hxxps://aus-tax-office[.]services/secure/

Analysis

max time kernel
12s
max time network
19s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
16/08/2023, 05:02

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General

Target

https://aus-tax-office.services/secure/

Score

1^/10

Malware Config

Signatures

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
560	msedge.exe
560	msedge.exe
4672	msedge.exe
4672	msedge.exe
5028	identity_helper.exe
5028	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 8 IoCs

pid	Process
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4672 wrote to memory of 2084	4672	msedge.exe	41
PID 4672 wrote to memory of 2084	4672	msedge.exe	41
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 4472	4672	msedge.exe	82
PID 4672 wrote to memory of 560	4672	msedge.exe	83
PID 4672 wrote to memory of 560	4672	msedge.exe	83
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84
PID 4672 wrote to memory of 416	4672	msedge.exe	84

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://aus-tax-office.services/secure/
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4672
- 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,0x100,0x104,0xd8,0x108,0x7ffd0b1e46f8,0x7ffd0b1e4708,0x7ffd0b1e4718
  2⤵
  PID:2084
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2160,13788925967510594479,17460000384433137521,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2172 /prefetch:2
  2⤵
  PID:4472
- 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=2160,13788925967510594479,17460000384433137521,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2220 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:560
- 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=2160,13788925967510594479,17460000384433137521,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2908 /prefetch:8
  2⤵
  PID:416
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,13788925967510594479,17460000384433137521,131072 --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=3388 /prefetch:1
  2⤵
  PID:2800
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,13788925967510594479,17460000384433137521,131072 --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=3408 /prefetch:1
  2⤵
  PID:2328
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,13788925967510594479,17460000384433137521,131072 --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=4088 /prefetch:1
  2⤵
  PID:4616
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,13788925967510594479,17460000384433137521,131072 --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=3668 /prefetch:1
  2⤵
  PID:3232
- 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=2160,13788925967510594479,17460000384433137521,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4664 /prefetch:8
  2⤵
  PID:3772
- 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=2160,13788925967510594479,17460000384433137521,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4664 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:5028
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,13788925967510594479,17460000384433137521,131072 --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=4076 /prefetch:1
  2⤵
  PID:4104
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,13788925967510594479,17460000384433137521,131072 --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=4192 /prefetch:1
  2⤵
  PID:3604
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,13788925967510594479,17460000384433137521,131072 --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=4968 /prefetch:1
  2⤵
  PID:1428
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,13788925967510594479,17460000384433137521,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4024 /prefetch:1
  2⤵
  PID:3532

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4608

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4480

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

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

Filesize
152B

MD5
b5f5369274e3bfbc449588bbb57bd383

SHA1
58bb46d57bd70c1c0bcbad619353cbe185f34c3b

SHA256
4190bd2ec2c0c65a2b8b97782cd3ae1d6cead80242f3595f06ebc6648c3e3464

SHA512
04a3816af6c5a335cde99d97019a3f68ade65eba70e4667c4d7dd78f78910481549f1dad23a46ccf9efa2e25c6e7a7c78c592b6ace951e1aab106ba06a10fcd6

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

Filesize
5KB

MD5
37586382cb9407599f6b5f14a1ced51e

SHA1
cea9bd30cd10af04771416d4f042e25f301053d5

SHA256
3c09ece70b8eb5b7848028ffbf13b2ca48242d63f2a62d6c4f3817e7cd0eebcc

SHA512
ad4bbf03d6771c5422fd4e207e8cb6f2127afd301cc20e3b6c8144baac4f41862acb0be275144aea81147e51ee53dc82e0629f4f452317a268982176aa71331a

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
12KB

MD5
2afbdcfb3989bc1f7ffa4b8069267a31

SHA1
58a503ba1c411e4914cb1652bab9d6ab91231942

SHA256
f95536048914a07d5c428dc3d47c63f538a3d18d7ded4aa0e82d8d39254e6343

SHA512
22f58cc171d1449e0a93437b0f1877a1ca550271424fdc408a32512aa56830db3083df9a4d5f68e5b876c5cac4c3e0e709ef237df73d16e307b5c6fecca3c36c

Download Submit