48fe699f325e6a37f7e9a01e2ff6f3b8e7f56a0d49a928c1befa37acc74a7174

Analysis

max time kernel
141s
max time network
128s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
23/01/2024, 20:41

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General

Target

48fe699f325e6a37f7e9a01e2ff6f3b8e7f56a0d49a928c1befa37acc74a7174.exe
Size

196KB
MD5

5eb837b123ae38fb189414cf6f071ad4
SHA1

d05e46ed48539cd97930417859346e2121283dcb
SHA256

48fe699f325e6a37f7e9a01e2ff6f3b8e7f56a0d49a928c1befa37acc74a7174
SHA512

92d750b5b1923c7085dcc3d1674f804329313ec510c8c15319737878f0489abf959fdf91defe405f72f3d96ef09e2ce1d4010e05c3c561bc9ef5ed0c4214f3fe
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOX:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXO

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2832	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2708	ayahost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\ayahost.exe	48fe699f325e6a37f7e9a01e2ff6f3b8e7f56a0d49a928c1befa37acc74a7174.exe
File opened for modification	C:\Windows\Debug\ayahost.exe	48fe699f325e6a37f7e9a01e2ff6f3b8e7f56a0d49a928c1befa37acc74a7174.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	2328	48fe699f325e6a37f7e9a01e2ff6f3b8e7f56a0d49a928c1befa37acc74a7174.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2832	2328	48fe699f325e6a37f7e9a01e2ff6f3b8e7f56a0d49a928c1befa37acc74a7174.exe	29
PID 2328 wrote to memory of 2832	2328	48fe699f325e6a37f7e9a01e2ff6f3b8e7f56a0d49a928c1befa37acc74a7174.exe	29
PID 2328 wrote to memory of 2832	2328	48fe699f325e6a37f7e9a01e2ff6f3b8e7f56a0d49a928c1befa37acc74a7174.exe	29
PID 2328 wrote to memory of 2832	2328	48fe699f325e6a37f7e9a01e2ff6f3b8e7f56a0d49a928c1befa37acc74a7174.exe	29

C:\Users\Admin\AppData\Local\Temp\48fe699f325e6a37f7e9a01e2ff6f3b8e7f56a0d49a928c1befa37acc74a7174.exe
"C:\Users\Admin\AppData\Local\Temp\48fe699f325e6a37f7e9a01e2ff6f3b8e7f56a0d49a928c1befa37acc74a7174.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\48FE69~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2832

C:\Windows\Debug\ayahost.exe
C:\Windows\Debug\ayahost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2708

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
196KB

MD5
9341844aaf260a445d5aa883976da2d2

SHA1
c9d12c95710dd7a9b696dcf0b456a2bfeec8581a

SHA256
0170cedd1a45f60263bf52ce676440bd2f1c198012ff437cc9d802efb410758c

SHA512
649eff867ab34c408d07a936f20abbceaa8fab563a5cbb438c7591c22ff8f88da217cc2a74b817616d1f855abc1e792576e50bebf610ca0d579618b03051fecf

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