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| URL: | http://23.95.122.79/_msoffice10/csrss.exe |
| Full analysis: | https://app.any.run/tasks/517ab4fb-710b-4f8a-9c70-b9c7298b224e |
| 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. |
| Analysis date: | June 27, 2022, 06:39:31 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MD5: | AE5259C5640E0624323CA1CFE13D8BBC |
| SHA1: | D27E68EFC3115DEA83B9103E8FC5BB7611ED10CE |
| SHA256: | 7608FC6B9857C8580DF45A6C8350DAE3D9C67CCFD7D319D09E179947A3E20027 |
| SSDEEP: | 3:N1KbhLOXrK6IBTUiCn:CJ4rhIBwiC |
MALICIOUS
Drops executable file immediately after starts
- iexplore.exe (PID: 2880)
- iexplore.exe (PID: 2604)
Application was dropped or rewritten from another process
- csrss.exe (PID: 1988)
SUSPICIOUS
Reads Microsoft Outlook installation path
- iexplore.exe (PID: 2880)
Drops a file with a compile date too recent
- iexplore.exe (PID: 2880)
- iexplore.exe (PID: 2604)
Executable content was dropped or overwritten
- iexplore.exe (PID: 2880)
- iexplore.exe (PID: 2604)
Modifies files in Chrome extension folder
- chrome.exe (PID: 2948)
Reads the computer name
- csrss.exe (PID: 1988)
Checks supported languages
- csrss.exe (PID: 1988)
Reads default file associations for system extensions
- chrome.exe (PID: 2672)
INFO
Reads the computer name
- iexplore.exe (PID: 2604)
- iexplore.exe (PID: 2880)
- explorer.exe (PID: 128)
- chrome.exe (PID: 2948)
- chrome.exe (PID: 596)
- chrome.exe (PID: 188)
- chrome.exe (PID: 2744)
- chrome.exe (PID: 3624)
- chrome.exe (PID: 2672)
- chrome.exe (PID: 456)
- chrome.exe (PID: 3284)
Checks supported languages
- iexplore.exe (PID: 2604)
- iexplore.exe (PID: 2880)
- explorer.exe (PID: 128)
- chrome.exe (PID: 1176)
- chrome.exe (PID: 2948)
- chrome.exe (PID: 188)
- chrome.exe (PID: 596)
- chrome.exe (PID: 2220)
- chrome.exe (PID: 1332)
- chrome.exe (PID: 1272)
- chrome.exe (PID: 2492)
- chrome.exe (PID: 1248)
- chrome.exe (PID: 2628)
- chrome.exe (PID: 1568)
- chrome.exe (PID: 1612)
- chrome.exe (PID: 2224)
- chrome.exe (PID: 2688)
- chrome.exe (PID: 2744)
- chrome.exe (PID: 2352)
- chrome.exe (PID: 2736)
- chrome.exe (PID: 3264)
- chrome.exe (PID: 876)
- chrome.exe (PID: 1004)
- chrome.exe (PID: 3624)
- chrome.exe (PID: 3848)
- chrome.exe (PID: 2192)
- chrome.exe (PID: 3980)
- chrome.exe (PID: 2784)
- chrome.exe (PID: 2860)
- chrome.exe (PID: 1612)
- chrome.exe (PID: 3968)
- chrome.exe (PID: 2672)
- chrome.exe (PID: 456)
- chrome.exe (PID: 3284)
Application launched itself
- iexplore.exe (PID: 2604)
- chrome.exe (PID: 2948)
Changes internet zones settings
- iexplore.exe (PID: 2604)
Reads the date of Windows installation
- iexplore.exe (PID: 2604)
- chrome.exe (PID: 456)
Modifies the phishing filter of IE
- iexplore.exe (PID: 2604)
Checks Windows Trust Settings
- iexplore.exe (PID: 2604)
Reads settings of System Certificates
- iexplore.exe (PID: 2604)
- chrome.exe (PID: 188)
Manual execution by user
- explorer.exe (PID: 128)
- chrome.exe (PID: 2948)
- csrss.exe (PID: 1988)
Changes settings of System certificates
- iexplore.exe (PID: 2604)
Adds / modifies Windows certificates
- iexplore.exe (PID: 2604)
Reads the hosts file
- chrome.exe (PID: 2948)
- chrome.exe (PID: 188)
Dropped object may contain Bitcoin addresses
- chrome.exe (PID: 2948)
Creates files in the user directory
- iexplore.exe (PID: 2604)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
Total processes
76
Monitored processes
35
Malicious processes
0
Suspicious processes
3
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2604 | "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) Modules
| |||||||||||||||
| 2880 | "C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:2604 CREDAT:267521 /prefetch:2 | C:\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
| |||||||||||||||
| 128 | "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) Modules
| |||||||||||||||
| 2948 | "C:\Program Files\Google\Chrome\Application\chrome.exe" | C:\Program Files\Google\Chrome\Application\chrome.exe | Explorer.EXE | ||||||||||||
