hxxp://ryokuyukai[.]jp/kamo/

General

Target

http://ryokuyukai.jp/kamo/

Score

1^/10

Malware Config

Signatures

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

msedge.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

msedge.exemsedge.exeidentity_helper.exe

pid process

4404 msedge.exe
4404 msedge.exe
3040 msedge.exe
3040 msedge.exe
4120 identity_helper.exe
4120 identity_helper.exe
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

Processes:

msedge.exe

pid process

3040 msedge.exe
3040 msedge.exe
3040 msedge.exe
3040 msedge.exe
3040 msedge.exe
3040 msedge.exe

pid	process
4404	msedge.exe
4404	msedge.exe
3040	msedge.exe
3040	msedge.exe
4120	identity_helper.exe
4120	identity_helper.exe

Suspicious use of FindShellTrayWindow 25 IoCs

Processes:

msedge.exe

pid	process
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

Processes:

msedge.exe

pid	process
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe
3040	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

msedge.exe

description	pid	process	target process
PID 3040 wrote to memory of 1480	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 1480	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 2440	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4404	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4404	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe
PID 3040 wrote to memory of 4224	3040	msedge.exe	msedge.exe

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://ryokuyukai.jp/kamo/
1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3040

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,0x100,0x104,0xd8,0x108,0x7ff9e5e046f8,0x7ff9e5e04708,0x7ff9e5e04718
2⤵
PID:1480

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2208,17373768606236227488,14162819229238017760,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2256 /prefetch:2
2⤵
PID:2440

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=2208,17373768606236227488,14162819229238017760,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2304 /prefetch:3
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:4404

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=2208,17373768606236227488,14162819229238017760,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2756 /prefetch:8
2⤵
PID:4224

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2208,17373768606236227488,14162819229238017760,131072 --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
2⤵
PID:1028

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2208,17373768606236227488,14162819229238017760,131072 --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=3296 /prefetch:1
2⤵
PID:1772

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=2208,17373768606236227488,14162819229238017760,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5524 /prefetch:8
2⤵
PID:1056

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=2208,17373768606236227488,14162819229238017760,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5524 /prefetch:8
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:4120

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2208,17373768606236227488,14162819229238017760,131072 --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=5160 /prefetch:1
2⤵
PID:4916

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2208,17373768606236227488,14162819229238017760,131072 --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=5216 /prefetch:1
2⤵
PID:528

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2208,17373768606236227488,14162819229238017760,131072 --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=4100 /prefetch:1
2⤵
PID:4912

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2208,17373768606236227488,14162819229238017760,131072 --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=5616 /prefetch:1
2⤵
PID:536

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3132

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
4b4f91fa1b362ba5341ecb2836438dea

SHA1
9561f5aabed742404d455da735259a2c6781fa07

SHA256
d824b742eace197ddc8b6ed5d918f390fde4b0fbf0e371b8e1f2ed40a3b6455c

SHA512
fef22217dcdd8000bc193e25129699d4b8f7a103ca4fe1613baf73ccf67090d9fbae27eb93e4bb8747455853a0a4326f2d0c38df41c8d42351cdcd4132418dac

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
eaa3db555ab5bc0cb364826204aad3f0

SHA1
a4cdfaac8de49e6e6e88b335cfeaa7c9e3c563ca

SHA256
ef7baeb1b2ab05ff3c5fbb76c2759db49294654548706c7c8e87f0cde855b86b

SHA512
e13981da51b52c15261ecabb98af32f9b920651b46b10ce0cc823c5878b22eb1420258c80deef204070d1e0bdd3a64d875ac2522e3713a3cf11657aa55aeccd4

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index

Filesize
384B

MD5
f7daf37f37ac74992c8812c26b5babc0

SHA1
53f689e018790041b63f80a56217675d9dd4b2f7

SHA256
c9970b5aa6980c16d56ffcf0c3c5fcc86a55a7d93eb5b068e175a3027bb95fd6

SHA512
b7751c23d8c3b2a4f42cc966ccc57e7b17c8a8859f25147a6095aba6956fdc1264211dce8a6a3c61e33545669cf455c02d7de145ee99a66f9e2a33b41ec61292

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
5KB

MD5
46737cf93886b6e313dccd9a048dd588

SHA1
2a38058eb486d437ac284ef9324023d9de0b9abb

SHA256
c04e5bd048dc9bd25be730c02c090ef63bfe13ca202919a3024bc3ea49bc329d

SHA512
3bca47b394aef866c783b4fa84a508d0f2029544ae726ff0d783a9727f1afb5c04a0aaf265a882a612c9f76256594ee7b371f0e3c0ccbe4de799eff5530779c5

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
6KB

MD5
a9d003f7fb655a9c1b8310120cf25c80

SHA1
4ccb57a44b07958ad75cb931aaca8e98fea14b4c

SHA256
c3be73b660464c98bcc1ab9b0c7e1230e21268ebd1c3307e4faaab09a477b691

SHA512
fb64d1379fbf3a05ea6ea8c75f6b64bf23eafb5b8133d11f414621dafc632f87ff0bf851c89f96fc165fb3ce19b3428fd11bb2bbd635a3a6653f6a6a39fb2ef9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

Filesize
16B

MD5
6752a1d65b201c13b62ea44016eb221f

SHA1
58ecf154d01a62233ed7fb494ace3c3d4ffce08b

SHA256
0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

SHA512
9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

Filesize
11KB

MD5
2d4c5cb0d674b700060e1e1d5660051d

SHA1
2b1cefd21bb4b6794cb73715ef9027fc7e9ec2cd

SHA256
7506c50b3c20be5b90760afca2d3d65cbb29670d2258bb3f43535f4fa7458b9e

SHA512
5f4993b24c190c56add22d560171059d4e0abb07ee7bc171f8246e8c368b8ad633250c8d70a9d9c74247851fa511299783f446db2c6ee5407e1814f454870520

Download Submit
\??\pipe\LOCAL\crashpad_3040_RQRVXOYRHRVSBIBX

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads