hxxps://musycas[.]com/ess/apiess/c2hhcm9uLm93ZW5Adm9sdm8uY29t

Analysis

max time kernel
146s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
24-10-2023 08:46

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General

Target

https://musycas.com/ess/apiess/c2hhcm9uLm93ZW5Adm9sdm8uY29t

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
1012	msedge.exe
1012	msedge.exe
500	msedge.exe
500	msedge.exe
1892	identity_helper.exe
1892	identity_helper.exe
1372	msedge.exe
1372	msedge.exe
1372	msedge.exe
1372	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

pid	Process
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe
500	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 500 wrote to memory of 1564	500	msedge.exe	85
PID 500 wrote to memory of 1564	500	msedge.exe	85
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 396	500	msedge.exe	88
PID 500 wrote to memory of 1012	500	msedge.exe	86
PID 500 wrote to memory of 1012	500	msedge.exe	86
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87
PID 500 wrote to memory of 796	500	msedge.exe	87

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://musycas.com/ess/apiess/c2hhcm9uLm93ZW5Adm9sdm8uY29t
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:500
- 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,0x100,0x104,0xd8,0x108,0x7ff85ac146f8,0x7ff85ac14708,0x7ff85ac14718
  2⤵
  PID:1564
- 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=2088,8941759805108545322,876037101407904072,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2148 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1012
- 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=2088,8941759805108545322,876037101407904072,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2632 /prefetch:8
  2⤵
  PID:796
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2088,8941759805108545322,876037101407904072,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2096 /prefetch:2
  2⤵
  PID:396
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,8941759805108545322,876037101407904072,131072 --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=3332 /prefetch:1
  2⤵
  PID:4852
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,8941759805108545322,876037101407904072,131072 --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=3340 /prefetch:1
  2⤵
  PID:1588
- 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=2088,8941759805108545322,876037101407904072,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5188 /prefetch:8
  2⤵
  PID:1852
- 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=2088,8941759805108545322,876037101407904072,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5188 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1892
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,8941759805108545322,876037101407904072,131072 --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=5292 /prefetch:1
  2⤵
  PID:3384
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,8941759805108545322,876037101407904072,131072 --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=5212 /prefetch:1
  2⤵
  PID:2640
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,8941759805108545322,876037101407904072,131072 --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=3988 /prefetch:1
  2⤵
  PID:2748
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,8941759805108545322,876037101407904072,131072 --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=5516 /prefetch:1
  2⤵
  PID:1512
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2088,8941759805108545322,876037101407904072,131072 --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=3092 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1372

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3992

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1348

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
84df16093540d8d88a327b849dd35f8c

SHA1
c6207d32a8e44863142213697984de5e238ce644

SHA256
220f89151a0f978b8bbe338b937af90417ae8c17b72a53f2acea7be2ac171a8c

SHA512
3077ccda8f86f47c41978d6cbb1dcad344e36f236251c8fd8c58d1c48a59106aecfdbe306357b7ebcfe3300bec8ea10ee0e59434c799e8c40e40e6c3c1bd4098

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

Filesize
547B

MD5
5352ab577b0031670ea3cb434553f12a

SHA1
c139beb0f1bfae6581744818735c9eb7fa67a703

SHA256
c4798b085e8a863334443e2b3bc838a4b6df1cb304c9f1f4d934b0e34e393a6b

SHA512
5d145f7f33185f620c8816b88cbcb335a6d289cc6edb66c72a51def0b5909f1f264aedeea8a5c46fd3fa280f656dda342af5709c2936f189d80082c88d66508e

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

Filesize
111B

MD5
285252a2f6327d41eab203dc2f402c67

SHA1
acedb7ba5fbc3ce914a8bf386a6f72ca7baa33c6

SHA256
5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026

SHA512
11ce7cb484fee66894e63c31db0d6b7ef66ad0327d4e7e2eb85f3bcc2e836a3a522c68d681e84542e471e54f765e091efe1ee4065641b0299b15613eb32dcc0d

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

Filesize
5KB

MD5
bfe576b297b9d150d8776c32dea2b1e1

SHA1
400d1c95e04e5d4d15524ea38feea509cfa524f6

SHA256
739e36767e4ecced9606671e758397d64221170e4c7b2fbc40fa3d32dc3642c9

SHA512
02209500d65935bd4aa760d1dd32d06dcdc4bdc7770b8262c1fbc0f5433e4fe7b25063fba67bc40066fea9621eac34e969ff345c2c3576211d76905ce5de0920

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

Filesize
5KB

MD5
66adaebbb39016bccd6958f191108c09

SHA1
be03617700095181689ce1ae36486ed0fac6b328

SHA256
2195a1a0928e4da023b22be3748f6ff0b135cb004a35738b4b34f4fff2717f7d

SHA512
8b3f1481349d1270fa8546dabfb09578faa1028a88f386e4e9e2deddc53be7638871da334dc16dd7cf1f0dc59941ef9009d9592aaf051545ac4e0f15d9d84663

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

Filesize
24KB

MD5
918ecd7940dcab6b9f4b8bdd4d3772b2

SHA1
7c0c6962a6cd37d91c2ebf3ad542b3876dc466e4

SHA256
3123072fba0ea8e8f960dd213659a0c96ce2b58683593b8ea84efac772b25175

SHA512
c96044501a0a6a65140bc7710a81d29dac35fc6a6fd18fbb4fa5d584e9dc79a059e51cbe063ca496d72558e459ffa6c2913f3893f0a3c0f8002bbca1d1b98ea2

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
10KB

MD5
93322c62be963e2965808a44704be426

SHA1
e1cf860b7275473a735fc074d0f5d19ef407b774

SHA256
7a7bca3a8f07887f352340c3fd65e6f59a2dd8cffa3916acb4789ed1d6164b90

SHA512
4157750bc875c8f73910995a8833b6525893ff843224761703888582116ef5fcdee80f8727fb810b52aa533469ae2b7abde08ac40caeb1551ef17e627066e7a7

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

Filesize
11KB

MD5
d56895f291e137858da502c5c6a10c8b

SHA1
8b53846e495750d007e8a3c4779441a0a06e69b7

SHA256
6f8639bf8f82194babc44ae6d9eaf4c3e5945c6cceef0157a77a7d5f59c6f116

SHA512
48a6d9be8cc25b10bd59f7bbf0abe1e57aa32731fa4780825d84bb92f62a89b6f3acc498fa3766ef1eebb5db46a39b261040e41f41fb69213f7f6b95d8986282

Download Submit