hxxps://mytax-au-update[.]info

Analysis

max time kernel
146s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
22/09/2023, 04:52

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General

Target

https://mytax-au-update.info

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
5052	msedge.exe
5052	msedge.exe
3272	msedge.exe
3272	msedge.exe
4556	identity_helper.exe
4556	identity_helper.exe
4876	msedge.exe
4876	msedge.exe
4876	msedge.exe
4876	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

pid	Process
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe
3272	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3272 wrote to memory of 4572	3272	msedge.exe	37
PID 3272 wrote to memory of 4572	3272	msedge.exe	37
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 4900	3272	msedge.exe	83
PID 3272 wrote to memory of 5052	3272	msedge.exe	84
PID 3272 wrote to memory of 5052	3272	msedge.exe	84
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86
PID 3272 wrote to memory of 4108	3272	msedge.exe	86

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://mytax-au-update.info
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:3272
- 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,0x100,0x104,0xd8,0x108,0x7fff61fa46f8,0x7fff61fa4708,0x7fff61fa4718
  2⤵
  PID:4572
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2188,17236832478293052130,7090476431141747864,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2172 /prefetch:2
  2⤵
  PID:4900
- 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=2188,17236832478293052130,7090476431141747864,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2248 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:5052
- 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=2188,17236832478293052130,7090476431141747864,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2708 /prefetch:8
  2⤵
  PID:4108
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,17236832478293052130,7090476431141747864,131072 --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:4072
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,17236832478293052130,7090476431141747864,131072 --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:2596
- 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=2188,17236832478293052130,7090476431141747864,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5304 /prefetch:8
  2⤵
  PID:4676
- 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=2188,17236832478293052130,7090476431141747864,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5304 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4556
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,17236832478293052130,7090476431141747864,131072 --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=5444 /prefetch:1
  2⤵
  PID:3116
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,17236832478293052130,7090476431141747864,131072 --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=5524 /prefetch:1
  2⤵
  PID:2560
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,17236832478293052130,7090476431141747864,131072 --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=5392 /prefetch:1
  2⤵
  PID:4856
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,17236832478293052130,7090476431141747864,131072 --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=5340 /prefetch:1
  2⤵
  PID:4232
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2188,17236832478293052130,7090476431141747864,131072 --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=4628 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4876

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:1736

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
4d25fc6e43a16159ebfd161f28e16ef7

SHA1
49941a4bc3ed1ef90c7bcf1a8f0731c6a68facb4

SHA256
cee74fad9d775323a5843d9e55c770314e8b58ec08653c7b2ce8e8049df42bb5

SHA512
ea598fb8bfe15c777daeb025da98674fe8652f7341e5d150d188c46744fce11c4d20d1686d185039c5025c9a4252d1585686b1c3a4df4252e69675aaf37edfc1

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

Filesize
72B

MD5
339cf03344c0309ea37aae51f745024b

SHA1
a72de872cc745761da1fce4c50ab16ec43d356d5

SHA256
8d368fd5cae9d66244acde5a8d63c7c83552b71a0eb3b57aef3d9cafe0b856b2

SHA512
8353e8bcb5041c3fe9d1605aa854a6d79acc93af0236a79471fdb87c000072a4fc0c90fc7e5a4595102c97ca0dae6b344bb795ebc85c3c8383060e0959677ccb

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

Filesize
477B

MD5
45ff1c02f982471c0d533177c4b30312

SHA1
7ad74e8ef69844c33a3dfb8acb6e89a1610c73bb

SHA256
d0ca6631d884121b756c55729778f1f9db68d6b97b3f0a04f2b9899af621c7de

SHA512
19aff366b42356916252b17f0c655c7e47a3834da40dc07d2940bd424b58b57f14d687ac3e4ad1bd7c0a5195cfea525b7768b377107217465a3900a164e5e944

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

Filesize
5KB

MD5
935e6dd57e6c6d0c74e0696b19527174

SHA1
a75bb0655382812817b4ff32def0f638bc9a2144

SHA256
87d4f6209d4c76c639a0b60de0ca92b51a5331ed0da1f85b6adb3ecd0864d1f1

SHA512
36a1c20844f61664e409d6b90b8311bb7ee15d8fd0775416dc95c3b16f56e1a948acb572122bee58eaf467f21424c27167c25ba030a5911b4f7cbd8f12c91b01

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

Filesize
5KB

MD5
eb2575946d3456ff8b324a02efce1f07

SHA1
4f46664bc1dd15eadc608849d1234595f294387a

SHA256
d8cbb0ac718115423f8458ba4cb3b1eb2297f536b928dfc0a936309a973ea040

SHA512
634ba75abf195b046e9f58f5a780004c51efddcf8be35d5bcad7bc1337aa07b391edfaf3b8a99d1a18428b3b2e2a5846921ccc9243f6f23d71135337f86aac5d

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

Filesize
24KB

MD5
d555d038867542dfb2fb0575a0d3174e

SHA1
1a5868d6df0b5de26cf3fc7310b628ce0a3726f0

SHA256
044cac379dddf0c21b8e7ee4079d21c67e28795d14e678dbf3e35900f25a1e2e

SHA512
d8220966fe6c3ae4499bc95ab3aead087a3dd915853320648849d2fc123a4acd157b7dba64af0108802522575a822651ecc005523c731423d9131ee679c2712f

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\d075e846-b204-447c-8e84-49183024f45a.tmp

Filesize
111B

MD5
285252a2f6327d41eab203dc2f402c67

SHA1
acedb7ba5fbc3ce914a8bf386a6f72ca7baa33c6

SHA256
5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026

SHA512
11ce7cb484fee66894e63c31db0d6b7ef66ad0327d4e7e2eb85f3bcc2e836a3a522c68d681e84542e471e54f765e091efe1ee4065641b0299b15613eb32dcc0d

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
6e323b58dc7e91b4d62714bba64917cc

SHA1
742ae14c9b89e328beb9b9784d279082465d78a9

SHA256
527f811cd8e248bfdbbb0f4e1ec3ce79f88bbad4e456e72c124774676b304a28

SHA512
fc21ec347e115701fb1d7f44f75ab74cee5f2c7603002d829603f2c2a605dbfa837d35387506863e62b1f695bc89a807653e983d8d34a8928bffc5eca31a7a94

Download Submit