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URL:

https://www.dropbox.com/scl/fi/l4vl5su57ae16mnp8gtp2/You-have-been-invited-you-to-view-the-folder-“PO48668_48110".paper?dl=0&rlkey=22ig9ju0fj6e37g1w0ttxxuzp

Full analysis: https://app.any.run/tasks/ae498466-23b3-4107-98f4-c67b931198c3
Verdict: Malicious activity
Analysis date: August 12, 2022, 22:34:26
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MD5:

78482AAD38061F396381D9F6B198E262

SHA1:

C2C0CCA3BEB22A6A08B43654CFE5CB3B1A06DB8F

SHA256:

D656CCDFCEC0518CA06A064AB6D6A414BDBB681CAE13F2184FD0865DB56B805C

SSDEEP:

3:N8DSLcVHGkG67p20VXK8+UdnQkIRpTB7UD9pqdT5HxAc8qQVfAktdQn:2OLHk1g2K81dcRPASRlqHtdQn

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

    • Drops executable file immediately after starts

      • firefox.exe (PID: 3076)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • firefox.exe (PID: 3076)

    • Drops a file with a compile date too recent

      • firefox.exe (PID: 3076)

  • INFO

    • Reads the computer name

      • firefox.exe (PID: 3076)
      • firefox.exe (PID: 2848)
      • firefox.exe (PID: 2064)
      • firefox.exe (PID: 3612)
      • firefox.exe (PID: 2956)
      • firefox.exe (PID: 524)
      • firefox.exe (PID: 356)

    • Reads CPU info

      • firefox.exe (PID: 3076)

    • Checks supported languages

      • firefox.exe (PID: 3076)
      • firefox.exe (PID: 2972)
      • firefox.exe (PID: 2064)
      • firefox.exe (PID: 2848)
      • firefox.exe (PID: 3612)
      • firefox.exe (PID: 356)
      • firefox.exe (PID: 524)
      • firefox.exe (PID: 2956)

    • Application launched itself

      • firefox.exe (PID: 2972)
      • firefox.exe (PID: 3076)

    • Creates files in the program directory

      • firefox.exe (PID: 3076)

    • Reads the date of Windows installation

      • firefox.exe (PID: 3076)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
42
Monitored processes
8
Malicious processes
1
Suspicious processes
1

