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Analysis
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max time kernel
144s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
25/01/2025, 02:48 UTC
Static task
static1
Behavioral task
behavioral1
Sample
7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe
Resource
win10v2004-20241007-en
General
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Target
7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe
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Size
725KB
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MD5
e8bbb6d921b79101aea7d906a1798f3d
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SHA1
4fd59822cdedd1b194d27d2c01a9cde6222de1bb
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SHA256
7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd
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SHA512
c525e07c65c7be43aa90568f98253b397919cd0f597b1ba446fed51a578ca1aae4c93fa59e1345b20e3216a676ba35c89c67d6ced6bea68da44a53989fa4d656
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SSDEEP
12288:O7q+wuEST6sxwGCwuwn5vE2nyrJppqrNSP9kdrzA9PpXtuRt2BoivOnJztu3vdyB:CqrFvGjF5iZqrQag1t7+nJztuHi
Malware Config
Extracted
djvu
http://ring1.ug/As73yhsyU34578hxxx/SDf565g/get.php
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extension
.coot
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offline_id
MRQ5kb5Z12tWuP3e25YoRt4PRDrJd2yuI3coott1
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payload_url
http://ring1.ug/files/cost/updatewin1.exe
http://ring1.ug/files/cost/updatewin2.exe
http://ring1.ug/files/cost/updatewin.exe
http://ring1.ug/files/cost/3.exe
http://ring1.ug/files/cost/4.exe
http://ring1.ug/files/cost/5.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 8 IoCs
resource yara_rule behavioral2/memory/2604-2-0x0000000006DE0000-0x0000000006EFA000-memory.dmp family_djvu behavioral2/memory/2604-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2604-15-0x0000000006DE0000-0x0000000006EFA000-memory.dmp family_djvu behavioral2/memory/2604-16-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2604-14-0x0000000000400000-0x0000000004F0E000-memory.dmp family_djvu behavioral2/memory/2928-24-0x0000000000400000-0x0000000004F0E000-memory.dmp family_djvu behavioral2/memory/2928-27-0x0000000000400000-0x0000000004F0E000-memory.dmp family_djvu behavioral2/memory/2928-28-0x0000000000400000-0x0000000004F0E000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Djvu family
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 464 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7a95e866-3d3b-42d9-a24d-aa38a54cbe17\\7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe\" --AutoStart" 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 18 api.2ip.ua 19 api.2ip.ua 26 api.2ip.ua -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 2688 2604 WerFault.exe 81 -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2604 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe 2604 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe 2928 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe 2928 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2604 wrote to memory of 464 2604 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe 89 PID 2604 wrote to memory of 464 2604 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe 89 PID 2604 wrote to memory of 464 2604 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe 89 PID 2604 wrote to memory of 2928 2604 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe 90 PID 2604 wrote to memory of 2928 2604 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe 90 PID 2604 wrote to memory of 2928 2604 7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe"C:\Users\Admin\AppData\Local\Temp\7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2604 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\7a95e866-3d3b-42d9-a24d-aa38a54cbe17" /deny *S-1-1-0:(OI)(CI)(DE,DC)2⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:464
-
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C:\Users\Admin\AppData\Local\Temp\7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe"C:\Users\Admin\AppData\Local\Temp\7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe" --Admin IsNotAutoStart IsNotTask2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2928
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 18602⤵
- Program crash
PID:2688
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2604 -ip 26041⤵PID:4312
Network
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Remote address:8.8.8.8:53Request28.118.140.52.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request74.32.126.40.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request5.114.82.104.in-addr.arpaIN PTRResponse5.114.82.104.in-addr.arpaIN PTRa104-82-114-5deploystaticakamaitechnologiescom
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Remote address:8.8.8.8:53Request154.239.44.20.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request58.55.71.13.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Requestapi.2ip.uaIN AResponseapi.2ip.uaIN A104.21.112.1api.2ip.uaIN A104.21.80.1api.2ip.uaIN A104.21.48.1api.2ip.uaIN A104.21.32.1api.2ip.uaIN A104.21.16.1api.2ip.uaIN A104.21.96.1api.2ip.uaIN A104.21.64.1
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GEThttps://api.2ip.ua/geo.json7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exeRemote address:104.21.112.1:443RequestGET /geo.json HTTP/1.1
User-Agent: Microsoft Internet Explorer
Host: api.2ip.ua
ResponseHTTP/1.1 200 OK
Content-Type: application/json
Transfer-Encoding: chunked
Connection: keep-alive
strict-transport-security: max-age=63072000; preload
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
x-xss-protection: 1; mode=block; report=...
