4cdeb2eae1cec1ab07077142313c524e9cf360cdec63497538c4405c2d8ded62

Analysis

max time kernel
97s
max time network
134s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
22-01-2025 12:33

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General

Target

Quasar v1.4.1/3rdPartyLicenses/BouncyCastle_license.html
Size

1KB
MD5

bf8d5a737e70dd3493a475b8672f14df
SHA1

01d35be1b65293f7ca43ee1045424599923ab54a
SHA256

6b73c0a42d138d1f05b527c7b936e79af9f44a55d52e35f912da15c0dea43d30
SHA512

ecc23ef88b80944ed135233118db167bf5dc161b0392af25ae846010f9993673bbdb62f88bf6de24dc060a48a0cfe96be261d30f5dac2705ed0f01d987fe24b8

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

Modifies registry class 1 IoCs

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

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2796	msedge.exe
2796	msedge.exe
900	msedge.exe
900	msedge.exe
4460	identity_helper.exe
4460	identity_helper.exe
3908	msedge.exe
3908	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs

pid	Process
900	msedge.exe
900	msedge.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe

Suspicious use of SendNotifyMessage 12 IoCs

pid	Process
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe
900	msedge.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3168	MiniSearchHost.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 3828	900	msedge.exe	77
PID 900 wrote to memory of 3828	900	msedge.exe	77
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 1520	900	msedge.exe	78
PID 900 wrote to memory of 2796	900	msedge.exe	79
PID 900 wrote to memory of 2796	900	msedge.exe	79
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80
PID 900 wrote to memory of 2344	900	msedge.exe	80

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --start-maximized --single-argument C:\Users\Admin\AppData\Local\Temp\Quasar v1.4.1\3rdPartyLicenses\BouncyCastle_license.html
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:900
- 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,0x7ff82fa73cb8,0x7ff82fa73cc8,0x7ff82fa73cd8
  2⤵
  PID:3828
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1884,4665513616303755954,13508673770693372067,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1896 /prefetch:2
  2⤵
  PID:1520
- 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=1884,4665513616303755954,13508673770693372067,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2312 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2796
- 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=1884,4665513616303755954,13508673770693372067,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2684 /prefetch:8
  2⤵
  PID:2344
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1884,4665513616303755954,13508673770693372067,131072 --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=3152 /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=1884,4665513616303755954,13508673770693372067,131072 --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=3168 /prefetch:1
  2⤵
  PID:4388
- 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=1884,4665513616303755954,13508673770693372067,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4964 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4460
- 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=1884,4665513616303755954,13508673770693372067,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3844 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3908

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2928

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

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:424

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:3168

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
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\Preferences

Filesize
5KB

MD5
f3d1258bef3cbe20bfedae11e423e5a8

SHA1
625bbd489c44e031f2b05d86671a7043908e9bf6

SHA256
42558a3bd06edd0cab5e9f29ca970ec8acb1cdc3bd98c6dda00da44fd556d6b0

SHA512
267506dc606d2d1749088dc30719ab0ab6138813469d33f28bd585e5066b028e10c3ad147c76d3fbc74e63bea66ef5811205eba14473b87ddfecac0f3aa80480

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

Filesize
5KB

MD5
3f0654389acd2cbaf05dcd645497dc38

SHA1
63332de864fe2da9c2d5516ab7f5c68930ac72b0

SHA256
dd04ae49239ba42d0c6dcf5d00704d9ff4ce8fc859f55461fe6a4c676ddff4bf

SHA512
c118d97eb06e509963fc866e9cb5fd9e18c2b0d0c9fbcff7b9eb871c027514a510fd845acc4dae0702d930c490fdc3233d45bd9f82aa4b968e52013f9cb0dbce

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
46127b6b7c84128ae0c02847de57593b

SHA1
b9de04bb7fec4ddaa7708c2242889d833dd23022

SHA256
d4f54896d606f33aaf983e974dbe86a28c2d2bcb3f590f34bea12251a8305059

SHA512
1467099c3c6e3fde1cc96d5ff53d1231b9cd97d82720a0f314743f6731b588778ac510fa81109cebf0f62031b8aa1e433df37b92ba7d29f907f42a6b72b34da2

Download Submit
C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat

Filesize
10KB

MD5
ad7a569bafd3a938fe348f531b8ef332

SHA1
7fdd2f52d07640047bb62e0f3d3c946ddd85c227

SHA256
f0e06109256d5577e9f62db2c398974c5002bd6d08892f20517760601b705309

SHA512
b762bae338690082d817b3008144926498a1bd2d6d99be33e513c43515808f9a3184bd10254e5c6a1ff90a9211653f066050249030ad9fe0460ec88335b3d423

Download Submit