| File name: | PDF-XChange-2.5.311.exe |
| Full analysis: | https://app.any.run/tasks/a3de3fc3-76ee-4ad4-979b-9aecb249b8f3 |
| Verdict: | Malicious activity |
| Analysis date: | March 14, 2018, 21:04:30 |
| 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, Nullsoft Installer self-extracting archive |
| MD5: | EFA34798749572F1F2AB31DCD33DDF0D |
| SHA1: | F2DF833103EC74A7EFE6DC4E4BB217A0BC84A05B |
| SHA256: | 0B141BCB1C39E0F157DCF1958865C29A8EDDB8AC361F3BEDDD3FEF4C3A9BE9A6 |
| SSDEEP: | 196608:DT1HwTgzdh2NKzjJBUIChBNnCbemzt9ZeOMn1nH58lsHCm34KtOCg7uoBg4noRkE:DT1ugzdh2UgDB5CbRrZ+1nHilN9KtauJ |
MALICIOUS
Application loaded dropped or rewritten executable
- PDF-XChange-2.5.311.exe (PID: 2680)
- regsvr32.exe (PID: 572)
- regsvr32.exe (PID: 3232)
- regsvr32.exe (PID: 3104)
- regsvr32.exe (PID: 2132)
- regsvr32.exe (PID: 2992)
- regsvr32.exe (PID: 3104)
- regsvr32.exe (PID: 2136)
- wscript.exe (PID: 3232)
- wscript.exe (PID: 3648)
Application was dropped or rewritten from another process
- PDFXCview.exe (PID: 3980)
- PDFXCview.exe (PID: 3772)
- PDFXCview.exe (PID: 2124)
- PDFXCview.exe (PID: 3188)
- install.exe (PID: 3072)
- install.exe (PID: 4040)
- PDFXCview.exe (PID: 2196)
Changes internet zones settings
- iexplore.exe (PID: 2464)
- iexplore.exe (PID: 1884)
Changes settings of System certificates
- iexplore.exe (PID: 2496)
SUSPICIOUS
Creates COM task schedule object
- regsvr32.exe (PID: 2992)
- regsvr32.exe (PID: 3232)
- regsvr32.exe (PID: 3104)
- regsvr32.exe (PID: 2136)
- regsvr32.exe (PID: 3104)
Creates a software uninstall entry
- PDF-XChange-2.5.311.exe (PID: 2680)
Creates files in the program directory
- PDF-XChange-2.5.311.exe (PID: 2680)
Creates files in the user directory
- PDF-XChange-2.5.311.exe (PID: 2680)
Modifies the open verb of a shell class
- PDFXCview.exe (PID: 3188)
Executes Visual Basic scripts
- install.exe (PID: 3072)
- install.exe (PID: 4040)
Starts Internet Explorer
- PDF-XChange-2.5.311.exe (PID: 2680)
- iexplore.exe (PID: 2464)
- iexplore.exe (PID: 1884)
Writes to a desktop.ini file (may be used to cloak folders)
- iexplore.exe (PID: 1884)
Reads internet explorer settings
- PDFXCview.exe (PID: 2196)
Adds / modifies Windows certificates
- iexplore.exe (PID: 2496)
INFO
Dropped object may contain Bitcoin addresses
- PDF-XChange-2.5.311.exe (PID: 2680)
Loads rich edit control libraries
- PDF-XChange-2.5.311.exe (PID: 2680)
- PDFXCview.exe (PID: 2196)
Dropped object may contain URL's
- PDF-XChange-2.5.311.exe (PID: 2680)
- wscript.exe (PID: 3232)
- install.exe (PID: 3072)
- install.exe (PID: 4040)
- wscript.exe (PID: 3648)
- iexplore.exe (PID: 2496)
- PDFXCview.exe (PID: 2196)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | NSIS - Nullsoft Scriptable Install System (94.8) |
|---|---|---|
| .exe | | | Win32 Executable MS Visual C++ (generic) (3.4) |
| .dll | | | Win32 Dynamic Link Library (generic) (0.7) |
| .exe | | | Win32 Executable (generic) (0.5) |
| .exe | | | Generic Win/DOS Executable (0.2) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2009:12:05 23:50:46+01:00 |
| PEType: | PE32 |
| LinkerVersion: | 6 |
| CodeSize: | 23552 |
| InitializedDataSize: | 119808 |
| UninitializedDataSize: | 1024 |
| EntryPoint: | 0x323c |
| OSVersion: | 4 |
| ImageVersion: | 6 |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 2.5.310.0 |
| ProductVersionNumber: | 2.5.310.0 |
| FileFlagsMask: | 0x0000 |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Russian |
| CharacterSet: | Windows, Cyrillic |
| CompanyName: | diakov.net |
