fda6b5f03b8fbcf70b9b336ab9bb42b45b3a66911bdee538f5d074724177ba55

Analysis

max time kernel
146s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 17:15

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General

Target

Wind/zstd.dll
Size

639KB
MD5

91032907f8dc67be99885b0b1169837a
SHA1

63b6cd2442d68907ae64bdf72095ad08f0b4d00e
SHA256

ab04353fdcf07994a048ad4dbec1579436066f047fdd63d36e4e29f4b1dd6a2b
SHA512

83ab14249829f9d98d41363a7a6b5b7be8dfda5f51a017145da7930e42cc9de2ce79a524960d115dc533343b62bfdefdce817d95d0c779687e5ee15f2347856f
SSDEEP

12288:AlNqGONdPaszBp/I3MV4IIdsdVWoRpEn/x:AfazBpw3MV4RdsdVWoRpE

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

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2508	msedge.exe
2508	msedge.exe
2988	msedge.exe
2988	msedge.exe
4420	identity_helper.exe
4420	identity_helper.exe
2016	msedge.exe
2016	msedge.exe
2016	msedge.exe
2016	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe
2988	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 548	2988	msedge.exe	101
PID 2988 wrote to memory of 548	2988	msedge.exe	101
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 1804	2988	msedge.exe	102
PID 2988 wrote to memory of 2508	2988	msedge.exe	103
PID 2988 wrote to memory of 2508	2988	msedge.exe	103
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104
PID 2988 wrote to memory of 2352	2988	msedge.exe	104

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Wind\zstd.dll,#1
1⤵
PID:2476

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --profile-directory=Default
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:2988
- 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=0x11c,0x120,0x124,0xf8,0x128,0x7ffdf7e846f8,0x7ffdf7e84708,0x7ffdf7e84718
  2⤵
  PID:548
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2140,17644139891036292726,1869470938061812399,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2160 /prefetch:2
  2⤵
  PID:1804
- 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=2140,17644139891036292726,1869470938061812399,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2092 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2508
- 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=2140,17644139891036292726,1869470938061812399,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2792 /prefetch:8
  2⤵
  PID:2352
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,17644139891036292726,1869470938061812399,131072 --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=3380 /prefetch:1
  2⤵
  PID:3428
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,17644139891036292726,1869470938061812399,131072 --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=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3388 /prefetch:1
  2⤵
  PID:4888
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,17644139891036292726,1869470938061812399,131072 --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=5024 /prefetch:1
  2⤵
  PID:4928
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,17644139891036292726,1869470938061812399,131072 --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=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5080 /prefetch:1
  2⤵
  PID:5076
- 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=2140,17644139891036292726,1869470938061812399,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3460 /prefetch:8
  2⤵
  PID:3952
- 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=2140,17644139891036292726,1869470938061812399,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3460 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4420
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,17644139891036292726,1869470938061812399,131072 --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=3964 /prefetch:1
  2⤵
  PID:3836
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,17644139891036292726,1869470938061812399,131072 --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=4868 /prefetch:1
  2⤵
  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=2140,17644139891036292726,1869470938061812399,131072 --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=4056 /prefetch:1
  2⤵
  PID:4384
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2140,17644139891036292726,1869470938061812399,131072 --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=1076 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2016

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:440

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2500

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
e4f80e7950cbd3bb11257d2000cb885e

SHA1
10ac643904d539042d8f7aa4a312b13ec2106035

SHA256
1184ee8d32d0edecddd93403fb888fad6b3e2a710d37335c3989cc529bc08124

SHA512
2b92c9807fdcd937e514d4e7e1cc7c2d3e3aa162099b7289ceac2feea72d1a4afbadf1c09b3075d470efadf9a9edd63e07ea7e7a98d22243e45b3d53473fa4f0

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

Filesize
152B

MD5
2dc1a9f2f3f8c3cfe51bb29b078166c5

SHA1
eaf3c3dad3c8dc6f18dc3e055b415da78b704402

SHA256
dcb76fa365c2d9ee213b224a91cdd806d30b1e8652d72a22f2371124fa4479fa

SHA512
682061d9cc86a6e5d99d022da776fb554350fc95efbf29cd84c1db4e2b7161b76cd1de48335bcc3a25633079fb0bd412e4f4795ed6291c65e9bc28d95330bb25

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

Filesize
5KB

MD5
bfe997a7b24273c8c91738ae73e3ea69

SHA1
752434179aa0ff6ad103456ebca5970ae88d0f82

SHA256
0a4926d9be9571d1bffbbb2872caf027f5575f258952a9a1ae645a2a61a37d8e

SHA512
9b0785fd6e056769b62cf45116efa9045cbc6f4e1923ccd1da54a6c6ab6fee234ed9597ae647c61768244561a3c048a2eba95c70c3228d9eb7dfdb49944352c4

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

Filesize
6KB

MD5
07b969c31802c04fabb4f3f8a4451be6

SHA1
40337b1eae3ea925b770233a30516acc65692130

SHA256
1d1b54efd0e804236ad55086d73c63e3713a8ee188c02e6b2bf0ecb265b3bb7f

SHA512
54504b1c35b651b59d716ecff0715f4ce062d7c7be366e98168f4297235ca42e30dc0affd5d577fb052b26f734e364f0b48bb9f867ee8bb81e9421345379b255

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
11KB

MD5
adf99c44875da17550280b5cc9b15928

SHA1
41d9d64dcbc5e587526f897f6d93470cb09aec35

SHA256
21a4848a77b8af81baa1b07c2dd893774b849a0c25124701b3bae68070c68369

SHA512
4767a95a4c6ec5dce8a554bdf52cefdd4644e9ad2416eda021f5baab868a0098150279669dcc0fadd770f5ce643c1f63291b6150a529f6271983ddc2aa63e473

Download Submit