| File name: | AmazonSOS.exe |
| Full analysis: | https://app.any.run/tasks/56d26d6b-7dd4-44e7-8860-fc1dee07daa9 |
| Verdict: | Malicious activity |
| Analysis date: | December 28, 2019, 22:36:23 |
| 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
Loads the Task Scheduler COM API
- schtasks.exe (PID: 2340)
- schtasks.exe (PID: 3060)
- schtasks.exe (PID: 4048)
- schtasks.exe (PID: 976)
Uses Task Scheduler to run other applications
- cmd.exe (PID: 3424)
- cmd.exe (PID: 2080)
- cmd.exe (PID: 1752)
- cmd.exe (PID: 1316)
Loads dropped or rewritten executable
- SRManagerSOS.exe (PID: 1756)
- SRFeatureSOS.exe (PID: 3248)
- SRServerSOS.exe (PID: 2112)
Application was dropped or rewritten from another process
- Launcher.exe (PID: 944)
- SRManagerSOS.exe (PID: 1756)
- SRFeatureSOS.exe (PID: 3248)
- SRUtilitySOS.exe (PID: 3156)
- SRServerSOS.exe (PID: 2112)
SUSPICIOUS
Application launched itself
- AmazonSOS.exe (PID: 1800)
Starts CMD.EXE for commands execution
- AmazonSOS.exe (PID: 2200)
Creates files in the Windows directory
- expand.exe (PID: 1268)
- SRManagerSOS.exe (PID: 1756)
Executed via Task Scheduler
- Launcher.exe (PID: 944)
Executable content was dropped or overwritten
- expand.exe (PID: 1268)
- AmazonSOS.exe (PID: 2200)
Removes files from Windows directory
- SRManagerSOS.exe (PID: 1756)
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
61
Monitored processes
17
Malicious processes
5
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 944 | C:\Users\admin\AppData\Local\Temp\unpacksos\1\\Launcher.exe SRManagerSOS.exe 1 | C:\Users\admin\AppData\Local\Temp\unpacksos\1\Launcher.exe | taskeng.exe | ||||||||||||
User: SYSTEM Company: Splashtop Inc. Integrity Level: SYSTEM Description: Launcher Exit code: 0 Version: 1, 0, 0, 0 Modules
| |||||||||||||||
| 976 | 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
| |||||||||||||||
| 1268 | 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
| |||||||||||||||
| 1316 | "C:\Windows\System32\cmd.exe" /c schtasks /run /tn ASOS1 | C:\Windows\System32\cmd.exe | — | AmazonSOS.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
| |||||||||||||||
| 1752 | "C:\Windows\System32\cmd.exe" /c schtasks /create /xml ASOS.xml /ru "system" /tn ASOS1 | C:\Windows\System32\cmd.exe | — | AmazonSOS.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
| |||||||||||||||
| 1756 | "SRManagerSOS.exe" | C:\Users\admin\AppData\Local\Temp\unpacksos\1\SRManagerSOS.exe | Launcher.exe | ||||||||||||
User: SYSTEM Company: Splashtop Inc. Integrity Level: SYSTEM Description: Splashtop® Streamer SRManager Exit code: 0 Version: 3.34.9.4662 Modules
| |||||||||||||||
| 1800 | "C:\Users\admin\AppData\Local\Temp\AmazonSOS.exe" | C:\Users\admin\AppData\Local\Temp\AmazonSOS.exe | — | explorer.exe | |||||||||||
User: admin Company: Splashtop Inc. Integrity Level: MEDIUM Description: Splashtop® SOS Exit code: 0 Version: 3.34.9.4662 Modules
| |||||||||||||||
| 2080 | "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn ASOS1 | C:\Windows\System32\cmd.exe | — | AmazonSOS.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
| |||||||||||||||
| 2112 | SRServerSOS.exe -s | C:\Users\admin\AppData\Local\Temp\unpacksos\1\SRServerSOS.exe | — | SRManagerSOS.exe | |||||||||||
User: SYSTEM Company: Splashtop Inc. Integrity Level: SYSTEM Description: Splashtop® Attended Support Streamer Exit code: 0 Version: 3.34.9.4662 Modules
| |||||||||||||||
