381805217deaa9ef6f489347977fa05b36d1bd56ce086285659fa7734528f2a7

Analysis

max time kernel
142s
max time network
128s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
13/10/2023, 22:47

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

381805217deaa9ef6f489347977fa05b36d1bd56ce086285659fa7734528f2a7.exe
Size

198KB
MD5

900291251be54ff9a2c7f288e05eb47a
SHA1

d4c18a05a1174e38b848a52494b070f22b1c3329
SHA256

381805217deaa9ef6f489347977fa05b36d1bd56ce086285659fa7734528f2a7
SHA512

f846ab221bde72a638c160bd221a1b3c8c1162409dfdb9aaf64462b89fc4892ce0a2c6e2be2929a2550057eb502eda64a70965c4fa5c7ac957200cf4983976e9
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOo:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXJ

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2264	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2204	ayahost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\ayahost.exe	381805217deaa9ef6f489347977fa05b36d1bd56ce086285659fa7734528f2a7.exe
File opened for modification	C:\Windows\Debug\ayahost.exe	381805217deaa9ef6f489347977fa05b36d1bd56ce086285659fa7734528f2a7.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	1744	381805217deaa9ef6f489347977fa05b36d1bd56ce086285659fa7734528f2a7.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 2264	1744	381805217deaa9ef6f489347977fa05b36d1bd56ce086285659fa7734528f2a7.exe	29
PID 1744 wrote to memory of 2264	1744	381805217deaa9ef6f489347977fa05b36d1bd56ce086285659fa7734528f2a7.exe	29
PID 1744 wrote to memory of 2264	1744	381805217deaa9ef6f489347977fa05b36d1bd56ce086285659fa7734528f2a7.exe	29
PID 1744 wrote to memory of 2264	1744	381805217deaa9ef6f489347977fa05b36d1bd56ce086285659fa7734528f2a7.exe	29

C:\Users\Admin\AppData\Local\Temp\381805217deaa9ef6f489347977fa05b36d1bd56ce086285659fa7734528f2a7.exe
"C:\Users\Admin\AppData\Local\Temp\381805217deaa9ef6f489347977fa05b36d1bd56ce086285659fa7734528f2a7.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\381805~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2264

C:\Windows\Debug\ayahost.exe
C:\Windows\Debug\ayahost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2204

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
198KB

MD5
248f5f6693ca8410888a5a2ec78ea797

SHA1
552be430075a6501f62de177eddd4a4d82838d85

SHA256
336396f4b92f49eb150d0688a82c44cbaaac1ed026c4a766719917afe174e264

SHA512
0ddcf39b08f50b269c01d09fdbf30a1298ff38e1b7b4ed9ea6eed497dca2faa33b588ca4a152e83bbea2339bf414748573919c021a04d38e84d9e6fdbee701fe

Download Submit