hxxp://tax-refsecure[.]online/aus/

Analysis

max time kernel
146s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
21/11/2023, 01:09

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General

Target

http://tax-refsecure.online/aus/

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
4524	msedge.exe
4524	msedge.exe
2884	msedge.exe
2884	msedge.exe
4036	identity_helper.exe
4036	identity_helper.exe
3564	msedge.exe
3564	msedge.exe
3564	msedge.exe
3564	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 1808	2884	msedge.exe	84
PID 2884 wrote to memory of 1808	2884	msedge.exe	84
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4072	2884	msedge.exe	86
PID 2884 wrote to memory of 4524	2884	msedge.exe	85
PID 2884 wrote to memory of 4524	2884	msedge.exe	85
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87
PID 2884 wrote to memory of 3008	2884	msedge.exe	87

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://tax-refsecure.online/aus/
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:2884
- 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,0x100,0x104,0xd8,0x108,0x7ffdc79546f8,0x7ffdc7954708,0x7ffdc7954718
  2⤵
  PID:1808
- 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=2124,16961568106897981906,9935550033716925438,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2208 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4524
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2124,16961568106897981906,9935550033716925438,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2116 /prefetch:2
  2⤵
  PID:4072
- 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=2124,16961568106897981906,9935550033716925438,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2840 /prefetch:8
  2⤵
  PID:3008
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,16961568106897981906,9935550033716925438,131072 --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=3308 /prefetch:1
  2⤵
  PID:4784
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,16961568106897981906,9935550033716925438,131072 --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=3452 /prefetch:1
  2⤵
  PID:464
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,16961568106897981906,9935550033716925438,131072 --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=4972 /prefetch:1
  2⤵
  PID:3904
- 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=2124,16961568106897981906,9935550033716925438,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5672 /prefetch:8
  2⤵
  PID:5100
- 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=2124,16961568106897981906,9935550033716925438,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5672 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4036
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,16961568106897981906,9935550033716925438,131072 --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=5768 /prefetch:1
  2⤵
  PID:1708
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,16961568106897981906,9935550033716925438,131072 --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=5752 /prefetch:1
  2⤵
  PID:2088
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,16961568106897981906,9935550033716925438,131072 --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=4652 /prefetch:1
  2⤵
  PID:3164
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,16961568106897981906,9935550033716925438,131072 --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=5972 /prefetch:1
  2⤵
  PID:4660
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2124,16961568106897981906,9935550033716925438,131072 --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=4840 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3564

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1936

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2136

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\13e07be1-cfe2-4c16-bb0f-a8447c116367.tmp

Filesize
10KB

MD5
708edb22df56bf2f7e4387c390246e8c

SHA1
639bdc7ed1b551161c3f709c125cce5a01293f4e

SHA256
f23080d9d5c0aa2ad6c303e8964d16ee145a18749d8d5741f4660cec4f5aef70

SHA512
72b77ddbc558727c18c7fba4e30d21160e7989578a37f45c74592b2a4bd921059d58d4e8199d6a2893392ef6e2c86ebff4e9426bff11c1a9cb1595f337f133b7

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

Filesize
152B

MD5
6276613a51dae3b747451bc05e24edfa

SHA1
96ff591013fc8d378a9b37ea580d8ec6e98bbde5

SHA256
d17c0519716f5fa61ccf7289220c5e8917a36fbb29e48a86bb1122c9e3fcafb0

SHA512
dc84cd5df4867849039ecea2c98b1aeb435399b9503b1384159b2d08fe180b9f3daadc98f55c6ab28faa1e66dea8abfa4e702232a7027d933b0eca91fcf6b5f3

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

Filesize
72B

MD5
afd39daeadf0ef8d567037fe07f2e2ed

SHA1
d5401565f8d1a27ce665559a4ad9907fb6209db5

SHA256
11e8620a2b6b02f48a08a2bcf3c67ff51908633c34999d23425a3a68982d5b1e

SHA512
9eb7c0a8a009ef84b395a0a449dea75865fa0eeb938c75911525a0eaff171372f3eeb3e1c90a94554f94fc5bd439d9fe1736a2136dd39001cf134cb2704f3fb4

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

Filesize
902B

MD5
34196d0b9e0540c35fe25fd929ff0105

SHA1
7ad7c1bfa4e99760e0e445745cd57bb2ee4a1749

SHA256
14bb72fc4bbd50595dcb5eeb174acd81a64f0cda3f52a7bb4fd60b9fcfdf576e

SHA512
f3b8b20bc2c09b5f11355065e963cb2344e5d99f95e08770db64da324433a0408cdece50fb7ac35bbe527ba868c936c0a9d92711eaf718cc8a05c57c85778e65

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
cffec0fcc46b22248fe102a91d285b43

SHA1
2c4319311ec81a60fdeaee3fc05950648f7051b3

SHA256
a8f5f89bd56d85edd54049d6d09721f193938e7f7321dafb368c49fa4d5c702a

SHA512
8184fab1ef68811e040ddfa5d75232693e29693f11f97481049d6b99100136db6f2276da2f578b61145868270746a7036a3ed0a4a263a57060b0a3f80e9b9504

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

Filesize
5KB

MD5
3c29adae2ab1ae20df2a39e963632be3

SHA1
c71c820011ca1f7e83b04a753ff225a06e660696

SHA256
8db7947975819ae354936a933a8567ea0a0044849d2806d3d2ad9d281657a204

SHA512
fbb97cf236fd1115c44804e5ecae75bdb30ff723f0e6948c8f6c5ca76ace30f6165f76ee88a9bfbdac84a62e60d2cab80db1feb0bc66a54cfd46d0db9cc1088c

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

Filesize
24KB

MD5
f1881400134252667af6731236741098

SHA1
6fbc4f34542d449afdb74c9cfd4a6d20e6cdc458

SHA256
d6fcec1880d69aaa0229f515403c1a5ac82787f442c37f1c0c96c82ec6c15b75

SHA512
18b9ac92c396a01b6662a4a8a21b995d456716b70144a136fced761fd0a84c99e8bd0afb9585625809b87332da75727b82a07b151560ea253a3b8c241b799450

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