hxxp://cdn[.]bootcss[.]com

Analysis

max time kernel
57s
max time network
63s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
16/10/2023, 12:33

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General

Target

http://cdn.bootcss.com

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 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

pid	Process
2764	msedge.exe
2764	msedge.exe
3608	msedge.exe
3608	msedge.exe
440	identity_helper.exe
440	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe
3608	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3608 wrote to memory of 4532	3608	msedge.exe	83
PID 3608 wrote to memory of 4532	3608	msedge.exe	83
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 1816	3608	msedge.exe	84
PID 3608 wrote to memory of 2764	3608	msedge.exe	85
PID 3608 wrote to memory of 2764	3608	msedge.exe	85
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86
PID 3608 wrote to memory of 4560	3608	msedge.exe	86

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://cdn.bootcss.com
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:3608
- 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,0x100,0x104,0xd8,0x108,0x7ff88c1046f8,0x7ff88c104708,0x7ff88c104718
  2⤵
  PID:4532
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2084,10895644750485682122,10649776537223111602,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2120 /prefetch:2
  2⤵
  PID:1816
- 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=2084,10895644750485682122,10649776537223111602,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2276 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2764
- 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=2084,10895644750485682122,10649776537223111602,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2928 /prefetch:8
  2⤵
  PID:4560
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2084,10895644750485682122,10649776537223111602,131072 --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=3360 /prefetch:1
  2⤵
  PID:3396
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2084,10895644750485682122,10649776537223111602,131072 --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=3356 /prefetch:1
  2⤵
  PID:5016
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2084,10895644750485682122,10649776537223111602,131072 --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=4692 /prefetch:1
  2⤵
  PID:2980
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2084,10895644750485682122,10649776537223111602,131072 --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=5296 /prefetch:1
  2⤵
  PID:3860
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2084,10895644750485682122,10649776537223111602,131072 --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=5324 /prefetch:1
  2⤵
  PID:3636
- 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=2084,10895644750485682122,10649776537223111602,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2188 /prefetch:8
  2⤵
  PID:3384
- 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=2084,10895644750485682122,10649776537223111602,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2188 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:440
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2084,10895644750485682122,10649776537223111602,131072 --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=4828 /prefetch:1
  2⤵
  PID:1520
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2084,10895644750485682122,10649776537223111602,131072 --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=3612 /prefetch:1
  2⤵
  PID:4508

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4064

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1100

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
3d8f4eadb68a3e3d1bf2fa3006af5510

SHA1
d5d8239ec8a3bf5dadf52360350251d90d9e0142

SHA256
85a80218f4e5b578993436a6b8066b60508dd85a09579a4cb6757c2f9550d96c

SHA512
554773c4edd8456efaa23ac24970af5441e307424de3d2f41539c2cf854d57e7f725bf0c9986347fd3f2ff43efc8f69fd73c5d773bbfd504a99daca2b272a554

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
dc9101e372e15c724d56ad46694d54ac

SHA1
8a0fdd835ea54574bfd0f5b98d26fdff65c0f877

SHA256
f49cf6ad111e10412b0dc087f0e797210300a54a27c68a312f029f5d9e75bf42

SHA512
1c4c0464f11fb1261a3f8c3944ae462b1574683b7dc362648b3c17c737909967a13879e4d8fe17461d34e7dd857ca8a554e6dfbd3267254d517c1bad76f0caef

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

Filesize
5KB

MD5
b465736eaa0c2f893628eb92b4c08cb1

SHA1
1bc1182b161fd472082cddd31138c7b3a265e153

SHA256
f2a09661facd046bff2dfac9550184ee4d9ea0f9860121063b26954b48186d0b

SHA512
ed80ba66dd84cb3b66acd62516ddadb493d9ae961869f93ade47b4fd9736495f20cedc32206f82db5202d10d0ef21b0341c892e9be1d2ff05f74a7876fffb591

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

Filesize
5KB

MD5
401e0061770921bcf431d0f812225c1c

SHA1
cb4592f9e0f3c557d072ad1eacd6d73ba676f6a6

SHA256
97a972ef39710fcd02b51613d491bd614072b0926a75ec5351284eee4cf9c87d

SHA512
07d3c410d909846db4fe02589d6a5aece71d3e1bd1a15b342b47114fc229a6f83877243066ac2de483a8a28a8f87e9ad47d629dd04fa543c38912a89c0be82b3

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

Filesize
24KB

MD5
d985875547ce8936a14b00d1e571365f

SHA1
040d8e5bd318357941fca03b49f66a1470824cb3

SHA256
8455a012296a7f4b10ade39e1300cda1b04fd0fc1832ffc043e66f48c6aecfbf

SHA512
ca31d3d6c44d52a1f817731da2e7ac98402cd19eeb4b48906950a2f22f961c8b1f665c3eaa62bf73cd44eb94ea377f7e2ceff9ef682a543771344dab9dbf5a38

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
10KB

MD5
1c822d611aec3d043709d14efde12db2

SHA1
ec06ffbe42b191d8275f4119ead96bdfa897b0d8

SHA256
d4eed344a9a5a7c9b5869cef09552d00225f57fa407d84052ee2b4d86fcf8e64

SHA512
c512bdd04dc76c91b7020f785ba2bf025f532c7173043c6919de3dab6443b064c0bb0b0363ad38798df0b0c4cf462eaf7663fc472332d913f8ceb0f117f34a5d

Download Submit