| File name: | winhost.exe |
| Full analysis: | https://app.any.run/tasks/766fa161-697c-425c-a98d-dc1e3978dd63 |
| Verdict: | Malicious activity |
| Threats: | Ransomware is a type of malicious software that locks users out of their system or data using different methods to force them to pay a ransom. Most often, such programs encrypt files on an infected machine and demand a fee to be paid in exchange for the decryption key. Additionally, such programs can be used to steal sensitive information from the compromised computer and even conduct DDoS attacks against affected organizations to pressure them into paying. |
| Analysis date: | November 16, 2020, 19:07:57 |
| 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: | 120E36C2428A4BFE9F37B977F698FA39 |
| SHA1: | 1BBDA98348F0D8D58C6AFCCD50A76321D02919F9 |
| SHA256: | 7593B85E66E49F39FEB3141B0D390ED9C660A227042686485131F4956E1F69FF |
| SSDEEP: | 6144:CbegCK2ePaW0G8Eepm27vBgiLg/V0ec4l2:0CQyo3km27vVLg/zc4l |
MALICIOUS
Deletes shadow copies
- winhost.exe (PID: 552)
Starts BCDEDIT.EXE to disable recovery
- winhost.exe (PID: 552)
Changes the autorun value in the registry
- winhost.exe (PID: 552)
Tries to delete the host file
- winhost.exe (PID: 552)
SUSPICIOUS
Executed as Windows Service
- vssvc.exe (PID: 2536)
Creates files in the user directory
- winhost.exe (PID: 2960)
- winhost.exe (PID: 552)
Application launched itself
- winhost.exe (PID: 2960)
Creates files like Ransomware instruction
- winhost.exe (PID: 2960)
Creates files in the program directory
- winhost.exe (PID: 552)
Removes files from Windows directory
- winhost.exe (PID: 552)
Creates files in the Windows directory
- winhost.exe (PID: 552)
Creates files in the driver directory
- winhost.exe (PID: 552)
Reads the cookies of Google Chrome
- winhost.exe (PID: 552)
Starts CMD.EXE for commands execution
- winhost.exe (PID: 552)
INFO
Reads the hosts file
- winhost.exe (PID: 552)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (64.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (15.4) |
| .exe | | | Win32 Executable (generic) (10.5) |
| .exe | | | Generic Win/DOS Executable (4.6) |
| .exe | | | DOS Executable Generic (4.6) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2020:08:09 18:37:03+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 14.27 |
| CodeSize: | 539136 |
| InitializedDataSize: | 360960 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xe0001 |
| OSVersion: | 6 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows GUI |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 09-Aug-2020 16:37:03 |
| Detected languages: |
|
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: | 0x00000108 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 7 |
| Time date stamp: | 09-Aug-2020 16:37:03 |
| 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 | 0x00084000 | 0x00029400 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.99563 |
.rdata | 0x00085000 | 0x00023000 | 0x0000C400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.98039 |
.data | 0x000A8000 | 0x00025000 | 0x00000800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.14004 |
.rsrc | 0x000CD000 | 0x00001000 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0.681538 |
.reloc | 0x000CE000 | 0x00012000 | 0x00007200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.98833 |
.aspack | 0x000E0000 | 0x00002000 | 0x00001400 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 6.10885 |
.adata | 0x000E2000 | 0x00001000 | 0x00000000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 4.91161 | 381 | UNKNOWN | English - United States | RT_MANIFEST |
Imports
advapi32.dll |
crypt32.dll |
iphlpapi.dll |
kernel32.dll |
mpr.dll |
netapi32.dll |
oleaut32.dll |
shell32.dll |
ws2_32.dll |
Total processes
79
Monitored processes
21
