hxxps://gofile[.]io/d/RefrBR

Analysis

max time kernel
25s
max time network
25s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 02:31

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General

Target

https://gofile.io/d/RefrBR

Score

3^/10

discovery

Malware Config

Signatures

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

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 6 IoCs

pid	Process
5100	msedge.exe
5100	msedge.exe
4816	msedge.exe
4816	msedge.exe
1756	identity_helper.exe
1756	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 8 IoCs

pid	Process
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe
4816	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 1812	4816	msedge.exe	82
PID 4816 wrote to memory of 1812	4816	msedge.exe	82
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 4580	4816	msedge.exe	83
PID 4816 wrote to memory of 5100	4816	msedge.exe	84
PID 4816 wrote to memory of 5100	4816	msedge.exe	84
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85
PID 4816 wrote to memory of 220	4816	msedge.exe	85

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://gofile.io/d/RefrBR
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:4816
- 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,0x100,0x104,0xd8,0x108,0x7ffdcc5046f8,0x7ffdcc504708,0x7ffdcc504718
  2⤵
  PID:1812
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2136,13107718483480327194,3332964485540903756,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2148 /prefetch:2
  2⤵
  PID:4580
- 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=2136,13107718483480327194,3332964485540903756,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2368 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:5100
- 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=2136,13107718483480327194,3332964485540903756,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2632 /prefetch:8
  2⤵
  PID:220
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2136,13107718483480327194,3332964485540903756,131072 --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=3376 /prefetch:1
  2⤵
  PID:2700
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2136,13107718483480327194,3332964485540903756,131072 --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=3388 /prefetch:1
  2⤵
  PID:1196
- 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=2136,13107718483480327194,3332964485540903756,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5268 /prefetch:8
  2⤵
  PID:2516
- 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=2136,13107718483480327194,3332964485540903756,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5268 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1756
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2136,13107718483480327194,3332964485540903756,131072 --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=5344 /prefetch:1
  2⤵
  PID:740
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2136,13107718483480327194,3332964485540903756,131072 --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=5520 /prefetch:1
  2⤵
  PID:1484
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2136,13107718483480327194,3332964485540903756,131072 --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=4912 /prefetch:1
  2⤵
  PID:3780
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2136,13107718483480327194,3332964485540903756,131072 --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=4856 /prefetch:1
  2⤵
  PID:4848
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2136,13107718483480327194,3332964485540903756,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6004 /prefetch:1
  2⤵
  PID:1964
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2136,13107718483480327194,3332964485540903756,131072 --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=3624 /prefetch:1
  2⤵
  PID:400

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4268

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

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
d7114a6cd851f9bf56cf771c37d664a2

SHA1
769c5d04fd83e583f15ab1ef659de8f883ecab8a

SHA256
d2c75c7d68c474d4b8847b4ba6cfd09fe90717f46dd398c86483d825a66e977e

SHA512
33bdae2305ae98e7c0de576de5a6600bd70a425e7b891d745cba9de992036df1b3d1df9572edb0f89f320e50962d06532dae9491985b6b57fd37d5f46f7a2ff8

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

Filesize
152B

MD5
719923124ee00fb57378e0ebcbe894f7

SHA1
cc356a7d27b8b27dc33f21bd4990f286ee13a9f9

SHA256
aa22ab845fa08c786bd3366ec39f733d5be80e9ac933ed115ff048ff30090808

SHA512
a207b6646500d0d504cf70ee10f57948e58dab7f214ad2e7c4af0e7ca23ce1d37c8c745873137e6c55bdcf0f527031a66d9cc54805a0eac3678be6dd497a5bbc

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

Filesize
5KB

MD5
c71af0319194c0ca47faa12908acc7bf

SHA1
5aa37d2c9e77b7c7c5c40c5eeab18afd7bbfb429

SHA256
542adc223db63ec3f7ee5a4415faf4777c8c212440c1e437a0635d8c8d3df61b

SHA512
6b1eed8dd82ea602aa3d71f9c5cecdd6cca5ffee79c61fbbb2af37ed456a79f8ad82def24501f98b528dfe3ab0058e5ffac2a447c317f67ca4c6a1b98c2d1261

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

Filesize
6KB

MD5
c0af814780975df75634cc1ff7877038

SHA1
297371b2073dc787b44a62e9a331875138f15422

SHA256
efc2d795e8b7bf90ee4a4b3ec6b5d4dbabad7dd68eaeeb88f32c2f0ecae033d1

SHA512
656a756e35456508eead7c7904cc477c74b4fa9cc516555617387aaf126e54873aaf1156b455a7f82c42f12d73da237b6b355832f41e4e05dfcecb095303a55b

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
7b29878235acd6f7dc6094d579a1c3fd

SHA1
0faeb0beaacc4b287fc969abfecc68102ded5aad

SHA256
b225303627ae3bc7f3c1c0eb781c36d6ff8637acf7595b7f45fb6c5b22eb8e9a

SHA512
8d55ba7e197a90ae5f95df619d027e20bbfe2865be4207a20436726aa389dafccb2f415f2abd0490ef4fc8cdbd86829b3c6682989bdd5a61beac51e2ee0b5679

Download Submit