Analysis Overview
Threat Level: Likely benign
The file https://aka.ms/krs?id=-crYd9Lj was found to be: Likely benign.
Malicious Activity Summary
Detected potential entity reuse from brand microsoft.
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-06 15:46
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-06 15:46
Reported
2024-06-06 15:49
Platform
win10v2004-20240426-en
Max time kernel
145s
Max time network
141s
Command Line
Signatures
Detected potential entity reuse from brand microsoft.
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 |
| 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 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 |
| 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://aka.ms/krs?id=-crYd9Lj
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,0x100,0x104,0xd8,0x108,0x7ff85efe46f8,0x7ff85efe4708,0x7ff85efe4718
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2080,6396433275270464864,13983995332131302452,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2096 /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=2080,6396433275270464864,13983995332131302452,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2148 /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=2080,6396433275270464864,13983995332131302452,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2780 /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=2080,6396433275270464864,13983995332131302452,131072 --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=3288 /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=2080,6396433275270464864,13983995332131302452,131072 --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=3336 /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\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,6396433275270464864,13983995332131302452,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5004 /prefetch:1
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=2080,6396433275270464864,13983995332131302452,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3928 /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=2080,6396433275270464864,13983995332131302452,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3928 /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=2080,6396433275270464864,13983995332131302452,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5244 /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=2080,6396433275270464864,13983995332131302452,131072 --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=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4124 /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=2080,6396433275270464864,13983995332131302452,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5108 /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=2080,6396433275270464864,13983995332131302452,131072 --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=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5480 /prefetch:1
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2080,6396433275270464864,13983995332131302452,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1708 /prefetch:2
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | aka.ms | udp |
| GB | 2.17.6.114:443 | aka.ms | tcp |
| US | 8.8.8.8:53 | krs.microsoft.com | udp |
| US | 13.107.246.64:443 | krs.microsoft.com | tcp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 114.6.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 145.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 64.246.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.microsoft.com | udp |
| US | 8.8.8.8:53 | play-lh.googleusercontent.com | udp |
| GB | 142.250.178.22:443 | play-lh.googleusercontent.com | tcp |
| BE | 104.90.25.175:443 | www.microsoft.com | tcp |
| US | 8.8.8.8:53 | c.s-microsoft.com | udp |
| GB | 2.21.189.233:443 | c.s-microsoft.com | tcp |
| US | 8.8.8.8:53 | 22.178.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 175.25.90.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 233.189.21.2.in-addr.arpa | udp |
| N/A | 224.0.0.251:5353 | udp | |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
| MD5 | f53207a5ca2ef5c7e976cbb3cb26d870 |
| SHA1 | 49a8cc44f53da77bb3dfb36fc7676ed54675db43 |
| SHA256 | 19ab4e3c9da6d9cedda7461efdba9a2085e743513ab89f1dd0fd5a8f9486ad23 |
| SHA512 | be734c7e8afda19f445912aef0d78f9941add29baebd4a812bff27f10a1d78b52aeb11c551468c8644443c86e1a2a6b2e4aead3d7f81d39925e3c20406ac1499 |
\??\pipe\LOCAL\crashpad_2728_TOQBCPNDKDJCWNXC
| MD5 | d41d8cd98f00b204e9800998ecf8427e |
| SHA1 | da39a3ee5e6b4b0d3255bfef95601890afd80709 |
| SHA256 | e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 |
| SHA512 | cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e |
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
| MD5 | ae54e9db2e89f2c54da8cc0bfcbd26bd |
| SHA1 | a88af6c673609ecbc51a1a60dfbc8577830d2b5d |
| SHA256 | 5009d3c953de63cfd14a7d911156c514e179ff07d2b94382d9caac6040cb72af |
| SHA512 | e3b70e5eb7321b9deca6f6a17424a15b9fd5c4008bd3789bd01099fd13cb2f4a2f37fe4b920fb51c50517745b576c1f94df83efd1a7e75949551163985599998 |
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
| MD5 | 5df86617337ebe00bbcd177cc1e406e6 |
| SHA1 | 77e3c9486d631ad50c846abd56da2d507e686a87 |
| SHA256 | c4a397cffac07ef4d1e56c7a67d332fa03649d450de032f6a160f733859fb2f1 |
| SHA512 | 96f7feff19cae306546b75aa1859da9f179820f0694eee7f1647b4bff32d1fb4ab521a34a17f17580110e19d2d3072e435dc3a9738f0319a18bd37f81e84a40b |
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
| MD5 | 6752a1d65b201c13b62ea44016eb221f |
| SHA1 | 58ecf154d01a62233ed7fb494ace3c3d4ffce08b |
| SHA256 | 0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd |
| SHA512 | 9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389 |
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
| MD5 | 32e49743f0ef2e12fd4137a6a530704d |
| SHA1 | 757e932dc8f0c8c36d786ae95720c97004eae22e |
| SHA256 | 371a654cb792de0452954695c95176fa1cb86300864b3e1d51539942e8954826 |
| SHA512 | b3ec8cf393c28d7e723ef0e8ec6033be8043615698a17aa490a118effca035089d5533e27afff9801c15787d5304f1c0c9240e646e832cdfd0c4f3ee642e9131 |
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
| MD5 | 59e2eee0427a8aa3311bda08db91f120 |
| SHA1 | f62be836728c69866c6b775f008ed76f0b272f27 |
| SHA256 | b51363d6ae88d255edc8c865690933830cb6bede42f49f56889d896ce32c25ca |
| SHA512 | 6e0836dc6137d8e0e4bcea9208cbabb220610c0944f1092d9bb0b4612987919fb9c951130e40bedc4752ba98105a5a2e0b9d0716de1bdcf160f537eadf00b6f6 |
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State
| MD5 | da7581890981989842f9569ceb10d14e |
| SHA1 | 25b2a4e72e04ff5c07e14d7bb1218e13bded8db5 |
| SHA256 | 7b0826fb1654c2cc9911bfc8110d32b88b26b4117747432487113a262f0a311e |
| SHA512 | 00692345f22c2cb04d05a8e8a3238c79bb023058e143b26c01db4b946b0f82243df97865daa4c9fba434956c8852e1b7a471919a94c6d1b58577c11c6fa95910 |