzbcArQrhdFZ8%3D | US | der | 471 b | whitelisted |
2680 | DropboxUpdate.exe | GET | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTPJvUY%2Bsl%2Bj4yzQuAcL2oQno5fCgQUUWj%2FkK8CB3U8zNllZGKiErhZcjsCEAP4cVEQS8cwnZzLED4tzxA%3D | US | der | 471 b | whitelisted |
2680 | DropboxUpdate.exe | GET | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTfqhLjKLEJQZPin0KCzkdAQpVYowQUsT7DaQP4v0cB1JgmGggC72NkK8MCEATh56TcXPLzbcArQrhdFZ8%3D | US | der | 471 b | whitelisted |
1056 | svchost.exe | GET | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEA8sEMlbBsCTf7jUSfg%2BhWk%3D | US | der | 471 b | whitelisted |
676 | DropboxUpdate.exe | GET | 200 | 104.16.238.184:80 | http://cacerts.digicert.com/DigiCertSHA2HighAssuranceServerCA.crt | US | der | 1.18 Kb | whitelisted |
2680 | DropboxUpdate.exe | GET | 200 | 104.16.238.184:80 | http://cacerts.digicert.com/DigiCertSHA2HighAssuranceServerCA.crt | US | der | 1.18 Kb | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
676 | DropboxUpdate.exe | 162.125.66.3:443 | client.dropbox.com | Dropbox, Inc. | DE | shared |
676 | DropboxUpdate.exe | 104.16.238.184:80 | cacerts.digicert.com | Cloudflare Inc | US | shared |
2680 | DropboxUpdate.exe | 162.125.66.3:443 | client.dropbox.com | Dropbox, Inc. | DE | shared |
676 | DropboxUpdate.exe | 93.184.220.29:80 | ocsp.digicert.com | MCI Communications Services, Inc. d/b/a Verizon Business | US | whitelisted |
2680 | DropboxUpdate.exe | 104.16.238.184:80 | cacerts.digicert.com | Cloudflare Inc | US | shared |
2680 | DropboxUpdate.exe | 93.184.220.29:80 | ocsp.digicert.com | MCI Communications Services, Inc. d/b/a Verizon Business | US | whitelisted |
1056 | svchost.exe | 93.184.220.29:80 | ocsp.digicert.com | MCI Communications Services, Inc. d/b/a Verizon Business | US | whitelisted |
— | — | 52.222.173.76:443 | clientupdates.dropboxstatic.com | Amazon.com, Inc. | US | unknown |
Domain | IP | Reputation |
|---|---|---|
client.dropbox.com |
| suspicious |
cacerts.digicert.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
clientupdates.dropboxstatic.com |
| unknown |