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Analysis
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max time kernel
147s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
04/01/2024, 05:42 UTC
Behavioral task
behavioral1
Sample
400acaacfe51458118a9e147189d3078.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
400acaacfe51458118a9e147189d3078.exe
Resource
win10v2004-20231215-en
General
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Target
400acaacfe51458118a9e147189d3078.exe
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Size
123KB
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MD5
400acaacfe51458118a9e147189d3078
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SHA1
e821c0659887ee001130e37b1fb8c1a1b3c3bf70
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SHA256
6f8414d94f2da17d4ca602f2af65b8634169e2edc3afbb5849bf395f715af00f
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SHA512
3fba10a82b95c95b81e2e5cae57677a31a238b228bdb0cbb7e0c2b3dcdbac430671b3797e079d52d5ea0beef7bde702fc93240569a1340417f3ef97920fe996c
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SSDEEP
3072:SKcWmjRrz3ZKcWmjRrz3PNAKIOXtGQqiIzWNsHkAyxY9u:hGyGlAKR9GhimByN
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 2096 etjT4cXSzWYJvFz.exe 4068 CTS.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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resource yara_rule behavioral2/memory/3460-0-0x0000000000C30000-0x0000000000C47000-memory.dmp upx behavioral2/files/0x000d00000002315f-8.dat upx behavioral2/memory/3460-9-0x0000000000C30000-0x0000000000C47000-memory.dmp upx behavioral2/files/0x000300000002276d-13.dat upx behavioral2/memory/4068-7-0x0000000000940000-0x0000000000957000-memory.dmp upx behavioral2/memory/4068-32-0x0000000000940000-0x0000000000957000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" 400acaacfe51458118a9e147189d3078.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" CTS.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\CTS.exe 400acaacfe51458118a9e147189d3078.exe File created C:\Windows\CTS.exe CTS.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3460 400acaacfe51458118a9e147189d3078.exe Token: SeDebugPrivilege 4068 CTS.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3460 wrote to memory of 2096 3460 400acaacfe51458118a9e147189d3078.exe 93 PID 3460 wrote to memory of 2096 3460 400acaacfe51458118a9e147189d3078.exe 93 PID 3460 wrote to memory of 2096 3460 400acaacfe51458118a9e147189d3078.exe 93 PID 3460 wrote to memory of 4068 3460 400acaacfe51458118a9e147189d3078.exe 90 PID 3460 wrote to memory of 4068 3460 400acaacfe51458118a9e147189d3078.exe 90 PID 3460 wrote to memory of 4068 3460 400acaacfe51458118a9e147189d3078.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\400acaacfe51458118a9e147189d3078.exe"C:\Users\Admin\AppData\Local\Temp\400acaacfe51458118a9e147189d3078.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3460 -
C:\Windows\CTS.exe"C:\Windows\CTS.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4068
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C:\Users\Admin\AppData\Local\Temp\etjT4cXSzWYJvFz.exeC:\Users\Admin\AppData\Local\Temp\etjT4cXSzWYJvFz.exe2⤵
- Executes dropped EXE
PID:2096
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Network
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Remote address:8.8.8.8:53Request21.177.190.20.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request146.78.124.51.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request194.178.17.96.in-addr.arpaIN PTRResponse194.178.17.96.in-addr.arpaIN PTRa96-17-178-194deploystaticakamaitechnologiescom
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Remote address:8.8.8.8:53Requestg.bing.comIN AResponseg.bing.comIN CNAMEg-bing-com.a-0001.a-msedge.netg-bing-com.a-0001.a-msedge.netIN CNAMEdual-a-0001.a-msedge.netdual-a-0001.a-msedge.netIN A204.79.197.200dual-a-0001.a-msedge.netIN A13.107.21.200