| FileDescription: | PDF-XChange Viewer Pro 2.5 Build 311 |
| FileVersion: | 2.5.310.0 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 05-Dec-2009 22:50:46 |
| Detected languages: |
|
| CompanyName: | diakov.net |
| FileDescription: | PDF-XChange Viewer Pro 2.5 Build 311 |
| FileVersion: | 2.5.310.0 |
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: | 0x000000D8 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 5 |
| Time date stamp: | 05-Dec-2009 22:50:46 |
| 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 | 0x00005A5A | 0x00005C00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.4177 |
.rdata | 0x00007000 | 0x00001190 | 0x00001200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.18163 |
.data | 0x00009000 | 0x0001AF98 | 0x00000400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 4.70903 |
.ndata | 0x00024000 | 0x00018000 | 0x00000000 | IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.rsrc | 0x0003C000 | 0x00022F90 | 0x00023000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 6.78874 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.10394 | 533 | UNKNOWN | English - United States | RT_MANIFEST |
2 | 7.87915 | 47600 | UNKNOWN | English - United States | RT_ICON |
3 | 5.95558 | 9640 | UNKNOWN | English - United States | RT_ICON |
4 | 5.85579 | 4264 | UNKNOWN | English - United States | RT_ICON |
5 | 5.11247 | 3752 | UNKNOWN | English - United States | RT_ICON |
6 | 6.57321 | 2216 | UNKNOWN | English - United States | RT_ICON |
7 | 6.56036 | 1736 | UNKNOWN | English - United States | RT_ICON |
8 | 5.60202 | 1384 | UNKNOWN | English - United States | RT_ICON |
9 | 6.08282 | 1128 | UNKNOWN | English - United States | RT_ICON |
10 | 0 | 296 | UNKNOWN | English - United States | RT_ICON |
Imports
ADVAPI32.dll |
COMCTL32.dll |
GDI32.dll |
KERNEL32.dll |
SHELL32.dll |
USER32.dll |
VERSION.dll |
ole32.dll |
Total processes
62
Monitored processes
22
Malicious processes
2
Suspicious processes
6
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 572 | regsvr32.exe /u /s "C:\Program Files\Tracker Software\PDF Viewer\PDFXCviewAx.dll" | C:\Windows\system32\regsvr32.exe | — | PDF-XChange-2.5.311.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Microsoft(C) Register Server Exit code: 5 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1884 | "C:\Program Files\Internet Explorer\iexplore.exe" -nohome | C:\Program Files\Internet Explorer\iexplore.exe | — | PDF-XChange-2.5.311.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Internet Explorer Exit code: 0 Version: 8.00.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2124 | "C:\Program Files\Tracker Software\PDF Viewer\PDFXCview.exe" /RegServer | C:\Program Files\Tracker Software\PDF Viewer\PDFXCview.exe | — | PDF-XChange-2.5.311.exe | |||||||||||
User: admin Company: Tracker Software Products (Canada) Ltd. Integrity Level: HIGH Description: PDF-XChange Viewer Exit code: 0 Version: 2.5.0311.0000 Modules
| |||||||||||||||
| 2132 | regsvr32.exe /u /s "C:\Program Files\Tracker Software\PDF Viewer\PDFXCviewIEPlugin.dll" | C:\Windows\system32\regsvr32.exe | — | PDF-XChange-2.5.311.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Microsoft(C) Register Server Exit code: 5 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2136 | regsvr32.exe /s "C:\Users\admin\AppData\Local\Temp\temp\JSSys3.dll" | C:\Windows\system32\regsvr32.exe | — | PDF-XChange-2.5.311.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Microsoft(C) Register Server Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2196 | "C:\Program Files\Tracker Software\PDF Viewer\PDFXCview.exe" | C:\Program Files\Tracker Software\PDF Viewer\PDFXCview.exe | — | explorer.exe | |||||||||||