Behavior graph

Click at the process to see the details
start firefox.exe no specs firefox.exe firefox.exe no specs firefox.exe no specs firefox.exe no specs firefox.exe no specs firefox.exe no specs firefox.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2972"C:\Program Files\Mozilla Firefox\firefox.exe" "https://www.dropbox.com/scl/fi/l4vl5su57ae16mnp8gtp2/You-have-been-invited-you-to-view-the-folder-“PO48668_48110".paper?dl=0&rlkey=22ig9ju0fj6e37g1w0ttxxuzp"C:\Program Files\Mozilla Firefox\firefox.exe—Explorer.EXE
User:
admin
Company:
Mozilla Corporation
Integrity Level:
MEDIUM
Description:
Firefox
Exit code:
0
Version:
83.0
Modules
Images
c:\program files\mozilla firefox\firefox.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\mozilla firefox\mozglue.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\crypt32.dll
3076"C:\Program Files\Mozilla Firefox\firefox.exe" https://www.dropbox.com/scl/fi/l4vl5su57ae16mnp8gtp2/You-have-been-invited-you-to-view-the-folder-“PO48668_48110.paper?dl=0&rlkey=22ig9ju0fj6e37g1w0ttxxuzpC:\Program Files\Mozilla Firefox\firefox.exe
firefox.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
MEDIUM
Description:
Firefox
Version:
83.0
Modules
Images
c:\program files\mozilla firefox\firefox.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\mozilla firefox\mozglue.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\crypt32.dll
2064"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3076.0.800064980\632640674" -parentBuildID 20201112153044 -prefsHandle 840 -prefMapHandle 1120 -prefsLen 1 -prefMapSize 238726 -appdir "C:\Program Files\Mozilla Firefox\browser" - 3076 "\\.\pipe\gecko-crash-server-pipe.3076" 1180 gpuC:\Program Files\Mozilla Firefox\firefox.exe—firefox.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
MEDIUM
Description:
Firefox
Version:
83.0
Modules
Images
c:\program files\mozilla firefox\firefox.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\program files\mozilla firefox\mozglue.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\crypt32.dll
2848"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3076.6.1665741661\1312598905" -childID 1 -isForBrowser -prefsHandle 3068 -prefMapHandle 3064 -prefsLen 245 -prefMapSize 238726 -parentBuildID 20201112153044 -appdir "C:\Program Files\Mozilla Firefox\browser" - 3076 "\\.\pipe\gecko-crash-server-pipe.3076" 3080 tabC:\Program Files\Mozilla Firefox\firefox.exe—firefox.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
LOW
Description:
Firefox
Version:
83.0
Modules
Images
c:\program files\mozilla firefox\firefox.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\mozilla firefox\mozglue.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\crypt32.dll
3612"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3076.13.1589072017\436757596" -childID 2 -isForBrowser -prefsHandle 2632 -prefMapHandle 2680 -prefsLen 6644 -prefMapSize 238726 -parentBuildID 20201112153044 -appdir "C:\Program Files\Mozilla Firefox\browser" - 3076 "\\.\pipe\gecko-crash-server-pipe.3076" 2564 tabC:\Program Files\Mozilla Firefox\firefox.exe—firefox.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
LOW
Description:
Firefox
Version:
83.0
Modules
Images
c:\program files\mozilla firefox\firefox.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\program files\mozilla firefox\mozglue.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\msasn1.dll
524"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3076.20.860997214\1477180254" -childID 3 -isForBrowser -prefsHandle 3472 -prefMapHandle 3348 -prefsLen 7399 -prefMapSize 238726 -parentBuildID 20201112153044 -appdir "C:\Program Files\Mozilla Firefox\browser" - 3076 "\\.\pipe\gecko-crash-server-pipe.3076" 3484 tabC:\Program Files\Mozilla Firefox\firefox.exe—firefox.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
LOW
Description:
Firefox
Version:
83.0
Modules
Images
c:\program files\mozilla firefox\firefox.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\mozilla firefox\mozglue.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\crypt32.dll
2956"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3076.21.224399396\2097528345" -childID 4 -isForBrowser -prefsHandle 3492 -prefMapHandle 3476 -prefsLen 7399 -prefMapSize 238726 -parentBuildID 20201112153044 -appdir "C:\Program Files\Mozilla Firefox\browser" - 3076 "\\.\pipe\gecko-crash-server-pipe.3076" 3576 tabC:\Program Files\Mozilla Firefox\firefox.exe—firefox.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
LOW
Description:
Firefox
Exit code:
0
Version:
83.0
Modules
Images
c:\program files\mozilla firefox\firefox.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\mozilla firefox\mozglue.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\crypt32.dll
356"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3076.34.2010446078\1668864847" -childID 5 -isForBrowser -prefsHandle 3724 -prefMapHandle 3720 -prefsLen 7399 -prefMapSize 238726 -parentBuildID 20201112153044 -appdir "C:\Program Files\Mozilla Firefox\browser" - 3076 "\\.\pipe\gecko-crash-server-pipe.3076" 3736 tabC:\Program Files\Mozilla Firefox\firefox.exe—firefox.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
LOW
Description:
Firefox
Version:
83.0
Modules
Images
c:\program files\mozilla firefox\firefox.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\mozilla firefox\mozglue.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\crypt32.dll
c:\windows\system32\rpcrt4.dll
Total events
10 158
Read events
10 134
Write events
24
Delete events
0

Modification events

(PID) Process:(2972) firefox.exeKey:HKEY_CURRENT_USER\Software\Mozilla\Firefox\Launcher
Operation:writeName:C:\Program Files\Mozilla Firefox\firefox.exe|Launcher
Value:
8E32950906000000
(PID) Process:(3076) firefox.exeKey:HKEY_CURRENT_USER\Software\Mozilla\Firefox\Launcher
Operation:writeName:C:\Program Files\Mozilla Firefox\firefox.exe|Browser
Value:
073C950906000000
(PID) Process:(3076) firefox.exeKey:HKEY_CURRENT_USER\Software\Mozilla\Firefox\Launcher
Operation:writeName:C:\Program Files\Mozilla Firefox\firefox.exe|Telemetry
Value:
0
(PID) Process:(3076) firefox.exeKey:HKEY_CURRENT_USER\Software\Mozilla\Firefox\DllPrefetchExperiment
Operation:writeName:C:\Program Files\Mozilla Firefox\firefox.exe
Value:
0
(PID) Process:(3076) firefox.exeKey:HKEY_CURRENT_USER\Software\Mozilla\Firefox\Default Browser Agent
Operation:writeName:C:\Program Files\Mozilla Firefox|DisableTelemetry
Value:
1
(PID) Process:(3076) firefox.exeKey:HKEY_CURRENT_USER\Software\Mozilla\Firefox\Default Browser Agent
Operation:writeName:C:\Program Files\Mozilla Firefox|DisableDefaultBrowserAgent
Value:
0
(PID) Process:(3076) firefox.exeKey:HKEY_CURRENT_USER\Software\Mozilla\Firefox\Default Browser Agent
Operation:writeName:C:\Program Files\Mozilla Firefox|ServicesSettingsServer
Value:
https://firefox.settings.services.mozilla.com/v1
(PID) Process:(3076) firefox.exeKey:HKEY_CURRENT_USER\Software\Mozilla\Firefox\Default Browser Agent
Operation:writeName:C:\Program Files\Mozilla Firefox|SecurityContentSignatureRootHash
Value:
97:E8:BA:9C:F1:2F:B3:DE:53:CC:42:A4:E6:57:7E:D6:4D:F4:93:C2:47:B4:14:FE:A0:36:81:8D:38:23:56:0E
(PID) Process:(3076) firefox.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
Operation:writeName:ProxyEnable
Value:
0
(PID) Process:(3076) firefox.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections
Operation:writeName:SavedLegacySettings
Value:
460000003B010000090000000000000000000000000000000400000000000000C0E333BBEAB1D3010000000000000000000000000100000002000000C0A80164000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
Executable files
4
Suspicious files
152
Text files
36
Unknown types
34

