hxxps://streamz[.]b-cdn[.]net/K2[.]zip

General

Target

https://streamz.b-cdn.net/K2.zip

Score

1^/10

Malware Config

Signatures

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

chrome.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe

Modifies data under HKEY_USERS 2 IoCs

Processes:

chrome.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "133608957460911334"	chrome.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	chrome.exe

Modifies registry class 1 IoCs

Processes:

chrome.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings chrome.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

chrome.exe

pid process

3588 chrome.exe
3588 chrome.exe
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs

Processes:

chrome.exe

pid process

3588 chrome.exe
3588 chrome.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000_Classes\Local Settings	chrome.exe

Suspicious use of AdjustPrivilegeToken 40 IoCs

Processes:

chrome.exe

description	pid	process
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe
Token: SeShutdownPrivilege	3588	chrome.exe
Token: SeCreatePagefilePrivilege	3588	chrome.exe

Suspicious use of FindShellTrayWindow 33 IoCs

Processes:

chrome.exe

pid	process
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

Processes:

chrome.exe

pid	process
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe
3588	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

chrome.exe

description	pid	process	target process
PID 3588 wrote to memory of 5048	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 5048	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 544	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 664	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 664	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe
PID 3588 wrote to memory of 4560	3588	chrome.exe	chrome.exe

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://streamz.b-cdn.net/K2.zip
1⤵
- Enumerates system info in registry
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3588

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=110.0.5481.104 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffa82fcab58,0x7ffa82fcab68,0x7ffa82fcab78
2⤵
PID:5048

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1672 --field-trial-handle=1704,i,9260341207051986925,6474022371110519348,131072 /prefetch:2
2⤵
PID:544

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2160 --field-trial-handle=1704,i,9260341207051986925,6474022371110519348,131072 /prefetch:8
2⤵
PID:664

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=2252 --field-trial-handle=1704,i,9260341207051986925,6474022371110519348,131072 /prefetch:8
2⤵
PID:4560

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2888 --field-trial-handle=1704,i,9260341207051986925,6474022371110519348,131072 /prefetch:1
2⤵
PID:4792

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2896 --field-trial-handle=1704,i,9260341207051986925,6474022371110519348,131072 /prefetch:1
2⤵
PID:2384

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4700 --field-trial-handle=1704,i,9260341207051986925,6474022371110519348,131072 /prefetch:8
2⤵
PID:4184

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4744 --field-trial-handle=1704,i,9260341207051986925,6474022371110519348,131072 /prefetch:8
2⤵
PID:4888

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4344 --field-trial-handle=1704,i,9260341207051986925,6474022371110519348,131072 /prefetch:8
2⤵
PID:372

C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe"
1⤵
PID:2624

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4424

C:\Users\Admin\AppData\Local\Temp\Temp1_K2.zip\lnstall.exe
"C:\Users\Admin\AppData\Local\Temp\Temp1_K2.zip\lnstall.exe"
1⤵
PID:3252

C:\Users\Admin\AppData\Local\Temp\Temp1_K2.zip\lnstall.exe
"C:\Users\Admin\AppData\Local\Temp\Temp1_K2.zip\lnstall.exe"
1⤵
PID:920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

Filesize
2B

MD5
d751713988987e9331980363e24189ce

SHA1
97d170e1550eee4afc0af065b78cda302a97674c

SHA256
4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

SHA512
b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

Filesize
7KB

MD5
c16f7b654ef05859a0a39c5b6bcac1e5

SHA1
c0550ff8c1e9a67ac5a1311a46d3a68b33dda0e9

SHA256
1116ade5f3aa6e7efc87913ca53fefac5eccf891e31b5cb6d6f1d1bcc159e504

SHA512
8a46558a71d2af98c8e163dbb9beb9c85d8ca6e979c2251e2165c3d311492de5253ebc664e8daa497b7ce46548d3afbb729c9adb6cd4d55ec10399ca47bdbefd

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

Filesize
129KB

MD5
4c99b07c2757986c17afb4df3b636baf

SHA1
9791b8f7485f2a0aadcc5b07adcadebcb614516b

SHA256
ef95162a94162461e31ad47b230b406631fe4191658d9089a0f86dce2c0baeba

SHA512
9d42f3ced414f0b3229b31aab94ba01d3cc7201e2202be841237f3ce206cd5d081e5b99a8e210eea120aabf7b6e4399e3fead99b1f9b17ee9957dc372a545737

Download Submit
C:\Users\Admin\Downloads\K2.zip.crdownload

Filesize
875KB

MD5
2190a3cd216ef98fa9816bf8a7c66787

SHA1
3b87f6cf85fc240c063909019e74fca9aa876b5e

SHA256
64c44396ea255d0b42efe7fc20f53124bd0fc35204b3f71f094150c44a247dc9

SHA512
d6b1a448c21870915306cb52be2edfe23619e6ec833aec6f4b3fac7c299921ead559eb1e4d7c23bebe7d7ca6a7d58bbd029a3eb679ef61e6a53720d12a7c4d78

Download Submit
\??\pipe\crashpad_3588_HVQJXMIUBVKRTUEX

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads