| File name: | SplashtopSOS.exe |
| Full analysis: | https://app.any.run/tasks/bfd0fdfc-28da-4b6b-895d-d88ae8e55355 |
| Verdict: | Malicious activity |
| Analysis date: | October 29, 2019, 23:53:01 |
| 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, InstallShield self-extracting archive |
| MD5: | 4A8E6091B2D23695EAFCF9B70ABEF28C |
| SHA1: | 3AD8985525B7AA59F4FDD4972CDD804A7B9DA4A9 |
| SHA256: | AB591F9AAEE0C567F4BC664444C9F1E271356957EF914858585FFD104C0EAB8B |
| SSDEEP: | 196608:14aIFTS4X9oZyAsqQ5AHEy0pj0PChtd5X6MHKWE3CQH52Mli:1xI/sVU5AHEN4Petd5X6cKtCMY |
MALICIOUS
Uses Task Scheduler to run other applications
- cmd.exe (PID: 392)
- cmd.exe (PID: 2392)
- cmd.exe (PID: 964)
- cmd.exe (PID: 516)
Loads the Task Scheduler COM API
- schtasks.exe (PID: 2088)
- schtasks.exe (PID: 2396)
- schtasks.exe (PID: 1560)
- schtasks.exe (PID: 956)
SUSPICIOUS
Application launched itself
- SplashtopSOS.exe (PID: 2440)
Starts CMD.EXE for commands execution
- SplashtopSOS.exe (PID: 2364)
Creates files in the Windows directory
- expand.exe (PID: 1448)
Executable content was dropped or overwritten
- expand.exe (PID: 1448)
- SplashtopSOS.exe (PID: 2364)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .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) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2019:10:04 05:01:17+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 9 |
| CodeSize: | 200704 |
| InitializedDataSize: | 277504 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x13c25 |
| OSVersion: | 5 |
| ImageVersion: | - |
| SubsystemVersion: | 5 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 3.34.9.4662 |
| ProductVersionNumber: | 3.3.4.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Windows, Latin1 |
| CompanyName: | Splashtop Inc. |
| FileDescription: | Splashtop® SOS |
| FileVersion: | 3.34.9.4662 |
| LegalCopyright: | Copyright © Splashtop Inc. All Rights Reserved. |
| ProductName: | Splashtop® SOS |
| ProductVersion: | 3.3.4.0 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 04-Oct-2019 03:01:17 |
| Detected languages: |
|
| Debug artifacts: |
|
| CompanyName: | Splashtop Inc. |
| FileDescription: | Splashtop® SOS |
| FileVersion: | 3.34.9.4662 |
| LegalCopyright: | Copyright © Splashtop Inc. All Rights Reserved. |
| ProductName: | Splashtop® SOS |
| ProductVersion: | 3.3.4.0 |
DOS Header
| 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 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 4 |
| Time date stamp: | 04-Oct-2019 03:01:17 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00001000 | 0x00030F10 | 0x00031000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.54114 |
.rdata | 0x00032000 | 0x0000EF46 | 0x0000F000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.62552 |
.data | 0x00041000 | 0x00005FD8 | 0x00002400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 3.78312 |
.rsrc | 0x00047000 | 0x00032654 | 0x00032800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.04054 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.26086 | 809 | Latin 1 / Western European | English - United States | RT_MANIFEST |
2 | 3.12881 | 67624 | Latin 1 / Western European | Chinese - Taiwan | RT_ICON |
3 | 3.56603 | 38056 | Latin 1 / Western European | Chinese - Taiwan | RT_ICON |
4 | 3.58214 | 16936 | Latin 1 / Western European | Chinese - Taiwan | RT_ICON |
