| File name: | nn37.exe |
| Full analysis: | https://app.any.run/tasks/e9be27c2-3ce8-4906-9592-0ccf5b8df6b7 |
| Verdict: | Malicious activity |
| Analysis date: | February 21, 2020, 00:40:32 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | F330E2DE21D661BAE63FAB8A864B303D |
| SHA1: | D2343F396CC05F60D300B3B2FE8AB255E69F4F24 |
| SHA256: | 4735D9DDA48F3F8B523DC034DBF998F2D40C8D11DB8B4CA7EB714C55FD317E0B |
| SSDEEP: | 49152:l753CYXtGrk5d4qnTb6d4pKV/hIO+sm8YR:953VQrk5+d4pKA7XR |
MALICIOUS
Application was dropped or rewritten from another process
- natsvc.exe (PID: 2760)
SUSPICIOUS
Executable content was dropped or overwritten
- nn37.exe (PID: 3144)
- nn37.exe (PID: 2976)
- nn37.tmp (PID: 3080)
- natsvc.exe (PID: 2760)
Creates files in the user directory
- nn37.tmp (PID: 3080)
Starts CMD.EXE for commands execution
- nn37.tmp (PID: 3080)
Uses ICACLS.EXE to modify access control list
- cmd.exe (PID: 3820)
Starts SC.EXE for service management
- cmd.exe (PID: 2888)
- nn37.tmp (PID: 3080)
Executed as Windows Service
- natsvc.exe (PID: 2760)
Creates files in the program directory
- natsvc.exe (PID: 2760)
Uses WMIC.EXE to obtain a system information
- cmd.exe (PID: 3744)
- cmd.exe (PID: 916)
Starts application with an unusual extension
- cmd.exe (PID: 3744)
- cmd.exe (PID: 916)
INFO
Application was dropped or rewritten from another process
- nn37.tmp (PID: 3796)
- nn37.tmp (PID: 3080)
Loads dropped or rewritten executable
- nn37.tmp (PID: 3080)
Creates files in the program directory
- nn37.tmp (PID: 3080)
Creates a software uninstall entry
- nn37.tmp (PID: 3080)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Inno Setup installer (77.7) |
|---|---|---|
| .exe | | | Win32 Executable Delphi generic (10) |
| .dll | | | Win32 Dynamic Link Library (generic) (4.6) |
| .exe | | | Win32 Executable (generic) (3.1) |
| .exe | | | Win16/32 Executable Delphi generic (1.4) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 1992:06:20 00:22:17+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 2.25 |
| CodeSize: | 41472 |
| InitializedDataSize: | 17920 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xaa98 |
| OSVersion: | 1 |
| ImageVersion: | 6 |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 3.5.4.37 |
| ProductVersionNumber: | 3.5.4.37 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | This installation was built with Inno Setup. |
| CompanyName: | Neo Network |
| FileDescription: | Neo Network Technology Windows Service Program Setup |
| FileVersion: | 3.5.4.37 |
| LegalCopyright: | |
| ProductName: | Neo Network Technology Windows Service Program |
| ProductVersion: | 3.5.4.37 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 19-Jun-1992 22:22:17 |
| Detected languages: |
|
| Comments: | This installation was built with Inno Setup. |
| CompanyName: | Neo Network |
| FileDescription: | Neo Network Technology Windows Service Program Setup |
| FileVersion: | 3.5.4.37 |
| LegalCopyright: | - |
| ProductName: | Neo Network Technology Windows Service Program |
| ProductVersion: | 3.5.4.37 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0050 |
| Pages in file: | 0x0002 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x000F |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x001A |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000100 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 8 |
| Time date stamp: | 19-Jun-1992 22:22:17 |
| 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 |
|---|---|---|---|---|---|
CODE | 0x00001000 | 0x0000A1D0 | 0x0000A200 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.64375 |
