URL:

https://webattach.mail.yandex.net/message_part_real/?sid=YWVzX3NpZDp7ImFlc0tleUlkIjoiMTc4IiwiaG1hY0tleUlkIjoiMTc4IiwiaXZCYXNlNjQiOiJNdi95d0ErRWRXRVVaY1lPdnMzazV3PT0iLCJzaWRCYXNlNjQiOiJHYjJvVVpnMTY5S1l6dXV0VDlYNTNPTWk5S2Y4REJkdjVBVHU2NjR2U1c4K0VicnkvM0hmOVZjbVNUYkJpaWh3VDNEcEgybU9FU2ErM1VFaUZ2OVViWUMrYkZqTVBPRnlMUlBHYVUzSW1jR1dQdGFkc1VnMG8vRUU4SHE4bitPTCIsImhtYWNCYXNlNjQiOiJpc25wQmZpM1loWUtmeVNMZzR4UUZOUytLb1llV0tuRzRRbk52S3Bvc1ZJPSJ9&name=Emision-de-factura1103.zip

Full analysis: https://app.any.run/tasks/85091d5d-382d-412a-9c3a-454720ca55aa
Verdict: Malicious activity
Threats:

Trojans are a group of malicious programs distinguished by their ability to masquerade as benign software. Depending on their type, trojans possess a variety of capabilities, ranging from maintaining full remote control over the victim’s machine to stealing data and files, as well as dropping other malware. At the same time, the main functionality of each trojan family can differ significantly depending on its type. The most common trojan infection chain starts with a phishing email.

Analysis date: March 26, 2021, 18:58:02
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
trojan
ursa
Indicators:
MD5:

AC5B31F0365DB54CB1492D3CD7529B8C

SHA1:

F9A45110064ED00D9A40B8A23F0AE788210E663B

SHA256:

9242AD943D68071D355DD5B2395C1D380508011F344B693A0B5FFDE40A66988F

SSDEEP:

12:2iWFTj+JpVy3GnMHtFsRgn1GB43OLAUNDY/AxQrCUbxrK9V:2iW52c3GctFCwy4eLAUNGUQrpNK9V

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

    • URSA was detected

      • WScript.exe (PID: 1140)
      • WScript.exe (PID: 2256)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • WinRAR.exe (PID: 2800)
    • Executes scripts

      • WinRAR.exe (PID: 2800)
  • INFO

    • Creates files in the user directory

      • iexplore.exe (PID: 2788)
    • Adds / modifies Windows certificates

      • iexplore.exe (PID: 2788)
    • Changes settings of System certificates

      • iexplore.exe (PID: 2788)
    • Reads settings of System Certificates

      • iexplore.exe (PID: 2788)
    • Changes internet zones settings

      • iexplore.exe (PID: 2788)
    • Modifies the phishing filter of IE

      • iexplore.exe (PID: 2788)
    • Application launched itself

      • iexplore.exe (PID: 2788)
    • Manual execution by user

      • notepad++.exe (PID: 1864)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
48
Monitored processes
7
Malicious processes
3
Suspicious processes
1

Behavior graph

Click at the process to see the details
start iexplore.exe iexplore.exe winrar.exe #URSA wscript.exe #URSA wscript.exe notepad++.exe gup.exe

