edcd285331c398df72997e4b97f8443db1be232a51e5d9e5f39dd2b54dc91fdb

Analysis

max time kernel
6s
max time network
12s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
10/04/2024, 13:59

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General

Target

KrampUI.exe
Size

19.8MB
MD5

8cf778face3c9f5729d5c47a8f09c85b
SHA1

26df06a7827cb32526925c4f3ccdb5e74d9b53af
SHA256

edcd285331c398df72997e4b97f8443db1be232a51e5d9e5f39dd2b54dc91fdb
SHA512

880406fcda4bf7b936ac712a8572f7def6e27b3ce942ec0a8cd12a3bad6da569c586cd5703a4f3b7b0304e248df1a08e8df4718d4d5204f52390c3732269e886
SSDEEP

196608:4tNyafEM878Hb0R4be4V3M0SxLecEFeKqNcc4UcOwi2bUKECy8m9/Zw:6NyafEM8AHb0RMMZObThi2bVEYu/Zw

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	msedgewebview2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedgewebview2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedgewebview2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
276	msedgewebview2.exe
276	msedgewebview2.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs

pid	Process
332	msedgewebview2.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2108	KrampUI.exe
2108	KrampUI.exe
332	msedgewebview2.exe
332	msedgewebview2.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2108	KrampUI.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 332	2108	KrampUI.exe	80
PID 2108 wrote to memory of 332	2108	KrampUI.exe	80
PID 332 wrote to memory of 2628	332	msedgewebview2.exe	81
PID 332 wrote to memory of 2628	332	msedgewebview2.exe	81
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 1892	332	msedgewebview2.exe	82
PID 332 wrote to memory of 276	332	msedgewebview2.exe	83
PID 332 wrote to memory of 276	332	msedgewebview2.exe	83
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84
PID 332 wrote to memory of 4072	332	msedgewebview2.exe	84

C:\Users\Admin\AppData\Local\Temp\KrampUI.exe
"C:\Users\Admin\AppData\Local\Temp\KrampUI.exe"
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Program Files (x86)\Microsoft\EdgeWebView\Application\90.0.818.66\msedgewebview2.exe
  "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\90.0.818.66\msedgewebview2.exe" --embedded-browser-webview=1 --webview-exe-name=KrampUI.exe --webview-exe-version=1.0.6 --user-data-dir="C:\Users\Admin\AppData\Local\KrampUI\EBWebView" --no-default-browser-check --disable-component-extensions-with-background-pages --no-first-run --disable-default-apps --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --disable-features=msWebOOUI,msPdfOOUI,msSmartScreenProtection --disable-popup-blocking --internet-explorer-integration=none --js-flags="--harmony-weak-refs-with-cleanup-some --expose-gc" --lang=en-US --mojo-named-platform-channel-pipe=2108.3084.5597461911535505290
  2⤵
  - Enumerates system info in registry
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:332
- - C:\Program Files (x86)\Microsoft\EdgeWebView\Application\90.0.818.66\msedgewebview2.exe
    "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\90.0.818.66\msedgewebview2.exe" --type=crashpad-handler --user-data-dir=C:\Users\Admin\AppData\Local\KrampUI\EBWebView /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\KrampUI\EBWebView\Crashpad --metrics-dir=C:\Users\Admin\AppData\Local\KrampUI\EBWebView --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeWebView\Application\90.0.818.66\msedgewebview2.exe" --annotation=plat=Win64 "--annotation=prod=Edge WebView2" --annotation=ver=90.0.818.66 --initial-client-data=0x110,0x114,0x118,0xec,0x1c8,0x7ffba1f63cb8,0x7ffba1f63cc8,0x7ffba1f63cd8
    3⤵
    PID:2628
- - C:\Program Files (x86)\Microsoft\EdgeWebView\Application\90.0.818.66\msedgewebview2.exe
    "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\90.0.818.66\msedgewebview2.exe" --type=gpu-process --field-trial-handle=1824,8782437651385226171,15637883703907596277,131072 --enable-features=ForwardMemoryPressureEventsToGpuProcess,UseSwapChainsInSoftware --disable-features=FilterAdsOnAbusiveSites,SpareRendererForSitePerProcess,WebPayments,msApplicationGuard,msAutomaticTabFreeze,msBrowserSettingsSupported,msEdgeFaviconService,msEdgeLinkDoctor,msEdgeMGPFrev1,msEdgeOnRampFRE,msEdgeOnRampImport,msEdgeReadingView,msEdgeSettingsImport,msEdgeSettingsImportV2,msEdgeShoppingUI,msEdgeTranslate,msEdgeUseCaptivePortalService,msImplicitSignin,msPasswordBreachDetection,msPdfOOUI,msReadAloud,msRevokeExtensions,msSendClientDataHeader,msSendClientDataHeaderToEdgeServices,msSmartScreenProtection,msSyncEdgeCollections,msUseLabelingService,msWebAssistHistorySearch,msWebOOUI --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\KrampUI\EBWebView" --webview-exe-name=KrampUI.exe --webview-exe-version=1.0.6 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1832 /prefetch:2
    3⤵
    PID:1892
- - C:\Program Files (x86)\Microsoft\EdgeWebView\Application\90.0.818.66\msedgewebview2.exe
    "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\90.0.818.66\msedgewebview2.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1824,8782437651385226171,15637883703907596277,131072 --enable-features=ForwardMemoryPressureEventsToGpuProcess,UseSwapChainsInSoftware --disable-features=FilterAdsOnAbusiveSites,SpareRendererForSitePerProcess,WebPayments,msApplicationGuard,msAutomaticTabFreeze,msBrowserSettingsSupported,msEdgeFaviconService,msEdgeLinkDoctor,msEdgeMGPFrev1,msEdgeOnRampFRE,msEdgeOnRampImport,msEdgeReadingView,msEdgeSettingsImport,msEdgeSettingsImportV2,msEdgeShoppingUI,msEdgeTranslate,msEdgeUseCaptivePortalService,msImplicitSignin,msPasswordBreachDetection,msPdfOOUI,msReadAloud,msRevokeExtensions,msSendClientDataHeader,msSendClientDataHeaderToEdgeServices,msSmartScreenProtection,msSyncEdgeCollections,msUseLabelingService,msWebAssistHistorySearch,msWebOOUI --lang=en-US --service-sandbox-type=none --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\KrampUI\EBWebView" --webview-exe-name=KrampUI.exe --webview-exe-version=1.0.6 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --mojo-platform-channel-handle=2044 /prefetch:3
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:276
- - C:\Program Files (x86)\Microsoft\EdgeWebView\Application\90.0.818.66\msedgewebview2.exe
    "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\90.0.818.66\msedgewebview2.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1824,8782437651385226171,15637883703907596277,131072 --enable-features=ForwardMemoryPressureEventsToGpuProcess,UseSwapChainsInSoftware --disable-features=FilterAdsOnAbusiveSites,SpareRendererForSitePerProcess,WebPayments,msApplicationGuard,msAutomaticTabFreeze,msBrowserSettingsSupported,msEdgeFaviconService,msEdgeLinkDoctor,msEdgeMGPFrev1,msEdgeOnRampFRE,msEdgeOnRampImport,msEdgeReadingView,msEdgeSettingsImport,msEdgeSettingsImportV2,msEdgeShoppingUI,msEdgeTranslate,msEdgeUseCaptivePortalService,msImplicitSignin,msPasswordBreachDetection,msPdfOOUI,msReadAloud,msRevokeExtensions,msSendClientDataHeader,msSendClientDataHeaderToEdgeServices,msSmartScreenProtection,msSyncEdgeCollections,msUseLabelingService,msWebAssistHistorySearch,msWebOOUI --lang=en-US --service-sandbox-type=utility --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\KrampUI\EBWebView" --webview-exe-name=KrampUI.exe --webview-exe-version=1.0.6 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --mojo-platform-channel-handle=2368 /prefetch:8
    3⤵
    PID:4072
- - C:\Program Files (x86)\Microsoft\EdgeWebView\Application\90.0.818.66\msedgewebview2.exe
    "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\90.0.818.66\msedgewebview2.exe" --type=renderer --js-flags="--harmony-weak-refs-with-cleanup-some --expose-gc" --field-trial-handle=1824,8782437651385226171,15637883703907596277,131072 --enable-features=ForwardMemoryPressureEventsToGpuProcess,UseSwapChainsInSoftware --disable-features=FilterAdsOnAbusiveSites,SpareRendererForSitePerProcess,WebPayments,msApplicationGuard,msAutomaticTabFreeze,msBrowserSettingsSupported,msEdgeFaviconService,msEdgeLinkDoctor,msEdgeMGPFrev1,msEdgeOnRampFRE,msEdgeOnRampImport,msEdgeReadingView,msEdgeSettingsImport,msEdgeSettingsImportV2,msEdgeShoppingUI,msEdgeTranslate,msEdgeUseCaptivePortalService,msImplicitSignin,msPasswordBreachDetection,msPdfOOUI,msReadAloud,msRevokeExtensions,msSendClientDataHeader,msSendClientDataHeaderToEdgeServices,msSmartScreenProtection,msSyncEdgeCollections,msUseLabelingService,msWebAssistHistorySearch,msWebOOUI --lang=en-US --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\KrampUI\EBWebView" --webview-exe-name=KrampUI.exe --webview-exe-version=1.0.6 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --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=2964 /prefetch:1
    3⤵
    PID:3508

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4920

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2340

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\KrampUI\EBWebView\04e2b73a-49ce-4131-ba17-4ad12c4d4016.tmp

Filesize
2KB

MD5
46dc7b34a0756b3b993d6d1afdcd3321

SHA1
918e48642950c056e39718a827dccdfc9b6b6841

SHA256
e583ebe968bbefdfe8d7136db2c39b28aa84e307fd2d0527e6dcc55eb2ad3a02

SHA512
2b14ba6c837a9a27864c900830babe65eeb71cd286f66d02c0c628be3d19f27e6442813d52641e5b480a5f3711e21e0081de28d6d1a0fca9f50b3b2e6d00ac3d