5 | 3.90638 | 9640 | Latin 1 / Western European | Chinese - Taiwan | RT_ICON |
6 | 4.12706 | 6760 | Latin 1 / Western European | Chinese - Taiwan | RT_ICON |
7 | 4.23815 | 4264 | Latin 1 / Western European | Chinese - Taiwan | RT_ICON |
8 | 5.06437 | 1128 | Latin 1 / Western European | Chinese - Taiwan | RT_ICON |
9 | 3.17402 | 726 | Latin 1 / Western European | English - United States | RT_STRING |
10 | 2.74274 | 180 | Latin 1 / Western European | Chinese - Taiwan | RT_CURSOR |
Imports
ADVAPI32.dll |
COMDLG32.dll |
GDI32.dll |
KERNEL32.dll |
OLEACC.dll (delay-loaded) |
OLEAUT32.dll |
SHELL32.dll |
SHLWAPI.dll |
USER32.dll |
USERENV.dll |
Total processes
54
Monitored processes
12
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 392 | "C:\Windows\System32\cmd.exe" /c schtasks /create /xml ASOS.xml /ru "system" /tn ASOS1 | C:\Windows\System32\cmd.exe | — | SplashtopSOS.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
| |||||||||||||||
| 516 | "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn ASOS1 | C:\Windows\System32\cmd.exe | — | SplashtopSOS.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
| |||||||||||||||
| 956 | schtasks /delete /f /tn ASOS1 | C:\Windows\system32\schtasks.exe | — | cmd.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
| |||||||||||||||
| 964 | "C:\Windows\System32\cmd.exe" /c schtasks /run /tn ASOS1 | C:\Windows\System32\cmd.exe | — | SplashtopSOS.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
| |||||||||||||||
| 1448 | expand *.cab /f:* .\ | C:\Windows\system32\expand.exe | cmd.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: LZ Expansion Utility Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1560 | schtasks /run /tn ASOS1 | C:\Windows\system32\schtasks.exe | — | cmd.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
| |||||||||||||||
| 2088 | schtasks /change /tn ASOS1 /ru "system" /tr "'C:\Users\admin\AppData\Local\Temp\unpacksos\1\\Launcher.exe' SRManagerSOS.exe 1 " | C:\Windows\system32\schtasks.exe | — | cmd.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
| |||||||||||||||
| 2364 | "C:\Users\admin\AppData\Local\Temp\SplashtopSOS.exe" "C:\Users\admin\AppData\Local\Temp\SplashtopSOS.exe" | C:\Users\admin\AppData\Local\Temp\SplashtopSOS.exe | SplashtopSOS.exe | ||||||||||||
User: admin Company: Splashtop Inc. Integrity Level: HIGH Description: Splashtop® SOS Exit code: 0 Version: 3.34.9.4662 Modules
| |||||||||||||||
| 2392 | "C:\Windows\System32\cmd.exe" /c schtasks /change /tn ASOS1 /ru "system" /tr "'C:\Users\admin\AppData\Local\Temp\unpacksos\1\\Launcher.exe' SRManagerSOS.exe 1 " | C:\Windows\System32\cmd.exe | — | SplashtopSOS.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
| |||||||||||||||
| 2396 | schtasks /create /xml ASOS.xml /ru "system" /tn ASOS1 | C:\Windows\system32\schtasks.exe | — | cmd.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
| |||||||||||||||
Total events
457
Read events
445
Write events
11
Delete events
1
Modification events
| (PID) Process: | (2440) SplashtopSOS.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2440) SplashtopSOS.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2364) SplashtopSOS.exe | Key: | HKEY_CURRENT_USER\Software\Splashtop Inc.\Splashtop Remote Server SOS_1 |
| Operation: | write | Name: | ImagePath |
Value: C:\Users\admin\AppData\Local\Temp\SplashtopSOS.exe | |||
