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URL:

https://mega.nz/#!nrBFRK7b!RYnscno_Sj3WMKqmXh0mY6jQpUeJOrGeAVK3U88soLM

Full analysis: https://app.any.run/tasks/ebd4ac16-29a0-49f9-bd9f-a8efd8cfd1bb
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.

Malware Trends Tracker     >>>
Analysis date: January 17, 2020, 22:51:18
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
ransomware
Indicators:
MD5:

D6BFDBBF2F285B265E69C95ADD7E311A

SHA1:

F3C4BB23F290257CFC0B004D5843DABE6649127E

SHA256:

BA4BD19035C1815F2D4983AE58C0FA085398C0427AC6759A0F5BE3E45934B5D6

SSDEEP:

3:N8X/iGEjLu95MIviMRKcswfWyo:290LuLM2YsfW7

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

      • LetsBuildRansomware.exe (PID: 3008)
      • Let'sBuildRansom.exe (PID: 1896)
      • RSW.exe (PID: 2092)
      • Desktop.exe (PID: 3368)

    • Disables Windows Defender

      • WScript.exe (PID: 252)

  • SUSPICIOUS

    • Reads Internet Cache Settings

      • Let'sBuildRansom.exe (PID: 1896)

    • Executable content was dropped or overwritten

      • LetsBuildRansomware.exe (PID: 3008)
      • Let'sBuildRansom.exe (PID: 1896)
      • WinRAR.exe (PID: 3200)
      • Desktop.exe (PID: 3368)

    • Creates files in the program directory

      • firefox.exe (PID: 1956)

    • Executes scripts

      • RSW.exe (PID: 2092)
      • cmd.exe (PID: 2068)

    • Changes the desktop background image

      • WScript.exe (PID: 3884)

    • Starts CMD.EXE for commands execution

      • RSW.exe (PID: 2092)
      • wscript.exe (PID: 1728)

    • Uses NETSH.EXE for network configuration

      • cmd.exe (PID: 1748)

    • Uses RUNDLL32.EXE to load library

      • WScript.exe (PID: 3884)

    • Creates files like Ransomware instruction

      • RSW.exe (PID: 2092)

    • Uses REG.EXE to modify Windows registry

      • cmd.exe (PID: 716)

  • INFO

    • Reads CPU info

      • firefox.exe (PID: 1956)

    • Application launched itself

      • firefox.exe (PID: 1956)

    • Manual execution by user

      • LetsBuildRansomware.exe (PID: 3008)
      • WinRAR.exe (PID: 3200)
      • Desktop.exe (PID: 3368)

    • Creates files in the user directory

      • firefox.exe (PID: 1956)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
74
Monitored processes
22
Malicious processes
2
Suspicious processes
1

