| File name: | NXiSAS.exe |
| Full analysis: | https://app.any.run/tasks/90f369b0-6dbc-49d1-a1fe-fe017ec0ae8b |
| Verdict: | Malicious activity |
| Analysis date: | January 16, 2020, 04:21:27 |
| 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, Nullsoft Installer self-extracting archive |
| MD5: | B90283EAE95755C7C417B676260C865B |
| SHA1: | FCBCD6CFB012E38B2045AF476904027339F7BC89 |
| SHA256: | 540182356428482FCBC2A956EE8B5CEFB45F3DF36E146B842F4C9EF32BBD2424 |
| SSDEEP: | 196608:6I055advY/YuwH1/hgXhfUjT9X2lJpjIwBPvQApae1HbnD0JKTDxOKZ:6I055IC0VJglUjZX6jfBPLpaedbnQJKP |
MALICIOUS
Loads dropped or rewritten executable
- NXiSAS.exe (PID: 3984)
- iSASWebLauncher.exe (PID: 2572)
- UI0Detect.exe (PID: 2388)
Application was dropped or rewritten from another process
- iSASWebLauncher.exe (PID: 2572)
SUSPICIOUS
Executable content was dropped or overwritten
- NXiSAS.exe (PID: 3984)
- iSASWebLauncher.exe (PID: 2572)
Executed as Windows Service
- iSASWebLauncher.exe (PID: 2572)
- UI0Detect.exe (PID: 2388)
Creates a software uninstall entry
- NXiSAS.exe (PID: 3984)
Creates files in the program directory
- NXiSAS.exe (PID: 3984)
- iSASWebLauncher.exe (PID: 2572)
Application launched itself
- UI0Detect.exe (PID: 2388)
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: | 2018:01:30 04:57:41+01:00 |
| PEType: | PE32 |
| LinkerVersion: | 6 |
| CodeSize: | 26112 |
| InitializedDataSize: | 141824 |
| UninitializedDataSize: | 2048 |
| EntryPoint: | 0x34a5 |
| OSVersion: | 4 |
| ImageVersion: | 6 |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 2019.1.17.0 |
| ProductVersionNumber: | 2019.1.17.0 |
| FileFlagsMask: | 0x0000 |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Korean |
| CharacterSet: | Windows, Korea (Shift - KSC 5601) |
| CompanyName: | Coocon Corp. |
| FileDescription: | https://www.coocon.net |
| FileVersion: | 2019.1.17.0 |
| InternalName: | NXISAS |
| LegalCopyright: | - |
| ProductName: | NXISAS |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 30-Jan-2018 03:57:41 |
| Detected languages: |
|
| CompanyName: | Coocon Corp. |
| FileDescription: | https://www.coocon.net |
| FileVersion: | 2019.1.17.0 |
| InternalName: | NXISAS |
| LegalCopyright: | - |
| ProductName: | NXISAS |
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: | 0x000000D8 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 5 |
| Time date stamp: | 30-Jan-2018 03:57:41 |
| 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 | 0x00006409 | 0x00006600 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.41622 |
.rdata | 0x00008000 | 0x0000138E | 0x00001400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.14383 |
.data | 0x0000A000 | 0x00020358 | 0x00000600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 4.0044 |
.ndata | 0x0002B000 | 0x00017000 | 0x00000000 | IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.rsrc | 0x00042000 | 0x00006780 | 0x00006800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 3.9489 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.28813 | 1070 | UNKNOWN | English - United States | RT_MANIFEST |
2 | 3.0275 | 4264 | UNKNOWN | English - United States | RT_ICON |
3 | 2.64776 | 2216 | UNKNOWN | English - United States | RT_ICON |
4 | 0 | 1384 | UNKNOWN | English - United States | RT_ICON |
5 | 0 | 1128 | UNKNOWN | English - United States | RT_ICON |
6 | 0 | 744 | UNKNOWN | English - United States | RT_ICON |
7 | 0 | 296 | UNKNOWN | English - United States | RT_ICON |
103 | 3.10541 | 104 | UNKNOWN | English - United States | RT_GROUP_ICON |
105 | 2.73893 | 514 | UNKNOWN | English - United States | RT_DIALOG |
106 | 2.89384 | 248 | UNKNOWN | English - United States | RT_DIALOG |
Imports
ADVAPI32.dll |
COMCTL32.dll |
GDI32.dll |
KERNEL32.dll |
SHELL32.dll |
USER32.dll |
ole32.dll |
Total processes
41
Monitored processes
5
Malicious processes
2
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 444 | "C:\Users\admin\AppData\Local\Temp\NXiSAS.exe" | C:\Users\admin\AppData\Local\Temp\NXiSAS.exe | — | explorer.exe | |||||||||||
User: admin Company: Coocon Corp. Integrity Level: MEDIUM Description: https://www.coocon.net Exit code: 3221226540 Version: 2019.1.17.0 Modules
| |||||||||||||||
