6bf83fc38fe77f3f7c1da196dadc6230ce678540344b9f7eadfc972f6292106c

Analysis

max time kernel
147s
max time network
162s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11/10/2023, 20:19

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General

Target

6bf83fc38fe77f3f7c1da196dadc6230ce678540344b9f7eadfc972f6292106c.exe
Size

198KB
MD5

6dc077f6cde1f1e6f35887fa573b1ec8
SHA1

318af054832a56a007bf23554627138029a80edb
SHA256

6bf83fc38fe77f3f7c1da196dadc6230ce678540344b9f7eadfc972f6292106c
SHA512

818d1282f370643f932788cf0b4bf4046df8685bb0a091a4054a3cbd68c0f7d3a15a5c0868ce72c8c4a36d980beb810040d8e39111d303792440435be71c4425
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOb:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXG

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1092	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2232	ayahost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\ayahost.exe	6bf83fc38fe77f3f7c1da196dadc6230ce678540344b9f7eadfc972f6292106c.exe
File opened for modification	C:\Windows\Debug\ayahost.exe	6bf83fc38fe77f3f7c1da196dadc6230ce678540344b9f7eadfc972f6292106c.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2448	6bf83fc38fe77f3f7c1da196dadc6230ce678540344b9f7eadfc972f6292106c.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 1092	2448	6bf83fc38fe77f3f7c1da196dadc6230ce678540344b9f7eadfc972f6292106c.exe	29
PID 2448 wrote to memory of 1092	2448	6bf83fc38fe77f3f7c1da196dadc6230ce678540344b9f7eadfc972f6292106c.exe	29
PID 2448 wrote to memory of 1092	2448	6bf83fc38fe77f3f7c1da196dadc6230ce678540344b9f7eadfc972f6292106c.exe	29
PID 2448 wrote to memory of 1092	2448	6bf83fc38fe77f3f7c1da196dadc6230ce678540344b9f7eadfc972f6292106c.exe	29

C:\Users\Admin\AppData\Local\Temp\6bf83fc38fe77f3f7c1da196dadc6230ce678540344b9f7eadfc972f6292106c.exe
"C:\Users\Admin\AppData\Local\Temp\6bf83fc38fe77f3f7c1da196dadc6230ce678540344b9f7eadfc972f6292106c.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\6BF83F~1.EXE > nul
  2⤵
  - Deletes itself
  PID:1092

C:\Windows\Debug\ayahost.exe
C:\Windows\Debug\ayahost.exe
1⤵
- Executes dropped EXE
PID:2232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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
697bc2bcfd84a8ba0e8321b231e8c4b6

SHA1
fe12f6687b5af7dab12de26f2875794ae1473386

SHA256
fe02041af5633b117d1dc237b42cc6df9daed19130a76e977ca2628380f9c01d

SHA512
5b18e0631c54caf77c3ae286976cb23a2f1a4f958c902f8a401d3233d0a601383bca55d95a9b5f2565888f137b2554757dddb4d29d62da35c450fc4a0049085c

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