| (PID) Process: | (2364) SplashtopSOS.exe | Key: | HKEY_CURRENT_USER\Software\Splashtop Inc.\Splashtop Remote Server SOS_1 |
| Operation: | write | Name: | DesktopPath |
Value: C:\Users\admin\Desktop\SOS.exe | |||
| (PID) Process: | (2364) SplashtopSOS.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2364) SplashtopSOS.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2364) SplashtopSOS.exe | Key: | HKEY_CURRENT_USER\Software\Splashtop Inc.\Splashtop Remote Server SOS_1 |
| Operation: | write | Name: | IsSystemUser |
Value: 1 | |||
| (PID) Process: | (2364) SplashtopSOS.exe | Key: | HKEY_CURRENT_USER\Software\Splashtop Inc.\Splashtop Remote Server SOS_1 |
| Operation: | delete value | Name: | IsSystemUser |
Value: 1 | |||
Executable files
18
Suspicious files
0
Text files
52
Unknown types
2
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2364 | SplashtopSOS.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\streamer1.cab | — | |
MD5:— | SHA256:— | |||
| 1448 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\aa8e7374de0b42408e1c0e1419368fba.tmp | — | |
MD5:— | SHA256:— | |||
| 1448 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\d8e060373d0cf14cb508f2d4eaf9d8ab.tmp | — | |
MD5:— | SHA256:— | |||
| 1448 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\37e305b76e0d1b46bae06b2ae6571fce.tmp | — | |
MD5:— | SHA256:— | |||
| 1448 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\e887bc8a4e15e44190bf4d095b8a743e.tmp | — | |
MD5:— | SHA256:— | |||
| 1448 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\208c50583b9d494f95325768f5079a8c.tmp | — | |
MD5:— | SHA256:— | |||
| 1448 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\dec715047b68444fb620c7f15a208858.tmp | — | |
MD5:— | SHA256:— | |||
| 1448 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\01c7d4fe429205468ebddd63e6218ffd.tmp | — | |
MD5:— | SHA256:— | |||
| 1448 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\55eaca9b0b666a449e809acda5c5ff03.tmp | — | |
MD5:— | SHA256:— | |||
| 1448 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\356bc5a54c84b3409eb0d8b3c81cf48e.tmp | — | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
0
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
DNS requests
Threats
Process | Message |
|---|---|
SplashtopSOS.exe | [2364]2019-10-29 23:53:22 [CUtility::OSInfo] OS 6.1(7601) Service Pack 1 x64:0 (Last=0) |
SplashtopSOS.exe | [2364]2019-10-29 23:53:22 [CUnPack::FindHeader] Name:C:\Users\admin\AppData\Local\Temp\SplashtopSOS.exe (Last=0) |
SplashtopSOS.exe | [2364]2019-10-29 23:53:22 [CUnPack::FindHeader] Sign Size:6096 (Last=0) |
SplashtopSOS.exe | [2364]2019-10-29 23:53:22 [CUnPack::FindHeader] Header offset:479232 (Last=183) |
SplashtopSOS.exe | [2364]2019-10-29 23:53:22 [CUnPack::UnPackFiles] FreeSpace:238249189376 FileSize:7226558 (Last=0) |
SplashtopSOS.exe | [2364]2019-10-29 23:53:22 [CUnPack::UnPackFiles] (1/1)UnPack file name:C:\Users\admin\AppData\Local\Temp\unpacksos\1\streamer1.cab (7226558) (Last=0) |
SplashtopSOS.exe | [2364]2019-10-29 23:53:22 [CUnPack::UnPackFiles] UnPack count:1 len:7226558 File:(null) (Last=0) |
SplashtopSOS.exe | [2364]2019-10-29 23:53:22 [CUnPack::UnPackFiles] UnPack total 1 files. (Last=183) |
SplashtopSOS.exe | [2364]2019-10-29 23:53:22 [CUnPackFileApp::ExecuteCommand] succ wait pid:604 (Last=0) |
SplashtopSOS.exe | [2364]2019-10-29 23:53:23 [CUnPackFileApp::ExecuteCommand] pid:604 finish ecode:0 (Last=0) |