| 2200 | "C:\Users\admin\AppData\Local\Temp\AmazonSOS.exe" "C:\Users\admin\AppData\Local\Temp\AmazonSOS.exe" | C:\Users\admin\AppData\Local\Temp\AmazonSOS.exe | AmazonSOS.exe | ||||||||||||
User: admin Company: Splashtop Inc. Integrity Level: HIGH Description: Splashtop® SOS Exit code: 0 Version: 3.34.9.4662 Modules
| |||||||||||||||
Total events
532
Read events
493
Write events
39
Delete events
0
Modification events
| (PID) Process: | (1800) AmazonSOS.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (1800) AmazonSOS.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2200) AmazonSOS.exe | Key: | HKEY_CURRENT_USER\Software\Splashtop Inc.\Splashtop Remote Server SOS_1 |
| Operation: | write | Name: | ImagePath |
Value: C:\Users\admin\AppData\Local\Temp\AmazonSOS.exe | |||
| (PID) Process: | (2200) AmazonSOS.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: | (2200) AmazonSOS.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2200) AmazonSOS.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2200) AmazonSOS.exe | Key: | HKEY_CURRENT_USER\Software\Splashtop Inc.\Splashtop Remote Server SOS_1 |
| Operation: | write | Name: | IsSystemUser |
Value: 1 | |||
| (PID) Process: | (1756) SRManagerSOS.exe | Key: | HKEY_USERS\.DEFAULT\Software\Classes\Local Settings\MuiCache\12B\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2112) SRServerSOS.exe | Key: | HKEY_USERS\S-1-5-21-1302019708-1500728564-335382590-1000\Software\Splashtop Inc.\Splashtop Remote Server SOS |
| Operation: | write | Name: | AutoMute |
Value: 2 | |||
| (PID) Process: | (2112) SRServerSOS.exe | Key: | HKEY_USERS\S-1-5-21-1302019708-1500728564-335382590-1000\Software\Splashtop Inc.\Splashtop Remote Server SOS |
| Operation: | write | Name: | CloudProxyEnable |
Value: 0 | |||
Executable files
18
Suspicious files
4
Text files
29
Unknown types
4
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2200 | AmazonSOS.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\streamer1.cab | — | |
MD5:— | SHA256:— | |||
| 1268 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\18e114373d0c944cb50897d4aaf8acaa.tmp | — | |
MD5:— | SHA256:— | |||
| 1268 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\f7e271b76e0d7e46bae00e2aa6566bcf.tmp | — | |
MD5:— | SHA256:— | |||
| 1268 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\2886c88a4e15814190bf28091b8b003f.tmp | — | |
MD5:— | SHA256:— | |||
| 1268 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\e08d24583b9d2c4f95323268b506ee8d.tmp | — | |
MD5:— | SHA256:— | |||
| 1268 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\1ec661047b68214fb620a2f11a21fc59.tmp | — | |
MD5:— | SHA256:— | |||
| 1268 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\c1c6a0fe429260468ebdb863a620fbfc.tmp | — | |
MD5:— | SHA256:— | |||
| 1268 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\95ebbe9b0b660f449e80ffcde5c48b02.tmp | — | |
MD5:— | SHA256:— | |||
| 1268 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\1aedad9cb2bfed4f9a5db7381a38d5a3.tmp | — | |
MD5:— | SHA256:— | |||
| 1268 | expand.exe | C:\Users\admin\AppData\Local\Temp\unpacksos\1\$dpx$.tmp\e3186eb3ef9d2742b4f5702ecab76c93.tmp | — | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
10
TCP/UDP connections
13
DNS requests
6
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1756 | SRManagerSOS.exe | GET | — | 13.35.253.98:80 | http://st2-v3-dc.splashtop.com/api/fulong | US | — | — | whitelisted |
