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

General

Target

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

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

lnstall.exe

pid process

4376 lnstall.exe

pid	process
4376	lnstall.exe

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
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	chrome.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "133608991659168508"	chrome.exe

Modifies registry class 1 IoCs

Processes:

chrome.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000_Classes\Local Settings chrome.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

chrome.exe

pid process

4600 chrome.exe
4600 chrome.exe
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs

Processes:

chrome.exe

pid process

4600 chrome.exe
4600 chrome.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000_Classes\Local Settings	chrome.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

chrome.exe7zG.exe

description	pid	process
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeRestorePrivilege	3424	7zG.exe
Token: 35	3424	7zG.exe
Token: SeSecurityPrivilege	3424	7zG.exe
Token: SeSecurityPrivilege	3424	7zG.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe
Token: SeShutdownPrivilege	4600	chrome.exe
Token: SeCreatePagefilePrivilege	4600	chrome.exe

Suspicious use of FindShellTrayWindow 34 IoCs

Processes:

chrome.exe7zG.exe

pid	process
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
3424	7zG.exe

Suspicious use of SendNotifyMessage 24 IoCs

Processes:

chrome.exe

pid	process
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe
4600	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

chrome.exe

description	pid	process	target process
PID 4600 wrote to memory of 2012	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2012	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 2192	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 3892	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 3892	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	chrome.exe	chrome.exe
PID 4600 wrote to memory of 4952	4600	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:4600

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,0x100,0x104,0xd8,0x108,0x7ff99cdeab58,0x7ff99cdeab68,0x7ff99cdeab78
2⤵
PID:2012

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=1700 --field-trial-handle=1868,i,4164923137251424555,3460227709396507845,131072 /prefetch:2
2⤵
PID:2192

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=2116 --field-trial-handle=1868,i,4164923137251424555,3460227709396507845,131072 /prefetch:8
2⤵
PID:3892

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=2164 --field-trial-handle=1868,i,4164923137251424555,3460227709396507845,131072 /prefetch:8
2⤵
PID:4952

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=3024 --field-trial-handle=1868,i,4164923137251424555,3460227709396507845,131072 /prefetch:1
2⤵
PID:1532

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=3032 --field-trial-handle=1868,i,4164923137251424555,3460227709396507845,131072 /prefetch:1
2⤵
PID:2700

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=4336 --field-trial-handle=1868,i,4164923137251424555,3460227709396507845,131072 /prefetch:8
2⤵
PID:2996

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=4784 --field-trial-handle=1868,i,4164923137251424555,3460227709396507845,131072 /prefetch:8
2⤵
PID:2520

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=4928 --field-trial-handle=1868,i,4164923137251424555,3460227709396507845,131072 /prefetch:8
2⤵
PID:3448

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:1832

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:2040

C:\Program Files\7-Zip\7zG.exe
"C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\K2\" -spe -an -ai#7zMap14327:66:7zEvent21168
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:3424

C:\Users\Admin\Downloads\K2\lnstall.exe
"C:\Users\Admin\Downloads\K2\lnstall.exe"
1⤵
- Executes dropped EXE
PID:4376

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
edb5177705ee01ca51f2c3f3f09f74da

SHA1
47e753eba7f75d89cd542f4bd8cc347edbaf2e63

SHA256
b37094bf10e920a3ca646dc246099684bcdd0eba8575361838ab450eecc74bdc

SHA512
936f39197a18dae8bbf5b90343c86c88460ed88252cfd0132ec8be810543a66a2dd1f2b9b019524152a16aef90eade2470c4c30c056e6039fade3359496bab82

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

Filesize
130KB

MD5
aa25b06ae5224e6cf46e6e3de9513d48

SHA1
9cb2c725d134d67be80d3c1eff8d49b07757a2af

SHA256
dd01a633d46a3f5290570cdb7c761bdfa070cb7a0e1c4e03ac0a937c75c898b1

SHA512
b3b45a0aa0e88ee27ce657c00cf17032d45069d0fde2ff3a2665e2f7e6717767a78cb117138004b742a9cf9d34efde23cbdd73430345600574d1bc20719ed185

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

Filesize
875KB

MD5
2190a3cd216ef98fa9816bf8a7c66787

SHA1
3b87f6cf85fc240c063909019e74fca9aa876b5e

SHA256
64c44396ea255d0b42efe7fc20f53124bd0fc35204b3f71f094150c44a247dc9

SHA512
d6b1a448c21870915306cb52be2edfe23619e6ec833aec6f4b3fac7c299921ead559eb1e4d7c23bebe7d7ca6a7d58bbd029a3eb679ef61e6a53720d12a7c4d78

Download Submit
C:\Users\Admin\Downloads\K2\lnstall.exe

Filesize
1.8MB

MD5
098ac4621ee0e855e0710710736c2955

SHA1
ce7b88657c3449d5d05591314aaa43bd3e32bdaa

SHA256
46afbf1cbd2e1b5e108c133d4079faddc7347231b0c48566fd967a3070745e7f

SHA512
3042785b81bd18b641f0a2b5d8aec8ef86f9bf1269421fb96d1db35a913e744eaff16d9da7a02c8001435d59befb9f26bc0bbfa6e794811abf4282ed68b185fe

Download Submit
\??\pipe\crashpad_4600_NBTIIQWQVXOTVNOG

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads