hxxp://rhyc[.]com[.]cn

Resubmissions

02/08/2023, 13:41

230802-qzcppsga6s 1

Analysis

max time kernel
146s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
02/08/2023, 13:41

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General

Target

http://rhyc.com.cn

Score

1^/10

Malware Config

Signatures

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3888	msedge.exe
3888	msedge.exe
1176	msedge.exe
1176	msedge.exe
4252	identity_helper.exe
4252	identity_helper.exe
220	msedge.exe
220	msedge.exe
220	msedge.exe
220	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 10 IoCs

pid	Process
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe
1176	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1176 wrote to memory of 1388	1176	msedge.exe	84
PID 1176 wrote to memory of 1388	1176	msedge.exe	84
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 4752	1176	msedge.exe	85
PID 1176 wrote to memory of 3888	1176	msedge.exe	86
PID 1176 wrote to memory of 3888	1176	msedge.exe	86
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87
PID 1176 wrote to memory of 4724	1176	msedge.exe	87

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://rhyc.com.cn
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1176
- 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,0x100,0x104,0xd8,0x108,0x7ff936a646f8,0x7ff936a64708,0x7ff936a64718
  2⤵
  PID:1388
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2160,4901697144442811739,9224222508933567548,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2140 /prefetch:2
  2⤵
  PID:4752
- 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=2160,4901697144442811739,9224222508933567548,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2208 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3888
- 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=2160,4901697144442811739,9224222508933567548,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2708 /prefetch:8
  2⤵
  PID:4724
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,4901697144442811739,9224222508933567548,131072 --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=3252 /prefetch:1
  2⤵
  PID:1424
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,4901697144442811739,9224222508933567548,131072 --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=3404 /prefetch:1
  2⤵
  PID:3772
- 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=2160,4901697144442811739,9224222508933567548,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5048 /prefetch:8
  2⤵
  PID:2892
- 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=2160,4901697144442811739,9224222508933567548,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5048 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4252
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,4901697144442811739,9224222508933567548,131072 --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=5276 /prefetch:1
  2⤵
  PID:4568
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,4901697144442811739,9224222508933567548,131072 --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=5144 /prefetch:1
  2⤵
  PID:4492
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,4901697144442811739,9224222508933567548,131072 --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=5576 /prefetch:1
  2⤵
  PID:3400
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,4901697144442811739,9224222508933567548,131072 --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=4848 /prefetch:1
  2⤵
  PID:4440
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,4901697144442811739,9224222508933567548,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5948 /prefetch:1
  2⤵
  PID:1848
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,4901697144442811739,9224222508933567548,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3500 /prefetch:1
  2⤵
  PID:1728
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,4901697144442811739,9224222508933567548,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4768 /prefetch:1
  2⤵
  PID:4408
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,4901697144442811739,9224222508933567548,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3572 /prefetch:1
  2⤵
  PID:2052
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2160,4901697144442811739,9224222508933567548,131072 --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=3488 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:220

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1128

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3052

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

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

Filesize
152B

MD5
8411007bafe7b1182af1ad3a1809b4f8

SHA1
4a78ee0762aadd53accae8bb211b8b18dc602070

SHA256
1f274d0d144942d00e43fb94f9c27fc91c68dce50cd374ac6be4472b08215ca3

SHA512
909e2e33b7614cb8bbd14e0dfff1b7f98f4abbf735f88292546ce3bfa665e4cb5ee4418561004e56afc5dd30d21483b05f6358dad5624c0dc3ab1ba9a3be18eb

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

Filesize
111B

MD5
285252a2f6327d41eab203dc2f402c67

SHA1
acedb7ba5fbc3ce914a8bf386a6f72ca7baa33c6

SHA256
5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026

SHA512
11ce7cb484fee66894e63c31db0d6b7ef66ad0327d4e7e2eb85f3bcc2e836a3a522c68d681e84542e471e54f765e091efe1ee4065641b0299b15613eb32dcc0d

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

Filesize
5KB

MD5
7e40dbb446a5cfbf9c8273c008e979bc

SHA1
dc254f3017970b960bafd9700cdff714dfadbae3

SHA256
e1e5c60560717095b4705033209be36a8306b5e2c7c2228374184aa493d8328f

SHA512
eebef0a71f68f927cbdb476c5566c434b4141fee8eaf293cf023531731b38d57b1f510de46bb6f61b7f51d20f6c850f7d63e0f6b465aefb11aceb684f19aa683

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

Filesize
5KB

MD5
6ac2de7c2a75bfe355746af5547998e9

SHA1
331fd1f5f0aa827570e4e637ef509b2744f9c8ef

SHA256
9c8d664d1b313fd5cd7e383c3c1920d08c191b940fae6dd00213384f78cff999

SHA512
e597fdad82d3187289b79640d3bde818fc98e88c7dd98032bd2f2edf2e1b5af2cb5306f61c0b4f845a7e4ae0d4f349f0d4224d004c1ee48a838e6efa419b6533

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

Filesize
5KB

MD5
7ca1d18629dd448cb6b2df1878a25146

SHA1
4c81047b0e89a632ddb575e25b3c6a2ff86b367c

SHA256
f43b703af6e13d6bf8e3a363dbb4aa93576519c552a1926eca5ea3f0ebc8ebdc

SHA512
2543f6f911365f61ad761b87118c3f2ae0e33f158ca583b1464f3a9b1f45963cf2601f30df147326d73016557d8acbe223f334884dbe2b968ed76c3935b0794b

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

Filesize
24KB

MD5
8caf4d73cc5a7d5e3fb3f9f1a9d4a0cc

SHA1
83f8586805286b716c70ddd14a2b7ec6a4d9d0fe

SHA256
0e0c905b688340512e84db6cf8af6dbdfe29195fefde15bd02e4917a2c5fda8c

SHA512
084ef25ea21ee1083735c61b758281ba84b607e42d0186c35c3700b24a176ada47bf2e76ed7dadd3846f2b458c977e83835ced01cda47cdd7ab2d00e5a1a294e

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
12KB

MD5
0e11d4d3e69ca0a49bd9746c78843893

SHA1
9dad3596e367c27cc7ebb6f54d9ef120fd93ccf1

SHA256
f99073fcc8825c1a2aa1b8215d970350b305d666d9c3e505c34fe15a5d8c1578

SHA512
999956d115dbf8c40a376560197dca1f7024b1c2ab0edd1f0f0cd3fdc0a7f0434c60c230cbdaf71c947aa77aa3bab8d3ba01aa758435df4490a7703300b26e26

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

Filesize
12KB

MD5
215f83b2a6187be2c0d8b76793239c48

SHA1
ecc4b348d084bc30191814f3dc69dfd8df237c29

SHA256
66eadbf3f29aea77f82378aba9e0aa43d5a155f29ed9271eeec6b64e29f36766

SHA512
8ff38c28bca38f01a903ca3b87785bf4f0d640a4e0c2ddaff2d4a1d212be56d09ccc4bdd9ca9a1e92fc5c7d9164854580f565a671b7d9bb63b49571f6fe5b3f4

Download Submit