User: admin Company: Google LLC Integrity Level: MEDIUM Description: Google Chrome Exit code: 3221225547 Version: 86.0.4240.198 Modules
| |||||||||||||||
| 1176 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win32 --annotation=prod=Chrome --annotation=ver=86.0.4240.198 --initial-client-data=0xc8,0xcc,0xd0,0x9c,0xd4,0x6e57d988,0x6e57d998,0x6e57d9a4 | C:\Program Files\Google\Chrome\Application\chrome.exe | — | chrome.exe | |||||||||||
User: admin Company: Google LLC Integrity Level: MEDIUM Description: Google Chrome Exit code: 0 Version: 86.0.4240.198 Modules
| |||||||||||||||
| 596 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1032,9457582678827060487,2389961149554065277,131072 --enable-features=PasswordImport --gpu-preferences=MAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAQAAAAAAAAAAAAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAA= --mojo-platform-channel-handle=1076 /prefetch:2 | C:\Program Files\Google\Chrome\Application\chrome.exe | — | chrome.exe | |||||||||||
User: admin Company: Google LLC Integrity Level: LOW Description: Google Chrome Exit code: 0 Version: 86.0.4240.198 Modules
| |||||||||||||||
| 188 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1032,9457582678827060487,2389961149554065277,131072 --enable-features=PasswordImport --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=1316 /prefetch:8 | C:\Program Files\Google\Chrome\Application\chrome.exe | chrome.exe | ||||||||||||
User: admin Company: Google LLC Integrity Level: MEDIUM Description: Google Chrome Exit code: 0 Version: 86.0.4240.198 Modules
| |||||||||||||||
| 2220 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1032,9457582678827060487,2389961149554065277,131072 --enable-features=PasswordImport --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1780 /prefetch:1 | C:\Program Files\Google\Chrome\Application\chrome.exe | — | chrome.exe | |||||||||||
User: admin Company: Google LLC Integrity Level: LOW Description: Google Chrome Exit code: 0 Version: 86.0.4240.198 Modules
| |||||||||||||||
| 1272 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1032,9457582678827060487,2389961149554065277,131072 --enable-features=PasswordImport --lang=en-US --instant-process --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1920 /prefetch:1 | C:\Program Files\Google\Chrome\Application\chrome.exe | — | chrome.exe | |||||||||||
User: admin Company: Google LLC Integrity Level: LOW Description: Google Chrome Exit code: 0 Version: 86.0.4240.198 Modules
| |||||||||||||||
| 1248 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1032,9457582678827060487,2389961149554065277,131072 --enable-features=PasswordImport --lang=en-US --extension-process --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=4 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2092 /prefetch:1 | C:\Program Files\Google\Chrome\Application\chrome.exe | — | chrome.exe | |||||||||||
User: admin Company: Google LLC Integrity Level: LOW Description: Google Chrome Exit code: 0 Version: 86.0.4240.198 Modules
| |||||||||||||||
Total events
24 280
Read events
23 942
Write events
0
Delete events
0
Modification events
Executable files
2
Suspicious files
216
Text files
141
Unknown types
23
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2948 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\BrowserMetrics\BrowserMetrics-62B950B4-B84.pma | — | |
MD5:— | SHA256:— | |||
| 2604 | iexplore.exe | C:\Users\admin\AppData\Local\Microsoft\Internet Explorer\Recovery\Active\{E85C494D-F5E3-11EC-AE3F-12A9866C77DE}.dat | binary | |
MD5:68E18C400C213687C3CFF32ACB475735 | SHA256:42A6ABB484B827FC65A2CE7A93BA22C1603E2200E4A5E03820188549843113C5 | |||
| 2880 | iexplore.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\DY534W2X\csrss[1].exe | executable | |
MD5:FB864AD8113FDD5C227BC880F9258C6F | SHA256:F8146D977ABD58E3CCE4916C992727A259D3DCA9FF2EB0248881023735F1277E | |||
| 2604 | iexplore.exe | C:\Users\admin\AppData\Local\Temp\~DF0994F4AB71BC8B60.TMP | gmc | |
MD5:8999F43A13FF836B88292C3B57F9E43B | SHA256:D37F1EF9627BA659A129FEB1BCC016B13DC990B16C8306AA62671A8A54CCADA1 | |||
