hxxp://captchalfa[.]azurewebsites[.]net

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2024 14:02

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General

Target

http://captchalfa.azurewebsites.net

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
212	msedge.exe
212	msedge.exe
392	msedge.exe
392	msedge.exe
4340	identity_helper.exe
4340	identity_helper.exe
4964	msedge.exe
4964	msedge.exe
4964	msedge.exe
4964	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe
392	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 1732	392	msedge.exe	86
PID 392 wrote to memory of 1732	392	msedge.exe	86
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 3824	392	msedge.exe	90
PID 392 wrote to memory of 212	392	msedge.exe	88
PID 392 wrote to memory of 212	392	msedge.exe	88
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89
PID 392 wrote to memory of 3568	392	msedge.exe	89

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://captchalfa.azurewebsites.net
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:392
- 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=0xc4,0x74,0x78,0x40,0x7c,0x7ff9230046f8,0x7ff923004708,0x7ff923004718
  2⤵
  PID:1732
- 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=2100,3206863497383841011,16471634261822066384,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2404 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:212
- 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=2100,3206863497383841011,16471634261822066384,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2932 /prefetch:8
  2⤵
  PID:3568
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2100,3206863497383841011,16471634261822066384,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2136 /prefetch:2
  2⤵
  PID:3824
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2100,3206863497383841011,16471634261822066384,131072 --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:2340
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2100,3206863497383841011,16471634261822066384,131072 --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:2488
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2100,3206863497383841011,16471634261822066384,131072 --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=4756 /prefetch:1
  2⤵
  PID:4396
- 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=2100,3206863497383841011,16471634261822066384,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5336 /prefetch:8
  2⤵
  PID:2096
- 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=2100,3206863497383841011,16471634261822066384,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5336 /prefetch:8
  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=renderer --field-trial-handle=2100,3206863497383841011,16471634261822066384,131072 --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=5492 /prefetch:1
  2⤵
  PID:1672
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2100,3206863497383841011,16471634261822066384,131072 --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=5508 /prefetch:1
  2⤵
  PID:1088
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2100,3206863497383841011,16471634261822066384,131072 --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=4800 /prefetch:1
  2⤵
  PID:388
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2100,3206863497383841011,16471634261822066384,131072 --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=4864 /prefetch:1
  2⤵
  PID:4828
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2100,3206863497383841011,16471634261822066384,131072 --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=4668 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4964

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3352

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4556

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\1b897094-48ee-47fc-9a45-004dbca2be50.tmp

Filesize
10KB

MD5
947e39b649c869d47b775589ed88ce05

SHA1
34a2519696a869f0a41fa2add07f7627ea950839

SHA256
cd99230508eb02ae1dab9e8c8ddcc5fb67e1b0e08983ab199aa1745e5520b445

SHA512
e76b56aa9c65984b9072212356d2cbc78dd77069247b1be2eb4ee322ad8301d8ee19fd1b5e45ae26b486685a307b0ff031e97c1944408b8629bf58be6377476a

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

Filesize
152B

MD5
3e71d66ce903fcba6050e4b99b624fa7

SHA1
139d274762405b422eab698da8cc85f405922de5

SHA256
53b34e24e3fbb6a7f473192fc4dec2ae668974494f5636f0359b6ca27d7c65e3

SHA512
17e2f1400000dd6c54c8dc067b31bcb0a3111e44a9d2c5c779f484a51ada92d88f5b6e6847270faae8ff881117b7ceaaf8dfe9df427cbb8d9449ceacd0480388

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

Filesize
5KB

MD5
be10de7edbb6a82c6db8f2786509e1a4

SHA1
6be3a4220cd467a8cad3bfcea2621ebb2121b8bf

SHA256
792409544689673f11f6cb72042759b783fd33c93cd034d916a21c9c84c548c7

SHA512
17aad2adb9a9018aff09b6893bd5147aa2ffcf06cd2290648f2909562e5a42ca83b045bd849c1df9936a05cd1567ac2a8f99f4678a75a72746b1305d99f6f479

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

Filesize
5KB

MD5
3c92d82848b2b343fe3334ae0d6f8103

SHA1
52fe977cd2b57775eebd67d6117064c56be8ca97

SHA256
312095b3075cb70600e360511b7e8634b846b7d8a55e67919205c1bb7b94f4df

SHA512
44c7bb6826b8056f1aeb74a9754ec992d1d21e8d9f984ee8e3f3b3308af865f51abaf181b0bc47d288d14a4bcbb948f029fd6147c7d6486e04d1c954875a010f

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

Filesize
24KB

MD5
1b1b142e24215f033793d1311e24f6e6

SHA1
74e23cffbf03f3f0c430e6f4481e740c55a48587

SHA256
3dca3ec65d1f4109c6b66a1a47b2477afaf8d15306a523f297283da0eccbe8b1

SHA512
a569385710e3a0dc0d6366476c457927a847a2b2298c839e423c485f7dcce2468a58d20133f6dc81913056fb579957e67f63cf1e20b910d61816210447cd1f1f

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