740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
05-08-2022 11:13

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General

Target

740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exe
Size

5.9MB
MD5

1fb5d967f92174e0bbb15262f8cd209f
SHA1

76fbd5b88154976887b5099c21666ca3be2cd76e
SHA256

740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024
SHA512

a0ff48d7e219c71828d0cbde56f59af7326dff4da021789cefc68d1ea90ea467eb98b7418070a3007a63f58ad5987dc9effe79bc143a33c5ecbe1a963a708ea9

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

RuntimeBroker.exe

pid process

1268 RuntimeBroker.exe

pid	process
1268	RuntimeBroker.exe

Drops file in System32 directory 4 IoCs

Processes:

740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exeRuntimeBroker.exe

description	ioc	process
File created	C:\Windows\system32\Windows\RuntimeBroker.exe	740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exe
File opened for modification	C:\Windows\system32\Windows\RuntimeBroker.exe	740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exe
File opened for modification	C:\Windows\system32\Windows	740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exe
File opened for modification	C:\Windows\system32\Windows	RuntimeBroker.exe

Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

4992 schtasks.exe
3860 schtasks.exe

pid	process
4992	schtasks.exe
3860	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exeRuntimeBroker.exe

description	pid	process
Token: SeDebugPrivilege	2556	740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exe
Token: SeDebugPrivilege	1268	RuntimeBroker.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exeRuntimeBroker.exe

description	pid	process	target process
PID 2556 wrote to memory of 4992	2556	740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exe	schtasks.exe
PID 2556 wrote to memory of 4992	2556	740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exe	schtasks.exe
PID 2556 wrote to memory of 1268	2556	740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exe	RuntimeBroker.exe
PID 2556 wrote to memory of 1268	2556	740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exe	RuntimeBroker.exe
PID 1268 wrote to memory of 3860	1268	RuntimeBroker.exe	schtasks.exe
PID 1268 wrote to memory of 3860	1268	RuntimeBroker.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exe
"C:\Users\Admin\AppData\Local\Temp\740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2556

C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Google Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:4992

C:\Windows\system32\Windows\RuntimeBroker.exe
"C:\Windows\system32\Windows\RuntimeBroker.exe"
2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1268

C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Google Update" /sc ONLOGON /tr "C:\Windows\system32\Windows\RuntimeBroker.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:3860

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\System32\Windows\RuntimeBroker.exe
Filesize
5.9MB

MD5
1fb5d967f92174e0bbb15262f8cd209f

SHA1
76fbd5b88154976887b5099c21666ca3be2cd76e

SHA256
740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024

SHA512
a0ff48d7e219c71828d0cbde56f59af7326dff4da021789cefc68d1ea90ea467eb98b7418070a3007a63f58ad5987dc9effe79bc143a33c5ecbe1a963a708ea9

Download Submit
C:\Windows\system32\Windows\RuntimeBroker.exe
Filesize
5.9MB

MD5
1fb5d967f92174e0bbb15262f8cd209f

SHA1
76fbd5b88154976887b5099c21666ca3be2cd76e

SHA256
740634ecedd318ac8f84c360f5d253ff836c5e60da6542c65a140b17b4ba8024

SHA512
a0ff48d7e219c71828d0cbde56f59af7326dff4da021789cefc68d1ea90ea467eb98b7418070a3007a63f58ad5987dc9effe79bc143a33c5ecbe1a963a708ea9

Download Submit
memory/1268-133-0x0000000000000000-mapping.dmp

Download
memory/1268-137-0x00007FFDF8D00000-0x00007FFDF97C1000-memory.dmp

Filesize
10.8MB

Download
memory/1268-139-0x00000000205B0000-0x0000000020600000-memory.dmp

Filesize
320KB

Download
memory/1268-140-0x0000000020BC0000-0x0000000020C72000-memory.dmp

Filesize
712KB

Download
memory/1268-141-0x00007FFDF8D00000-0x00007FFDF97C1000-memory.dmp

Filesize
10.8MB

Download
memory/2556-130-0x00000000002D0000-0x00000000008BA000-memory.dmp

Filesize
5.9MB

Download
memory/2556-131-0x00007FFDF8D00000-0x00007FFDF97C1000-memory.dmp

Filesize
10.8MB

Download
memory/2556-136-0x00007FFDF8D00000-0x00007FFDF97C1000-memory.dmp

Filesize
10.8MB

Download
memory/3860-138-0x0000000000000000-mapping.dmp

Download
memory/4992-132-0x0000000000000000-mapping.dmp

Download