hxxp://www[.]welcorp[.]com/broadcasts/optout[.]asp?BID=69470940&DistID=1&E=kelly[.]chandler@melbourne[.]vic[.]gov[.]au

Analysis

max time kernel
145s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
06-06-2024 08:03

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General

Target

http://www.welcorp.com/broadcasts/optout.asp?BID=69470940&DistID=1&[email protected]

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 10 IoCs

pid	Process
4340	msedge.exe
4340	msedge.exe
3412	msedge.exe
3412	msedge.exe
448	identity_helper.exe
448	identity_helper.exe
4008	msedge.exe
4008	msedge.exe
4008	msedge.exe
4008	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe
3412	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3412 wrote to memory of 4640	3412	msedge.exe	82
PID 3412 wrote to memory of 4640	3412	msedge.exe	82
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4528	3412	msedge.exe	85
PID 3412 wrote to memory of 4340	3412	msedge.exe	86
PID 3412 wrote to memory of 4340	3412	msedge.exe	86
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87
PID 3412 wrote to memory of 3104	3412	msedge.exe	87

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.welcorp.com/broadcasts/optout.asp?BID=69470940&DistID=1&[email protected]
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:3412
- 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=0x100,0x104,0x108,0xdc,0x10c,0x7ff84d7846f8,0x7ff84d784708,0x7ff84d784718
  2⤵
  PID:4640
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2060,15984573863599417557,12175180902987817001,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2236 /prefetch:2
  2⤵
  PID:4528
- 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=2060,15984573863599417557,12175180902987817001,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2308 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4340
- 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=2060,15984573863599417557,12175180902987817001,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2288 /prefetch:8
  2⤵
  PID:3104
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,15984573863599417557,12175180902987817001,131072 --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=3244 /prefetch:1
  2⤵
  PID:1004
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,15984573863599417557,12175180902987817001,131072 --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=3288 /prefetch:1
  2⤵
  PID:3536
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,15984573863599417557,12175180902987817001,131072 --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=5092 /prefetch:1
  2⤵
  PID:3360
- 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=2060,15984573863599417557,12175180902987817001,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3436 /prefetch:8
  2⤵
  PID:3584
- 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=2060,15984573863599417557,12175180902987817001,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3436 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:448
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,15984573863599417557,12175180902987817001,131072 --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=3448 /prefetch:1
  2⤵
  PID:4304
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,15984573863599417557,12175180902987817001,131072 --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=5188 /prefetch:1
  2⤵
  PID:4512
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,15984573863599417557,12175180902987817001,131072 --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=5020 /prefetch:1
  2⤵
  PID:4584
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,15984573863599417557,12175180902987817001,131072 --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=5036 /prefetch:1
  2⤵
  PID:2484
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2060,15984573863599417557,12175180902987817001,131072 --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=2196 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4008

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3304

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2184

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
2daa93382bba07cbc40af372d30ec576

SHA1
c5e709dc3e2e4df2ff841fbde3e30170e7428a94

SHA256
1826d2a57b1938c148bf212a47d947ed1bfb26cfc55868931f843ee438117f30

SHA512
65635cb59c81548a9ef8fdb0942331e7f3cd0c30ce1d4dba48aed72dbb27b06511a55d2aeaadfadbbb4b7cb4b2e2772bbabba9603b3f7d9c8b9e4a7fbf3d6b6b

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

Filesize
152B

MD5
ecdc2754d7d2ae862272153aa9b9ca6e

SHA1
c19bed1c6e1c998b9fa93298639ad7961339147d

SHA256
a13d791473f836edcab0e93451ce7b7182efbbc54261b2b5644d319e047a00a7

SHA512
cd4fb81317d540f8b15f1495a381bb6f0f129b8923a7c06e4b5cf777d2625c30304aee6cc68aa20479e08d84e5030b43fbe93e479602400334dfdd7297f702f2

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

Filesize
179B

MD5
754c4d8d16c397294fe2d5e3524fbaad

SHA1
e3d70d71b0e1e1e22138ae256988784d17d960b8

SHA256
36020b399fddff3c94cec075de9630d7686f5560b9738d0e116309e2bfdc75c7

SHA512
8b34a658630a320614735c3c3620c57d81d5fe746a72a30aff66ead2742e012cc78cb7a72d9ffac410f8bd1daf859a63fff55833e2651ce5407a6b473911e5b0

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

Filesize
111B

MD5
807419ca9a4734feaf8d8563a003b048

SHA1
a723c7d60a65886ffa068711f1e900ccc85922a6

SHA256
aa10bf07b0d265bed28f2a475f3564d8ddb5e4d4ffee0ab6f3a0cc564907b631

SHA512
f10d496ae75db5ba412bd9f17bf0c7da7632db92a3fabf7f24071e40f5759c6a875ad8f3a72bad149da58b3da3b816077df125d0d9f3544adba68c66353d206c

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

Filesize
5KB

MD5
af0cee154c55dd8ad15f8a468fb8ca5f

SHA1
3000e34d118f8cc30c91e5bf9b341671d038bcb7

SHA256
d3797f97a8f89778ed4871c6f6345e7204ecc337ea8005375e600aac251f56ec

SHA512
76282a9eff156757f5927c0f424a156b70471e6d1fdb9f74b5006076de9122b26ba1f080285ba04991e83f25983bbdee4708c383b25e4844f8f9b75e3a8c783d

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

Filesize
6KB

MD5
163692ce333a17c51bcb6c4a728f2c79

SHA1
e327810af3dd2e7a02c53bbc693d173eb3f5d072

SHA256
1f86a40443abfe5d4c614a093bdc73ff26376dc4a27bb9986989cd33188218c5

SHA512
e85f33a53b10e87d7c694d1803b4ee1bea244a9594d1195fff4998cb42b8840e767f27c64803923450d5761ac4cd2a496f904ccb698ebcdbcbeb06a5545c9d95

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
a36ae554b4b890bdd74148fc9c4c4155

SHA1
14054c7de36bff81c6062c5e5da05c8290db4bc7

SHA256
360448ec98eab81f86db4eb982c28ce9b0bfae4c7cae65071a493e35051693e8

SHA512
4c745182b9c547b2832eba0e381a768a0117b3daa4f77322cdf9130a1dad443058eb33075857ef0844c7b24eba894754e3c66bc1327a5a7a030cf043a7b04f3d

Download Submit