hxxps://s[.]yam[.]com/Erko6

Analysis

max time kernel
10s
max time network
15s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07-03-2024 07:35

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

https://s.yam.com/Erko6

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 6 IoCs

pid	Process
3304	msedge.exe
3304	msedge.exe
2884	msedge.exe
2884	msedge.exe
4700	identity_helper.exe
4700	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe
2884	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 4816	2884	msedge.exe	88
PID 2884 wrote to memory of 4816	2884	msedge.exe	88
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 2404	2884	msedge.exe	89
PID 2884 wrote to memory of 3304	2884	msedge.exe	90
PID 2884 wrote to memory of 3304	2884	msedge.exe	90
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91
PID 2884 wrote to memory of 3780	2884	msedge.exe	91

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://s.yam.com/Erko6
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:2884
- 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,0x100,0x104,0xd8,0x108,0x7ffdf38846f8,0x7ffdf3884708,0x7ffdf3884718
  2⤵
  PID:4816
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2124,12107732657399857233,10877236327310463025,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2132 /prefetch:2
  2⤵
  PID:2404
- 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=2124,12107732657399857233,10877236327310463025,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2176 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3304
- 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=2124,12107732657399857233,10877236327310463025,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2660 /prefetch:8
  2⤵
  PID:3780
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,12107732657399857233,10877236327310463025,131072 --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=3352 /prefetch:1
  2⤵
  PID:2648
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,12107732657399857233,10877236327310463025,131072 --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:4948
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,12107732657399857233,10877236327310463025,131072 --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=4820 /prefetch:1
  2⤵
  PID:2000
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,12107732657399857233,10877236327310463025,131072 --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=3744 /prefetch:1
  2⤵
  PID:4844
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,12107732657399857233,10877236327310463025,131072 --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=3612 /prefetch:1
  2⤵
  PID:4588
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,12107732657399857233,10877236327310463025,131072 --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=3620 /prefetch:1
  2⤵
  PID:2204
- 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=2124,12107732657399857233,10877236327310463025,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5652 /prefetch:8
  2⤵
  PID:3932
- 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=2124,12107732657399857233,10877236327310463025,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5652 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4700
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2124,12107732657399857233,10877236327310463025,131072 --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=5244 /prefetch:1
  2⤵
  PID:4596

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2724

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2824

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

Loading Replay Monitor...

Downloads

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

Filesize
152B

MD5
fd7944a4ff1be37517983ffaf5700b11

SHA1
c4287796d78e00969af85b7e16a2d04230961240

SHA256
b54b41e7ce5600bc653aa7c88abb666976872b2d5e2d657bfc1147a0b49e9d74

SHA512
28c58a2ccf39963a8d9f67ea5b93dbccf70b0109b2c8a396a58389cdec9db1205523a95730485bcbc9d533867cbf0e7167ad370fd45740e23656d01d96ee543b

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

Filesize
152B

MD5
a774512b00820b61a51258335097b2c9

SHA1
38c28d1ea3907a1af6c0443255ab610dd9285095

SHA256
01946a2d65e59b66ebc256470ff4861f32edee90a44e31bf67529add95cafef4

SHA512
ce109be65060a5e7a872707c6c2ccce3aacd577e59c59d6e23e78d03e3d502f2707713fda40a546ed332e41a56ef90297af99590a5ab02f686a58bcbf3a82da1

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

Filesize
6KB

MD5
3cbbafc79d559e4f68eb258b62799751

SHA1
39a3c48ee379c5af4298e083f5dd240c3f851c2a

SHA256
537a87729b9a2a9afe6cd85f2b5bb1df662a3f0f3c05948b9d159599a0cf4c13

SHA512
a5c9feb77b358e2a3b7c9947d3bca2381833fd3d347bb3e1ca997fced70bf7a3eb40be0e0ac2478d9fb2ba87931cfe93c5533665ef77b2cc9b131045ddb7ad66

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