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Remote address:8.8.8.8:53Requestg.bing.comIN A
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Remote address:8.8.8.8:53Requestg.bing.comIN A
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Remote address:8.8.8.8:53Request95.221.229.192.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request95.221.229.192.in-addr.arpaIN PTR
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Remote address:8.8.8.8:53Request95.221.229.192.in-addr.arpaIN PTR
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Remote address:8.8.8.8:53Request43.58.199.20.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request43.58.199.20.in-addr.arpaIN PTR
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GEThttps://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=46ba1328e6dc409bb879e92fbfe17ab9&localId=w:CB46C7AD-3FBE-4EAF-8E4F-46C212B95A7B&deviceId=6896190258833704&anid=Remote address:204.79.197.200:443RequestGET /neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=46ba1328e6dc409bb879e92fbfe17ab9&localId=w:CB46C7AD-3FBE-4EAF-8E4F-46C212B95A7B&deviceId=6896190258833704&anid= HTTP/2.0
host: g.bing.com
accept-encoding: gzip, deflate
user-agent: WindowsShellClient/9.0.40929.0 (Windows)
ResponseHTTP/2.0 204
pragma: no-cache
expires: Fri, 01 Jan 1990 00:00:00 GMT
set-cookie: MUID=13362097EE796EC71FA9336BEF996FFF; domain=.bing.com; expires=Tue, 28-Jan-2025 05:43:21 GMT; path=/; SameSite=None; Secure; Priority=High;
strict-transport-security: max-age=31536000; includeSubDomains; preload
access-control-allow-origin: *
x-cache: CONFIG_NOCACHE
accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
x-msedge-ref: Ref A: FE4F28AADE1C4D459AE618B72B967D98 Ref B: LON04EDGE1216 Ref C: 2024-01-04T05:43:21Z
date: Thu, 04 Jan 2024 05:43:21 GMT
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GEThttps://g.bing.com/neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=46ba1328e6dc409bb879e92fbfe17ab9&localId=w:CB46C7AD-3FBE-4EAF-8E4F-46C212B95A7B&deviceId=6896190258833704&anid=Remote address:204.79.197.200:443RequestGET /neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=46ba1328e6dc409bb879e92fbfe17ab9&localId=w:CB46C7AD-3FBE-4EAF-8E4F-46C212B95A7B&deviceId=6896190258833704&anid= HTTP/2.0
host: g.bing.com
accept-encoding: gzip, deflate
user-agent: WindowsShellClient/9.0.40929.0 (Windows)
cookie: MUID=13362097EE796EC71FA9336BEF996FFF
ResponseHTTP/2.0 204
pragma: no-cache
expires: Fri, 01 Jan 1990 00:00:00 GMT
set-cookie: MSPTC=RZuCZMAKkpbguq4sm9WLPOeoAEDeoasExxwJ-QZJ8uo; domain=.bing.com; expires=Tue, 28-Jan-2025 05:43:23 GMT; path=/; Partitioned; secure; SameSite=None
strict-transport-security: max-age=31536000; includeSubDomains; preload
access-control-allow-origin: *
x-cache: CONFIG_NOCACHE
accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
x-msedge-ref: Ref A: CA88013BC378421AB96CDAEC8266E962 Ref B: LON04EDGE1216 Ref C: 2024-01-04T05:43:23Z
date: Thu, 04 Jan 2024 05:43:23 GMT
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GEThttps://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=46ba1328e6dc409bb879e92fbfe17ab9&localId=w:CB46C7AD-3FBE-4EAF-8E4F-46C212B95A7B&deviceId=6896190258833704&anid=Remote address:204.79.197.200:443RequestGET /neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=46ba1328e6dc409bb879e92fbfe17ab9&localId=w:CB46C7AD-3FBE-4EAF-8E4F-46C212B95A7B&deviceId=6896190258833704&anid= HTTP/2.0
host: g.bing.com
accept-encoding: gzip, deflate
user-agent: WindowsShellClient/9.0.40929.0 (Windows)
cookie: MUID=13362097EE796EC71FA9336BEF996FFF; MSPTC=RZuCZMAKkpbguq4sm9WLPOeoAEDeoasExxwJ-QZJ8uo
ResponseHTTP/2.0 204
