9a928cc3a35b6c37fb0e34286f52aa51539b1cceb77766d2577bc39b454867db

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
14/10/2023, 01:00

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General

Target

9a928cc3a35b6c37fb0e34286f52aa51539b1cceb77766d2577bc39b454867db.exe
Size

198KB
MD5

d05e1be9861f8a1235f5644583c5ba67
SHA1

d530c4c099f1ddd2e35c2f6545f65e91f8610d02
SHA256

9a928cc3a35b6c37fb0e34286f52aa51539b1cceb77766d2577bc39b454867db
SHA512

a09e2541ce5846b0f6e26ab02dc3d24fba361d81a94cac28621a253758d846d25d9069ada4925f438b532be5ce0a66acb49e90481073cc8beac794fa2898bf8f
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOt:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXY

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2140	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
280	ayahost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\ayahost.exe	9a928cc3a35b6c37fb0e34286f52aa51539b1cceb77766d2577bc39b454867db.exe
File created	C:\Windows\Debug\ayahost.exe	9a928cc3a35b6c37fb0e34286f52aa51539b1cceb77766d2577bc39b454867db.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	2972	9a928cc3a35b6c37fb0e34286f52aa51539b1cceb77766d2577bc39b454867db.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 2140	2972	9a928cc3a35b6c37fb0e34286f52aa51539b1cceb77766d2577bc39b454867db.exe	29
PID 2972 wrote to memory of 2140	2972	9a928cc3a35b6c37fb0e34286f52aa51539b1cceb77766d2577bc39b454867db.exe	29
PID 2972 wrote to memory of 2140	2972	9a928cc3a35b6c37fb0e34286f52aa51539b1cceb77766d2577bc39b454867db.exe	29
PID 2972 wrote to memory of 2140	2972	9a928cc3a35b6c37fb0e34286f52aa51539b1cceb77766d2577bc39b454867db.exe	29

C:\Users\Admin\AppData\Local\Temp\9a928cc3a35b6c37fb0e34286f52aa51539b1cceb77766d2577bc39b454867db.exe
"C:\Users\Admin\AppData\Local\Temp\9a928cc3a35b6c37fb0e34286f52aa51539b1cceb77766d2577bc39b454867db.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\9A928C~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2140

C:\Windows\Debug\ayahost.exe
C:\Windows\Debug\ayahost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:280

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
198KB

MD5
a1c0ba2a1523a2d4d33357b8b627d6af

SHA1
426a220e3971b04f891365fc9da639384cf669c0

SHA256
da1ce35ba54db028bef4db4cf95d99af2f44b5782c5e32cb394d10e4ce149587

SHA512
0fac3a91a7bc6e28bd2c4080b7c81494f981144d012821249437ad7e1164b820ceb312edda4909417ea8a5a1d3e08a110d067694a540e414686c0706d49c3e4f

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C:\Windows\debug\ayahost.exe

Filesize
198KB

MD5
a1c0ba2a1523a2d4d33357b8b627d6af

SHA1
426a220e3971b04f891365fc9da639384cf669c0

SHA256
da1ce35ba54db028bef4db4cf95d99af2f44b5782c5e32cb394d10e4ce149587

SHA512
0fac3a91a7bc6e28bd2c4080b7c81494f981144d012821249437ad7e1164b820ceb312edda4909417ea8a5a1d3e08a110d067694a540e414686c0706d49c3e4f

Download Submit