Analysis Overview
Threat Level: Known bad
The file https://pub-c8681bd78a264f138f4dc6b2c9560d8a.r2.dev/letencypurpose.html was found to be: Known bad.
Malicious Activity Summary
Browser Information Discovery
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-13 21:33
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-13 21:33
Reported
2024-08-13 21:33
Platform
win10v2004-20240802-en
Max time kernel
10s
Max time network
10s
Command Line
Signatures
Browser Information Discovery
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe | N/A |
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Processes
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://pub-c8681bd78a264f138f4dc6b2c9560d8a.r2.dev/letencypurpose.html
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xb4,0x108,0x7ffa198346f8,0x7ffa19834708,0x7ffa19834718
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2144,17249779226904878368,2193726538215747120,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2100 /prefetch:2
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2144,17249779226904878368,2193726538215747120,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2236 /prefetch:3
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2144,17249779226904878368,2193726538215747120,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2936 /prefetch:8
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,17249779226904878368,2193726538215747120,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3312 /prefetch:1
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,17249779226904878368,2193726538215747120,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3328 /prefetch:1
C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2144,17249779226904878368,2193726538215747120,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5208 /prefetch:8
C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2144,17249779226904878368,2193726538215747120,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5208 /prefetch:8
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,17249779226904878368,2193726538215747120,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5176 /prefetch:1
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,17249779226904878368,2193726538215747120,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5292 /prefetch:1
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,17249779226904878368,2193726538215747120,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5720 /prefetch:1
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,17249779226904878368,2193726538215747120,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5712 /prefetch:1
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | pub-c8681bd78a264f138f4dc6b2c9560d8a.r2.dev | udp |
| US | 104.18.3.35:443 | pub-c8681bd78a264f138f4dc6b2c9560d8a.r2.dev | tcp |
| US | 8.8.8.8:53 | apps.identrust.com | udp |
| GB | 92.123.143.201:80 | apps.identrust.com | tcp |
| US | 8.8.8.8:53 | 35.3.18.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 201.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | challenges.cloudflare.com | udp |
| US | 8.8.8.8:53 | kleinestheater-badgodesberg.org | udp |
| US | 104.21.65.187:443 | kleinestheater-badgodesberg.org | tcp |
| US | 104.18.95.41:443 | challenges.cloudflare.com | tcp |
| US | 8.8.8.8:53 | code.jquery.com | udp |
| US | 8.8.8.8:53 | cdnjs.cloudflare.com | udp |
| US | 151.101.130.137:443 | code.jquery.com | tcp |
| US | 104.17.24.14:443 | cdnjs.cloudflare.com | tcp |
| US | 104.21.65.187:443 | kleinestheater-badgodesberg.org | tcp |
| US | 8.8.8.8:53 | 41.95.18.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 187.65.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 137.130.101.151.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.24.17.104.in-addr.arpa | udp |
| N/A | 224.0.0.251:5353 | udp |
Files
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
| MD5 | 27304926d60324abe74d7a4b571c35ea |
| SHA1 | 78b8f92fcaf4a09eaa786bbe33fd1b0222ef29c1 |
| SHA256 | 7039ad5c2b40f4d97c8c2269f4942be13436d739b2e1f8feb7a0c9f9fdb931de |
| SHA512 | f5b6181d3f432238c7365f64fc8a373299e23ba8178bcc419471916ef8b23e909787c7c0617ab22e4eb90909c02bd7b84f1386fbc61e2bdb5a0eb474175da4bd |
\??\pipe\LOCAL\crashpad_4236_CZBHHAQEKIKPKHHC
| MD5 | d41d8cd98f00b204e9800998ecf8427e |
| SHA1 | da39a3ee5e6b4b0d3255bfef95601890afd80709 |
| SHA256 | e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 |
| SHA512 | cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e |
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
| MD5 | 9e3fc58a8fb86c93d19e1500b873ef6f |
| SHA1 | c6aae5f4e26f5570db5e14bba8d5061867a33b56 |
| SHA256 | 828f4eacac1c40b790fd70dbb6fa6ba03dcc681171d9b2a6579626d27837b1c4 |
| SHA512 | e5e245b56fa82075e060f468a3224cf2ef43f1b6d87f0351a2102d85c7c897e559be4caeaecfdc4059af29fdc674681b61229319dda95cb2ee649b2eb98d313e |
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
| MD5 | 979686b55dfe5fc23dde5d425793bebb |
| SHA1 | 5b4f1cca2a836aece1f64b4336c582bcf2087707 |
| SHA256 | 7b8c9870dda1a08f560c40f5f905d6b366d0965ca322827b3585db3e173d2fbf |
| SHA512 | e7d9ca746185bdd5bbba79ab517874610d5f89f8e0663e529ae99ddc41903794d32bd8183bb292ca7c92b02c1ab8319acc1a747c02ce8c4462f418737a2ab7de |
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
| MD5 | 6752a1d65b201c13b62ea44016eb221f |
| SHA1 | 58ecf154d01a62233ed7fb494ace3c3d4ffce08b |
| SHA256 | 0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd |
| SHA512 | 9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389 |