DATA | 0x0000C000 | 0x00000250 | 0x00000400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 2.74012 |
BSS | 0x0000D000 | 0x00000E94 | 0x00000000 | IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.idata | 0x0000E000 | 0x0000097C | 0x00000A00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 4.48608 |
.tls | 0x0000F000 | 0x00000008 | 0x00000000 | IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.rdata | 0x00010000 | 0x00000018 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED | 0.190489 |
.reloc | 0x00011000 | 0x0000091C | 0x00000000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED | 0 |
.rsrc | 0x00012000 | 0x00002C00 | 0x00002C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED | 4.61084 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.13965 | 1580 | UNKNOWN | English - United States | RT_MANIFEST |
2 | 3.47151 | 1384 | UNKNOWN | Dutch - Netherlands | RT_ICON |
3 | 3.91708 | 744 | UNKNOWN | Dutch - Netherlands | RT_ICON |
4 | 3.91366 | 2216 | UNKNOWN | Dutch - Netherlands | RT_ICON |
4089 | 3.21823 | 754 | UNKNOWN | UNKNOWN | RT_STRING |
4090 | 3.31515 | 780 | UNKNOWN | UNKNOWN | RT_STRING |
4091 | 3.25024 | 718 | UNKNOWN | UNKNOWN | RT_STRING |
4093 | 2.86149 | 104 | UNKNOWN | UNKNOWN | RT_STRING |
4094 | 3.20731 | 180 | UNKNOWN | UNKNOWN | RT_STRING |
4095 | 3.04592 | 174 | UNKNOWN | UNKNOWN | RT_STRING |
Imports
advapi32.dll |
comctl32.dll |
kernel32.dll |
oleaut32.dll |
user32.dll |
Total processes
68
Monitored processes
23
Malicious processes
3
Suspicious processes
2
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 916 | "C:\Windows\system32\cmd.exe" /C wmic service NATService get state | more> C:\Users\admin\AppData\Local\Temp\is-3GNTS.tmp\temp_cmd_result.txt | C:\Windows\system32\cmd.exe | — | nn37.tmp | |||||||||||
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
| |||||||||||||||
| 1380 | timeout 5 | C:\Windows\system32\timeout.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: timeout - pauses command processing Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1712 | "C:\Windows\system32\sc.exe" create NATService start= auto binPath= "\"C:\Program Files\NAT Service\natsvc.exe\"" | C:\Windows\system32\sc.exe | — | nn37.tmp | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: A tool to aid in developing services for WindowsNT Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1800 | cmd /c ""C:\Users\admin\AppData\Roaming\b12e8a888d557e413398f686e4475ec4.bat" " | C:\Windows\system32\cmd.exe | — | nn37.tmp | |||||||||||
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
| |||||||||||||||
| 2464 | sc start NATService | C:\Windows\system32\sc.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: A tool to aid in developing services for WindowsNT Exit code: 1060 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2620 | cmd /c ""C:\Users\admin\AppData\Roaming\581c9ac27c2dd71fd022d14ac1db730a.bat" " | C:\Windows\system32\cmd.exe | — | nn37.tmp | |||||||||||
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
| |||||||||||||||
| 2760 | "C:\Program Files\NAT Service\natsvc.exe" | C:\Program Files\NAT Service\natsvc.exe | services.exe | ||||||||||||
User: SYSTEM Company: NeoNTech Integrity Level: SYSTEM Description: Neo Network Technology Windows Service Program Exit code: 0 Version: 3.5.4.37 Modules
| |||||||||||||||
| 2888 | cmd /c ""C:\Users\admin\AppData\Roaming\6d0d9615de51b5e595a510840c50d136.bat" " | C:\Windows\system32\cmd.exe | — | nn37.tmp | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 1060 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2976 | "C:\Users\admin\AppData\Local\Temp\nn37.exe" /SPAWNWND=$601CA /NOTIFYWND=$6024E | C:\Users\admin\AppData\Local\Temp\nn37.exe | nn37.tmp | ||||||||||||
