MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 671fb988c777ad27531f39dd4fb5f4c4483fb7b07e8e493cd72ee8a6572db576. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
VirLock
Vendor detections: 5
| SHA256 hash: | 671fb988c777ad27531f39dd4fb5f4c4483fb7b07e8e493cd72ee8a6572db576 |
|---|---|
| SHA3-384 hash: | 7e1b1d2c1ea7d264b258d235c230680a643f4c5ba7a30b1e22380498ffb21e80ba6d7f62e28fe41c93d0bf79f6b16d8b |
| SHA1 hash: | 889008544db84951a400da8a9c93a0b5d5761dc6 |
| MD5 hash: | b2ad9775914b417450888a63feed173a |
| humanhash: | kitten-illinois-william-autumn |
| File name: | b2ad9775_by_Libranalysis |
| Download: | download sample |
| Signature | VirLock |
| File size: | 675'328 bytes |
| First seen: | 2021-05-05 08:03:14 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | a5d65f75e22404051734dd7c8d068331 (1 x VirLock) |
| ssdeep | 12288:rny37FQymIe7Av90iQkvNK5Pw7cTYaZXquJw49PrKRdwNbsAs2DsR4IOieQnfYwb:zy37FQVI6AvDp1K5PKWqdw2MDsb/YwbX |
| Threatray | 41 similar samples on MalwareBazaar |
| TLSH | 2CE4F180A6BD10AED805C47F192E755E6FEB390592F11877CF6D4F199B2BC8C7280B89 |
| Reporter |  Libranalysis |
Intelligence
File Origin
# of uploads :
1
# of downloads :
62
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Running batch commands
Deleting a recently created file
Launching a process
Creating a process with a hidden window
Sending an HTTP GET request
Creating a file
Creating a process from a recently created file
DNS request
Creating a service
Launching a service
Searching for the window
Creating a file in the Windows subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun for a service
Enabling autorun
Brute forcing passwords of local accounts
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Threat name:
Win32.Ransomware.VirLock
Status:
Malicious
First seen:
2020-05-06 23:46:20 UTC
AV detection:
46 of 48 (95.83%)
Threat level:
5/5
Verdict:
malicious
Similar samples:
+ 31 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
10/10
Tags:
evasion persistence spyware stealer trojan
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Drops file in System32 directory
Adds Run key to start application
Checks whether UAC is enabled
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Modifies WinLogon for persistence
Modifies visibility of file extensions in Explorer
UAC bypass
Unpacked files
SH256 hash:
cf341008aea6a65a5f3c3e33a6eb852836145c0d4e9f095d243d977c315412c5
MD5 hash:
c0b20734d4d2cef9fd5c131efc7e957c
SHA1 hash:
8b9e70c62922e9bfb864da075fad6272c376044e
SH256 hash:
671fb988c777ad27531f39dd4fb5f4c4483fb7b07e8e493cd72ee8a6572db576
MD5 hash:
b2ad9775914b417450888a63feed173a
SHA1 hash:
889008544db84951a400da8a9c93a0b5d5761dc6
Please note that we are no longer able to provide a coverage score for Virus Total.
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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