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| File name: | kr3.exe |
| Full analysis: | https://app.any.run/tasks/5652b92e-289c-4a31-972b-99a2fadf8afb |
| Verdict: | Malicious activity |
| Threats: | GandCrab is probably one of the most famous Ransomware. A Ransomware is a malware that asks the victim to pay money in order to restore access to encrypted files. If the user does not cooperate the files are forever lost. |
| Analysis date: | April 25, 2019, 07:07:37 |
| 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: | EBEA9B2F8892536DC1B4E7F63C189905 |
| SHA1: | B29731DFFE86A38FEF136DED058BCAB7A1E60A28 |
| SHA256: | 2E07AD49B8D4B9E2034A63999CDD86F50090B681A13DCCB85989ED0F21DE58DD |
| SSDEEP: | 12288:GG87EZRSjv3lJXX7ro5Beoz2+44XFaF34uoUM:GGZZevnXLAeoTAF3JoUM |
MALICIOUS
Actions looks like stealing of personal data
- kr3.exe (PID: 3920)
Writes file to Word startup folder
- kr3.exe (PID: 3920)
Renames files like Ransomware
- kr3.exe (PID: 3920)
Connects to CnC server
- kr3.exe (PID: 3920)
Deletes shadow copies
- cmd.exe (PID: 2528)
Changes settings of System certificates
- kr3.exe (PID: 3920)
Dropped file may contain instructions of ransomware
- kr3.exe (PID: 3920)
GANDCRAB detected
- kr3.exe (PID: 3920)
SUSPICIOUS
Creates files in the program directory
- kr3.exe (PID: 3920)
Reads the cookies of Mozilla Firefox
- kr3.exe (PID: 3920)
Starts CMD.EXE for commands execution
- kr3.exe (PID: 3920)
Adds / modifies Windows certificates
- kr3.exe (PID: 3920)
Creates files in the user directory
- kr3.exe (PID: 3920)
INFO
Dropped object may contain Bitcoin addresses
- kr3.exe (PID: 3920)
Dropped object may contain TOR URL's
- kr3.exe (PID: 3920)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (76.4) |
|---|---|---|
| .exe | | | Win32 Executable (generic) (12.4) |
| .exe | | | Generic Win/DOS Executable (5.5) |
| .exe | | | DOS Executable Generic (5.5) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2019:04:24 19:36:06+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 12 |
| CodeSize: | 264192 |
| InitializedDataSize: | 296960 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x13e64 |
| OSVersion: | 6 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 6.3.4.3 |
| ProductVersionNumber: | 6.3.4.3 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Windows NT 32-bit |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Unicode |
| OriginalFileName: | Silica Textbooks |
| CompanyName: | Adobe Systems Inc. |
| FileDescription: | Telecom Equipments Defeated Transformations |
| LegalCopyright: | © 2016 All rights reserved. |
| Comments: | Telecom Equipments Defeated Transformations |
| ProductName: | Silica Textbooks |
| FileVersion: | 6.3.4.3 |
| LegalTrademarks: | © 2016 All rights reserved. |
| PrivateBuild: | 6.3.4.3 |
| ProductVersion: | 6.3.4.3 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 24-Apr-2019 17:36:06 |
| Detected languages: |
|
| Debug artifacts: |
|
| OriginalFilename: | Silica Textbooks |
| CompanyName: | Adobe Systems Inc. |
| FileDescription: | Telecom Equipments Defeated Transformations |
| LegalCopyright: | © 2016 All rights reserved. |
| Comments: | Telecom Equipments Defeated Transformations |
| ProductName: | Silica Textbooks |
| FileVersion: | 6.3.4.3 |
| LegalTrademarks: | © 2016 All rights reserved. |
| PrivateBuild: | 6.3.4.3 |
| ProductVersion: | 6.3.4.3 |
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: | 0x00000100 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 4 |
| Time date stamp: | 24-Apr-2019 17:36:06 |
| 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 | 0x000406FD | 0x00040800 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.69348 |
.rdata | 0x00042000 | 0x00014E7E | 0x00015000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.56052 |
.data | 0x00057000 | 0x00007F48 | 0x00002E00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 4.40111 |
.rsrc | 0x0005F000 | 0x00030890 | 0x00030A00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.24635 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.09152 | 588 | Latin 1 / Western European | English - United States | RT_MANIFEST |
2 | 7.62721 | 4224 | Latin 1 / Western European | English - United States | RT_ICON |
3 | 2.45134 | 9640 | Latin 1 / Western European | English - United States | RT_ICON |
4 | 2.63768 | 4264 | Latin 1 / Western European | English - United States | RT_ICON |
5 | 2.28494 | 10344 | Latin 1 / Western European | English - United States | RT_ICON |
6 | 2.33788 | 16936 | Latin 1 / Western European | English - United States | RT_ICON |
101 | 2.73811 | 90 | Latin 1 / Western European | English - United States | RT_GROUP_ICON |
426 | 7.33495 | 619 | Latin 1 / Western European | English - United States | PNG |
427 | 7.72542 | 1004 | Latin 1 / Western European | English - United States | PNG |
428 | 5.79431 | 145 | Latin 1 / Western European | English - United States | PNG |