Process information

PID
CMD
Path
Indicators
Parent process
1140"C:\Windows\System32\WScript.exe" "C:\Users\admin\AppData\Local\Temp\Rar$DIa2800.46281\Emision-de-factura1103.vbs" C:\Windows\System32\WScript.exe
WinRAR.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft ® Windows Based Script Host
Exit code:
0
Version:
5.8.7600.16385
Modules
Images
c:\windows\system32\wscript.exe
c:\systemroot\system32\ntdll.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\system32\user32.dll
c:\windows\system32\gdi32.dll
1864"C:\Program Files\Notepad++\notepad++.exe" "C:\Users\admin\Desktop\Emision-de-factura1103.vbs"C:\Program Files\Notepad++\notepad++.exe
explorer.exe
User:
admin
Company:
Don HO don.h@free.fr
Integrity Level:
MEDIUM
Description:
Notepad++ : a free (GNU) source code editor
Exit code:
0
Version:
7.51
Modules
Images
c:\program files\notepad++\notepad++.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.17514_none_41e6975e2bd6f2b2\comctl32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
1884"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:2788 CREDAT:267521 /prefetch:2C:\Program Files\Internet Explorer\iexplore.exe
iexplore.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Internet Explorer
Exit code:
0
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\api-ms-win-downlevel-advapi32-l1-1-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\sechost.dll
c:\windows\system32\iertutil.dll
1948"C:\Program Files\Notepad++\updater\gup.exe" -v7.51C:\Program Files\Notepad++\updater\gup.exe
notepad++.exe
User:
admin
Company:
Don HO don.h@free.fr
Integrity Level:
MEDIUM
Description:
GUP : a free (LGPL) Generic Updater
Exit code:
0
Version:
4.1
Modules
Images
c:\program files\notepad++\updater\gup.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\notepad++\updater\libcurl.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\nsi.dll
c:\windows\system32\wldap32.dll
2256"C:\Windows\System32\WScript.exe" "C:\Users\admin\AppData\Local\Temp\Rar$DIa2800.44463\Emision-de-factura1103.vbs" C:\Windows\System32\WScript.exe
WinRAR.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft ® Windows Based Script Host
Exit code:
0
Version:
5.8.7600.16385
Modules
Images
c:\windows\system32\wscript.exe
c:\systemroot\system32\ntdll.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\system32\user32.dll
c:\windows\system32\gdi32.dll
2788"C:\Program Files\Internet Explorer\iexplore.exe" https://webattach.mail.yandex.net/message_part_real/?sid=YWVzX3NpZDp7ImFlc0tleUlkIjoiMTc4IiwiaG1hY0tleUlkIjoiMTc4IiwiaXZCYXNlNjQiOiJNdi95d0ErRWRXRVVaY1lPdnMzazV3PT0iLCJzaWRCYXNlNjQiOiJHYjJvVVpnMTY5S1l6dXV0VDlYNTNPTWk5S2Y4REJkdjVBVHU2NjR2U1c4K0VicnkvM0hmOVZjbVNUYkJpaWh3VDNEcEgybU9FU2ErM1VFaUZ2OVViWUMrYkZqTVBPRnlMUlBHYVUzSW1jR1dQdGFkc1VnMG8vRUU4SHE4bitPTCIsImhtYWNCYXNlNjQiOiJpc25wQmZpM1loWUtmeVNMZzR4UUZOUytLb1llV0tuRzRRbk52S3Bvc1ZJPSJ9&name=Emision-de-factura1103.zipC:\Program Files\Internet Explorer\iexplore.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Internet Explorer
Exit code:
1
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\api-ms-win-downlevel-advapi32-l1-1-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\iertutil.dll
2800"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\Downloads\Emision-de-factura1103.zip"C:\Program Files\WinRAR\WinRAR.exe
iexplore.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\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\comdlg32.dll
Total events
1 869
Read events
1 739
Write events
127
Delete events
3

Modification events

(PID) Process:(2788) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateLowDateTime
Value:
234598646
(PID) Process:(2788) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateHighDateTime
Value:
30876274
(PID) Process:(2788) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content
Operation:writeName:CachePrefix
Value:
(PID) Process:(2788) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies
Operation:writeName:CachePrefix
Value:
Cookie:
(PID) Process:(2788) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History
Operation:writeName:CachePrefix
Value:
Visited:
(PID) Process:(2788) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
Operation:writeName:CompatibilityFlags
Value:
0
(PID) Process:(2788) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
Operation:writeName:ProxyEnable
Value:
0
(PID) Process:(2788) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections
Operation:writeName:SavedLegacySettings
Value:
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
(PID) Process:(2788) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(2788) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
Executable files
1
Suspicious files
23
Text files
7
Unknown types
8

Dropped files

PID
Process
Filename
Type
1884iexplore.exeC:\Users\admin\AppData\Local\Temp\Low\Cab9144.tmp
MD5:
SHA256:
1884iexplore.exeC:\Users\admin\AppData\Local\Temp\Low\Tar9145.tmp
MD5:
SHA256:
2788iexplore.exeC:\Users\admin\AppData\Local\Temp\~DF799D943F598EC0A7.TMP
MD5:
SHA256:
2788iexplore.exeC:\Users\admin\Downloads\Emision-de-factura1103.zip.lnumaz7.partial:Zone.Identifier
MD5:
SHA256:
2788iexplore.exeC:\Users\admin\AppData\Local\Temp\Cab7B56.tmp
MD5:
SHA256:
2788iexplore.exeC:\Users\admin\AppData\Local\Temp\Tar7B57.tmp
MD5:
SHA256:
2788iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver7B87.tmp
MD5:
SHA256:
1884iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\1B1F4BA66CDBFEC85A20E11BF729AF23_AA85F8F9DAFF33153B5AEC2E983B94B6der
MD5:
SHA256:
2788iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Internet Explorer\Recovery\Active\{39BAAE11-8E65-11EB-89FC-1203334A04AF}.datbinary
MD5:
SHA256:
2788iexplore.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\P40ZNUWP.txt
MD5:
SHA256:
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
13
TCP/UDP connections
18
DNS requests
10
Threats
4

