hxxps://www[.]upload[.]ee/files/16622656/skuld[.]exe[.]html

Analysis

max time kernel
480s
max time network
485s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
12/05/2024, 06:44

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General

Target

https://www.upload.ee/files/16622656/skuld.exe.html

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
4812	msedge.exe
4812	msedge.exe
4092	msedge.exe
4092	msedge.exe
1220	identity_helper.exe
1220	identity_helper.exe
2736	msedge.exe
2736	msedge.exe
2736	msedge.exe
2736	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 9 IoCs

pid	Process
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe
4092	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4092 wrote to memory of 1148	4092	msedge.exe	82
PID 4092 wrote to memory of 1148	4092	msedge.exe	82
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 3360	4092	msedge.exe	84
PID 4092 wrote to memory of 4812	4092	msedge.exe	85
PID 4092 wrote to memory of 4812	4092	msedge.exe	85
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86
PID 4092 wrote to memory of 4164	4092	msedge.exe	86

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://www.upload.ee/files/16622656/skuld.exe.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:4092
- 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,0x100,0x104,0xd8,0x108,0x7ffb611046f8,0x7ffb61104708,0x7ffb61104718
  2⤵
  PID:1148
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2240,182893032588515557,16769627540728257527,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2212 /prefetch:2
  2⤵
  PID:3360
- 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=2240,182893032588515557,16769627540728257527,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2312 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4812
- 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=2240,182893032588515557,16769627540728257527,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2872 /prefetch:8
  2⤵
  PID:4164
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,182893032588515557,16769627540728257527,131072 --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=3372 /prefetch:1
  2⤵
  PID:5060
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,182893032588515557,16769627540728257527,131072 --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=3408 /prefetch:1
  2⤵
  PID:4152
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,182893032588515557,16769627540728257527,131072 --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=5116 /prefetch:1
  2⤵
  PID:4604
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,182893032588515557,16769627540728257527,131072 --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=5132 /prefetch:1
  2⤵
  PID:1712
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,182893032588515557,16769627540728257527,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5420 /prefetch:1
  2⤵
  PID:2684
- 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=2240,182893032588515557,16769627540728257527,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4548 /prefetch:8
  2⤵
  PID:116
- 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=2240,182893032588515557,16769627540728257527,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4548 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1220
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,182893032588515557,16769627540728257527,131072 --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=4944 /prefetch:1
  2⤵
  PID:4660
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,182893032588515557,16769627540728257527,131072 --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=4380 /prefetch:1
  2⤵
  PID:3932
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,182893032588515557,16769627540728257527,131072 --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=3988 /prefetch:1
  2⤵
  PID:3008
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2240,182893032588515557,16769627540728257527,131072 --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=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5616 /prefetch:1
  2⤵
  PID:412
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2240,182893032588515557,16769627540728257527,131072 --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=1908 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2736

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2408

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3080

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\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
a8e767fd33edd97d306efb6905f93252

SHA1
a6f80ace2b57599f64b0ae3c7381f34e9456f9d3

SHA256
c8077a9fc79e2691ef321d556c4ce9933ca0570f2bbaa32fa32999dfd5f908bb

SHA512
07b748582fe222795bce74919aa06e9a09025c14493edb6f3b1f112d9a97ac2225fe0904cac9adf2a62c98c42f7877076e409803014f0afd395f4cc8be207241

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

Filesize
152B

MD5
439b5e04ca18c7fb02cf406e6eb24167

SHA1
e0c5bb6216903934726e3570b7d63295b9d28987

SHA256
247d0658695a1eb44924a32363906e37e9864ba742fe35362a71f3a520ad2654

SHA512
d0241e397060eebd4535197de4f1ae925aa88ae413a3a9ded6e856b356c4324dfd45dddfef9a536f04e4a258e8fe5dc1586d92d1d56b649f75ded8eddeb1f3e2

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

Filesize
264B

MD5
56acd4b01b4bfcf54cdbfc5fd95e0b33

SHA1
da177f441b28df161261d8dd371463117b9667bf

SHA256
2489adae26b00a988eee23e89a14192536c8e3335882a2570f77839be692131a

SHA512
f039c31048bca22efbbb23224c4db998818496be81f50fe146ea1360f1eccfeec8d20a087d4b5a958fc949612fc3c386abf5c9cbe7a3c464dfb3cdbde58ba16e

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

Filesize
2KB

MD5
ea63a91c50be3d757f7e21f0f3c38cae

SHA1
18be56de78327e304fad8abbff61530b3f26330d

SHA256
1881bfb79cc59dd611538ec8b83239b2eac84a25935d488aa3674c5925e4a180

SHA512
d815de16cf5faf3d14c7f391eeb312d55b0fb18f587caf851e55070d376f72c461317147b1266284cf5d4aeabcd241e3864e0d943d51cf5a22b6d8d70cb147f8

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

Filesize
6KB

MD5
7b5a65771d84076f377a249252a4c259

SHA1
703bc45f7756b068ad5024f790bf0ff9875cc103

SHA256
0329841b34d63a700d7e3c66708be77000e27a920354bdd8d43aeea16a4055e4

SHA512
115e55fc73e5e5959017c85c7edfa9a7fbdc8c1e2faf4cbcad4f5b5e6dfc13eab843601eb7c2487f63a763f0579b58c42241a3b6313d98a9fbc5045b7a0306b8

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

Filesize
7KB

MD5
a9c2efddca427351a9920305e516eacf

SHA1
c1c202574186c1ff23763b0a76b915c0e2c0bed5

SHA256
904a3f24e256c9cbb20d02db563264b4603255dc4e8a72dbe8ecdada7667e441

SHA512
71d786da1937557564a61ac87c21a035977399d75f6c199cd93e664682a452d77ac0b60932d1ad680ceff210f59549654c6343325491b99d2251d4e9f7007a5b

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\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\Local State

Filesize
11KB

MD5
5f20f4224a1456dcfc011c9602e9828b

SHA1
ad4394da64af7561fba81a7c4717025f447dc56f

SHA256
69076e3afe3859acfa76f26b6cfc12a8faa626630adeac50dc85e213ba78b235

SHA512
c1240180e14ab63498abef5bf44f72fda2cac7113b90a0cea931d18a9ce914f5fcc7f26bc33b08bc9c8e324fffdee527e147c9ba58065d6fb8fc56267718872e

Download Submit