hxxps://officeonlinebrzztumax[.]com

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
06/11/2023, 05:50

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

https://officeonlinebrzztumax.com

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
4024	msedge.exe
4024	msedge.exe
4900	msedge.exe
4900	msedge.exe
4448	identity_helper.exe
4448	identity_helper.exe
5452	msedge.exe
5452	msedge.exe
5452	msedge.exe
5452	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 10 IoCs

pid	Process
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe
4900	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4900 wrote to memory of 656	4900	msedge.exe	86
PID 4900 wrote to memory of 656	4900	msedge.exe	86
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 728	4900	msedge.exe	87
PID 4900 wrote to memory of 4024	4900	msedge.exe	88
PID 4900 wrote to memory of 4024	4900	msedge.exe	88
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89
PID 4900 wrote to memory of 1008	4900	msedge.exe	89

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://officeonlinebrzztumax.com
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:4900
- 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,0x100,0x104,0xd8,0x108,0x7ffef34146f8,0x7ffef3414708,0x7ffef3414718
  2⤵
  PID:656
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2228,8140794395905492091,4200632598971469339,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2240 /prefetch:2
  2⤵
  PID:728
- 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=2228,8140794395905492091,4200632598971469339,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2320 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4024
- 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=2228,8140794395905492091,4200632598971469339,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2868 /prefetch:8
  2⤵
  PID:1008
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2228,8140794395905492091,4200632598971469339,131072 --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=3340 /prefetch:1
  2⤵
  PID:3324
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2228,8140794395905492091,4200632598971469339,131072 --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=3332 /prefetch:1
  2⤵
  PID:3484
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2228,8140794395905492091,4200632598971469339,131072 --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=4356 /prefetch:1
  2⤵
  PID:3268
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2228,8140794395905492091,4200632598971469339,131072 --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=3620 /prefetch:1
  2⤵
  PID:1160
- 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=2228,8140794395905492091,4200632598971469339,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4368 /prefetch:8
  2⤵
  PID:2060
- 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=2228,8140794395905492091,4200632598971469339,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4368 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4448
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2228,8140794395905492091,4200632598971469339,131072 --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=4448 /prefetch:1
  2⤵
  PID:1368
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2228,8140794395905492091,4200632598971469339,131072 --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=4364 /prefetch:1
  2⤵
  PID:3692
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2228,8140794395905492091,4200632598971469339,131072 --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=3620 /prefetch:1
  2⤵
  PID:4080
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2228,8140794395905492091,4200632598971469339,131072 --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=3784 /prefetch:1
  2⤵
  PID:4636
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2228,8140794395905492091,4200632598971469339,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3040 /prefetch:1
  2⤵
  PID:5756
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2228,8140794395905492091,4200632598971469339,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1764 /prefetch:1
  2⤵
  PID:5372
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2228,8140794395905492091,4200632598971469339,131072 --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=3020 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:5452

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:432

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3888

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

Loading Replay Monitor...

Downloads

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

Filesize
152B

MD5
8f30b8232b170bdbc7d9c741c82c4a73

SHA1
9abfca17624e13728bd7fa6547e7e26e0695d411

SHA256
0916f816feace92a097267171f8aa8f944074530574a7aa1f9f0334899dfa3eb

SHA512
587d973b13b97c5b92621c776c18348a13ef451ccda32977baa529de33e47a27e7920a57fe7c4d0b2f0e4a8a3bca5c62cc5798cf97f19556028f88afb38b37be

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
749c3efafb41b4631311a0cd3ed0d637

SHA1
51d7d4ab3db90c6455a7b20b745b49f028517d67

SHA256
6b9a74b370bb853bfe62efdbbaf55cc9c5d1f11e392c574b3c448706ab7cc4b4

SHA512
d1f45a8aad44034d9d270f654259f4d152552b220544d59eb2c21cf9792110fcabea06b512bf12b8989ee163d4b5ad6840bf44485b5a6d04251622e415540ae6

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

Filesize
5KB

MD5
6cf3b5b99cd1c8d36b0a9daf7baf9dad

SHA1
7d7ffad7d4dc47ac324138d53d30766726232974

SHA256
5a7b8f5db573857a4ed07171d90cf8847bbf5f3f2b263def892c39f4ac95420d

SHA512
53db44f273f3c9b6d5cb34720ff72331fafab2feeea4a75ebdd1c8ef6e273cb24389d157fa383661a594e05a61a82cee2bf01ae1e5d4c4fcf42bd6a521ef344e

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

Filesize
24KB

MD5
0b8abe9b2d273da395ec7c5c0f376f32

SHA1
d7b266fb7310cc71ab5fdb0ef68f5788e702f2ec

SHA256
3751deeb9ad3db03e6b42dedcac68c1c9c7926a2beeaaa0820397b6ddb734a99

SHA512
3dd503ddf2585038aa2fedc53d20bb9576f4619c3dc18089d7aba2c12dc0288447b2a481327c291456d7958488ba2e2d4028af4ca2d30e92807c8b1cdcffc404

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
3340948dc799282d7db835d2fde420ef

SHA1
2accbbfdc2d6c686cd527ada028cd890115a3932

SHA256
5b15f215e9aafd51e4cc76857e821b01a4ba8c017d19764bee67755b641e1108

SHA512
a5b51d1debb82651322d2d6171f086b01221c6efef6ea409cff1f81e163a8753c3bbe59e481406aed9d3a9a0101e659903dbdeedd9305f5b024f4ed3af8158c3

Download Submit