Dropped files

PID
Process
Filename
Type
3076firefox.exeC:\Users\admin\AppData\Local\Mozilla\Firefox\Profiles\qldyz51w.default\startupCache\scriptCache-current.bin —
MD5:—
SHA256:—
3076firefox.exeC:\Users\admin\AppData\Roaming\Mozilla\Firefox\Profiles\qldyz51w.default\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite —
MD5:—
SHA256:—
3076firefox.exeC:\Users\admin\AppData\Local\Temp\mz_etilqs_AfPh6o3Yj3UXRRObinary
MD5:5D44BA00AE7BC47B0C91054ABC906E9E
SHA256:620938889B725D38698AA00C2B659BF63FEC002F6B4159431139DC7A4CF30436
3076firefox.exeC:\Users\admin\AppData\Roaming\Mozilla\Firefox\Profiles\qldyz51w.default\prefs.jstext
MD5:299A2B747C11E4BDA194E563FEA4A699
SHA256:94EE461F62E8B4A0A65471A41E10C8C56722B73C0A019D76ACA7F5BAF109813E
3076firefox.exeC:\Users\admin\AppData\Roaming\Mozilla\Firefox\Profiles\qldyz51w.default\prefs-1.jstext
MD5:299A2B747C11E4BDA194E563FEA4A699
SHA256:94EE461F62E8B4A0A65471A41E10C8C56722B73C0A019D76ACA7F5BAF109813E
3076firefox.exeC:\Users\admin\AppData\Local\Mozilla\Firefox\Profiles\qldyz51w.default\startupCache\urlCache-current.binbinary
MD5:994A33896BB41A278A315D0D796422B6
SHA256:54EC50A20FFF8CC016710E49437CF6A11D3FE5EE7B28C185E4A9AAFEE2908B63
3076firefox.exeC:\Users\admin\AppData\Roaming\Mozilla\Firefox\Profiles\qldyz51w.default\sessionCheckpoints.json.tmpbinary
MD5:EA8B62857DFDBD3D0BE7D7E4A954EC9A
SHA256:792955295AE9C382986222C6731C5870BD0E921E7F7E34CC4615F5CD67F225DA
3076firefox.exeC:\Users\admin\AppData\Roaming\Mozilla\Firefox\Profiles\qldyz51w.default\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite-shmbinary
MD5:B7C14EC6110FA820CA6B65F5AEC85911
SHA256:FD4C9FDA9CD3F9AE7C962B0DDF37232294D55580E1AA165AA06129B8549389EB
3076firefox.exeC:\Users\admin\AppData\Roaming\Mozilla\Firefox\Profiles\qldyz51w.default\cookies.sqlite-shmbinary
MD5:B7C14EC6110FA820CA6B65F5AEC85911
SHA256:FD4C9FDA9CD3F9AE7C962B0DDF37232294D55580E1AA165AA06129B8549389EB
3076firefox.exeC:\Users\admin\AppData\Local\Mozilla\Firefox\Profiles\qldyz51w.default\settings\main\ms-language-packs\asrouter.ftltext
MD5:C460716B62456449360B23CF5663F275
SHA256:0EC0F16F92D876A9C1140D4C11E2B346A9292984D9A854360E54E99FDCD99CC0
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
23
TCP/UDP connections
86
DNS requests
134
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3076
firefox.exe
POST
200
93.184.220.29:80
http://ocsp.digicert.com/
US
der
471 b
whitelisted
3076
firefox.exe
POST
200
93.184.220.29:80
http://ocsp.digicert.com/
US
der
471 b
whitelisted
3076
firefox.exe
POST
200
142.250.185.131:80
http://ocsp.pki.goog/gts1c3
US
der
472 b
whitelisted
3076
firefox.exe
GET
200
34.107.221.82:80
http://detectportal.firefox.com/success.txt
US
text
8 b
whitelisted
3076
firefox.exe
POST
200
142.250.185.131:80
http://ocsp.pki.goog/gts1c3
US
der
472 b
whitelisted
3076
firefox.exe
POST
200
93.184.220.29:80
http://ocsp.digicert.com/
US
der
471 b
whitelisted
3076
firefox.exe
POST
200
104.18.24.243:80
http://ocsp.msocsp.com/
US
der
1.70 Kb
whitelisted
3076
firefox.exe
POST
200
93.184.220.29:80
http://ocsp.digicert.com/
US
der
471 b
whitelisted
3076
firefox.exe
POST
200
93.184.220.29:80
http://ocsp.digicert.com/
US
der
471 b
whitelisted
3076
firefox.exe
POST
200
93.184.220.29:80
http://ocsp.digicert.com/
US
der
471 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
3076
firefox.exe
34.107.221.82:80
detectportal.firefox.com
—
US
whitelisted
3076
firefox.exe
93.184.220.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
3076
firefox.exe
142.250.186.170:443
safebrowsing.googleapis.com
Google Inc.
US
whitelisted
3076
firefox.exe
13.224.189.54:443
firefox.settings.services.mozilla.com
—
US
suspicious
3076
firefox.exe
13.225.78.78:443
content-signature-2.cdn.mozilla.net
—
US
suspicious
3076
firefox.exe
162.125.66.18:443
www.dropbox.com
Dropbox, Inc.
DE
suspicious
3076
firefox.exe
54.184.13.11:443
location.services.mozilla.com
Amazon.com, Inc.
US
unknown
3076
firefox.exe
142.250.185.131:80
ocsp.pki.goog
Google Inc.
US
whitelisted
3076
firefox.exe
13.224.189.113:443
snippets.cdn.mozilla.net
—
US
suspicious
3076
firefox.exe
13.225.78.55:443
paper.dropboxstatic.com
—
US
suspicious

