248f2cdd038b1992d9279dd4c53f7c16e18421cca471b95faccad1638829df07

Analysis

max time kernel
141s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 00:32

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General

Target

248f2cdd038b1992d9279dd4c53f7c16e18421cca471b95faccad1638829df07.exe
Size

197KB
MD5

6d326566d2c7668885fa6c16ed1161ad
SHA1

0e01ffec3107fd51427371e04c86fdacc4e8811b
SHA256

248f2cdd038b1992d9279dd4c53f7c16e18421cca471b95faccad1638829df07
SHA512

130fb84613c68a690345580d59ebb56d7e4701f4f545503c2a28e8f8f4a356ca6040fe43f241663f2010383970107f90de3c457ada194cee2a377f32f13c78ab
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCON:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXo

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1300	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2104	ayahost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\ayahost.exe	248f2cdd038b1992d9279dd4c53f7c16e18421cca471b95faccad1638829df07.exe
File opened for modification	C:\Windows\Debug\ayahost.exe	248f2cdd038b1992d9279dd4c53f7c16e18421cca471b95faccad1638829df07.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	2756	248f2cdd038b1992d9279dd4c53f7c16e18421cca471b95faccad1638829df07.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 1300	2756	248f2cdd038b1992d9279dd4c53f7c16e18421cca471b95faccad1638829df07.exe	29
PID 2756 wrote to memory of 1300	2756	248f2cdd038b1992d9279dd4c53f7c16e18421cca471b95faccad1638829df07.exe	29
PID 2756 wrote to memory of 1300	2756	248f2cdd038b1992d9279dd4c53f7c16e18421cca471b95faccad1638829df07.exe	29
PID 2756 wrote to memory of 1300	2756	248f2cdd038b1992d9279dd4c53f7c16e18421cca471b95faccad1638829df07.exe	29

C:\Users\Admin\AppData\Local\Temp\248f2cdd038b1992d9279dd4c53f7c16e18421cca471b95faccad1638829df07.exe
"C:\Users\Admin\AppData\Local\Temp\248f2cdd038b1992d9279dd4c53f7c16e18421cca471b95faccad1638829df07.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\248F2C~1.EXE > nul
  2⤵
  - Deletes itself
  PID:1300

C:\Windows\Debug\ayahost.exe
C:\Windows\Debug\ayahost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2104

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

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Downloads

C:\Windows\debug\ayahost.exe

Filesize
197KB

MD5
f7ff04cfccefe487afa27f313e0bbc8c

SHA1
1048698d6497002eb2b0eb4ee0d9bb418dfa8c92

SHA256
04b653814115d0806cbd38176bba9bb5ab0690d6b9656cab776eb0c94b079885

SHA512
7ff06ea958be9f2050c7476a01c46b175d15cdbb2acf680f6df1e0d4bf9a4d430be26e931e14744d8fb7e6c00ba1472b08d9d0bf17b3f7cbb6809dc635fd0ad6

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