Behavior graph

Click at the process to see the details
start drop and start drop and start firefox.exe no specs firefox.exe firefox.exe no specs firefox.exe firefox.exe firefox.exe winrar.exe no specs letsbuildransomware.exe let'sbuildransom.exe winrar.exe desktop.exe rsw.exe no specs cmd.exe no specs cmd.exe no specs netsh.exe no specs wscript.exe no specs wscript.exe no specs wscript.exe no specs wscript.exe no specs rundll32.exe no specs cmd.exe no specs reg.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2520"C:\Program Files\Mozilla Firefox\firefox.exe" "https://mega.nz/#!nrBFRK7b!RYnscno_Sj3WMKqmXh0mY6jQpUeJOrGeAVK3U88soLM"C:\Program Files\Mozilla Firefox\firefox.exe—explorer.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
MEDIUM
Description:
Firefox
Exit code:
0
Version:
68.0.1
1956"C:\Program Files\Mozilla Firefox\firefox.exe" https://mega.nz/#!nrBFRK7b!RYnscno_Sj3WMKqmXh0mY6jQpUeJOrGeAVK3U88soLMC:\Program Files\Mozilla Firefox\firefox.exe
firefox.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
MEDIUM
Description:
Firefox
Version:
68.0.1
964"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1956.0.502793132\701979972" -parentBuildID 20190717172542 -greomni "C:\Program Files\Mozilla Firefox\omni.ja" -appomni "C:\Program Files\Mozilla Firefox\browser\omni.ja" -appdir "C:\Program Files\Mozilla Firefox\browser" - 1956 "\\.\pipe\gecko-crash-server-pipe.1956" 1132 gpuC:\Program Files\Mozilla Firefox\firefox.exe—firefox.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
MEDIUM
Description:
Firefox
Version:
68.0.1
3976"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1956.3.1054923503\1254435007" -childID 1 -isForBrowser -prefsHandle 1688 -prefMapHandle 1684 -prefsLen 1 -prefMapSize 191824 -parentBuildID 20190717172542 -greomni "C:\Program Files\Mozilla Firefox\omni.ja" -appomni "C:\Program Files\Mozilla Firefox\browser\omni.ja" -appdir "C:\Program Files\Mozilla Firefox\browser" - 1956 "\\.\pipe\gecko-crash-server-pipe.1956" 1708 tabC:\Program Files\Mozilla Firefox\firefox.exe
firefox.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
LOW
Description:
Firefox
Version:
68.0.1
932"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1956.13.586133139\1519966725" -childID 2 -isForBrowser -prefsHandle 2924 -prefMapHandle 2928 -prefsLen 5996 -prefMapSize 191824 -parentBuildID 20190717172542 -greomni "C:\Program Files\Mozilla Firefox\omni.ja" -appomni "C:\Program Files\Mozilla Firefox\browser\omni.ja" -appdir "C:\Program Files\Mozilla Firefox\browser" - 1956 "\\.\pipe\gecko-crash-server-pipe.1956" 2944 tabC:\Program Files\Mozilla Firefox\firefox.exe
firefox.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
LOW
Description:
Firefox
Version:
68.0.1
3708"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1956.20.224251307\552169489" -childID 3 -isForBrowser -prefsHandle 3876 -prefMapHandle 3880 -prefsLen 7300 -prefMapSize 191824 -parentBuildID 20190717172542 -greomni "C:\Program Files\Mozilla Firefox\omni.ja" -appomni "C:\Program Files\Mozilla Firefox\browser\omni.ja" -appdir "C:\Program Files\Mozilla Firefox\browser" - 1956 "\\.\pipe\gecko-crash-server-pipe.1956" 3892 tabC:\Program Files\Mozilla Firefox\firefox.exe
firefox.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
LOW
Description:
Firefox
Version:
68.0.1
3936"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\LetsBuildRansomware.rar"C:\Program Files\WinRAR\WinRAR.exe—firefox.exe
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Exit code:
0
Version:
5.60.0
3008"C:\Users\admin\Desktop\rans\LetsBuildRansomware.exe" C:\Users\admin\Desktop\rans\LetsBuildRansomware.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
1896"C:\Users\admin\AppData\Local\Temp\Let'sBuildRansom.exe" C:\Users\admin\AppData\Local\Temp\Let'sBuildRansom.exe
LetsBuildRansomware.exe
User:
admin
Company:
Microsoft
Integrity Level:
HIGH
Description:
Let'sBuildRansom
Version:
1.0.0.0
3200"C:\Program Files\WinRAR\WinRAR.exe" a -ep1 -scul -r0 -iext -- . C:\Users\admin\Desktop\IMG1.jpg C:\Users\admin\Desktop\msg.rsw C:\Users\admin\Desktop\msgtxt.rsw C:\Users\admin\Desktop\preventchangedesktop.bat C:\Users\admin\Desktop\RSW.exe C:\Users\admin\Desktop\t.vbs C:\Users\admin\Desktop\task.vbs C:\Users\admin\Desktop\wallet.rsw C:\Users\admin\Desktop\windowdefender.vbs C:\Users\admin\Desktop\desktop.vbs C:\Users\admin\Desktop\exten.rsw C:\Users\admin\Desktop\IMG.jpgC:\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
Total events
3 410
Read events
3 200
Write events
0
Delete events
0

