| File name: | crylock.exe |
| Full analysis: | https://app.any.run/tasks/45ae403f-b1ab-4dfe-9d47-0b240aedd8aa |
| Verdict: | Malicious activity |
| Analysis date: | February 22, 2020, 02:59:01 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | F5CB2BA53F4298B6CE4C46CF20082F6B |
| SHA1: | 209D7E95A1BC21AF192BA25697FDA16D71B72830 |
| SHA256: | 56B33ABB48673A6CEEACED9567D4E3A4538A8A415663430A87EB49A9FC25B1DD |
| SSDEEP: | 6144:lW59l6ZWKWLFmSQPP4o07J7kIHCT2Awy6Pk:oFErWwNPP4oDiAwy68 |
MALICIOUS
Changes the autorun value in the registry
- crylock.exe (PID: 1740)
- crylock.exe (PID: 1676)
Starts BCDEDIT.EXE to disable recovery
- crylock.exe (PID: 1676)
Deletes shadow copies
- crylock.exe (PID: 1676)
SUSPICIOUS
Application launched itself
- crylock.exe (PID: 1740)
Executed as Windows Service
- vssvc.exe (PID: 3984)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable Delphi generic (45.2) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (20.9) |
| .exe | | | Win32 Executable (generic) (14.3) |
| .exe | | | Win16/32 Executable Delphi generic (6.6) |
| .exe | | | Generic Win/DOS Executable (6.3) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 1992:06:20 00:22:17+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 2.25 |
| CodeSize: | 247296 |
| InitializedDataSize: | 67072 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x3a0d4 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 19-Jun-1992 22:22:17 |
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 | 0x0003C470 | 0x0003C600 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.72077 |
DATA | 0x0003E000 | 0x00007A28 | 0x00007C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 5.42795 |
BSS | 0x00046000 | 0x00F448B9 | 0x00000000 | IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.idata | 0x00F8B000 | 0x00001040 | 0x00001200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 4.56123 |
.tls | 0x00F8D000 | 0x0000000C | 0x00000000 | IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.rdata | 0x00F8E000 | 0x00000018 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED | 0.258612 |
.reloc | 0x00F8F000 | 0x00006044 | 0x00006200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED | 6.37501 |
.rsrc | 0x00F96000 | 0x00001400 | 0x00001400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED | 3.60178 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
4090 | 3.12096 | 512 | UNKNOWN | UNKNOWN | RT_STRING |
4091 | 3.11453 | 380 | UNKNOWN | UNKNOWN | RT_STRING |
4092 | 3.0171 | 236 | UNKNOWN | UNKNOWN | RT_STRING |
4093 | 3.25818 | 524 | UNKNOWN | UNKNOWN | RT_STRING |
4094 | 3.18412 | 976 | UNKNOWN | UNKNOWN | RT_STRING |
4095 | 3.26889 | 884 | UNKNOWN | UNKNOWN | RT_STRING |
4096 | 3.16875 | 708 | UNKNOWN | UNKNOWN | RT_STRING |
DVCLAL | 4 | 16 | UNKNOWN | UNKNOWN | RT_RCDATA |
PACKAGEINFO | 5.24721 | 308 | UNKNOWN | UNKNOWN | RT_RCDATA |
Imports
Netapi32.dll |
advapi32.dll |
kernel32.dll |
mpr.dll |
oleaut32.dll |
shell32.dll |
user32.dll |
wsock32.dll |
Total processes
53
Monitored processes
9
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1676 | "C:\Users\admin\AppData\Local\Temp\crylock.exe" "runas" | C:\Users\admin\AppData\Local\Temp\crylock.exe | crylock.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 1740 | "C:\Users\admin\AppData\Local\Temp\crylock.exe" | C:\Users\admin\AppData\Local\Temp\crylock.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 2628 | "C:\Windows\System32\bcdedit.exe" /set {default} recoveryenabled No | C:\Windows\System32\bcdedit.exe | — | crylock.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
| |||||||||||||||
| 2740 | "C:\Windows\System32\wbadmin.exe" DELETE SYSTEMSTATEBACKUP -keepVersions:0 | C:\Windows\System32\wbadmin.exe | — | crylock.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Command Line Interface for Microsoft® BLB Backup Exit code: 4294967293 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2852 | "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet | C:\Windows\System32\vssadmin.exe | — | crylock.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
| |||||||||||||||
| 3336 | "C:\Windows\System32\bcdedit.exe" /set {default} bootstatuspolicy ignoreallfailures | C:\Windows\System32\bcdedit.exe | — | crylock.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
| |||||||||||||||
| 3896 | "C:\Windows\System32\wbem\WMIC.exe" SHADOWCOPY DELETE | C:\Windows\System32\wbem\WMIC.exe | — | crylock.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: WMI Commandline Utility Exit code: 2147749890 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3984 | 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 Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3992 | "C:\Windows\System32\wbadmin.exe" DELETE BACKUP -keepVersions:0 | C:\Windows\System32\wbadmin.exe | — | crylock.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Command Line Interface for Microsoft® BLB Backup Exit code: 4294967295 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
838
Read events
804
Write events
34
Delete events
0
Modification events
| (PID) Process: | (1740) crylock.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | BD12B0CC-BE5BF9A0 |
Value: C:\Users\admin\AppData\Local\Temp\crylock.exe | |||
| (PID) Process: | (1740) crylock.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | 3702802 |
Value: 3702802 | |||
| (PID) Process: | (1740) crylock.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (1740) crylock.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (1676) crylock.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | BD12B0CC-BE5BF9A0 |
Value: C:\Users\admin\AppData\Local\Temp\crylock.exe | |||
| (PID) Process: | (1676) crylock.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | 24488 |
Value: 24488 | |||
| (PID) Process: | (1676) crylock.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (1676) crylock.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2628) bcdedit.exe | Key: | HKEY_LOCAL_MACHINE\BCD00000000\Objects\{345b46fd-a9f9-11e7-a83c-e8a4f72b1d33}\Elements\16000009 |
| Operation: | write | Name: | Element |
Value: 00 | |||
| (PID) Process: | (3336) bcdedit.exe | Key: | HKEY_LOCAL_MACHINE\BCD00000000\Objects\{345b46fd-a9f9-11e7-a83c-e8a4f72b1d33}\Elements\250000e0 |
| Operation: | write | Name: | Element |
Value: 0100000000000000 | |||
Executable files
0
Suspicious files
0
Text files
1
Unknown types
3
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1676 | crylock.exe | UNC\User-PC\ADMIN$\AppCompat\Programs\AEINV_PREVIOUS.xml[tomascry@protonmail.com][BD12B0CC-BE5BF9A0].ucr | — | |
MD5:— | SHA256:— | |||
| 1676 | crylock.exe | UNC\User-PC\ADMIN$\AppCompat\Programs\RecentFileCache.bcf[tomascry@protonmail.com][BD12B0CC-BE5BF9A0].ttb | — | |
MD5:— | SHA256:— | |||
| 1740 | crylock.exe | C:\Users\admin\AppData\Local\Temp\how_to_decrypt.hta | html | |
MD5:— | SHA256:— | |||
| 3992 | wbadmin.exe | C:\Windows\Logs\WindowsBackup\Wbadmin.2.etl | etl | |
MD5:— | SHA256:— | |||
| 3992 | wbadmin.exe | C:\Windows\Logs\WindowsBackup\Wbadmin.1.etl | etl | |
MD5:— | SHA256:— | |||
| 2740 | wbadmin.exe | C:\Windows\Logs\WindowsBackup\Wbadmin.1.etl | etl | |
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