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URL:

http://23.95.122.79/_msoffice10/csrss.exe

Full analysis: https://app.any.run/tasks/9021ed33-5f42-4a4b-8428-6d91e0ee386d
Verdict: Malicious activity
Threats:

A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection.

Malware Trends Tracker     >>>
Analysis date: June 27, 2022, 06:34:47
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
opendir
loader
Indicators:
MD5:

AE5259C5640E0624323CA1CFE13D8BBC

SHA1:

D27E68EFC3115DEA83B9103E8FC5BB7611ED10CE

SHA256:

7608FC6B9857C8580DF45A6C8350DAE3D9C67CCFD7D319D09E179947A3E20027

SSDEEP:

3:N1KbhLOXrK6IBTUiCn:CJ4rhIBwiC

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

      • iexplore.exe (PID: 3708)
      • iexplore.exe (PID: 2800)

    • Application was dropped or rewritten from another process

      • csrss.exe (PID: 3832)
      • csrss.exe (PID: 1612)

  • SUSPICIOUS

    • Reads Microsoft Outlook installation path

      • iexplore.exe (PID: 3708)

    • Executable content was dropped or overwritten

      • iexplore.exe (PID: 3708)
      • iexplore.exe (PID: 2800)

    • Drops a file with a compile date too recent

      • iexplore.exe (PID: 3708)
      • iexplore.exe (PID: 2800)

    • Checks supported languages

      • csrss.exe (PID: 3832)
      • csrss.exe (PID: 1612)

    • Reads the computer name

      • csrss.exe (PID: 3832)
      • csrss.exe (PID: 1612)

  • INFO

    • Reads the computer name

      • iexplore.exe (PID: 2800)
      • iexplore.exe (PID: 3708)
      • explorer.exe (PID: 3840)

    • Checks supported languages

      • iexplore.exe (PID: 3708)
      • iexplore.exe (PID: 2800)
      • explorer.exe (PID: 3840)

    • Changes internet zones settings

      • iexplore.exe (PID: 2800)

    • Application launched itself

      • iexplore.exe (PID: 2800)

    • Reads settings of System Certificates

      • iexplore.exe (PID: 2800)

    • Reads internet explorer settings

      • iexplore.exe (PID: 3708)

    • Checks Windows Trust Settings

      • iexplore.exe (PID: 2800)

    • Modifies the phishing filter of IE

      • iexplore.exe (PID: 2800)

    • Reads the date of Windows installation

      • iexplore.exe (PID: 2800)

    • Changes settings of System certificates

      • iexplore.exe (PID: 2800)

    • Manual execution by user

      • explorer.exe (PID: 3840)
      • csrss.exe (PID: 3832)
      • csrss.exe (PID: 1612)

    • Adds / modifies Windows certificates

      • iexplore.exe (PID: 2800)

    • Dropped object may contain Bitcoin addresses

      • iexplore.exe (PID: 2800)

    • Creates files in the user directory

      • iexplore.exe (PID: 2800)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
46
Monitored processes
5
Malicious processes
1
Suspicious processes
3

Behavior graph

Click at the process to see the details
start iexplore.exe iexplore.exe explorer.exe no specs csrss.exe csrss.exe

Process information

PID
CMD
Path
Indicators
Parent process
2800"C:\Program Files\Internet Explorer\iexplore.exe" "http://23.95.122.79/_msoffice10/csrss.exe"C:\Program Files\Internet Explorer\iexplore.exe
Explorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Internet Explorer
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
3708"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:2800 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)
3840"C:\Windows\explorer.exe" C:\Windows\explorer.exe—Explorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3832"C:\Users\admin\Downloads\csrss.exe" C:\Users\admin\Downloads\csrss.exe
Explorer.EXE
User:
admin
Company:
Simon Tatham
Integrity Level:
HIGH
Description:
SSH, Telnet and Rlogin client
Exit code:
0
Version:
Release 0.73 (with embedded help)
1612"C:\Users\admin\Downloads\csrss.exe" C:\Users\admin\Downloads\csrss.exe
Explorer.EXE
User:
admin
Company:
Simon Tatham
Integrity Level:
HIGH
Description:
SSH, Telnet and Rlogin client
Exit code:
0
Version:
Release 0.73 (with embedded help)
Total events
7 810
Read events
7 672
Write events
0
Delete events
0