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 316 | vssadmin.exe Delete Shadows /All /Quiet | C:\Windows\system32\vssadmin.exe | — | winhost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Command Line Interface for Microsoft® Volume Shadow Copy Service Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 552 | "C:\Users\admin\AppData\Local\Temp\winhost.exe" | C:\Users\admin\AppData\Local\Temp\winhost.exe | winhost.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 1140 | vssadmin.exe Resize ShadowStorage /for=c: /on=c: /maxsize=unbounded | C:\Windows\system32\vssadmin.exe | — | winhost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Command Line Interface for Microsoft® Volume Shadow Copy Service Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1152 | vssadmin.exe Resize ShadowStorage /for=g: /on=g: /maxsize=unbounded | C:\Windows\system32\vssadmin.exe | — | winhost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Command Line Interface for Microsoft® Volume Shadow Copy Service Exit code: 2 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1508 | vssadmin.exe Resize ShadowStorage /for=d: /on=d: /maxsize=unbounded | C:\Windows\system32\vssadmin.exe | — | winhost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Command Line Interface for Microsoft® Volume Shadow Copy Service Exit code: 2 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1576 | bcdedit.exe /set {default} recoveryenabled No | C:\Windows\system32\bcdedit.exe | — | winhost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Boot Configuration Data Editor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 1628 | vssadmin.exe Resize ShadowStorage /for=f: /on=f: /maxsize=unbounded | C:\Windows\system32\vssadmin.exe | — | winhost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Command Line Interface for Microsoft® Volume Shadow Copy Service Exit code: 2 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2072 | wmic.exe SHADOWCOPY /nointeractive | C:\Windows\System32\Wbem\wmic.exe | — | winhost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: WMI Commandline Utility Exit code: 44124 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2188 | bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures | C:\Windows\system32\bcdedit.exe | — | winhost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Boot Configuration Data Editor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2488 | vssadmin.exe Resize ShadowStorage /for=e: /on=e: /maxsize=unbounded | C:\Windows\system32\vssadmin.exe | — | winhost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Command Line Interface for Microsoft® Volume Shadow Copy Service Exit code: 2 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
741
Read events
729
Write events
12
Delete events
0
Modification events
| (PID) Process: | (2960) winhost.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2960) winhost.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (1576) bcdedit.exe | Key: | HKEY_LOCAL_MACHINE\BCD00000000\Objects\{345b46fd-a9f9-11e7-a83c-e8a4f72b1d33}\Elements\16000009 |
| Operation: | write | Name: | Element |
Value: 00 | |||
| (PID) Process: | (2188) bcdedit.exe | Key: | HKEY_LOCAL_MACHINE\BCD00000000\Objects\{345b46fd-a9f9-11e7-a83c-e8a4f72b1d33}\Elements\250000e0 |
| Operation: | write | Name: | Element |
Value: 0100000000000000 | |||
| (PID) Process: | (552) winhost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System |
| Operation: | write | Name: | EnableLinkedConnections |
Value: 1 | |||
| (PID) Process: | (552) winhost.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | MSFEEditor |
Value: "C:\Users\admin\AppData\Local\Temp\winhost.exe" e | |||
| (PID) Process: | (552) winhost.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (552) winhost.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
Executable files
0
Suspicious files
526
Text files
178
Unknown types
20
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2960 | winhost.exe | C:\Users\admin\AppData\Roaming\KEY.FILE | binary | |
MD5:— | SHA256:— | |||
| 2960 | winhost.exe | C:\Users\admin\Desktop\!!!HOW_TO_DECRYPT!!!.TXT | text | |
MD5:— | SHA256:— | |||
| 552 | winhost.exe | C:\Program Files\FileZilla FTP Client\!!!HOW_TO_DECRYPT!!!.TXT | text | |
MD5:— | SHA256:— | |||
| 552 | winhost.exe | C:\autoexec.bat.dumpkee@keemail_me | binary | |
MD5:— | SHA256:— | |||
| 552 | winhost.exe | C:\!!!HOW_TO_DECRYPT!!!.TXT | text | |
MD5:— | SHA256:— | |||
| 552 | winhost.exe | C:\Program Files\FileZilla FTP Client\AUTHORS.dumpkee@keemail_me | binary | |
MD5:— | SHA256:— | |||
| 552 | winhost.exe | C:\Program Files\Mozilla Firefox\precomplete.dumpkee@keemail_me | binary | |
MD5:— | SHA256:— | |||
| 552 | winhost.exe | C:\Users\admin\!!!HOW_TO_DECRYPT!!!.TXT | text | |
MD5:— | SHA256:— | |||
| 552 | winhost.exe | C:\Program Files\Notepad++\LICENSE.dumpkee@keemail_me | binary | |
MD5:— | SHA256:— | |||
| 552 | winhost.exe | C:\Program Files\Mozilla Firefox\!!!HOW_TO_DECRYPT!!!.TXT | text | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
0
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report