Modification events

No data
Executable files
5
Suspicious files
131
Text files
110
Unknown types
74

Dropped files

PID
Process
Filename
Type
1956firefox.exeC:\Users\admin\AppData\Local\Mozilla\Firefox\Profiles\qldyz51w.default\startupCache\scriptCache-current.bin —
MD5:—
SHA256:—
1956firefox.exeC:\Users\admin\AppData\Roaming\Mozilla\Firefox\Profiles\qldyz51w.default\cookies.sqlite-shm —
MD5:—
SHA256:—
1956firefox.exeC:\Users\admin\AppData\Roaming\Mozilla\Firefox\Profiles\qldyz51w.default\prefs-1.js —
MD5:—
SHA256:—
1956firefox.exeC:\Users\admin\AppData\Roaming\Mozilla\Firefox\Profiles\qldyz51w.default\sessionCheckpoints.json.tmp —
MD5:—
SHA256:—
1956firefox.exeC:\Users\admin\AppData\Roaming\Mozilla\Firefox\Profiles\qldyz51w.default\search.json.mozlz4.tmp —
MD5:—
SHA256:—
1956firefox.exeC:\Users\admin\AppData\Roaming\Mozilla\Firefox\Profiles\qldyz51w.default\prefs.jstext
MD5:354459382F30B8994109C88659DFA1F3
SHA256:E3E8E2B7E7EECA231620D83C70FA5A926E8B9CE74C51F595F71191DC0B50527E
1956firefox.exeC:\Users\admin\AppData\Local\Mozilla\Firefox\Profiles\qldyz51w.default\startupCache\scriptCache-child-current.binbinary
MD5:5027177F513CDAE07DB2330E1DED5934
SHA256:0C53F16051E738287A4612F68E296238087627E594CFD6DDFA1FECC2E998328B
1956firefox.exeC:\Users\admin\AppData\Local\Mozilla\Firefox\Profiles\qldyz51w.default\cache2\entries\486EDEB7EB98C1F19F6F093530829F1817EA3BDEder
MD5:6745069F30BB8AD55EA57F8918097FA4
SHA256:E9F62DE88C776696055DFAF568C98F2BF951ECA82E71450B34D78AEC9281B55B
1956firefox.exeC:\Users\admin\AppData\Local\Mozilla\Firefox\Profiles\qldyz51w.default\startupCache\urlCache-current.binbinary
MD5:DE9496ACA551ADE408EF6466A11833A1
SHA256:8F9C7FDB3E0BC01024E43A8E242468FC4DD4F74C725E32A883571635203DC10A
1956firefox.exeC:\Users\admin\AppData\Local\Temp\mz_etilqs_JupW2Rovhyfd34U —
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
15
TCP/UDP connections
40
DNS requests
92
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
1956
firefox.exe
POST
200
151.139.128.14:80
http://ocsp.comodoca.com/
US
der
471 b
whitelisted
1956
firefox.exe
POST
200
93.184.220.29:80
http://ocsp.digicert.com/
US
der
471 b
whitelisted
1956
firefox.exe
POST
200
151.139.128.14:80
http://ocsp.comodoca.com/
US
der
471 b
whitelisted
1956
firefox.exe
POST
200
93.184.220.29:80
http://ocsp.digicert.com/
US
der
471 b
whitelisted
1956
firefox.exe
POST
200
151.139.128.14:80
http://ocsp.comodoca.com/
US
der
471 b
whitelisted
1956
firefox.exe
POST
200
151.139.128.14:80
http://ocsp.comodoca.com/
US
der
471 b
whitelisted
1956
firefox.exe
POST
200
2.20.190.17:80
http://ocsp.int-x3.letsencrypt.org/
unknown
der
527 b
whitelisted
1956
firefox.exe
POST
200
151.139.128.14:80
http://ocsp.comodoca.com/
US
der
472 b
whitelisted
1956
firefox.exe
POST
200
216.58.210.3:80
http://ocsp.pki.goog/gts1o1
US
der
471 b
whitelisted
1956
firefox.exe
POST
200
151.139.128.14:80
http://ocsp.comodoca.com/
US
der
472 b
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
1956
firefox.exe
93.184.220.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
1956
firefox.exe
2.16.186.50:80
detectportal.firefox.com
Akamai International B.V.
—
whitelisted
1956
firefox.exe
31.216.148.10:443
mega.nz
Datacenter Luxembourg S.A.
LU
unknown
1956
firefox.exe
54.69.207.70:443
tiles.services.mozilla.com
Amazon.com, Inc.
US
unknown
1956
firefox.exe
151.139.128.14:80
ocsp.comodoca.com
Highwinds Network Group, Inc.
US
suspicious
1956
firefox.exe
143.204.101.27:443
snippets.cdn.mozilla.net
—
US
unknown
1956
firefox.exe
35.164.109.147:443
search.services.mozilla.com
Amazon.com, Inc.
US
unknown
1956
firefox.exe
31.216.148.13:443
eu.static.mega.co.nz
Datacenter Luxembourg S.A.
LU
unknown
1956
firefox.exe
13.224.196.69:443
firefox.settings.services.mozilla.com
—
US
unknown
1956
firefox.exe
2.20.190.17:80
ocsp.int-x3.letsencrypt.org
Akamai International B.V.
—
whitelisted

DNS requests

Domain
IP
Reputation
detectportal.firefox.com
  • 2.16.186.50
  • 2.16.186.112
whitelisted
mega.nz
  • 31.216.148.10
whitelisted
a1089.dscd.akamai.net
  • 2.16.186.112
  • 2.16.186.50
whitelisted
ocsp.int-x3.letsencrypt.org
  • 2.20.190.17
  • 2.20.189.244
whitelisted
a771.dscq.akamai.net
  • 2.20.189.244
  • 2.20.190.17
whitelisted
search.services.mozilla.com
  • 35.164.109.147
  • 52.89.218.39
  • 52.35.182.58
whitelisted
search.r53-2.services.mozilla.com
  • 52.35.182.58
  • 52.89.218.39
  • 35.164.109.147
whitelisted
push.services.mozilla.com
  • 34.208.208.167
whitelisted
autopush.prod.mozaws.net
  • 34.208.208.167
whitelisted
snippets.cdn.mozilla.net
  • 143.204.101.27
  • 143.204.101.25
  • 143.204.101.115
  • 143.204.101.106
whitelisted

Threats

PID
Process
Class
Message
—
—
Potentially Bad Traffic
ET INFO Observed DNS Query to .cloud TLD
—
—
Potentially Bad Traffic
ET INFO Observed DNS Query to .cloud TLD
No debug info
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Reports
https://mega.nz/#!nrBFRK7b!RYnscno_Sj3WMKqmXh0mY6jQpUeJOrGeAVK3U88soLM