quasar | hxxps://gofile[.]io/d/0H3xvK

Analysis

max time kernel
97s
max time network
97s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
13-11-2024 23:39

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General

Target

https://gofile.io/d/0H3xvK

Score

10^/10

quasar office04 defense_evasion discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

himato667-58401.portmap.host:58401

Mutex

0e2bc079-3316-407c-a26f-115195d9fe5b

Attributes

encryption_key
D14CC6B8490A41A48C1E115285B6932B9A857EA0
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

Signatures

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
Quasar family
quasar

Quasar payload 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\Downloads\Unconfirmed 101442.crdownload	family_quasar
behavioral1/memory/3540-246-0x0000000000820000-0x0000000000B44000-memory.dmp	family_quasar

Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

better.exeClient.exe

pid process

3540 better.exe
5008 Client.exe

pid	process
3540	better.exe
5008	Client.exe

Drops file in System32 directory 3 IoCs

Processes:

better.exe

description	ioc	process
File created	C:\Windows\system32\SubDir\Client.exe	better.exe
File opened for modification	C:\Windows\system32\SubDir\Client.exe	better.exe
File created	C:\Windows\System32\SubDir\Client.exe\:SmartScreen:$DATA	better.exe

Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 1 IoCs
When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.
defense_evasion

SIP and Trust Provider Hijacking
T1553.003

Processes:

msedge.exe

description ioc process

File opened for modification C:\Users\Admin\Downloads\better.exe:Zone.Identifier msedge.exe
Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Users\Admin\Downloads\better.exe:Zone.Identifier	msedge.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

taskmgr.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

msedge.exe

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

Modifies registry class 2 IoCs

Processes:

msedge.exeMiniSearchHost.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-556537508-2730415644-482548075-1000_Classes\Local Settings	msedge.exe
Key created	\REGISTRY\USER\S-1-5-21-556537508-2730415644-482548075-1000_Classes\Local Settings\MuiCache	MiniSearchHost.exe

NTFS ADS 2 IoCs

Processes:

msedge.exemsedge.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Downloads\Unconfirmed 101442.crdownload:SmartScreen	msedge.exe
File opened for modification	C:\Users\Admin\Downloads\better.exe:Zone.Identifier	msedge.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exeschtasks.exe

pid process

2256 schtasks.exe
2924 schtasks.exe

pid	process
2256	schtasks.exe
2924	schtasks.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

Processes:

msedge.exemsedge.exeidentity_helper.exemsedge.exemsedge.exetaskmgr.exe

pid	process
1308	msedge.exe
1308	msedge.exe
4800	msedge.exe
4800	msedge.exe
224	identity_helper.exe
224	identity_helper.exe
2772	msedge.exe
2772	msedge.exe
3288	msedge.exe
3288	msedge.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 11 IoCs

Processes:

msedge.exe

pid	process
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

better.exeClient.exetaskmgr.exe

description	pid	process
Token: SeDebugPrivilege	3540	better.exe
Token: SeDebugPrivilege	5008	Client.exe
Token: SeDebugPrivilege	4264	taskmgr.exe
Token: SeSystemProfilePrivilege	4264	taskmgr.exe
Token: SeCreateGlobalPrivilege	4264	taskmgr.exe

Suspicious use of FindShellTrayWindow 64 IoCs

Processes:

msedge.exeClient.exetaskmgr.exe

pid	process
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
5008	Client.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe

Suspicious use of SendNotifyMessage 50 IoCs

Processes:

msedge.exeClient.exetaskmgr.exe

pid	process
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
4800	msedge.exe
5008	Client.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe
4264	taskmgr.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

Client.exeMiniSearchHost.exe

pid process

5008 Client.exe
2856 MiniSearchHost.exe

pid	process
5008	Client.exe
2856	MiniSearchHost.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

msedge.exe

description	pid	process	target process
PID 4800 wrote to memory of 1064	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 1064	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 3544	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 1308	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 1308	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe
PID 4800 wrote to memory of 744	4800	msedge.exe	msedge.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --start-maximized --single-argument https://gofile.io/d/0H3xvK
1⤵
- Enumerates system info in registry
- Modifies registry class
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4800
- 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=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7ff982283cb8,0x7ff982283cc8,0x7ff982283cd8
  2⤵
  PID:1064
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1956 /prefetch:2
  2⤵
  PID:3544
- 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=1944,10375995748021114767,7437903517144049478,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2368 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1308
- 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=1944,10375995748021114767,7437903517144049478,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2820 /prefetch:8
  2⤵
  PID:744
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --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=3296 /prefetch:1
  2⤵
  PID:4728
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --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=3304 /prefetch:1
  2⤵
  PID:3248
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --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=4584 /prefetch:1
  2⤵
  PID:4524
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --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=5372 /prefetch:1
  2⤵
  PID:4044
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --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=5392 /prefetch:1
  2⤵
  PID:4336
- C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4628 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:224
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --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=5636 /prefetch:1
  2⤵
  PID:5000
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --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=4852 /prefetch:1
  2⤵
  PID:3096
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --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=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4548 /prefetch:1
  2⤵
  PID:704
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5688 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2772
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --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=5644 /prefetch:1
  2⤵
  PID:1684
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=17 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6064 /prefetch:1
  2⤵
  PID:2196
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5000 /prefetch:8
  2⤵
  PID:3500
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=19 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6344 /prefetch:1
  2⤵
  PID:3392
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --field-trial-handle=1944,10375995748021114767,7437903517144049478,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5648 /prefetch:8
  2⤵
  - Subvert Trust Controls: Mark-of-the-Web Bypass
  - NTFS ADS
  - Suspicious behavior: EnumeratesProcesses
  PID:3288