access-control-allow-origin: *
access-control-allow-methods: POST, GET, PUT, OPTIONS, PATCH, DELETE
access-control-allow-headers: X-Accept-Charset,X-Accept,Content-Type
cf-cache-status: DYNAMIC
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=OyrG4%2FmcOIPsKjnObIZjVnqqfmGO6rvdkhONe%2F8BkTrXyvKQvWXMDu%2B20xvJ%2B24yoeToI1D%2BdnYThZDSLO7qkyljvcA%2BEqOQK0xOlGb%2BSU2qugkoYcPj%2BfZlGFBE"}],"group":"cf-nel","max_age":604800}
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Server: cloudflare
CF-RAY: 9074f21cda328871-LHR
alt-svc: h3=":443"; ma=86400
server-timing: cfL4;desc="?proto=TCP&rtt=26116&min_rtt=26010&rtt_var=4224&sent=5&recv=9&lost=0&retrans=0&sent_bytes=3265&recv_bytes=384&delivery_rate=154767&cwnd=244&unsent_bytes=0&cid=80523a9dd708591f&ts=286&x=0"
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Remote address:8.8.8.8:53Requestc.pki.googIN AResponsec.pki.googIN CNAMEpki-goog.l.google.compki-goog.l.google.comIN A172.217.16.227
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GEThttp://c.pki.goog/r/gsr1.crl7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exeRemote address:172.217.16.227:80RequestGET /r/gsr1.crl HTTP/1.1
Connection: Keep-Alive
Accept: */*
User-Agent: Microsoft-CryptoAPI/10.0
Host: c.pki.goog
ResponseHTTP/1.1 200 OK
Content-Security-Policy-Report-Only: require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/cacerts
Cross-Origin-Resource-Policy: cross-origin
Cross-Origin-Opener-Policy: same-origin; report-to="cacerts"
Report-To: {"group":"cacerts","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/cacerts"}]}
Content-Length: 1739
X-Content-Type-Options: nosniff
Server: sffe
X-XSS-Protection: 0
Date: Sat, 25 Jan 2025 02:20:29 GMT
Expires: Sat, 25 Jan 2025 03:10:29 GMT
Cache-Control: public, max-age=3000
Age: 1692
Last-Modified: Tue, 07 Jan 2025 07:28:00 GMT
Content-Type: application/pkix-crl
Vary: Accept-Encoding
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Remote address:172.217.16.227:80RequestGET /r/r4.crl HTTP/1.1
Connection: Keep-Alive
Accept: */*
User-Agent: Microsoft-CryptoAPI/10.0
Host: c.pki.goog
ResponseHTTP/1.1 200 OK
Content-Security-Policy-Report-Only: require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/cacerts
Cross-Origin-Resource-Policy: cross-origin
Cross-Origin-Opener-Policy: same-origin; report-to="cacerts"
Report-To: {"group":"cacerts","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/cacerts"}]}
Content-Length: 436
X-Content-Type-Options: nosniff
Server: sffe
X-XSS-Protection: 0
Date: Sat, 25 Jan 2025 02:41:51 GMT
Expires: Sat, 25 Jan 2025 03:31:51 GMT
Cache-Control: public, max-age=3000
Age: 410
Last-Modified: Thu, 25 Jul 2024 14:48:00 GMT
Content-Type: application/pkix-crl
Vary: Accept-Encoding
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Remote address:8.8.8.8:53Request1.112.21.104.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request227.16.217.172.in-addr.arpaIN PTRResponse227.16.217.172.in-addr.arpaIN PTRlhr48s28-in-f31e100net227.16.217.172.in-addr.arpaIN PTRmad08s04-in-f3�H
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GEThttps://api.2ip.ua/geo.json7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exeRemote address:104.21.112.1:443RequestGET /geo.json HTTP/1.1
User-Agent: Microsoft Internet Explorer
Host: api.2ip.ua
ResponseHTTP/1.1 200 OK
Content-Type: application/json
Transfer-Encoding: chunked
Connection: keep-alive
strict-transport-security: max-age=63072000; preload
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
x-xss-protection: 1; mode=block; report=...