Download Submit
C:\Users\Admin\AppData\Local\KrampUI\EBWebView\Crashpad\settings.dat

Filesize
152B

MD5
e15c5628dfa6229c7e4a2009dd9b8031

SHA1
d31533d78d30c76d682c550aa643157ee88268f1

SHA256
805dbe613ba9ad9d5995750d85a63f9ff719031baca0a194af3c9b87ab828bd2

SHA512
b7b727b6e80356e7c2d9437a8d0068dbc928c5c34453110910669bc42fc3d7646d22f96455c73697d32d22432484504e63c85d3ec4762171fefcdaa18ce85a14

Download Submit
C:\Users\Admin\AppData\Local\KrampUI\EBWebView\Crashpad\settings.dat

Filesize
152B

MD5
cf96024ded14040384a1d7a418b0f79b

SHA1
2562c567e64c7d57a2768bf6c53a81d8271c6f18

SHA256
b0933126f8bfbeefd843d855a10349748b0bc1f0f5afb7dd3c95bfd686df5ee0

SHA512
6b37f7b8c0fb176027bb3dc84cb15834e7db1a878b9ad94c9630b9ca64eedadb5e7d1bc0f1bae8f67a1d332c3973f3b1cc73e66d70bfec9c426609dc49e433ae

Download Submit
C:\Users\Admin\AppData\Local\KrampUI\EBWebView\Crashpad\throttle_store.dat

Filesize
20B

MD5
9e4e94633b73f4a7680240a0ffd6cd2c

SHA1
e68e02453ce22736169a56fdb59043d33668368f

SHA256
41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304

SHA512
193011a756b2368956c71a9a3ae8bc9537d99f52218f124b2e64545eeb5227861d372639052b74d0dd956cb33ca72a9107e069f1ef332b9645044849d14af337

Download Submit
C:\Users\Admin\AppData\Local\KrampUI\EBWebView\Default\GPUCache\data_0

Filesize
8KB

MD5
cf89d16bb9107c631daabf0c0ee58efb

SHA1
3ae5d3a7cf1f94a56e42f9a58d90a0b9616ae74b

SHA256
d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e

SHA512
8cb5b059c8105eb91e74a7d5952437aaa1ada89763c5843e7b0f1b93d9ebe15ed40f287c652229291fac02d712cf7ff5ececef276ba0d7ddc35558a3ec3f77b0

Download Submit
C:\Users\Admin\AppData\Local\KrampUI\EBWebView\Default\GPUCache\data_1

Filesize
264KB

MD5
f50f89a0a91564d0b8a211f8921aa7de

SHA1
112403a17dd69d5b9018b8cede023cb3b54eab7d

SHA256
b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

SHA512
bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

Download Submit
C:\Users\Admin\AppData\Local\KrampUI\EBWebView\Default\GPUCache\data_2

Filesize
8KB

MD5
0962291d6d367570bee5454721c17e11

SHA1
59d10a893ef321a706a9255176761366115bedcb

SHA256
ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7

SHA512
f555e961b69e09628eaf9c61f465871e6984cd4d31014f954bb747351dad9cea6d17c1db4bca2c1eb7f187cb5f3c0518748c339c8b43bbd1dbd94aeaa16f58ed

Download Submit
C:\Users\Admin\AppData\Local\KrampUI\EBWebView\Default\GPUCache\data_3

Filesize
8KB

MD5
41876349cb12d6db992f1309f22df3f0

SHA1
5cf26b3420fc0302cd0a71e8d029739b8765be27

SHA256
e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c

SHA512
e9a4fc1f7cb6ae2901f8e02354a92c4aaa7a53c640dcf692db42a27a5acc2a3bfb25a0de0eb08ab53983132016e7d43132ea4292e439bb636aafd53fb6ef907e

Download Submit
C:\Users\Admin\AppData\Local\KrampUI\EBWebView\Default\Local Storage\leveldb\MANIFEST-000001

Filesize
41B

MD5
5af87dfd673ba2115e2fcf5cfdb727ab

SHA1
d5b5bbf396dc291274584ef71f444f420b6056f1

SHA256
f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4

SHA512
de34583a7dbafe4dd0dc0601e8f6906b9bc6a00c56c9323561204f77abbc0dc9007c480ffe4092ff2f194d54616caf50aecbd4a1e9583cae0c76ad6dd7c2375b

Download Submit
C:\Users\Admin\AppData\Local\KrampUI\EBWebView\Default\Sync Data\LevelDB\CURRENT

Filesize
16B

MD5
46295cac801e5d4857d09837238a6394

SHA1
44e0fa1b517dbf802b18faf0785eeea6ac51594b

SHA256
0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

SHA512
8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

Download Submit
memory/1892-15-0x00007FFBBED60000-0x00007FFBBED61000-memory.dmp

Filesize
4KB

Download