Modification events

No data
Executable files
2
Suspicious files
10
Text files
16
Unknown types
5

Dropped files

PID
Process
Filename
Type
2800iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\6BADA8974A10C4BD62CC921D13E43B18_711ED44619924BA6DC33E69F97E7FF63der
MD5:28CC3D4B0DA8A29A9DCD6D4755C84342
SHA256:A4CA2DD1D4545838F7A9102623442BC76BDEB2185E9991A294BCB0B6456DDA0E
2800iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776binary
MD5:E01AD31DC4C9A00026BBE57F5E1BF4B5
SHA256:7B209D25B2BE0383F2C08256FC1D7167030828BD65A5DB4CFE51E6207BB7500F
3708iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\DY534W2X\csrss[1].exeexecutable
MD5:99B9884963A8B93248C84931CBC7CEDC
SHA256:CDFE894417887FF5B0D85643FFE15F0C26F6A0071A5C27EA7EA88F5066D26384
2800iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\6BADA8974A10C4BD62CC921D13E43B18_711ED44619924BA6DC33E69F97E7FF63binary
MD5:76F4D59B714565392B6E9E447DC393E2
SHA256:FE83538FDB56A24BFE68A19003CC66F747EFF825F481C506200F3AB8B1D33646
2800iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157binary
MD5:157B45C60CE84843DCBBA497FB820475
SHA256:0C61C9C356D044D1D593172DEF95FD70AA8D79C6BA41AD6B610C9D49812C4625
2800iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Internet Explorer\Recovery\Active\{48523090-F5E3-11EC-B490-18C4897E77EE}.datbinary
MD5:DFEB13AC799E920CB42F5C05A25E0D38
SHA256:4061C3A741BADF77437804CBC446A5103A9DFBB7C8EA1664C382EE0038B2A156
2800iexplore.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\ID08F9HW.txttext
MD5:3C6411679673702D40CB068CA3B2C448
SHA256:04E96AA286AF9E5B597D7CA363CCAB38C74A83C94899D1CD203BF1D08740114F
2800iexplore.exeC:\Users\admin\AppData\Local\Temp\~DF43020C5968D327C6.TMPgmc
MD5:4E352BC09C8F337909D633F19AE60EDE
SHA256:4C95FEC841B6F13592A42FEDF94637EBAE01C97D5628C3243F362E6B92DC6E1D
2800iexplore.exeC:\Users\admin\Downloads\csrss.exe.6se07x3.partial:Zone.Identifiertext
MD5:FBCCF14D504B7B2DBCB5A5BDA75BD93B
SHA256:EACD09517CE90D34BA562171D15AC40D302F0E691B439F91BE1B6406E25F5913
2800iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verF82.tmpxml
MD5:CBD0581678FA40F0EDCBC7C59E0CAD10
SHA256:159BD4343F344A08F6AF3B716B6FA679859C1BD1D7030D26FF5EF0255B86E1D9
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
6
TCP/UDP connections
23
DNS requests
10
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2800
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
US
der
471 b
whitelisted
2800
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEA8Ull8gIGmZT9XHrHiJQeI%3D
US
der
1.47 Kb
whitelisted
2800
iexplore.exe
GET
200
8.238.155.254:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?c83c962df75816b0
US
compressed
4.70 Kb
whitelisted
2800
iexplore.exe
GET
200
67.26.115.254:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?2e50a28c016993cb
US
compressed
4.70 Kb
whitelisted
2800
iexplore.exe
GET
200
93.184.220.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEALnkXH7gCHpP%2BLZg4NMUMA%3D
US
der
471 b
whitelisted
3708
iexplore.exe
GET
200
23.95.122.79:80
http://23.95.122.79/_msoffice10/csrss.exe
US
executable
1.05 Mb
suspicious
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2800
iexplore.exe
152.199.19.161:443
r20swj13mr.microsoft.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
3708
iexplore.exe
23.95.122.79:80
—
ColoCrossing
US
suspicious
2800
iexplore.exe
131.253.33.200:443
www.bing.com
Microsoft Corporation
US
whitelisted
2800
iexplore.exe
93.184.220.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
2800
iexplore.exe
67.26.115.254:80
ctldl.windowsupdate.com
Level 3 Communications, Inc.
US
unknown
2800
iexplore.exe
8.238.155.254:80
ctldl.windowsupdate.com
Level 3 Communications, Inc.
US
suspicious
2800
iexplore.exe
204.79.197.200:443
ieonline.microsoft.com
Microsoft Corporation
US
whitelisted
2800
iexplore.exe
104.92.93.19:443
go.microsoft.com
Akamai Technologies, Inc.
NL
unknown
2800
iexplore.exe
20.25.53.147:443
query.prod.cms.msn.com
—
US
unknown
2800
iexplore.exe
13.107.40.203:443
www.msn.com
Microsoft Corporation
US
whitelisted

DNS requests

Domain
IP
Reputation
api.bing.com
  • 13.107.5.80
whitelisted
www.bing.com
  • 131.253.33.200
  • 13.107.22.200
whitelisted
ctldl.windowsupdate.com
  • 67.26.115.254
  • 8.238.155.254
  • 8.248.103.254
  • 8.248.101.254
  • 67.27.213.126
whitelisted
ocsp.digicert.com
  • 93.184.220.29
whitelisted
r20swj13mr.microsoft.com
  • 152.199.19.161
whitelisted
iecvlist.microsoft.com
  • 152.199.19.161
whitelisted
ieonline.microsoft.com
  • 204.79.197.200
whitelisted
go.microsoft.com
  • 104.92.93.19
whitelisted
www.msn.com
  • 13.107.40.203
whitelisted
query.prod.cms.msn.com
  • 20.25.53.147
whitelisted

Threats

PID
Process
Class
Message
3708
iexplore.exe
A Network Trojan was detected
ET INFO Executable Download from dotted-quad Host
3708
iexplore.exe
Potentially Bad Traffic
ET INFO Suspicious csrss.exe in URI
3708
iexplore.exe
Potential Corporate Privacy Violation
ET POLICY PE EXE or DLL Windows file download HTTP
3708
iexplore.exe
Potentially Bad Traffic
ET INFO SUSPICIOUS Dotted Quad Host MZ Response
No debug info
Interactive malware hunting service ANY.RUN
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Reports
http://23.95.122.79/_msoffice10/csrss.exe