File name:

Screen Lock Builder.zip

Full analysis: https://app.any.run/tasks/bb401f7b-22f4-4975-b900-5d0e3853bfc8
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.

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Analysis date: September 20, 2020, 15:08:15
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
trojan
screenlocker
ransomware
Indicators:
MIME: application/zip
File info: Zip archive data, at least v2.0 to extract
MD5:

93CD0F43B0EC8266D3CED9C89FC0C761

SHA1:

7195A3860682B58D655AE5B3D4574B446DCE9C16

SHA256:

7D91AF7C5CEBD8633C59B9A040BE7FF31421AF76E3291A4A17C2E489C2DF4FC8

SSDEEP:

12288:rX4T1QIHA8RwTKrIvStCoIUrE9u4fg7SpMpjYBEWccEUylEgMi5sZjY49xeMWcvd:0ZLg8RwcIv6ZIPZ6ZWLg/AjYK8M5AO

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • Application was dropped or rewritten from another process

      • Screen Lock Builder.exe (PID: 2372)
      • Screen Lock Builder.exe (PID: 3308)
      • LockBuild.exe (PID: 3836)

    • Changes settings of System certificates

      • Screen Lock Builder.exe (PID: 2372)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • WinRAR.exe (PID: 972)
      • Screen Lock Builder.exe (PID: 2372)

    • Reads Environment values

      • Screen Lock Builder.exe (PID: 2372)

    • Adds / modifies Windows certificates

      • Screen Lock Builder.exe (PID: 2372)

  • INFO

    • Manual execution by user

      • Screen Lock Builder.exe (PID: 3308)
      • LockBuild.exe (PID: 3836)
      • Screen Lock Builder.exe (PID: 2372)

    • Reads settings of System Certificates

      • Screen Lock Builder.exe (PID: 2372)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.zip | ZIP compressed archive (100)

EXIF

ZIP

ZipRequiredVersion: 20
ZipBitFlag: -
ZipCompression: Deflated
ZipModifyDate: 2016:12:29 12:29:24
ZipCRC: 0xf9e2f692
ZipCompressedSize: 392256
ZipUncompressedSize: 770560
ZipFileName: Screen Lock Builder.exe
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
53
Monitored processes
4
Malicious processes
1
Suspicious processes
1

Behavior graph

Click at the process to see the details
start winrar.exe screen lock builder.exe no specs screen lock builder.exe lockbuild.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
972"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\Screen Lock Builder.zip"C:\Program Files\WinRAR\WinRAR.exe
explorer.exe
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Exit code:
0
Version:
5.60.0
Modules
Images
c:\program files\winrar\winrar.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\usp10.dll
c:\windows\system32\lpk.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\comdlg32.dll
2372"C:\Users\admin\Desktop\Screen Lock Builder.exe" C:\Users\admin\Desktop\Screen Lock Builder.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Description:
Screen Lock Builder
Exit code:
0
Version:
1.1.4.0
Modules
Images
c:\users\admin\desktop\screen lock builder.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
3308"C:\Users\admin\Desktop\Screen Lock Builder.exe" C:\Users\admin\Desktop\Screen Lock Builder.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Screen Lock Builder
Exit code:
3221226540
Version:
1.1.4.0
Modules
Images
c:\users\admin\desktop\screen lock builder.exe
c:\systemroot\system32\ntdll.dll
3836"C:\Users\admin\Desktop\LockBuild.exe" C:\Users\admin\Desktop\LockBuild.exe—explorer.exe
User:
admin
Company:
vg4356vc356
Integrity Level:
MEDIUM
Description:
j87567h8
Exit code:
0
Version:
2.7.2.5
Modules
Images
c:\users\admin\desktop\lockbuild.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
Total events
1 206
Read events
1 071
Write events
129
Delete events
6

Modification events

(PID) Process:(972) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:writeName:ShellExtBMP
Value:
(PID) Process:(972) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:writeName:ShellExtIcon
Value:
(PID) Process:(972) WinRAR.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(972) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:writeName:0
Value:
C:\Users\admin\AppData\Local\Temp\Screen Lock Builder.zip
(PID) Process:(972) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:name
Value:
120
(PID) Process:(972) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:size
Value:
80
(PID) Process:(972) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:type
Value:
120
(PID) Process:(972) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:mtime
Value:
100
(PID) Process:(972) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\DialogEditHistory\ExtrPath
Operation:writeName:0
Value:
C:\Users\admin\Desktop
(PID) Process:(972) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\Interface\MainWin
Operation:writeName:Placement
Value:
2C0000000000000001000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF42000000420000000204000037020000
Executable files
4
Suspicious files
0
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
2372Screen Lock Builder.exeC:\Users\admin\Desktop\RCXA584.tmp —
MD5:—
SHA256:—
2372Screen Lock Builder.exeC:\Users\admin\Desktop\LockBuild.exeexecutable
MD5:—
SHA256:—
972WinRAR.exeC:\Users\admin\Desktop\Screen Lock Builder.exeexecutable
MD5:DCE8F661E46286DD6BA4EA9268CBA62A
SHA256:E9A2F09C7A7D3042608D9283D213750207EB301EBE17EEEFE5503B72E54F8892
972WinRAR.exeC:\Users\admin\Desktop\Stub.exeexecutable
MD5:680BA4A8B0B3DD1BB2FE055DFA0DD05B
SHA256:B0723421D059B21943EE3250193DB0300FC293BACA73F5D2B349C5EE74D6FBB1
2372Screen Lock Builder.exeC:\Users\admin\Desktop\RandomICON.icoimage
MD5:—
SHA256:—
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
3

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2372
Screen Lock Builder.exe
GET
301
104.23.99.190:80
http://pastebin.com/raw.php?i=XUQXmg45
US
—
—
malicious
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2372
Screen Lock Builder.exe
104.23.99.190:443
pastebin.com
Cloudflare Inc
US
malicious
2372
Screen Lock Builder.exe
104.23.99.190:80
pastebin.com
Cloudflare Inc
US
malicious

DNS requests

Domain
IP
Reputation
pastebin.com
  • 104.23.99.190
  • 104.23.98.190
malicious

Threats

PID
Process
Class
Message
2372
Screen Lock Builder.exe
Misc activity
SUSPICIOUS [PTsecurity] Minimal HTTP Header for Request to Pastebin
2 ETPRO signatures available at the full report
No debug info
Interactive malware hunting service ANY.RUN
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Reports
Screen Lock Builder.zip