access-control-allow-origin: *
access-control-allow-methods: POST, GET, PUT, OPTIONS, PATCH, DELETE
access-control-allow-headers: X-Accept-Charset,X-Accept,Content-Type
cf-cache-status: DYNAMIC
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=ys2ShrZkRIv7c4BE6R9GGCqwIjlzmIQBFebZMh5%2Bc2vHNjNRvwg9BYbyrirDWDf8pWDyv%2ByG3Pw1bN8%2FvB1pIj6tXTVc2bSqg84uOEfkTycQ8KsuEa1hd3GZVpmk"}],"group":"cf-nel","max_age":604800}
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Server: cloudflare
CF-RAY: 9074f27d3986ee96-LHR
alt-svc: h3=":443"; ma=86400
server-timing: cfL4;desc="?proto=TCP&rtt=26357&min_rtt=26269&rtt_var=4215&sent=5&recv=9&lost=0&retrans=0&sent_bytes=3265&recv_bytes=384&delivery_rate=153587&cwnd=253&unsent_bytes=0&cid=f020351ba3881331&ts=121&x=0"
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Remote address:8.8.8.8:53Requestring1.ugIN AResponse
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Remote address:8.8.8.8:53Request197.87.175.4.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request241.42.69.40.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request92.12.20.2.in-addr.arpaIN PTRResponse92.12.20.2.in-addr.arpaIN PTRa2-20-12-92deploystaticakamaitechnologiescom
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Remote address:8.8.8.8:53Requestring1.ugIN AResponse
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Remote address:8.8.8.8:53Requestring1.ugIN AResponse
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Remote address:8.8.8.8:53Requestring1.ugIN AResponse
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Remote address:8.8.8.8:53Request30.243.111.52.in-addr.arpaIN PTRResponse
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104.21.112.1:443https://api.2ip.ua/geo.jsontls, http7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe1.0kB 5.4kB 14 10
HTTP Request
GET https://api.2ip.ua/geo.jsonHTTP Response
200 -
172.217.16.227:80http://c.pki.goog/r/r4.crlhttp7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe556 B 3.8kB 7 5
HTTP Request
GET http://c.pki.goog/r/gsr1.crlHTTP Response
200HTTP Request
GET http://c.pki.goog/r/r4.crlHTTP Response
200 -
104.21.112.1:443https://api.2ip.ua/geo.jsontls, http7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe1.1kB 5.5kB 15 11
HTTP Request
GET https://api.2ip.ua/geo.jsonHTTP Response
200
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72 B 158 B 1 1
DNS Request
28.118.140.52.in-addr.arpa
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71 B 157 B 1 1
DNS Request
74.32.126.40.in-addr.arpa
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71 B 135 B 1 1
DNS Request
5.114.82.104.in-addr.arpa
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72 B 158 B 1 1
DNS Request
154.239.44.20.in-addr.arpa
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70 B 144 B 1 1
DNS Request
58.55.71.13.in-addr.arpa
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56 B 168 B 1 1
DNS Request
api.2ip.ua
DNS Response
104.21.112.1104.21.80.1104.21.48.1104.21.32.1104.21.16.1104.21.96.1104.21.64.1
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56 B 107 B 1 1
DNS Request
c.pki.goog
DNS Response
172.217.16.227
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71 B 133 B 1 1
DNS Request
1.112.21.104.in-addr.arpa
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73 B 140 B 1 1
DNS Request
227.16.217.172.in-addr.arpa
-
54 B 118 B 1 1
DNS Request
ring1.ug
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71 B 157 B 1 1
DNS Request
197.87.175.4.in-addr.arpa
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71 B 145 B 1 1
DNS Request
241.42.69.40.in-addr.arpa
-
69 B 131 B 1 1
DNS Request
92.12.20.2.in-addr.arpa
-
54 B 118 B 1 1
DNS Request
ring1.ug
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54 B 118 B 1 1
DNS Request
ring1.ug
-
54 B 118 B 1 1
DNS Request
ring1.ug
-
72 B 158 B 1 1
DNS Request
30.243.111.52.in-addr.arpa
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5c9be626e9715952e9b70f92f912b9787
SHA1aa2e946d9ad9027172d0d321917942b7562d6abe
SHA256c13e8d22800c200915f87f71c31185053e4e60ca25de2e41e160e09cd2d815d4
SHA5127581b7c593785380e9db3ae760af85c1a889f607a3cd2aa5a2695a0e5a0fe8ee751578e88f7d8c997faeda804e2fc2655d859bee2832eace526ed4379edaa3f5
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Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD5f09c19e7169b089e342c019b2736b39b
SHA10598012e37e50deeebd04ae279c2daae7986009b
SHA256cffdf73da2af4adf569cea74fc198585618dde2ff997bb35c37853a50f6f05c6
SHA512a714a46199b00b0531327a2963020e81f2e83600734726f03867a4a8aef9d710e60ac21d66a30f78971254a73a73e0345b68c6cc61c7e77b85a38290bb172270
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5ea2fba5338881716f52f1a68623b57b1
SHA1b3bb438f9cc9997e5cea73eaca7505741417d079
SHA25611c9ec9a0e9a374741b7a657c080b9a3592d0786a274683ab64b905491476d12
SHA512e9a1166b18e007e9d24370d230b7c693d22030aa497fb8e2ea73c33ca6f6ec07d6c6608748238460a47095cab607133bb6d747d893d4004660cfa84a38e35f45
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C:\Users\Admin\AppData\Local\7a95e866-3d3b-42d9-a24d-aa38a54cbe17\7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe
Filesize725KB
MD5e8bbb6d921b79101aea7d906a1798f3d
SHA14fd59822cdedd1b194d27d2c01a9cde6222de1bb
SHA2567bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd
SHA512c525e07c65c7be43aa90568f98253b397919cd0f597b1ba446fed51a578ca1aae4c93fa59e1345b20e3216a676ba35c89c67d6ced6bea68da44a53989fa4d656