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
1884
iexplore.exe
GET
200
2.16.186.163:80
http://subca.ocsp-certum.com/MFIwUDBOMEwwSjAJBgUrDgMCGgUABBTYOkzrrCGQj08njZXbUQQpkoUmuQQUCHbNywf%2FJPbFze27kLzihDdGdfcCEQDkBUeDDgxkUpdvejVJwN1I
unknown
der
1.63 Kb
whitelisted
1884
iexplore.exe
GET
200
2.16.186.163:80
http://subca.ocsp-certum.com/MFIwUDBOMEwwSjAJBgUrDgMCGgUABBR5iK7tYk9tqQEoeQhZNkKcAol9bgQUjEPEy22YwaechGnr30oNYJY6w%2FsCEQCTkoVAAWVxX5R%2FKI%2FvyZso
unknown
der
1.58 Kb
whitelisted
2788
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
US
der
471 b
whitelisted
2788
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
US
der
471 b
whitelisted
1884
iexplore.exe
GET
200
5.45.205.242:80
http://yandex.ocsp-responder.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBStniMGfahyWUWDEeSLUFbNR9JLAgQUN1zjGeCyjqGoTtLPq9Dc4wtcNU0CEDh%2F9%2B0CrNGg%2Fr6fh4sjNXg%3D
RU
der
1.48 Kb
whitelisted
2788
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEA%2BnRyLFPYjID1ie%2Bx%2BdSjo%3D
US
der
1.47 Kb
whitelisted
1048
svchost.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTfqhLjKLEJQZPin0KCzkdAQpVYowQUsT7DaQP4v0cB1JgmGggC72NkK8MCEAKXB1YM1Knrv%2BJy8eCW2II%3D
US
der
471 b
whitelisted
2788
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEA%2BnRyLFPYjID1ie%2Bx%2BdSjo%3D
US
der
1.47 Kb
whitelisted
1048
svchost.exe
GET
200
23.32.238.201:80
http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
US
compressed
57.2 Kb
whitelisted
2788
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
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
1884
iexplore.exe
87.250.251.147:443
webattach.mail.yandex.net
YANDEX LLC
RU
whitelisted
1884
iexplore.exe
2.16.186.163:80
subca.ocsp-certum.com
Akamai International B.V.
whitelisted
1884
iexplore.exe
5.45.205.242:80
yandex.ocsp-responder.com
YANDEX LLC
RU
whitelisted
1140
WScript.exe
5.196.188.129:80
OVH SAS
FR
malicious
2256
WScript.exe
5.196.188.129:80
OVH SAS
FR
malicious
2788
iexplore.exe
152.199.19.161:443
iecvlist.microsoft.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
1948
gup.exe
104.21.26.128:443
notepad-plus-plus.org
Cloudflare Inc
US
unknown
1048
svchost.exe
93.184.220.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
93.184.220.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
2788
iexplore.exe
93.184.220.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted

DNS requests

Domain
IP
Reputation
webattach.mail.yandex.net
  • 87.250.251.147
whitelisted
subca.ocsp-certum.com
  • 2.16.186.163
  • 2.16.186.232
whitelisted
yandex.ocsp-responder.com
  • 5.45.205.242
  • 5.45.205.241
  • 5.45.205.245
  • 5.45.205.244
  • 5.45.205.243
whitelisted
iecvlist.microsoft.com
  • 152.199.19.161
whitelisted
r20swj13mr.microsoft.com
  • 152.199.19.161
whitelisted
ocsp.digicert.com
  • 93.184.220.29
whitelisted
ieonline.microsoft.com
  • 204.79.197.200
whitelisted
notepad-plus-plus.org
  • 104.21.26.128
  • 172.67.136.69
whitelisted
www.download.windowsupdate.com
  • 23.32.238.201
  • 23.32.238.178
whitelisted

Threats

PID
Process
Class
Message
2256
WScript.exe
A Network Trojan was detected
LOADER [PTsecurity] Script.Ursa
1140
WScript.exe
A Network Trojan was detected
LOADER [PTsecurity] Script.Ursa
2 ETPRO signatures available at the full report
Process
Message
notepad++.exe
VerifyLibrary: C:\Program Files\Notepad++\SciLexer.dll
notepad++.exe
VerifyLibrary: certificate revocation checking is disabled
notepad++.exe
42C4C5846BB675C74E2B2C90C69AB44366401093