04380c5e977a710afb3223b45629fa1df4aee28162cf988a95d4a8281ccc62d7

Analysis

max time kernel
154s
max time network
170s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11/10/2023, 09:57

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General

Target

04380c5e977a710afb3223b45629fa1df4aee28162cf988a95d4a8281ccc62d7.exe
Size

199KB
MD5

185f4debe3df934b74c46a542c85aac8
SHA1

d77441731a6b8a140f666ea75b16c2dd807511d4
SHA256

04380c5e977a710afb3223b45629fa1df4aee28162cf988a95d4a8281ccc62d7
SHA512

21934d97b6b4f17f6072ab406195a0caf115f7e46a911e3eb5c18005049134dff8106ff63f2133f9a76c1f5109306ca492b85a803d4be17dca99c232ad6e54d3
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOj:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXi

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1716	ayahost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\ayahost.exe	04380c5e977a710afb3223b45629fa1df4aee28162cf988a95d4a8281ccc62d7.exe
File opened for modification	C:\Windows\Debug\ayahost.exe	04380c5e977a710afb3223b45629fa1df4aee28162cf988a95d4a8281ccc62d7.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	2232	04380c5e977a710afb3223b45629fa1df4aee28162cf988a95d4a8281ccc62d7.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2760	2232	04380c5e977a710afb3223b45629fa1df4aee28162cf988a95d4a8281ccc62d7.exe	29
PID 2232 wrote to memory of 2760	2232	04380c5e977a710afb3223b45629fa1df4aee28162cf988a95d4a8281ccc62d7.exe	29
PID 2232 wrote to memory of 2760	2232	04380c5e977a710afb3223b45629fa1df4aee28162cf988a95d4a8281ccc62d7.exe	29
PID 2232 wrote to memory of 2760	2232	04380c5e977a710afb3223b45629fa1df4aee28162cf988a95d4a8281ccc62d7.exe	29

C:\Users\Admin\AppData\Local\Temp\04380c5e977a710afb3223b45629fa1df4aee28162cf988a95d4a8281ccc62d7.exe
"C:\Users\Admin\AppData\Local\Temp\04380c5e977a710afb3223b45629fa1df4aee28162cf988a95d4a8281ccc62d7.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\04380C~1.EXE > nul
  2⤵
  PID:2760

C:\Windows\Debug\ayahost.exe
C:\Windows\Debug\ayahost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1716

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
199KB

MD5
a9edc6795df79d41ab8aea2b80ed94b0

SHA1
518c6357a20a391ab8ab1a415cfdbdaa328c46e6

SHA256
3d4c1133c7af872b2bcfd6dd40a16056eedc4bac3ba735e7b5092a6d81c5835f

SHA512
d201bbca4cd14570d252ba676df900070696462e8ae0f6bd39612db70f2fbd1156643bd7a495541539a22b796d6c303bce4d7b3d37dcdd24e7475ceacd7e0026

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