User: admin Company: Tracker Software Products (Canada) Ltd. Integrity Level: MEDIUM Description: PDF-XChange Viewer Exit code: 0 Version: 2.5.0311.0000 Modules
| |||||||||||||||
| 2464 | "C:\Program Files\Internet Explorer\iexplore.exe" -nohome | C:\Program Files\Internet Explorer\iexplore.exe | — | PDF-XChange-2.5.311.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Internet Explorer Exit code: 1 Version: 8.00.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2496 | "C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:1884 CREDAT:79873 | C:\Program Files\Internet Explorer\iexplore.exe | — | iexplore.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Internet Explorer Exit code: 0 Version: 8.00.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2680 | "C:\Users\admin\AppData\Local\Temp\PDF-XChange-2.5.311.exe" | C:\Users\admin\AppData\Local\Temp\PDF-XChange-2.5.311.exe | explorer.exe | ||||||||||||
User: admin Company: diakov.net Integrity Level: HIGH Description: PDF-XChange Viewer Pro 2.5 Build 311 Exit code: 0 Version: 2.5.310.0 Modules
| |||||||||||||||
| 2992 | regsvr32.exe /s "C:\Program Files\Tracker Software\Shell Extensions\XCShInfo.dll" | C:\Windows\system32\regsvr32.exe | — | PDF-XChange-2.5.311.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Microsoft(C) Register Server Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
3 711
Read events
2 717
Write events
984
Delete events
10
Modification events
| (PID) Process: | (2680) PDF-XChange-2.5.311.exe | Key: | HKEY_CURRENT_USER\Software\Tracker Software\PDFViewer |
| Operation: | write | Name: | InstallPath |
Value: C:\Program Files\Tracker Software\PDF Viewer | |||
| (PID) Process: | (2680) PDF-XChange-2.5.311.exe | Key: | HKEY_CURRENT_USER\Software\Tracker Software\PDFViewer\ColorManagement |
| Operation: | write | Name: | |
Value: | |||
| (PID) Process: | (2680) PDF-XChange-2.5.311.exe | Key: | HKEY_CURRENT_USER\Software\Tracker Software\PDFViewer\ColorManagement\0001 |
| Operation: | write | Name: | RGB |
Value: Monitor RGB - sRGB IEC61966-2.1 | |||
| (PID) Process: | (2680) PDF-XChange-2.5.311.exe | Key: | HKEY_CURRENT_USER\Software\Tracker Software\PDFViewer\ColorManagement\0001 |
| Operation: | write | Name: | CMYK |
Value: U.S. Web Coated (SWOP) v2 | |||
| (PID) Process: | (2680) PDF-XChange-2.5.311.exe | Key: | HKEY_CURRENT_USER\Software\Tracker Software\PDFViewer\ColorManagement\0001 |
| Operation: | write | Name: | Name |
Value: Custom | |||
| (PID) Process: | (2680) PDF-XChange-2.5.311.exe | Key: | HKEY_CURRENT_USER\Software\Tracker Software\PDFViewer\ColorManagement\0001 |
| Operation: | write | Name: | Grayscale |
Value: Gray Gamma 2.2 | |||
| (PID) Process: | (2680) PDF-XChange-2.5.311.exe | Key: | HKEY_CURRENT_USER\Software\Tracker Software\PDFViewer\Registration |
| Operation: | write | Name: | Key |
Value: PXP40-4O031-1514Y-KRJM6-6A6E8-6WLE2 | |||
| (PID) Process: | (2680) PDF-XChange-2.5.311.exe | Key: | HKEY_CURRENT_USER\Software\Tracker Software\PDFViewer\Registration |
| Operation: | write | Name: | Name |
Value: RePack by Diakov | |||
| (PID) Process: | (2680) PDF-XChange-2.5.311.exe | Key: | HKEY_CURRENT_USER\Software\Tracker Software\PDFViewer\Registration |
| Operation: | write | Name: | Organization |
Value: | |||
| (PID) Process: | (2680) PDF-XChange-2.5.311.exe | Key: | HKEY_CURRENT_USER\Software\Tracker Software\PDFViewer\Registration |