pragma: no-cache
expires: Fri, 01 Jan 1990 00:00:00 GMT
strict-transport-security: max-age=31536000; includeSubDomains; preload
access-control-allow-origin: *
x-cache: CONFIG_NOCACHE
accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
x-msedge-ref: Ref A: 4D721558682540CF8A27D7B146415B73 Ref B: LON04EDGE1216 Ref C: 2024-01-04T05:43:23Z
date: Thu, 04 Jan 2024 05:43:23 GMT
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Remote address:8.8.8.8:53Request59.128.231.4.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request9.228.82.20.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request183.59.114.20.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request158.240.127.40.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request41.110.16.96.in-addr.arpaIN PTRResponse41.110.16.96.in-addr.arpaIN PTRa96-16-110-41deploystaticakamaitechnologiescom
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Remote address:8.8.8.8:53Request15.164.165.52.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Requestwww.microsoft.comIN AResponsewww.microsoft.comIN CNAMEwww.microsoft.com-c-3.edgekey.netwww.microsoft.com-c-3.edgekey.netIN CNAMEwww.microsoft.com-c-3.edgekey.net.globalredir.akadns.netwww.microsoft.com-c-3.edgekey.net.globalredir.akadns.netIN CNAMEe13678.dscb.akamaiedge.nete13678.dscb.akamaiedge.netIN A92.123.241.137
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Remote address:8.8.8.8:53Requestwww.microsoft.comIN A
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Remote address:92.123.241.137:80RequestGET /pkiops/certs/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crt HTTP/1.1
Connection: Keep-Alive
Accept: */*
User-Agent: Microsoft-CryptoAPI/10.0
Host: www.microsoft.com
ResponseHTTP/1.1 200 OK
Content-Type: application/octet-stream
Content-MD5: YAUaFgF7vUODUG8XQQW6BQ==
Last-Modified: Fri, 28 Sep 2018 22:50:05 GMT
ETag: 0x8D62594BC0C84D8
x-ms-request-id: 9327f1ba-601e-004f-4648-1536e4000000
x-ms-version: 2009-09-19
x-ms-lease-status: unlocked
x-ms-blob-type: BlockBlob
X-EdgeConnect-Origin-MEX-Latency: 108
X-EdgeConnect-Origin-MEX-Latency: 111
Date: Thu, 04 Jan 2024 05:43:52 GMT
Connection: keep-alive
TLS_version: UNKNOWN
ms-cv: CASMicrosoftCV2a038e9b.0
ms-cv-esi: CASMicrosoftCV2a038e9b.0
X-RTag: RT
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Remote address:92.123.241.137:80RequestGET /pkiops/certs/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crt HTTP/1.1
Connection: Keep-Alive
Accept: */*
User-Agent: Microsoft-CryptoAPI/10.0
Host: www.microsoft.com
ResponseHTTP/1.1 200 OK
Content-Type: application/octet-stream
Content-MD5: YAUaFgF7vUODUG8XQQW6BQ==
Last-Modified: Fri, 28 Sep 2018 22:50:05 GMT
ETag: 0x8D62594BC0C84D8
x-ms-request-id: 9327f1ba-601e-004f-4648-1536e4000000
x-ms-version: 2009-09-19
x-ms-lease-status: unlocked
x-ms-blob-type: BlockBlob
Date: Thu, 04 Jan 2024 05:43:53 GMT
Connection: keep-alive
TLS_version: UNKNOWN
ms-cv: CASMicrosoftCVb5117fce.0
ms-cv-esi: CASMicrosoftCVb5117fce.0
X-RTag: RT
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Remote address:8.8.8.8:53Request137.241.123.92.in-addr.arpaIN PTRResponse137.241.123.92.in-addr.arpaIN PTRa92-123-241-137deploystaticakamaitechnologiescom
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Remote address:8.8.8.8:53Request240.221.184.93.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request104.241.123.92.in-addr.arpaIN PTRResponse104.241.123.92.in-addr.arpaIN PTRa92-123-241-104deploystaticakamaitechnologiescom
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Remote address:8.8.8.8:53Request119.110.54.20.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request174.178.17.96.in-addr.arpaIN PTRResponse174.178.17.96.in-addr.arpaIN PTRa96-17-178-174deploystaticakamaitechnologiescom