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4128

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1092

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4348

C:\Users\Admin\Downloads\better.exe
"C:\Users\Admin\Downloads\better.exe"
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
PID:3540
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Client.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2256
- C:\Windows\system32\SubDir\Client.exe
  "C:\Windows\system32\SubDir\Client.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:5008
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Client.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2924

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:2856

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /0
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Subvert Trust Controls

T1553

SIP and Trust Provider Hijacking

T1553.003

Credential Access

Discovery

Browser Information Discovery

T1217

Peripheral Device Discovery

T1120

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
554d6d27186fa7d6762d95dde7a17584

SHA1
93ea7b20b8fae384cf0be0d65e4295097112fdca

SHA256
2fa6145571e1f1ece9850a1ac94661213d3e0d82f1cef7ac1286ff6b2c2017cb

SHA512
57d9008ccabc315bd0e829b19fe91e24bab6ef20bcfab651b937b0f38eec840b58d0aed092a3bbedd2d6a95d5c150372a1e51087572de55672172adc1fc468a7

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

Filesize
152B

MD5
a28bb0d36049e72d00393056dce10a26

SHA1
c753387b64cc15c0efc80084da393acdb4fc01d0

SHA256
684d797e28b7fd86af84bfb217d190e4f5e03d92092d988a6091b2c7bbbd67c1

SHA512
20940fee33aa2194c36a3db92d4fd314ce7eacc2aa745abec62aa031c2a53ba4ff89f2568626e7bd2536090175f8d045c3bb52c5faa5ecc8da8410ab5fc519f7

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

Filesize
288B

MD5
53130d224826aad163f7beee043604ba

SHA1
24f30807d9d8c910167189795bca8c22f7cc4e5a

SHA256
5e0a82ab493a8d24d5263979d906fe5712f97d829a6841e5b1098cb9f0fd2f8a

SHA512
23f6b444bb4cde68976c563f5ce570765ad6d7b9e21b911ee55ea8f439522cf4dee5f27012ec9c6806b14c97040ac31207d273e07d6ef090534748fe21c40111

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

Filesize
930B

MD5
5f18cf770a9c35c14898246aa53b8256

SHA1
9814f1107ed1fb3de856cf908c71a7b363629f40

SHA256
e7a908814fa73fd9e6a94f6e47ac6f1c753a2a38db745b6a606907bf8bdf3846

SHA512
bddb0ec7d22470e7db3ed9b642051bc1208e64da31093dfc0c195f20d8f3ba237a6c838d2a2d2fd804ef65f04a02f0bf41e51cb1b95f463cfaeec9bdd0fcf2a0

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

Filesize
5KB

MD5
d797cc010c6fbb7b146eedc5ffb1df60

SHA1
03cfa1e460ca5fd9db4bd8d3d2ab27922aa7c010

SHA256
4cd64122bcdcdeca423ee250c646cf02e8e1c59ddc38e5556bc26d6109c77965

SHA512
de0dc07273501380780f1c6c6d366c02ddb45046774dc8cba7bb78abdcb6de9b1f4d7333d6a6b515abd1b6b5a7817281f2459e7f86884ff150f69f1cd534241b

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

Filesize
6KB

MD5
96a89c363a6a1f25d73b5d2ceff1cba6

SHA1
8be957cc42aa0abd2b83ead247531af7c1184e52

SHA256
5f76f44e61e115439c87bd20e39a7b5dd640d6a46a7bc002c41ab92258660e5f

SHA512
d57d8f0b3d28196bdd8cfdd6e6454fa3ebb848c67b1d81737a7d2e34e14aeb99b18ce6c8022e851f64f88bb7d3333fce42d3596cabf5edeef5b84edc3bb38a51