Imports
COMCTL32.dll |
CRYPT32.dll |
GDI32.dll |
KERNEL32.dll |
MSIMG32.dll |
MSVFW32.dll |
SETUPAPI.dll |
SHELL32.dll |
SHLWAPI.dll |
USER32.dll |
Total processes
37
Monitored processes
4
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 3920 | "C:\Users\admin\Desktop\kr3.exe" | C:\Users\admin\Desktop\kr3.exe | explorer.exe | |
User: admin Company: Adobe Systems Inc. Integrity Level: MEDIUM Description: Telecom Equipments Defeated Transformations Version: 6.3.4.3 | ||||
| 2528 | "C:\Windows\system32\cmd.exe" /c vssadmin delete shadows /all /quiet | C:\Windows\system32\cmd.exe | kr3.exe | |
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) | ||||
| 1664 | vssadmin delete shadows /all /quiet | C:\Windows\system32\vssadmin.exe | — | cmd.exe |
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Command Line Interface for Microsoft® Volume Shadow Copy Service Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 1648 | C:\Windows\system32\vssvc.exe | C:\Windows\system32\vssvc.exe | — | services.exe |
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Microsoft® Volume Shadow Copy Service Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
Total events
178
Read events
144
Write events
34
Delete events
0
Modification events
| (PID) Process: | (3920) kr3.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\62\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (3920) kr3.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (3920) kr3.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (3920) kr3.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\kr3_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3920) kr3.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\kr3_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3920) kr3.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\kr3_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3920) kr3.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\kr3_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3920) kr3.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\kr3_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (3920) kr3.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\kr3_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (3920) kr3.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\kr3_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
Executable files
0
Suspicious files
432
Text files
318
Unknown types
5
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3920 | kr3.exe | C:\Recovery\345b46fe-a9f9-11e7-a83c-e8a4f72b1d33\boot.sdi | — | |
MD5:— | SHA256:— | |||
| 3920 | kr3.exe | C:\Recovery\345b46fe-a9f9-11e7-a83c-e8a4f72b1d33\Winre.wim.qrjuukzv | — | |
MD5:— | SHA256:— | |||
| 3920 | kr3.exe | C:\Recovery\345b46fe-a9f9-11e7-a83c-e8a4f72b1d33\Winre.wim | — | |
MD5:— | SHA256:— | |||
| 3920 | kr3.exe | C:\System Volume Information\SPP\OnlineMetadataCache\{05ed3515-06b3-48f6-8cf2-bf24b1bf0727}_OnDiskSnapshotProp | — | |
MD5:— | SHA256:— | |||
| 3920 | kr3.exe | C:\System Volume Information\SPP\OnlineMetadataCache\{16d74681-6bc3-4c44-97f0-8b8dfefe2355}_OnDiskSnapshotProp | — | |
MD5:— | SHA256:— | |||
| 3920 | kr3.exe | C:\System Volume Information\SPP\OnlineMetadataCache\{38e8535f-27d0-4352-aa3a-ce4178930102}_OnDiskSnapshotProp | — | |
MD5:— | SHA256:— | |||
| 3920 | kr3.exe | C:\System Volume Information\SPP\OnlineMetadataCache\{3cc0f82b-873a-4e59-b89f-689fbdf88af9}_OnDiskSnapshotProp | — | |
MD5:— | SHA256:— | |||
| 3920 | kr3.exe | C:\System Volume Information\SPP\OnlineMetadataCache\{5c4beaff-a038-4df7-9b35-072a18f8e3d6}_OnDiskSnapshotProp | — | |
MD5:— | SHA256:— | |||
| 3920 | kr3.exe | C:\PerfLogs\Admin\QRJUUKZV-MANUAL.txt | text | |
MD5:F99292DD9B81E00C52741D03F8158140 | SHA256:C3340FAF1DF7560778C6E448B4573DD550FDED4D152A83C2FDD6A7CF2A654A0E | |||
| 3920 | kr3.exe | C:\MSOCache\QRJUUKZV-MANUAL.txt | text | |
MD5:F99292DD9B81E00C52741D03F8158140 | SHA256:C3340FAF1DF7560778C6E448B4573DD550FDED4D152A83C2FDD6A7CF2A654A0E | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
2
DNS requests
1
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3920 | kr3.exe | GET | 301 | 107.173.49.208:80 | http://www.kakaocorp.link/ | US | html | 162 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 |
|---|---|---|---|---|---|---|
— | — | 107.173.49.208:80 | www.kakaocorp.link | ColoCrossing | US | malicious |
3920 | kr3.exe | 107.173.49.208:443 | www.kakaocorp.link | ColoCrossing | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
www.kakaocorp.link |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
3920 | kr3.exe | A Network Trojan was detected | MALWARE [PTsecurity] Blacklisted GandCrab Ransomware C2 Server |
3920 | kr3.exe | A Network Trojan was detected | MALWARE [PTsecurity] Blacklisted GandCrab Ransomware C2 Server |
2 ETPRO signatures available at the full report