DNS requests

Domain
IP
Reputation
detectportal.firefox.com
  • 34.107.221.82
whitelisted
www.dropbox.com
  • 162.125.66.18
shared
prod.detectportal.prod.cloudops.mozgcp.net
  • 34.107.221.82
  • 2600:1901:0:38d7::
whitelisted
www-env.dropbox-dns.com
  • 162.125.66.18
  • 2620:100:6022:18::a27d:4212
whitelisted
firefox.settings.services.mozilla.com
  • 13.224.189.54
  • 13.224.189.76
  • 13.224.189.71
  • 13.224.189.85
whitelisted
location.services.mozilla.com
  • 54.184.13.11
  • 44.241.228.251
  • 35.162.19.172
  • 34.213.44.137
  • 35.167.105.243
  • 52.35.17.16
whitelisted
locprod2-elb-us-west-2.prod.mozaws.net
  • 52.35.17.16
  • 35.167.105.243
  • 34.213.44.137
  • 35.162.19.172
  • 44.241.228.251
  • 54.184.13.11
whitelisted
ocsp.digicert.com
  • 93.184.220.29
whitelisted
cs9.wac.phicdn.net
  • 93.184.220.29
whitelisted
content-signature-2.cdn.mozilla.net
  • 13.225.78.78
  • 13.225.78.8
  • 13.225.78.104
  • 13.225.78.106
whitelisted

Threats

PID
Process
Class
Message
3076
firefox.exe
Potentially Bad Traffic
ET INFO Terse Request for .txt - Likely Hostile
3076
firefox.exe
Potential Corporate Privacy Violation
ET POLICY Dropbox.com Offsite File Backup in Use
3076
firefox.exe
Potentially Bad Traffic
ET INFO Terse Request for .txt - Likely Hostile
3076
firefox.exe
Potential Corporate Privacy Violation
ET POLICY Dropbox.com Offsite File Backup in Use
—
—
Potentially Bad Traffic
ET INFO Observed DNS Query to .cloud TLD
—
—
Potentially Bad Traffic
ET INFO Observed DNS Query to .cloud TLD
—
—
Potentially Bad Traffic
ET INFO DNS Query for Suspicious .ga Domain
3076
firefox.exe
Potentially Bad Traffic
ET INFO Suspicious Domain (*.ga) in TLS SNI
3076
firefox.exe
Potentially Bad Traffic
ET INFO Terse Request for .txt - Likely Hostile
3076
firefox.exe
Potentially Bad Traffic
ET INFO Terse Request for .txt - Likely Hostile
No debug info
Interactive malware hunting service ANY.RUN
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ANY.RUN
Reports
https://www.dropbox.com/scl/fi/l4vl5su57ae16mnp8gtp2/You-have-been-invited-you-to-view-the-folder-“PO48668_48110".paper?dl=0&rlkey=22ig9ju0fj6e37g1w0ttxxuzp