hxxps://rcs-user-content-us[.]storage[.]googleapis[.]com/bde46f4b-ca89-4fcf-bafe-6622f35b513b/2d3625f070938c8a83f21d7f88169d831067951b4da35668f28542c434f8

Resubmissions

29-02-2024 08:58

240229-kw74jsca7t 1

29-02-2024 08:55

29-02-2024 08:47

29-02-2024 08:41

29-02-2024 08:38

29-02-2024 01:40

Analysis

max time kernel
145s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29-02-2024 01:40

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General

Target

https://rcs-user-content-us.storage.googleapis.com/bde46f4b-ca89-4fcf-bafe-6622f35b513b/2d3625f070938c8a83f21d7f88169d831067951b4da35668f28542c434f8

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
3476	msedge.exe
3476	msedge.exe
2272	msedge.exe
2272	msedge.exe
4544	identity_helper.exe
4544	identity_helper.exe
2748	msedge.exe
2748	msedge.exe
2748	msedge.exe
2748	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

pid	Process
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	1680	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1680	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe
2272	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 4956	2272	msedge.exe	15
PID 2272 wrote to memory of 4956	2272	msedge.exe	15
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3396	2272	msedge.exe	88
PID 2272 wrote to memory of 3476	2272	msedge.exe	89
PID 2272 wrote to memory of 3476	2272	msedge.exe	89
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90
PID 2272 wrote to memory of 3056	2272	msedge.exe	90

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://rcs-user-content-us.storage.googleapis.com/bde46f4b-ca89-4fcf-bafe-6622f35b513b/2d3625f070938c8a83f21d7f88169d831067951b4da35668f28542c434f8
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:2272
- 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,0x100,0x104,0xd8,0x108,0x7ff980ab46f8,0x7ff980ab4708,0x7ff980ab4718
  2⤵
  PID:4956
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2052,3036626648472058416,13087633165964204729,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2064 /prefetch:2
  2⤵
  PID:3396
- 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=2052,3036626648472058416,13087633165964204729,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2164 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3476
- 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=2052,3036626648472058416,13087633165964204729,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2880 /prefetch:8
  2⤵
  PID:3056
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2052,3036626648472058416,13087633165964204729,131072 --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=3384 /prefetch:1
  2⤵
  PID:1224
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2052,3036626648472058416,13087633165964204729,131072 --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:2872
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --field-trial-handle=2052,3036626648472058416,13087633165964204729,131072 --lang=en-US --service-sandbox-type=audio --mojo-platform-channel-handle=5040 /prefetch:8
  2⤵
  PID:2260
- 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=2052,3036626648472058416,13087633165964204729,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5416 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4544
- 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=2052,3036626648472058416,13087633165964204729,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5416 /prefetch:8
  2⤵
  PID:2280
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2052,3036626648472058416,13087633165964204729,131072 --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=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2568 /prefetch:1
  2⤵
  PID:4360
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2052,3036626648472058416,13087633165964204729,131072 --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=2256 /prefetch:1
  2⤵
  PID:4372
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2052,3036626648472058416,13087633165964204729,131072 --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=4660 /prefetch:1
  2⤵
  PID:2268
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2052,3036626648472058416,13087633165964204729,131072 --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=5644 /prefetch:1
  2⤵
  PID:2416
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2052,3036626648472058416,13087633165964204729,131072 --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=3152 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2748

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3296

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2268

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x524 0x50c
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1680

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
7740a919423ddc469647f8fdd981324d

SHA1
c1bc3f834507e4940a0b7594e34c4b83bbea7cda

SHA256
bdd4adaa418d40558ab033ac0005fd6c2312d5f1f7fdf8b0e186fe1d65d78221

SHA512
7ad98d5d089808d9a707d577e76e809a223d3007778a672734d0a607c2c3ac5f93bc72adb6e6c7f878a577d3a1e69a16d0cd871eb6f58b8d88e2ea25f77d87b7

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

Filesize
152B

MD5
9f44d6f922f830d04d7463189045a5a3

SHA1
2e9ae7188ab8f88078e83ba7f42a11a2c421cb1c

SHA256
0ae5cf8b49bc34fafe9f86734c8121b631bad52a1424c1dd2caa05781032334a

SHA512
7c1825eaefcc7b97bae31eeff031899300b175222de14000283e296e9b44680c8b3885a4ed5d78fd8dfee93333cd7289347b95a62bf11f751c4ca47772cf987d

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

Filesize
331B

MD5
671c7236a4f090109ef1820b0eed7514

SHA1
000b7220442259f9461cc642229913155a9a0560

SHA256
e6a7b6838898f8ef95ea0c7cab6ce485721dc3352fc191742f7b0ee11f252c2a

SHA512
3bacc36facff2ad7fe2d4d3bc0cf565f48812527051e1696b298aa95513bee1a516429f5ff9f4b2b6b864e1ddf83257f9fdcfd9e7d3cd2236e62ca08b059dced

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

Filesize
6KB

MD5
78b4be9792fccc2388e56f4dae2a850c

SHA1
2b8ed7d2d16af2e739cdb0d039ce4c44d0e74c8f

SHA256
41404da62e72c08233c130f848a7cb4e535abaa34637e234076910db1654f494

SHA512
a11ebbb31fa441bd449135ca3b1dce104be93374ca5707ff941eab3a7f3da9dd315735931850ec2aec60a2b82201023487d676730cfd93f8c8851ebe9e3e5f6e

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

Filesize
6KB

MD5
02a19b8493f5a8f4f5905177f867f515

SHA1
8e2ab25cc4a1f5e8c47513630a04bb9833d500ec

SHA256
ab5eb1214463ca9f608abe5d822928cdf454917a78446dcf7a814b248a7c616c

SHA512
92bb39e6922ae83555645b6f25731bd07a893f12990777c5da60ffcc4f05d421b56e57d4493dbce4a312b38fb0935742312f351d529ae5b10436b02b6afd0654

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
664be700e984f58e8e6a8556f022bf22

SHA1
b99c4d86a97aa06c7d9b62f73cfc4a08a37f447c

SHA256
5bac2340324247b03ac33466e9b6912c2af7494c8d9cc3110f55698e06e0c768

SHA512
388679f0f9aa387e2bc93dcf1eac1b9050a40b50c22147f53aa9e9bf64b1b190a5e65afa8de89cd72c9b8aeff9ae91cd57f3b086479214e2e618e77d379dac3c

Download Submit