hxxps://reviewinfo-tax1[.]com/mytax/MYGOV-ATO/

Analysis

max time kernel
146s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
01-09-2023 02:47

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General

Target

https://reviewinfo-tax1.com/mytax/MYGOV-ATO/

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 10 IoCs

pid	Process
1228	msedge.exe
1228	msedge.exe
1584	msedge.exe
1584	msedge.exe
1984	identity_helper.exe
1984	identity_helper.exe
1400	msedge.exe
1400	msedge.exe
1400	msedge.exe
1400	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

pid	Process
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe
1584	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1584 wrote to memory of 3328	1584	msedge.exe	38
PID 1584 wrote to memory of 3328	1584	msedge.exe	38
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 2148	1584	msedge.exe	84
PID 1584 wrote to memory of 1228	1584	msedge.exe	85
PID 1584 wrote to memory of 1228	1584	msedge.exe	85
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86
PID 1584 wrote to memory of 4996	1584	msedge.exe	86

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://reviewinfo-tax1.com/mytax/MYGOV-ATO/
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:1584
- 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,0x100,0x104,0xd8,0x108,0x7fffb39246f8,0x7fffb3924708,0x7fffb3924718
  2⤵
  PID:3328
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1848,15130108436999211918,6272452188859073207,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2200 /prefetch:2
  2⤵
  PID:2148
- 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=1848,15130108436999211918,6272452188859073207,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2252 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1228
- 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=1848,15130108436999211918,6272452188859073207,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3000 /prefetch:8
  2⤵
  PID:4996
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1848,15130108436999211918,6272452188859073207,131072 --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=3376 /prefetch:1
  2⤵
  PID:1084
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1848,15130108436999211918,6272452188859073207,131072 --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=3368 /prefetch:1
  2⤵
  PID:2656
- 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=1848,15130108436999211918,6272452188859073207,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5308 /prefetch:8
  2⤵
  PID:4140
- 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=1848,15130108436999211918,6272452188859073207,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5308 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1984
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1848,15130108436999211918,6272452188859073207,131072 --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=5636 /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=1848,15130108436999211918,6272452188859073207,131072 --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=3836 /prefetch:1
  2⤵
  PID:728
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1848,15130108436999211918,6272452188859073207,131072 --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=4948 /prefetch:1
  2⤵
  PID:4396
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1848,15130108436999211918,6272452188859073207,131072 --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=3504 /prefetch:1
  2⤵
  PID:2372
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1848,15130108436999211918,6272452188859073207,131072 --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=4724 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1400

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2168

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4364

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
4d686809520430031d6ecf2c8de5f735

SHA1
64e3932e857e1b34077e1b7793f40ad35abaf6b8

SHA256
c5f61a0a6d91e818e9ada3e527de4a5975767d6425823b33ea107cec0c99874b

SHA512
8a5adfc8d90f0752672879cf18f55be8e80e36e2a7bdf281ee3967f9953413dc31c33a0b52ada169c3f628896a28caba1769d8d33874903260ad6c8d5a925e36

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index

Filesize
72B

MD5
d9f65417d094fd1f73d8c6ca0d4856d7

SHA1
0b34951aea5358f85b7bd353f58104b37923cb3f

SHA256
bf4ddf070643003f603a6054a697c5b510d8729815a8908b1dadaec8c1cca5b3

SHA512
db8bf8dd77000d333f6ccaa4631dda6e8e314ff3b4e1aabcfde07a46c649e90e50c5ba19f6b5226f07d7f59b1fbe1c81967e82b691e719b5b430dd794433a502

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

Filesize
871B

MD5
77ecfceb82a4c03910ae7c78951b6dad

SHA1
0d9d9d2e9ddbab71d48407ee61bcc49e98ccbb6e

SHA256
56716a61682398f0e5e78e32fd937e047be1cc450a8ad52953fdd55a94d4ef3f

SHA512
bfc86e6d7c9ccefe041cf89d5ac1c5cf826a83df0b2beba1eb558765e8cfe4b24f5688bee27b6321182568022f889eccad87ca78137390b047086ff5f34e0991

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
eafb736384ad90648ca51448c57b22e5

SHA1
a45eafa50f99c81532892e379496b88346c0b52c

SHA256
8423e481c62045d9d7f2e74972c1e21c9663ac05182913a6f34be6c71f087a95

SHA512
a2f19e371f4507add67b6a14952efed62435bb4de75c80c0b8e160d1662d328cae468573b455493681d609c8bb208d104398279d5df1a12baabd240b27f0b3d0

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

Filesize
5KB

MD5
8ee27088b8833827ec87c310efb7eee3

SHA1
8f9556daee9da28d42014bc00f12cf44c6969d92

SHA256
9df9efb15aba4ddd75f9853718654ae62dc1d9fe6d845b4385414f1738bcbade

SHA512
f81a497f70649414302b75e665996e6156b5714e5ab628edd5957c2e15cb0ce9523f13fcaf958a0c235bbd6e3ed30acb8c4d0707c7376095feac7ea65e4db21f

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

Filesize
24KB

MD5
0ea195b890a87594deb9c6aa963c1426

SHA1
4065f3fe0b70940a968f2ca342bac336be048082

SHA256
c51961b927f80537702a7ff5f77501c1e088cbfcc22199675400ea88876f4ef9

SHA512
59ae3e1e530b5c081089ee615fb5d227a1964068bcda421de1319e958438353bbed8ca275897deb097a564a6a60400e1faf6c3e1aa5764d1fbba15bdc1d9ddf5

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
1366b9b24bd03ce694209bce918a1924

SHA1
e87deec926229aa6eca7b3aafa2d44d14174479c

SHA256
2724bc9f228f8c5566407258327feb0b4894776a451f8945ab05c4646bd397fd

SHA512
4b9b20319663938a9e54096e844bc5da01228ed121501d167ad3aa088d7a95441c7723230aad20d10ae760569f7bfc8815fda10099afbd895b4129b28ef1d4d4

Download Submit