1756 | SRManagerSOS.exe | GET | 403 | 13.35.253.98:80 | http://st2-v3-dc.splashtop.com/api/fulong | US | xml | 243 b | whitelisted |
1756 | SRManagerSOS.exe | GET | 403 | 13.35.253.98:80 | http://st2-v3-dc.splashtop.com/api/fulong | US | xml | 243 b | whitelisted |
1756 | SRManagerSOS.exe | GET | 403 | 13.35.253.98:80 | http://st2-v3-dc.splashtop.com/api/fulong | US | xml | 243 b | whitelisted |
1756 | SRManagerSOS.exe | GET | 403 | 13.35.253.98:80 | http://st2-v3-dc.splashtop.com/api/fulong | US | xml | 243 b | whitelisted |
1756 | SRManagerSOS.exe | GET | 200 | 23.37.43.27:80 | http://s2.symcb.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBS56bKHAoUD%2BOyl%2B0LhPg9JxyQm4gQUf9Nlp8Ld7LvwMAnzQzn6Aq8zMTMCED141%2Fl2SWCyYX308B7Khio%3D | NL | der | 1.71 Kb | whitelisted |
1756 | SRManagerSOS.exe | GET | 403 | 13.35.253.98:80 | http://st2-v3-dc.splashtop.com/api/fulong | US | xml | 243 b | whitelisted |
1756 | SRManagerSOS.exe | GET | 403 | 13.35.253.98:80 | http://st2-v3-dc.splashtop.com/api/fulong | US | xml | 243 b | whitelisted |
1756 | SRManagerSOS.exe | GET | 200 | 23.37.43.27:80 | http://sv.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQe6LNDJdqx%2BJOp7hVgTeaGFJ%2FCQgQUljtT8Hkzl699g%2B8uK8zKt4YecmYCEHhvSYT5N0gvTTb3x7RJTGs%3D | NL | der | 1.57 Kb | shared |
— | — | GET | 403 | 13.35.253.98:80 | http://st2-v3-dc.splashtop.com/api/fulong | US | xml | 243 b | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
1756 | SRManagerSOS.exe | 23.37.43.27:80 | s2.symcb.com | Akamai Technologies, Inc. | NL | whitelisted |
1756 | SRManagerSOS.exe | 13.35.253.98:80 | st2-v3-dc.splashtop.com | — | US | suspicious |
1756 | SRManagerSOS.exe | 35.156.77.63:443 | 35-156-77-63.relay.splashtop.com | Amazon.com, Inc. | DE | unknown |
1756 | SRManagerSOS.exe | 52.10.224.60:443 | st-v3-sos-srs-win-3340.api.splashtop.com | Amazon.com, Inc. | US | unknown |
1756 | SRManagerSOS.exe | 54.186.76.173:443 | st-relay-v3-sos-srs-win-3340.api.splashtop.com | Amazon.com, Inc. | US | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
s2.symcb.com |
| whitelisted |
sv.symcd.com |
| shared |
st-v3-sos-srs-win-3340.api.splashtop.com |
| unknown |
st2-v3-dc.splashtop.com |
| whitelisted |
st-relay-v3-sos-srs-win-3340.api.splashtop.com |
| unknown |
35-156-77-63.relay.splashtop.com |
| unknown |
Threats
Process | Message |
|---|---|
AmazonSOS.exe | [2200]2019-12-28 22:36:52 [CUnPack::FindHeader] Header offset:479232 (Last=183) |
AmazonSOS.exe | [2200]2019-12-28 22:36:52 [CUnPack::FindHeader] Sign Size:6096 (Last=0) |
AmazonSOS.exe | [2200]2019-12-28 22:36:52 [CUtility::OSInfo] OS 6.1(7601) Service Pack 1 x64:0 (Last=0) |
AmazonSOS.exe | [2200]2019-12-28 22:36:52 [CUnPack::UnPackFiles] FreeSpace:238249160704 FileSize:7226558 (Last=0) |
AmazonSOS.exe | [2200]2019-12-28 22:36:52 [CUnPack::FindHeader] Name:C:\Users\admin\AppData\Local\Temp\AmazonSOS.exe (Last=0) |
AmazonSOS.exe | [2200]2019-12-28 22:36:52 [CUnPack::UnPackFiles] (1/1)UnPack file name:C:\Users\admin\AppData\Local\Temp\unpacksos\1\streamer1.cab (7226558) (Last=0) |
AmazonSOS.exe | [2200]2019-12-28 22:36:52 [CUnPack::UnPackFiles] UnPack total 1 files. (Last=183) |
AmazonSOS.exe | [2200]2019-12-28 22:36:52 [CUnPack::UnPackFiles] UnPack count:1 len:7226558 File:(null) (Last=0) |
AmazonSOS.exe | [2200]2019-12-28 22:36:52 [CUnPackFileApp::ExecuteCommand] succ wait pid:604 (Last=0) |
AmazonSOS.exe | [2200]2019-12-28 22:36:53 [CUnPackFileApp::ExecuteCommand] succ wait pid:616 (Last=0) |