| Operation: | write | Name: | |
Value: | |||
Executable files
16
Suspicious files
9
Text files
37
Unknown types
25
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2680 | PDF-XChange-2.5.311.exe | C:\Users\admin\AppData\Local\Temp\nsvB2EF.tmp\nsis-r.bmp | image | |
MD5:— | SHA256:— | |||
| 2680 | PDF-XChange-2.5.311.exe | C:\Users\admin\AppData\Local\Temp\nsvB2EF.tmp\modern-header.bmp | image | |
MD5:— | SHA256:— | |||
| 2680 | PDF-XChange-2.5.311.exe | C:\Users\admin\AppData\Local\Temp\nsvB2EF.tmp\Aero.dll | executable | |
MD5:243BF44688B131C3171F2827A93E39DC | SHA256:04A577DF50431EB0FF6FB103566402BF66C50415BCC1F8A86B9C235053131455 | |||
| 2680 | PDF-XChange-2.5.311.exe | C:\Users\admin\AppData\Local\Temp\nsvB2EF.tmp\info.rtf | rtf | |
MD5:— | SHA256:— | |||
| 2680 | PDF-XChange-2.5.311.exe | C:\Program Files\Tracker Software\PDF Viewer\PDFXCviewIEPlugin.dll | executable | |
MD5:— | SHA256:— | |||
| 2680 | PDF-XChange-2.5.311.exe | C:\Program Files\Tracker Software\PDF Viewer\npPDFXCviewNPPlugin.dll | executable | |
MD5:— | SHA256:— | |||
| 2680 | PDF-XChange-2.5.311.exe | C:\Users\admin\AppData\Local\Temp\nsvB2EF.tmp\orange-r.bmp | image | |
MD5:— | SHA256:— | |||
| 2680 | PDF-XChange-2.5.311.exe | C:\Users\admin\AppData\Local\Temp\nsvB2EF.tmp\modern-wizard.bmp | image | |
MD5:— | SHA256:— | |||
| 2680 | PDF-XChange-2.5.311.exe | C:\Users\admin\AppData\Local\Temp\nsvB2EF.tmp\LangDLL.dll | executable | |
MD5:9384F4007C492D4FA040924F31C00166 | SHA256:60A964095AF1BE79F6A99B22212FEFE2D16F5A0AFD7E707D14394E4143E3F4F5 | |||
| 2680 | PDF-XChange-2.5.311.exe | C:\Users\admin\AppData\Local\Temp\nsvB2EF.tmp\BrandingURL.dll | executable | |
MD5:71C46B663BAA92AD941388D082AF97E7 | SHA256:BB2B9C272B8B66BC1B414675C2ACBA7AFAD03FFF66A63BABEE3EE57ED163D19E | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
6
TCP/UDP connections
6
DNS requests
6
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | — | 178.255.83.1:80 | http://ocsp.comodoca.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBReAhtobFzTvhaRmVeJ38QUchY9AwQUu69%2BAj36pvE8hI6t7jiY7NkyMtQCECsuburZdTZsFIpu26N8jAc%3D | GB | — | — | whitelisted |
— | — | GET | 200 | 178.255.83.1:80 | http://ocsp.usertrust.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBR8sWZUnKvbRO5iJhat9GV793rVlAQUrb2YejS0Jvf6xCZU7wO94CTLVBoCECdm7lbrSfOOq9dwovyE3iI%3D | GB | der | 471 b | whitelisted |
— | — | GET | 200 | 13.107.21.200:80 | http://www.bing.com/favicon.ico | US | image | 237 b | whitelisted |
— | — | GET | 200 | 104.16.92.188:80 | http://crt.comodoca.com/COMODORSADomainValidationSecureServerCA.crt | US | der | 1.51 Kb | whitelisted |
— | — | GET | 200 | 104.16.92.188:80 | http://crt.comodoca.com/COMODORSAAddTrustCA.crt | US | der | 1.37 Kb | whitelisted |
— | — | GET | 301 | 5.44.219.58:80 | http://www.diakov.net/ | LV | html | 227 b | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
— | — | 13.107.21.200:80 | www.bing.com | Microsoft Corporation | US | whitelisted |
— | — | 5.44.219.58:80 | www.diakov.net | Camelhost Sia | LV | unknown |
— | — | 5.44.219.58:443 | www.diakov.net | Camelhost Sia | LV | unknown |
— | — | 178.255.83.1:80 | ocsp.usertrust.com | CCANET Limited | GB | unknown |
— | — | 104.16.92.188:80 | crt.comodoca.com | Cloudflare Inc | US | shared |
DNS requests
Domain | IP | Reputation |
|---|---|---|
www.bing.com |
| whitelisted |
www.diakov.net |
| malicious |
diakov.net |
| malicious |
crt.comodoca.com |
| whitelisted |
ocsp.usertrust.com |
| whitelisted |
ocsp.comodoca.com |
| whitelisted |