| 2948 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\45f254d4-10f5-4390-8dc0-43bdbde9dd9e.tmp | text | |
MD5:CCBDB7B3FC58135C63F5E6FB7FD565EC | SHA256:3166BBF4FEDE224F5E8EA8E57D877A8AE2706D1828EB78997D9A2BCD64436929 | |||
| 2604 | iexplore.exe | C:\Users\admin\Downloads\csrss.exe.om6w477.partial:Zone.Identifier | text | |
MD5:FBCCF14D504B7B2DBCB5A5BDA75BD93B | SHA256:EACD09517CE90D34BA562171D15AC40D302F0E691B439F91BE1B6406E25F5913 | |||
| 2948 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\LOG.old~RFf9021.TMP | text | |
MD5:936EB7280DA791E6DD28EF3A9B46D39C | SHA256:CBAF2AFD831B32F6D1C12337EE5D2F090D6AE1F4DCB40B08BEF49BF52AD9721F | |||
| 2948 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\LOG.old~RFf9031.TMP | text | |
MD5:64AD8ED3E666540337BA541C549F72F7 | SHA256:BECBDB08B5B37D203A85F2E974407334053BB1D2270F0B3C9A4DB963896F2206 | |||
| 2948 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Platform Notifications\LOG.old | text | |
MD5:EF1D5606A483BB6C72C81A3F649BEB18 | SHA256:BA083E7585ADA9936944FE56BC0141A544F18A01C3424E5C9F02375B34FE3D45 | |||
| 2948 | chrome.exe | C:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Session Storage\LOG.old | text | |
MD5:995C92837E4775CAFFE387D51ADBA520 | SHA256:51247C3464FD988B72670002D01A57FBFF1348704D325DC8FF8817ED2459D0D9 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
6
TCP/UDP connections
49
DNS requests
29
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2604 | iexplore.exe | GET | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEA8Ull8gIGmZT9XHrHiJQeI%3D | US | der | 1.47 Kb | whitelisted |
2604 | 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 |
2604 | iexplore.exe | GET | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | US | der | 471 b | whitelisted |
2880 | iexplore.exe | GET | 200 | 23.95.122.79:80 | http://23.95.122.79/_msoffice10/csrss.exe | US | executable | 1.05 Mb | suspicious |
188 | chrome.exe | GET | 200 | 34.104.35.123:80 | http://edgedl.me.gvt1.com/edgedl/chromewebstore/L2Nocm9tZV9leHRlbnNpb24vYmxvYnMvNzI0QUFXNV9zT2RvdUwyMERESEZGVmJnQQ/1.0.0.6_nmmhkkegccagdldgiimedpiccmgmieda.crx | US | crx | 242 Kb | whitelisted |
2604 | iexplore.exe | GET | 200 | 209.197.3.8:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?e0cb0f2d44175612 | US | compressed | 4.70 Kb | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
188 | chrome.exe | 142.250.186.164:443 | www.google.com | Google Inc. | US | whitelisted |
188 | chrome.exe | 216.58.212.163:443 | fonts.gstatic.com | Google Inc. | US | whitelisted |
2880 | iexplore.exe | 23.95.122.79:80 | — | ColoCrossing | US | suspicious |
188 | chrome.exe | 142.250.184.205:443 | accounts.google.com | Google Inc. | US | whitelisted |
188 | chrome.exe | 142.250.184.206:443 | apis.google.com | Google Inc. | US | whitelisted |
188 | chrome.exe | 142.250.185.170:443 | fonts.googleapis.com | Google Inc. | US | whitelisted |
188 | chrome.exe | 142.250.185.131:443 | www.gstatic.com | Google Inc. | US | whitelisted |
188 | chrome.exe | 142.250.185.193:443 | clients2.googleusercontent.com | Google Inc. | US | whitelisted |
188 | chrome.exe | 142.250.185.110:443 | clients2.google.com | Google Inc. | US | whitelisted |
188 | chrome.exe | 142.250.181.238:443 | encrypted-tbn0.gstatic.com | Google Inc. | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
clientservices.googleapis.com |
| whitelisted |
clients2.google.com |
| whitelisted |
accounts.google.com |
| shared |
www.google.com |
| whitelisted |
clients2.googleusercontent.com |
| whitelisted |
fonts.googleapis.com |
| whitelisted |
www.gstatic.com |
| whitelisted |
fonts.gstatic.com |
| whitelisted |
apis.google.com |
| whitelisted |
encrypted-tbn0.gstatic.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2880 | iexplore.exe | A Network Trojan was detected | ET INFO Executable Download from dotted-quad Host |
2880 | iexplore.exe | Potentially Bad Traffic | ET INFO Suspicious csrss.exe in URI |
2880 | iexplore.exe | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
2880 | iexplore.exe | Potentially Bad Traffic | ET INFO SUSPICIOUS Dotted Quad Host MZ Response |