| 2388 | C:\Windows\system32\UI0Detect.exe | C:\Windows\system32\UI0Detect.exe | — | services.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Interactive services detection Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2448 | UI0Detect.exe 228 | C:\Windows\system32\UI0Detect.exe | — | UI0Detect.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Interactive services detection Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2572 | "C:\Program Files\Coocon\NXiSAS\iSASWebLauncher.exe" | C:\Program Files\Coocon\NXiSAS\iSASWebLauncher.exe | services.exe | ||||||||||||
User: SYSTEM Company: coocon Integrity Level: SYSTEM Exit code: 0 Version: 2018.4.6.0 Modules
| |||||||||||||||
| 3984 | "C:\Users\admin\AppData\Local\Temp\NXiSAS.exe" | C:\Users\admin\AppData\Local\Temp\NXiSAS.exe | explorer.exe | ||||||||||||
User: admin Company: Coocon Corp. Integrity Level: HIGH Description: https://www.coocon.net Exit code: 0 Version: 2019.1.17.0 Modules
| |||||||||||||||
Total events
378
Read events
363
Write events
15
Delete events
0
Modification events
| (PID) Process: | (3984) NXiSAS.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NXISAS |
| Operation: | write | Name: | DisplayName |
Value: NXISAS 2019.1.17.0 | |||
| (PID) Process: | (3984) NXiSAS.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NXISAS |
| Operation: | write | Name: | UninstallString |
Value: C:\Program Files\Coocon\NXiSAS\uninst.exe | |||
| (PID) Process: | (3984) NXiSAS.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NXISAS |
| Operation: | write | Name: | DisplayIcon |
Value: C:\Program Files\Coocon\NXiSAS\iSASNXWS.exe | |||
| (PID) Process: | (3984) NXiSAS.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NXISAS |
| Operation: | write | Name: | DisplayVersion |
Value: 2019.1.17.0 | |||
| (PID) Process: | (3984) NXiSAS.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NXISAS |
| Operation: | write | Name: | Publisher |
Value: Coocon Corp. | |||
| (PID) Process: | (2572) iSASWebLauncher.exe | Key: | HKEY_USERS\.DEFAULT\Software\Classes\Local Settings\MuiCache\12B\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
Executable files
23
Suspicious files
1
Text files
2
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3984 | NXiSAS.exe | C:\Program Files\Coocon\NXiSAS\iSASHSM.dll | executable | |
MD5:— | SHA256:— | |||
| 3984 | NXiSAS.exe | C:\Program Files\Coocon\NXiSAS\iSAS30.DLL | executable | |
MD5:— | SHA256:— | |||
| 3984 | NXiSAS.exe | C:\Program Files\Coocon\NXiSAS\iSASWebLauncher.exe | executable | |
MD5:— | SHA256:— | |||
| 3984 | NXiSAS.exe | C:\Program Files\Coocon\NXiSAS\RIUSStub64.exe | executable | |
MD5:— | SHA256:— | |||
| 3984 | NXiSAS.exe | C:\Program Files\Coocon\NXiSAS\iSASUpdate64.dll | executable | |
MD5:— | SHA256:— | |||
| 3984 | NXiSAS.exe | C:\Users\admin\AppData\Local\Temp\nsaBB8B.tmp | — | |
MD5:— | SHA256:— | |||
| 3984 | NXiSAS.exe | C:\Program Files\Coocon\NXiSAS\RIUSStub32.exe | executable | |
MD5:— | SHA256:— | |||
| 3984 | NXiSAS.exe | C:\Program Files\Coocon\NXiSAS\iSASUpdater.exe | executable | |
MD5:— | SHA256:— | |||
| 3984 | NXiSAS.exe | C:\Program Files\Coocon\NXiSAS\libeay32.dll | executable | |
MD5:— | SHA256:— | |||
| 3984 | NXiSAS.exe | C:\Program Files\Coocon\NXiSAS\iSASUpdate.dll | executable | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
2
DNS requests
1
Threats
2
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2572 | iSASWebLauncher.exe | GET | — | 220.73.162.237:80 | http://ibase.cybercfo.co.kr/isas/update/module/iSASNXHTTPS.iBz | KR | — | — | suspicious |
2572 | iSASWebLauncher.exe | GET | 200 | 220.73.162.237:80 | http://ibase.cybercfo.co.kr/isas/update/module/iSASNXHTTPS.ini | KR | text | 46 b | suspicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2572 | iSASWebLauncher.exe | 220.73.162.237:80 | ibase.cybercfo.co.kr | Korea Telecom | KR | suspicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
ibase.cybercfo.co.kr |
| suspicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Potentially Bad Traffic | ET INFO Suspicious Mozilla User-Agent - Likely Fake (Mozilla/4.0) |
— | — | Potentially Bad Traffic | ET INFO Suspicious Mozilla User-Agent - Likely Fake (Mozilla/4.0) |