hxxps://ecv[.]microsoft[.]com/nBwlu4pqSb

Analysis

max time kernel
100s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
01-05-2024 05:08

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General

Target

https://ecv.microsoft.com/nBwlu4pqSb

Score

1^/10

Malware Config

Signatures

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4092	msedge.exe
4092	msedge.exe
4940	msedge.exe
4940	msedge.exe
3252	identity_helper.exe
3252	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

pid	Process
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe
4940	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4940 wrote to memory of 1516	4940	msedge.exe	84
PID 4940 wrote to memory of 1516	4940	msedge.exe	84
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4316	4940	msedge.exe	85
PID 4940 wrote to memory of 4092	4940	msedge.exe	86
PID 4940 wrote to memory of 4092	4940	msedge.exe	86
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87
PID 4940 wrote to memory of 4088	4940	msedge.exe	87

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://ecv.microsoft.com/nBwlu4pqSb
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:4940
- 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,0x100,0x104,0xd8,0x108,0x7ffea46346f8,0x7ffea4634708,0x7ffea4634718
  2⤵
  PID:1516
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1888,3679324263778004023,13657911110079331517,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1956 /prefetch:2
  2⤵
  PID:4316
- 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=1888,3679324263778004023,13657911110079331517,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2028 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4092
- 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=1888,3679324263778004023,13657911110079331517,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2736 /prefetch:8
  2⤵
  PID:4088
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,3679324263778004023,13657911110079331517,131072 --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=3360 /prefetch:1
  2⤵
  PID:3812
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,3679324263778004023,13657911110079331517,131072 --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=3368 /prefetch:1
  2⤵
  PID:3168
- 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=1888,3679324263778004023,13657911110079331517,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5216 /prefetch:8
  2⤵
  PID:1312
- 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=1888,3679324263778004023,13657911110079331517,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5216 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3252
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,3679324263778004023,13657911110079331517,131072 --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=5108 /prefetch:1
  2⤵
  PID:1076
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,3679324263778004023,13657911110079331517,131072 --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=4468 /prefetch:1
  2⤵
  PID:2832
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,3679324263778004023,13657911110079331517,131072 --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=5304 /prefetch:1
  2⤵
  PID:2264
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,3679324263778004023,13657911110079331517,131072 --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=5516 /prefetch:1
  2⤵
  PID:4328

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1240

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1152

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
152B

MD5
8b2290ca03b4ca5fe52d82550c7e7d69

SHA1
20583a7851a906444204ce8ba4fa51153e6cd494

SHA256
f9ff4871fc5317299de907489d466e630be63d698c8f7cb77cc81faddbecc6d2

SHA512
704ec8122cc1c263dff67ddbb5c20ee0db8a438674d716bc3be5b266ee5629a219b0049d721f9eb2dd8f2d8fda0163659eaa4d3e1f0a6e9072a8ffb92bb2b25d

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

Filesize
152B

MD5
919c29d42fb6034fee2f5de14d573c63

SHA1
24a2e1042347b3853344157239bde3ed699047a8

SHA256
17cd6de97a0c020cb4935739cfef4ec4e074e8d127ac4c531b6dc496580c8141

SHA512
bb7eadd087bbcec8b1b8a49b102b454333f2f9708d36b6ffc3c82fdc52e46873398d967238c3bfe9ac6caef45b017a5fe3938ebf5f3053e4ef9be7b2752b563d

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

Filesize
185B

MD5
dfd2e6baf7c7be69d97169877bb7752b

SHA1
79ca6fe70bd2e2179802ba5df392e8566d85b7de

SHA256
a2a7e4cc4cb396086b29dcab010918fbf8f7c61efa4fbbcf7d45aabeae3203db

SHA512
b311dd2f3e50a1667ae7b992ef77a71bd21b5a106698ac8cb3a17d01dafa13445a323b011422100c572726822fdcbfbb549c77db43671c7c0d39cdb093672a6a

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

Filesize
6KB

MD5
e1c955dc2acca60905fcb263a4616edf

SHA1
e06822dc35697d4cf9a2163ea9b6466d3536c8de

SHA256
7b8fde6f1fb25bd6b66be1d449983a6b13869285fcdd4f765e463c81bf88952e

SHA512
d8d6ee0ff16b3f64780bd7f4f74e04dc33d72f65f2bc2cded6a5c229af1ea9771eb68e02e49788303cbd80f3589797914cca0c3119357767e178049ea8d396ee

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

Filesize
6KB

MD5
a152516776d0e9137601f941a9ae8706

SHA1
53f6aeb215401eb335c1c6a29b214ef708d3e1dc

SHA256
7e6fa141d52b746a77ef6ed1a612efb3aff86c0f62d363a05bbad57abbf2e78a

SHA512
85cda185bfe883cfc011080cdef7898f713907b8ad846f301ec254dd2701776e3fe1538b73d8a1e92ebe1c52f2152aa5bc21bfa0c63242d643b45ccb971b66ca

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
4e7a7920e0c61efcef2c41e28455dd7e

SHA1
9e6bb12a732e3e372016e2e36ad4a6b18db04a97

SHA256
bcf1683260c2998381c4283b58eb121153e75517c1dd8cfeb836067965e81ee5

SHA512
d8b156c3dfe1ae0e38530628e13f6ceec466bacbab7dbf233e0ab91cc6710f1b396738c695d296f618b970eab520064804c971c572e03cb6385cd0173dbdeab5

Download Submit