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

Filesize
6KB

MD5
268c56cfb665fbdf89bd5fb4f3b13c55

SHA1
f8431eef3f66e10a650ab0e6388ed44fc323e5e6

SHA256
2ac428254f5414a27ac4d41fdfd06a367f41132bd517894a99c129005f2de6fc

SHA512
fd60fd59d018f7920bfb8373a6abb5b35118320ff26b8559dae931d3a12dd7d62723015919daa1d1baf202a2feb20408ea8919ce213321aa9862d748799de0bc

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

Filesize
16B

MD5
46295cac801e5d4857d09837238a6394

SHA1
44e0fa1b517dbf802b18faf0785eeea6ac51594b

SHA256
0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

SHA512
8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

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

Filesize
16B

MD5
206702161f94c5cd39fadd03f4014d98

SHA1
bd8bfc144fb5326d21bd1531523d9fb50e1b600a

SHA256
1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

SHA512
0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

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

Filesize
10KB

MD5
ced4187ce29fb173bcc862c03191b701

SHA1
476af6bc6fb91c30e4a889b8acc65c47e2004c52

SHA256
2b2bbdc04ed1daac4a0c9f14f0fdcc01f7e3020f106f1e0a01286f98e57bca28

SHA512
dbe32bc889cd6d689c84deee7a6465f77fc910f395226192aaa4165ff01b0625aa1961e3137be662bef0c6fb233d1bcb450dc086ae78343ec49807624791dc85

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

Filesize
10KB

MD5
1b747d2d1ac31ca17743cc877b19e6a2

SHA1
606ea2567b705d23e3d3d7a76dfc4d1c84fb92ea

SHA256
2c5a8c83bfcaa061603d5284cbc360687a99607ca4abab8f13c921baf8f9aa62

SHA512
736494ff65819b6d6b56a559fb4a33dbb47252e5cf32948216434dbbc5bad8be340e3b76aa75e9acba07c1f369f97518124e6e2ba70b9bf3b952d1e47ac4d546

Download Submit
C:\Users\Admin\Downloads\Unconfirmed 101442.crdownload

Filesize
3.1MB

MD5
47ec64e3d129b23c44f417cbc2a07aa7

SHA1
e65fbcf69e6e808ebe7bc9b13e483c5fc80d5fa2

SHA256
ccb17adb4b57a95a61acb010c01da98dc150be67a85df2ab40ba9d1f078f8373

SHA512
52247a235b708e98efcf977fd109344e16df9c5a9f13ad5afd395df3f009d9ee6edf81fef9d74a31a9fdec1f851e61642912eb9bc8384b39042b70f9d8b7d510

Download Submit
C:\Users\Admin\Downloads\better.exe:Zone.Identifier

Filesize
26B

MD5
fbccf14d504b7b2dbcb5a5bda75bd93b

SHA1
d59fc84cdd5217c6cf74785703655f78da6b582b

SHA256
eacd09517ce90d34ba562171d15ac40d302f0e691b439f91be1b6406e25f5913

SHA512
aa1d2b1ea3c9de3ccadb319d4e3e3276a2f27dd1a5244fe72de2b6f94083dddc762480482c5c2e53f803cd9e3973ddefc68966f974e124307b5043e654443b98

Download Submit
\??\pipe\LOCAL\crashpad_4800_VMQEKLJYWWVAAVEU

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/3540-246-0x0000000000820000-0x0000000000B44000-memory.dmp

Filesize
3.1MB

Download
memory/4264-266-0x000001BC6F840000-0x000001BC6F841000-memory.dmp

Filesize
4KB

Download
memory/4264-257-0x000001BC6F840000-0x000001BC6F841000-memory.dmp

Filesize
4KB

Download
memory/4264-256-0x000001BC6F840000-0x000001BC6F841000-memory.dmp

Filesize
4KB

Download
memory/4264-255-0x000001BC6F840000-0x000001BC6F841000-memory.dmp

Filesize
4KB

Download
memory/4264-267-0x000001BC6F840000-0x000001BC6F841000-memory.dmp

Filesize
4KB

Download
memory/4264-265-0x000001BC6F840000-0x000001BC6F841000-memory.dmp

Filesize
4KB

Download
memory/4264-264-0x000001BC6F840000-0x000001BC6F841000-memory.dmp

Filesize
4KB

Download
memory/4264-263-0x000001BC6F840000-0x000001BC6F841000-memory.dmp

Filesize
4KB

Download
memory/4264-262-0x000001BC6F840000-0x000001BC6F841000-memory.dmp

Filesize
4KB

Download
memory/4264-261-0x000001BC6F840000-0x000001BC6F841000-memory.dmp

Filesize
4KB

Download
memory/5008-254-0x000000001C290000-0x000000001C342000-memory.dmp

Filesize
712KB

Download
memory/5008-253-0x000000001C180000-0x000000001C1D0000-memory.dmp

Filesize
320KB

Download