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Remote address:8.8.8.8:53Request217.135.221.88.in-addr.arpaIN PTRResponse217.135.221.88.in-addr.arpaIN PTRa88-221-135-217deploystaticakamaitechnologiescom
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Remote address:8.8.8.8:53Request211.135.221.88.in-addr.arpaIN PTRResponse211.135.221.88.in-addr.arpaIN PTRa88-221-135-211deploystaticakamaitechnologiescom
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Remote address:8.8.8.8:53Request180.178.17.96.in-addr.arpaIN PTRResponse180.178.17.96.in-addr.arpaIN PTRa96-17-178-180deploystaticakamaitechnologiescom
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Remote address:8.8.8.8:53Request45.19.74.20.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request45.19.74.20.in-addr.arpaIN PTR
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Remote address:8.8.8.8:53Request29.243.111.52.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request29.243.111.52.in-addr.arpaIN PTR
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GEThttps://tse1.mm.bing.net/th?id=OADD2.10239317301094_1ZX0523MAABCARXR5&pid=21.2&w=1920&h=1080&c=4Remote address:204.79.197.200:443RequestGET /th?id=OADD2.10239317301094_1ZX0523MAABCARXR5&pid=21.2&w=1920&h=1080&c=4 HTTP/2.0
host: tse1.mm.bing.net
accept: */*
accept-encoding: gzip, deflate, br
user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.19041
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Remote address:8.8.8.8:53Request198.187.3.20.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request198.187.3.20.in-addr.arpaIN PTRResponse
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204.79.197.200:443https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=46ba1328e6dc409bb879e92fbfe17ab9&localId=w:CB46C7AD-3FBE-4EAF-8E4F-46C212B95A7B&deviceId=6896190258833704&anid=tls, http22.6kB 9.8kB 23 19
HTTP Request
GET https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=46ba1328e6dc409bb879e92fbfe17ab9&localId=w:CB46C7AD-3FBE-4EAF-8E4F-46C212B95A7B&deviceId=6896190258833704&anid=HTTP Response
204HTTP Request
GET https://g.bing.com/neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=46ba1328e6dc409bb879e92fbfe17ab9&localId=w:CB46C7AD-3FBE-4EAF-8E4F-46C212B95A7B&deviceId=6896190258833704&anid=HTTP Response
204HTTP Request
GET https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=46ba1328e6dc409bb879e92fbfe17ab9&localId=w:CB46C7AD-3FBE-4EAF-8E4F-46C212B95A7B&deviceId=6896190258833704&anid=HTTP Response
204 -
92.123.241.137:80http://www.microsoft.com/pkiops/certs/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crthttp470 B 1.9kB 6 4
HTTP Request
GET http://www.microsoft.com/pkiops/certs/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crtHTTP Response
200 -
92.123.241.137:80http://www.microsoft.com/pkiops/certs/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crthttp418 B 1.8kB 5 4
HTTP Request
GET http://www.microsoft.com/pkiops/certs/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crtHTTP Response
200 -
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52 B 1
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52 B 1
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52 B 1
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287 B 2
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204.79.197.200:443https://tse1.mm.bing.net/th?id=OADD2.10239317301094_1ZX0523MAABCARXR5&pid=21.2&w=1920&h=1080&c=4tls, http211.5kB 307.7kB 231 230
HTTP Request
GET https://tse1.mm.bing.net/th?id=OADD2.10239317301094_1ZX0523MAABCARXR5&pid=21.2&w=1920&h=1080&c=4 -
970 B 8.5kB 11 7
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385 B 92 B 4 2
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339 B 52 B 3 1
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72 B 158 B 1 1
DNS Request
21.177.190.20.in-addr.arpa