User: admin Company: Neo Network Integrity Level: HIGH Description: Neo Network Technology Windows Service Program Setup Exit code: 0 Version: 3.5.4.37 Modules
| |||||||||||||||
| 2988 | takeown /f "C:\Program Files\NAT Service" /R /D Y | C:\Windows\system32\takeown.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Takes ownership of a file Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
838
Read events
808
Write events
30
Delete events
0
Modification events
| (PID) Process: | (3080) nn37.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | Owner |
Value: 080C0000E463D3934FE8D501 | |||
| (PID) Process: | (3080) nn37.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | SessionHash |
Value: 9533C6DECC8326E46DC76B6C686FAEBAB9259BFEE6F0E362ED2B716A6CC79F99 | |||
| (PID) Process: | (3080) nn37.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | Sequence |
Value: 1 | |||
| (PID) Process: | (3080) nn37.tmp | Key: | HKEY_LOCAL_MACHINE\SYSTEM\Software\Microsoft\Fax |
| Operation: | write | Name: | udx |
Value: 0B0FEC5A-C75D-4171-9A51-1C8A271E0E80 | |||
| (PID) Process: | (3080) nn37.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (3080) nn37.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (3080) nn37.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | RegFiles0000 |
Value: C:\Program Files\NAT Service\natsvc.exe | |||
| (PID) Process: | (3080) nn37.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | RegFilesHash |
Value: 17755B8F0C0C9B4871240931503704062403D30B51074FE240436A1385186DED | |||
| (PID) Process: | (3080) nn37.tmp | Key: | HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Session Manager\Environment |
| Operation: | write | Name: | Path |
Value: C:\Program Files\NAT Service;C:\ProgramData\Oracle\Java\javapath;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\ | |||
| (PID) Process: | (3080) nn37.tmp | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{F67E509A-0033-4759-9E71-CE372F4D89B4}}_is1 |
| Operation: | write | Name: | Inno Setup: Setup Version |
Value: 5.5.9 (a) | |||
Executable files
7
Suspicious files
0
Text files
4
Unknown types
1
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3080 | nn37.tmp | C:\Program Files\NAT Service\is-60V5H.tmp | — | |
MD5:— | SHA256:— | |||
| 3080 | nn37.tmp | C:\Program Files\NAT Service\is-0VDL2.tmp | — | |
MD5:— | SHA256:— | |||
| 3080 | nn37.tmp | C:\Users\admin\AppData\Roaming\6d0d9615de51b5e595a510840c50d136.bat | — | |
MD5:— | SHA256:— | |||
| 3080 | nn37.tmp | C:\Program Files\NAT Service\is-NBHH0.tmp | — | |
MD5:— | SHA256:— | |||
| 3248 | more.com | C:\Users\admin\AppData\Local\Temp\is-3GNTS.tmp\temp_cmd_result.txt | — | |
MD5:— | SHA256:— | |||
| 3236 | more.com | C:\Users\admin\AppData\Local\Temp\is-3GNTS.tmp\temp_cmd_result.txt | — | |
MD5:— | SHA256:— | |||
| 3080 | nn37.tmp | C:\Program Files\NAT Service\unins000.exe | executable | |
MD5:— | SHA256:— | |||
| 3080 | nn37.tmp | C:\Program Files\NAT Service\natsvc.exe | executable | |
MD5:— | SHA256:— | |||
| 3080 | nn37.tmp | C:\Program Files\NAT Service\unins000.dat | dat | |
MD5:— | SHA256:— | |||
| 3080 | nn37.tmp | C:\Users\admin\AppData\Roaming\581c9ac27c2dd71fd022d14ac1db730a.bat | text | |
MD5:DB4AB8278CC5BACF4C54F658CB5613C0 | SHA256:9A180FFF0BA28EF0972D09E89E40096E51038EA5A0089E3417D78DFFF720566F | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
1
DNS requests
1
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3080 | nn37.tmp | 211.239.158.11:15000 | collect.grid.log.kgrid.co.kr | Sejong Telecom | KR | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
collect.grid.log.kgrid.co.kr |
| unknown |