4c286ff496b87c920270544c8ecad26b43ef7f680abc666392a38cd010dc0cc5

Analysis

max time kernel
141s
max time network
128s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
10/10/2023, 06:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

4c286ff496b87c920270544c8ecad26b43ef7f680abc666392a38cd010dc0cc5.exe
Size

1.2MB
MD5

19f2b3b5016bfa0e18cb8a085968734b
SHA1

6fce10f2d9ac7e94ca3c27eb66cf0ef0bf799dfe
SHA256

4c286ff496b87c920270544c8ecad26b43ef7f680abc666392a38cd010dc0cc5
SHA512

f58010a725b9d58a9f9c4a98d7e493a16a6472eae7584d19cd3e149f76b6c9629421322ffc626f8b0619fc2135df75fcf6f4210957cfec1a3bafab809e8274f3
SSDEEP

24576:GHXXX/XXXFqIIIcXXX5j2XXXcXXXfXXXxXXXLIII+Ph2kkkkK4kXkkkkkkkkhLXM:G9qIIIUjfIIIAbazR0vKLXZF

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1144	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1952	ayahost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\ayahost.exe	4c286ff496b87c920270544c8ecad26b43ef7f680abc666392a38cd010dc0cc5.exe
File opened for modification	C:\Windows\Debug\ayahost.exe	4c286ff496b87c920270544c8ecad26b43ef7f680abc666392a38cd010dc0cc5.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ayahost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	ayahost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1488	4c286ff496b87c920270544c8ecad26b43ef7f680abc666392a38cd010dc0cc5.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 1144	1488	4c286ff496b87c920270544c8ecad26b43ef7f680abc666392a38cd010dc0cc5.exe	29
PID 1488 wrote to memory of 1144	1488	4c286ff496b87c920270544c8ecad26b43ef7f680abc666392a38cd010dc0cc5.exe	29
PID 1488 wrote to memory of 1144	1488	4c286ff496b87c920270544c8ecad26b43ef7f680abc666392a38cd010dc0cc5.exe	29
PID 1488 wrote to memory of 1144	1488	4c286ff496b87c920270544c8ecad26b43ef7f680abc666392a38cd010dc0cc5.exe	29

C:\Users\Admin\AppData\Local\Temp\4c286ff496b87c920270544c8ecad26b43ef7f680abc666392a38cd010dc0cc5.exe
"C:\Users\Admin\AppData\Local\Temp\4c286ff496b87c920270544c8ecad26b43ef7f680abc666392a38cd010dc0cc5.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\4C286F~1.EXE > nul
  2⤵
  - Deletes itself
  PID:1144

C:\Windows\Debug\ayahost.exe
C:\Windows\Debug\ayahost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1952

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:\Windows\debug\ayahost.exe

Filesize
1.2MB

MD5
3b165545769444361931e733cc9ba581

SHA1
4096894145645cb58ee3966a03a71a3c9b70e6fe

SHA256
4851c8bd2e11a143bdda12be08dd6f7acf6d20fbce002ce73e3da0153f0ee863

SHA512
82fe4c3018c1ed628e9fc67c9dd2f778de4b0c121ea30e1c35218fa0dc483b5c77fc78f6edf30dde1eb19b2bf05b9aaebd65f8d740699541254679edd2c19046

Download Submit