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72 B 158 B 1 1
DNS Request
146.78.124.51.in-addr.arpa
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72 B 137 B 1 1
DNS Request
194.178.17.96.in-addr.arpa
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168 B 158 B 3 1
DNS Request
g.bing.com
DNS Request
g.bing.com
DNS Request
g.bing.com
DNS Response
204.79.197.20013.107.21.200
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219 B 144 B 3 1
DNS Request
95.221.229.192.in-addr.arpa
DNS Request
95.221.229.192.in-addr.arpa
DNS Request
95.221.229.192.in-addr.arpa
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142 B 157 B 2 1
DNS Request
43.58.199.20.in-addr.arpa
DNS Request
43.58.199.20.in-addr.arpa
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71 B 157 B 1 1
DNS Request
59.128.231.4.in-addr.arpa
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70 B 156 B 1 1
DNS Request
9.228.82.20.in-addr.arpa
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72 B 158 B 1 1
DNS Request
183.59.114.20.in-addr.arpa
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73 B 147 B 1 1
DNS Request
158.240.127.40.in-addr.arpa
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71 B 135 B 1 1
DNS Request
41.110.16.96.in-addr.arpa
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72 B 146 B 1 1
DNS Request
15.164.165.52.in-addr.arpa
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126 B 230 B 2 1
DNS Request
www.microsoft.com
DNS Request
www.microsoft.com
DNS Response
92.123.241.137
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73 B 139 B 1 1
DNS Request
137.241.123.92.in-addr.arpa
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73 B 144 B 1 1
DNS Request
240.221.184.93.in-addr.arpa
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73 B 139 B 1 1
DNS Request
104.241.123.92.in-addr.arpa
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72 B 158 B 1 1
DNS Request
119.110.54.20.in-addr.arpa
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72 B 137 B 1 1
DNS Request
174.178.17.96.in-addr.arpa
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73 B 139 B 1 1
DNS Request
217.135.221.88.in-addr.arpa
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73 B 139 B 1 1
DNS Request
211.135.221.88.in-addr.arpa
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72 B 137 B 1 1
DNS Request
180.178.17.96.in-addr.arpa
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140 B 156 B 2 1
DNS Request
45.19.74.20.in-addr.arpa
DNS Request
45.19.74.20.in-addr.arpa
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144 B 158 B 2 1
DNS Request
29.243.111.52.in-addr.arpa
DNS Request
29.243.111.52.in-addr.arpa
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142 B 314 B 2 2
DNS Request
198.187.3.20.in-addr.arpa
DNS Request
198.187.3.20.in-addr.arpa
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
382KB
MD55f9d40d0638f32d55149fd9ec587f202
SHA1ebeaeb102e768e1557d735d7077b8c9f8277775c
SHA256710897b7bf1ed25ed3217300901069524958daae5590273a1c0defc3917168f7
SHA512befe3bee5053582ae375bc323d7a6703e33e11d48c9c15ab6191563e6b18766bfad6b089b79a8b8dd11a2021ca9ee70e92a69da76957c364ea7d80e0b2d8f799
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Filesize
64KB
MD5a32a382b8a5a906e03a83b4f3e5b7a9b
SHA111e2bdd0798761f93cce363329996af6c17ed796
SHA25675f12ea2f30d9c0d872dade345f30f562e6d93847b6a509ba53beec6d0b2c346
SHA512ec87dd957be21b135212454646dcabdd7ef9442cf714e2c1f6b42b81f0c3fa3b1875bde9a8b538e8a0aa2190225649c29e9ed0f25176e7659e55e422dd4efe4c
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Filesize
59KB
MD55efd390d5f95c8191f5ac33c4db4b143
SHA142d81b118815361daa3007f1a40f1576e9a9e0bc
SHA2566028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74
SHA512720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d